61 10 3494 https://omeka.ibu.edu.ba/files/original/ae1721bbd12a66a8e0e7ef79b40a1b2e.docx ad879ca112e4c295580c818165f5cc94 https://omeka.ibu.edu.ba/files/original/aec608769a695edb0f63650fa23ffbaa.pdf 87afc2de4874a1c3bc22acb22a61a2c8 PDF Text Text COMPARATIVE ANALYSIS OF HARMONIC DISTORTIONS FROM VARIABLE FREQUENCY INDUCTION MOTOR DRIVES Miglena Hristova University of Ruse, Ruse, Bulgaria mcankova@uni-ruse.bg Vyara Ruseva University of Ruse, Ruse, Bulgaria vruseva@uni-ruse.bg Dimo Dimov University of Ruse, Ruse, Bulgaria dnd@uni-ruse.bg Keywords:energy efficiency of variable frequency drives, current harmonics, total harmonic distortion, crest factor. ABSTRACT The undoubted advantages of induction motor drives fed by frequency inverters, for energy efficiency improvement inclusive, have led to their increasing utilization in practice. Their application results in generation of harmonic distortions that have an adverse effect on electromagnetic compatibility. This paper presents a study of the degree of harmonic current distortions in the electric supply system caused by variable frequency drives of different manufacturers at varying loads. It has been established how the values of the total harmonic distortion and the crest factor change at no load and at rated load applied to the studied frequency inverters. As a result of the performed analysis of the generated harmonics, the most pronounced harmonics of the power line current have been determined, which must be filtered in order to prevent disturbance of the electromagnetic compatibility. � Dublin Core The Dublin Core metadata element set is common to all Omeka records, including items, files, and collections. For more information see, http://dublincore.org/documents/dces/. Extent The size or duration of the resource. 2044 Title A name given to the resource COMPARATIVE ANALYSIS OF HARMONIC DISTORTIONS FROM VARIABLE FREQUENCY INDUCTION MOTOR DRIVES Author Author HRISTOVA, Miglena RUSEVA, Vyara DIMOV, Dimo Abstract A summary of the resource. Keywords:energy efficiency of variable frequency drives, current harmonics, total harmonic distortion, crest factor. ABSTRACT The undoubted advantages of induction motor drives fed by frequency inverters, for energy efficiency improvement inclusive, have led to their increasing utilization in practice. Their application results in generation of harmonic distortions that have an adverse effect on electromagnetic compatibility. This paper presents a study of the degree of harmonic current distortions in the electric supply system caused by variable frequency drives of different manufacturers at varying loads. It has been established how the values of the total harmonic distortion and the crest factor change at no load and at rated load applied to the studied frequency inverters. As a result of the performed analysis of the generated harmonics, the most pronounced harmonics of the power line current have been determined, which must be filtered in order to prevent disturbance of the electromagnetic compatibility. Publisher An entity responsible for making the resource available International Burch University Date A point or period of time associated with an event in the lifecycle of the resource 2013-05-24 Keywords Keywords. Article PeerReviewed Identifier An unambiguous reference to the resource within a given context ISSN 2233-1565 https://omeka.ibu.edu.ba/files/original/27c771e211bf79f89c64699848e7ab60.pdf 3692a898a672f237f67e699a0f277570 PDF Text Text 1st International Syposium on Sustainable Development, June 9-10 2009, Sarajevo Comparative Analysis Of Ict Performances Of Turkey And Bosnia And Herzegovina By Custom Scorecard Model Selahattin Kaynak Ataturk University, Ispir Hamza Polat VocationalTraining School Erzurum Turkey skaynak @atauni.edu.tr Hüseyin Özer Ataturk University Faculty of Economics and Administrative Sciences Department of Economics, Erzurum Turkey hozer@atauni.edu.tr Abstract: Information and Com munication Technologies (ICT), being com monly used in allthe sectors of an economy and one of the most important driving forces for social development in the last 20 years,facilitated to product goods and service for producers. Besides that, ICT has been begun to substitute other production factors, by reason of being cheaper of communication tools such as computer or internet and the changes observed in these tools. As it is looked consumers' perspective, falls of the prices and the high performance in these technologies reasoned in being used ofthem in every moment of daily life. The main purpose of this study is to compare the ICT performances of Turkey and Bosnia Herzegovina, based on the data set of the World Bank. KA M'S Custom Scorecards model developed by the World Bank has been used in the study. As a result of the analyses, it has been found that Turkey has delivered a better performance in generalthan Bosnia Herzegovina has done, except for the variables of Internet Users and Price Basket for Internet. Keywords: ICT, Custom Scorecards, Turkey, Bosnia And Herzegovina 1. Introduction Nowadays, information stored or newly generated in any place in the world are transmitted to corporations located in another locations by means of ICTs. In economic concept that approach defined as externality creates opportunity for organizations which fails to generate information to provide welfare as operators. So it creates supportfor the productivity of organizations (Saygılı, 2003:100). Further to rapid fallin the prices of computer and similar technological communication devices applications and expansions of ICT earned acceleration. As the natural outcome of that circumstance, ICT devices regularly and in significantlevel have been substituted instead of classical production factors such as labor and capital (Dursun and Vardareri, 2007:76). Intense and fast sophisticationsin ICT deeply affected economic and sociallife. That occlusion presently keeps its influence in increasing amount dynamically. ICT emerging as the indispensable component of public life connecting producers,consumers and state on a network setting moved economic operations related to goods and services to electronic environment. That related process operating in a different situation compare to traditional economic activities, enabling markets to possess transparent structure availed cost advantages in the production of plenty of goods and services. Rapid expansionsin ICT resulted in consumer satisfaction. Technological innovations transforming socio-economic life styles and cultural forms are considered as the discoveries of paper, printing house, telegram, steam machine, computer and internet. Discovery of paper and printing house while leading to expansions of information accumulation owned by mankind, discovery of steam machine has been a corner stone for the domination of mankind to element and mankind commenced to apply those mechanical settings instead of living tissues as production and transportation purpose. Telegram, telephone,telex, computer and internet communication devices applied by humans created transformation in 266 �1st International Syposium on Sustainable Development, June 9-10 2009, Sarajevo time and location perceptions and by means of ICT devices data flow accelerating in an extraordinary way led to widespread of innovations in various field (Yücel, 2006:6).ICT facilitating education and business life, enabled fast and productive communication emerged newly arising professional fields, eliminating some of the monotonous occupations. Rapid advancements in the field of ICT developed a new dimension in competition. Competitive force based on cheap labor and natural resources has been substituted by technological manufacturing processes adequately strong to compete in international markets. Corporations are providing increasing gains from ICT in their competition (Nelson, 2006). Those organizations applying advanced technologies are also providing great utilities in competitive power. In line with those developments, globalization in competition motivates organizationstointensifytheirinvestmentsininformation,qualified staff and information technologies. Because most fundamentalfeaturesin competition are concentrated on information. Eventually, ICT devices transform the world into a great village. At the present time, none of the transformations remain in domestic and nationallimits. Development or a method in somewhere on earth easily affects firms established in some other pars. Corporations for avoiding negative impacts from the advancements and to foresee the sophistications earlier and to gain information about those developments obliged to make adaptations (Ekinci, 2006: 56). 2. Summary Of Literature Aboutthe overall performances ofICT studiesinliteratureinterrelations between production, value added and productivity performed by ICT after 1990 have been investigated. Even though there is no consensus,ICT is found creating great effectin economic growth enabling productivity rise (Jorgenson and Stiroh 2000; Scarpetta, et. Al. 2000; Oliner and Sichel,2000). Empirical analysis,for example,long term productivity rise afterthe second part of 1990s indicates that approximately half of the productivity rise experienced two folds was originated from ICT sectors (Oliner and Sichel, 2000: 11). At the corporate level in executed lots of studies, a statistically positive correlation was found between ICT and productivity. Because, investigation at corporate level allows to measure the ICT’s impact over the quality and diversification of manufacturing process. However, excessively combining the data may musk those effect (Dewan and Kraemer, 2000:549). In the content of studies evaluating the subject in terms of micro econometric way, ICT’s positive contribution to the productivity rise will be found much easily.In that respect, for 1987-1991 era at the end of the investigation held by Brynjolfsson and Hitt over 367 gigantic USA firms covering 5 years time length subject to outcomes ICT expenses were found creating significant gains at corporate productions and productivity (Dursun &Vardareri, 2007). In a comparative analysis executed in Greece and Switzerland on the firms competing in a big size sector was founded statistically significant positive effects for physical capital,ICT capital, human capital and ‘‘employee voice”-oriented organizational practices for both samples (Arvanitis and Loukis, 2009: 43). Technology was adopted earlierin USA compare to Europe. In some of the countries adopted technology earlier and established required economic supports and legal organizations ICT created greater gain for productivity growth. ICT’s lesser impact over the productivity in Eurpoean countries compare to USA proves that(Matteucci& O’Mahony & Robinson & Zwick, 2005: 359). On the other hand, in macro studies Yamak and Kolçak (2007) provided different outcomes subject to developed and developing nations. ICT’s impact over economic growth found positive in developed and newly industrialized nations but, in developing nations no support has been created (Lee, Gholami and Tong, 2005: 2009). By means of using plenty ofindustrial data from USA and England in a study executed by dynamic panel data method, ICT has been found creating significant and positive effect(O’Mahony and Vecchi, 2005:615). In Spain in orderto find outthe contribution of ICT over economic development positive impact over productivity levels was found (Martinez, et all, 2008: 1596). ICT is creating direct and indirect effects for labor market. Employment rise in ICT sector and productivity level is usually at higher levels compare to alternative sectors. Demand for labor force possessing skills to use ICT devices is rising up. In an application performed for Spanish firms a positive correlation between the ICT and skill development was found (Bayo-Moriones et all., 2008:122). Searching out ICT’s influence on labor productivity for Turkey forthe era ranging between 1980-2004 estimating ICT’s impact over labor productivity levels Cobb-Douglas applied productivity function. Findings provided that there is no significant statistical correlation between ICT investments per labor productivity and labor (Dursun and Vardareri, 2007:76). According to Pilat and Lee (2001) ICT’s gain over productivity increase isrestricted in their own sectors. In plenty of nations globally even productivity made by ICT devices is restrained in infinitesimal magnitude, by means of policies contributing the expansion of those technologies in economics and their efficient use very rapid factor productivity rise is provided all around the nation. Ramlan et. al.(2007) the contribution of ICT to 267 �1st International Syposium on Sustainable Development, June 9-10 2009, Sarajevo Malaysian economic growth is the highest at an average of 13 percent for the period 1966 to 2005 against 4.7 percent for Total Factor Productivity (TFP), 9.7 percent for Gross Domestic Product (GDP), 9.6 percent for capital, and 3.0 percent for labor. In a research study completed in five Asian states (Malaysia, Indonesia, Philippine, Singapore and Thailand) (Ahmed, 2007:2254) ICTs has been found providing positive impact over the factor productivity. 3. Methodology 3.1. Purpose of the Research Purpose of that research is to investigate the performances of Turkey and Bosnia Herzegovina based on ICT variables and to find out the distance of those two states in the course of transforming into information societies. There are three reasons to selectthose states. 1. Based on the regional countrywide classification of World Bank under KA M conceptthey are located in Europe and Middle Asia region consisted of 27 states. First conditions of making comparison of different states countries have to be located in the same class according to regional income level and humanitarian development.(http://go.worldbank.org/CY9PINAVF0). 2. According to International Telecommunication Union (ITU), IDI (ICT Development Index) points states are divided into four sections (High, Upper, Medium, Low). Turkey and Bosnia Herzegovina are classified inthe same group (Upper) (ITU, 2009: 49). 3. Turkey from the year 1995 forreinforcing the economic relations of Bosnia Herzegovina signed up a series oflegallaws. At the beginning those laws were “Trade and Economic With Turkey Agreement”, “Mutual Reinforcements and Protections of Investments” and “Free Trade Act”. (http://www.dtm.gov.tr/dtmadmin/upload/ANL/AvrupaDb/Bosna_Hersek.pdf). 3.2. The Model In the study World bank’s “Custom Scorecards” model was applied. Custom Scorecards model is an elastic model enabling the comparison of at least three models. There is no classification to select a variable. Custom Scorecards model compares ICT performances of the nations and use 12 variables. Those variables are stated under another nexttitle (http://go.worldbank.org/JGA O5XE940). 3.3. Data and Variables In the present study variables applied in the measurement of ICT performances of nations or regions W orld Bank variables were used as reference. In ICT calculations 12 indicator were used. But, Bosnia Herzegovina’s ICT Expenditure as % of GDP and Daily Newspapers per 1,000 People and Turkey’s indicators Daily Newspapers per 1,000 People since there is no data found those indicators were excluded from the investigations. Custom Scorecards modelis an elastic model an does not have any restrain in variable selection. Variables going to be applied fortwo countries are depicted down: • Telephones Per 1,000 People • Telephone Mainlines Per 1,000 People • Mobile Phones Per 1,000 People • Computers Per 1,000 Persons • TV Households with Television • International Internet Bandwidth • Internet Users Per 1,000 people • Price Basket for Internet, US$ per month • Availability of e-Government Services • Extent of Business Internet Use 4. Empirical Analysis Date of Bosnia Herzegovina and Turkey covered inthe study forICT variables are converged into standard form inthe equation (1). 268 �1st International Syposium on Sustainable Development, June 9-10 2009, Sarajevo Normalized (u) = 10*(1-Nh/Nc) (1) The normalization procedure used in the KA M is as follows1: 1. The actual data (u)is collected from World Bank datasets and internationalliterature for allthe variables and countries. 2. Ranks are allocated to countries based on the absolute values (actual data)that describe each and every one of 83 variables (rank u). Countries with the same performance are allocated the same rank. Therefore, the rank equals 1 for a countrythat performs the best among the countriesin our sample on a particular variable(thatis,it has the highest score),the rank equalsto 2 for a country that performs second best, and so on. 3. The number of countries with higher rank (Nh) is calculated for each country. 4. The following formula is used in orderto normalize the scores for every country on every variable according totheirranking and in relation tothe total number of countries in the sample (Nc) with available data. 5. The above formula allocates a normalized score from 0 to 10 for each country. 10 isthe top score for the top performers and 0 the worstfor the laggards. Variable Total Telephones per 1,000 People, 2006 Main Telephone Lines per 1000 People, 2006 Mobile Phones per 1,000 People, 2006 Computers per 1,000 People, 2005 Households with Television (%), 2005 International Internet Bandwidth (bits pp), 2005 Internet Users per 1000 People, 2006 Price Basket for Internet (US$ per month), 2005 Availability of e-Gov. Services (1-7), 2006 Extent of Business Internet Use (1-7), 2006 Bosnia and Herzegovina (Group: Europe and Central Asia) actual normalized Turkey (Group: Europe and Central Asia) actual normalized 730.00 3.70 980.00 4.81 250.00 4.81 260.00 5.56 480.00 2.96 720.00 5.19 50.00 3.85 60.00 4.62 87.20 1.54 92.20 4.62 39.67 3.60 405.19 6.00 240.00 5.93 170.00 4.07 7.78 8.52 11.61 5.93 2.78 3.75 3.78 7.92 3.80 5.60 3.80 5.60 Table 1: ICT Variable Values of Turkey and Bosnia Herzegovina As seen from Table 1 according to Custom Scorecards modelICT indicator value sof Bosnia Herzegovina is stayed in the range of 1.54 and 8.52 and Turkey’s value isstayed between 4.07 and 7.93. Strongest value of Bosnia Herzegovinais 8.52 value of Price BasketforInternet and lowest value isfound as 1.54 of Households with Television. According to those values, Bosnia Herzegovina’s Price Basket for Internet exhibits a good value but Households with Television indicatorremains very low performance.In terms of the extent of Business Internet Users per 1000 People indicator Bosnia Herzegovina shows a medium level performance and remaining indicators remain atlow performance levels. W hen Turkey’s situation is considered it has satisfactory performance in terms of Availability of eGovernment Services, butin terms of Main Telephone Lines per 1000 People, Mobile Phones per 1,000 People, International Internet Bandwidth, Price Basket for Internet and Extent of Business Internet Use usually it remains at medium level performance levels. In terms of Total Telephones per 1,000 People, Computers per 1,000 People, Households with Television and Internet Users per 1000 People Turkey generates a low-medium performance. W hen the ICT variable values of Turkey and Bosnia Herzegovina are compared Bosnia Herzegovina’s Internet Users per 1000 People and Price Basketfor Internetratios are found higherthan Turkey and in terms of remaining rates Turkey has a better position than Bosnia Herzegovina. As a result,ICT variableindicators when investigated by Custom Scorecards Model, Turkey isfound creating more effortsthan Bosnia Herzegovina in the way of providing a information society. 1 http://go.worldbank.org/98RUI W A510, 02.05.2009. 269 �1st International Syposium on Sustainable Development, June 9-10 2009, Sarajevo Total Telephones per 1,000 People Extent of Business Internet Use Main Telephone Lines per 1000 People Availability of e1,000 People Mobile Phones per Price Basket for Internet (US$ month) Government Ser. Computers per 1,000 People Internet Users per 1000 People Households with Television (%) International Internet Bandwidth (bits per person Figure 1: Spider Charts Form of Bosnia Herzegovina’s ICT Performance Investigations performed by Custom Scorecards model may be revealed by interferences of Spider charts. Center of Spider charts converted into standard form indicates to minimum value of 0,its peripheral section indicates to maximum 10. Therefore,if Spider charts are too wide and greatthat refers to region and country is meant having a good place. W hen we look at Figure 1 Spider Chart belonging to Bosnia Herzegovinaisfound having an irregular and narrow distribution. Except Internet Users per 1000 People and Price Basket for Internet,all other variables are found to be closerto the center ofthe chart. Especially, Households with Television (%) indicatoris very closer to the center of the chart. W hen evaluated generally, in terms of ICT Bosnia Herzegovina found spending inadequate effort. Total Telephones per 1,000 People Extent of Business Internet Use Main Telephone Lines per 1000 People Availability of eGovernment Services Mobile Phones per 1,000 People Price Basket for Internet (US$ per month) Computers per 1,000 People Internet Users per 1000 People Households with Television (%) International Internet Bandwidth (bits per person Figure 2: Spider chart of Turkey’s ICT Performance W hen we look at Figure 2 Turkey’s Spider Charts shows a regular and well organized distribution but not in a very wide form. Usually,location ofindicator variables on the chart are massed around 5 indicating medium level performance. Location of indicator values of Availability of e-Government Services being closer to the peripheral side of the chart reveals that Turkey is in a good position in that indication. When the chart is investigated as a whole Turkey’s ICT performance isfound at medium levels. W hen two countries are compared allindicators of Turkey excluding Price Basket for Internet (US$ per month) and Internet Users per 1000 People on the chart are found covering the shape of Bosnia Herzegovina. That circumstance refers to the factthatin Bosnia Herzegovina internet monthly access pocket price is cheaper and as a result users have widerinternet connection ratio. Highest variation among the indicators of Turkey and Bosnia Herzegovina is Availability of e-Government Services indicators. That refersthat Turkey in e-state services has a much better situation than Bosnia Herzegovina. As a result ofinvestigations completed in overall meaning Turkey’s performance is betterthan Bosnia Herzegovina. 270 �1st International Syposium on Sustainable Development, June 9-10 2009, Sarajevo Bosnia and Herzegovina Turkey Total Telephones per 1,000 People Extent of Business Internet Use Availability of ePer 1,000 People Price Basket for Int. (US$ per month) Internet Users per 1000 People Main Telephone Lines per 1000 People Mobile Phones Government Serv. Computers per 1,000 People Households with Television (%) International Internet Bandwidth (bits per person Figure 3: ICT Comparison of Turkey and Bosnia Herzegovina Spider Charts Conclusions In that study compiled to investigate the performances of Turkey and Bosnia Herzegovina according to ICT variables Custom Scorecards modelis applied and findings have been depicted down. According to Custom Scorecards model, value of ICT indicators of Bosnia Herzegovina are in the range of 1.54 and 8.52, Turkey’s values areinthe range of 4.07 and 7.93. Strongestindicator of Bosnia Herzegovina is found as Price Basket for Internet and its lowest ratio is found as Households with Television. When we investigate Turkey’s situation strongest indicator is found as Availability of e-Government Services and its weakestindicatorisfound as Internet Users per 1000 People. A mong the 10 indicator applied in the study in two indicator Bosnia Herzegovina (Price Basket for Internet (US$ per month and Internet Users per 1000 People) is found more successful with its performance Turkey in 7 indicator (Total Telephones per 1,000 People, Main Telephone Lines per 1000 People, Mobile Phones per 1,000 People, Computers per 1,000 People, Households with Television (%),International Internet Bandwidth and Availability of e-Government Services) found more successful than Bosnia Herzegovina. With regard to Extent of Business Internet Use indicator both countries areinthe same success level. In two indicators Bosnia Herzegovina showed more efficient performance that Turkey. First of them is Price Basket for Internet and the other is Internet Users per 1000 People indicator. From that point, monthly internet connection pocket price is lower in Bosnia Herzegovina and as a result of that, users in Bosnia use internet more frequently. Highest variation between Turkey and Bosnia Herzegovina is found at Availability of e-Government Servicesindicator. Thatreferstothe factthat Turkey has much better position that Bosnia Herzegovina in e-state services. As a result atthe end of the investigations held, Turkey in general meaning showed a better performance than Bosnia Herzegovina. But, both countries when evaluated independently their success level is not found satisfactory. Both countriesin orderto possess their desired location in the sophisticating global environment to promote their economic and social situations to more advanced levelsthey need to use ICT as a strategic device. References Ahmed, E. M. (2007). “ICT and Human Capital Intensities Impact on ASEAN5 Productivity” Uluslararası 6. Bilgi, Ekonomi ve Yönetim Kongresi Bildiriler Kitabı, Đstanbul, pp. 2254-2262. Arvanitis, S. and Loukis, E. N. (2009). “Information and Communication Technologies, Human Capital, Workplace Organization and Labour Productivity: A Comparative Study Based on Firm-Level Data for Greece and Switzerland”, Information Economics and Policy: 21, pp. 43–61. 271 �1st International Syposium on Sustainable Development, June 9-10 2009, Sarajevo Bayo-Moriones, A. Billon, M. and Lera-Lopez, F. (2008). “Skills, Technology and Organisational Innovation in Spanish Firms”, International Journal of Manpower Volume: 29 Issue: 2 pp. 122-145. Dewan, S. and Kenneth L. K. (2000), “Information Technology and Productivity: Evidence from Country-Level Data”, Management Science, Vol. 46, No. 4, Information Technology Industry. (Apr.), pp. 548-562. Dursun, G. V. and Vardareri, A. D. (2007). “Bilgi ve Đletişim Teknolojilerinin Đşgücü Verimliliği Üzerindeki Etkisi: Türkiye Analizi (1980-2004)”, Uluslararası 6. Bilgi, Ekonomi ve Yönetim Kongresi Bildiriler Kitabı, Đstanbul, pp. 76-95. Ekinci, H. (2006). “Bilgi Teknolojilerinin Rekabet Açısından Önemi ve Değişim Yönetimindeki Etkilerine Đlişkin Yöneticilerin Algılarını Ölçmeye Yönelik Bir Araştırma”, Kocaeli Üniversitesi Sosyal Bilimler Enstitüsü Dergisi (11) / 1, pp. 54-70. http://go.worldbank.org/CY9PINAVF0, 20.04.2009 http://www.dtm.gov.tr/dtmadmin/upload/ANL/AvrupaDb/Bosna_Hersek.pdf, 28.04.2009. ITU (2009). Measuring the Information Society, the ICT Development Index, CH-1211 Geneva Switzerland. Jorgenson, D. W. and Stiroh, K. J. (2000). “Raising the Speed Limit: US Economic Growth in the Information Age”, OECD Economics Department Working Papers, No: 261, OECD, Paris. Lee, S. Y. T., Gholami, R. and Tong,T. Y. (2005). “Time Series Analysis in the Assessment of ICT Impact at the Aggregate Level-Lessons and Implications for the New Economy”, Information & Management, 42, pp. 1009–1022. Martinez, D., Rodriguez, J. and Torres, J. L. (2008). “The Productivity Paradox nd The New Economy: The Spanish Case”, Journal of Macroeconomıcs, Volume: 30, Issue: 4, pp. 1569-1586. Matteucci, N., O’Mahoney, M., Robinson, C., and Zwick, T. (2005). “Productivity,Workplace Performance and ICT: Evidence for Europe and the US”, The Scottish Journal of Political Economy, 52(3), pp. 359-86. Nelson, M. R. (2006). “Let the Internet Be the Internet”, Issues in Science and Technology, Spring, pp. 36-40. O’Mahony, M. and Vecchi, M. (2005), “Quantifying the Impact of ICT Capital on Output Growth: A Heterogeneous Dynamic Panel Approach”, Economica, 72, pp.615–633. Oliner, S. D. and Sichel, D. E. (2000), “The Resurgence of Growth in the Late 1990s: Is Information Technology the Story”, Journal of Economic Perspectives, 14, pp. 3-22. Ozcivelek, R. and Zontul, H. (2004). “Insights into the ICT Industry in Turkey”, European Commission Joint Research Centre (DG JRC), Techncial Report EUR 21392 EN, Spain. Pilat, D. and F. C. Lee (2001), “Productivity Growth in ICT-Producing and ICT-Using Industries: A Source of Growth Differentials in the OECD?”, OECD STI Working Papers, Sayı:4, OECD, Paris. Ramlan, J., Ahmed, E. M. and Leo Pointon (2007), “ICT, Human Capital and TFP in Malaysia: A Statistical Approach”, The Journal of Knowledge Economy & Knowledge Management, Volume II Fall, pp.1-17. Saygılı, Ş. Bilgi Ekonomisine Geçiş Sürecinde Türkiye Ekonomisinin Dünyadaki Konumu, Ankara, DPT Yayınları, Temmuz 2003. Scarpetta, S., Bassanini, A., Pilat, D. and Schreyer, P. (2000), “Economic Growth in the OECD Area: Recent Trends at the Aggregate and Sectoral Level”, OECD Economics Department Working Papers, No: 248, OECD, Paris. Türkoğlu, Y. (2009). ICT Sector in Turkey, IGEME, Export Promotion Center of Turkey. Verme, P. and Toksoy, B. (2005). “Report on Forecasting the Demand for Skills and Occupations in the ICT Sector in Turkey of Project, Contract TR /0205.01/001” The European Union’s Pre-accession Financial Assistance Programme for Turkey, Hifab International. Yamak, R. & Kolçak, N. A. (2007). “Bilgi Teknolojisi Harcamalarının Ekonomik Büyüme Üzerine Etkileri: 1993–2005”, Journal of Knowledge Economy & Knowledge Management, Volume: II, Spring, pp. 1-10. Yücel, Đ. H. (2006). Türkiye’de Bilim Teknoloji Politikaları ve Đktisadi Gelişmenin Yönü, DPT: Yayın No. 2690, Ankara. 272 � Dublin Core The Dublin Core metadata element set is common to all Omeka records, including items, files, and collections. For more information see, http://dublincore.org/documents/dces/. Extent The size or duration of the resource. 479 Title A name given to the resource Comparative Analysis Of Ict Performances Of Turkey And Bosnia And Herzegovina By Custom Scorecard Model Author Author Kaynak, Selahattin Özer, Hüseyin Abstract A summary of the resource. Information and Communication Technologies (ICT), being commonly used in all the sectors of an economy and one of the most important driving forces for social development in the last 20 years, facilitated to product goods and service for producers. Besides that, ICT has been begun to substitute other production factors, by reason of being cheaper of communication tools such as computer or internet and the changes observed in these tools. As it is looked consumers' perspective, falls of the prices and the high performance in these technologies reasoned in being used of them in every moment of daily life. The main purpose of this study is to compare the ICT performances of Turkey and Bosnia Herzegovina, based on the data set of the World Bank. KA M'S Custom Scorecards model developed by the World Bank has been used in the study. As a result of the analyses, it has been found that Turkey has delivered a better performance in general than Bosnia Herzegovina has done, except for the variables of Internet Users and Price Basket for Internet. Date A point or period of time associated with an event in the lifecycle of the resource 2009-06 Keywords Keywords. Conference or Workshop Item PeerReviewed Q Science (General) https://omeka.ibu.edu.ba/files/original/1e77e2888b1af34ce1b04e8c6c8b1578.pdf 3102207937ea6ff2b0c16d894cdecc49 Dublin Core The Dublin Core metadata element set is common to all Omeka records, including items, files, and collections. For more information see, http://dublincore.org/documents/dces/. Title A name given to the resource IT Master's Theses Description An account of the resource IT Master's Thesis collection features master's theses authored by graduate students in the Department of Information Technology. Each thesis reflects a significant research effort, combining theoretical knowledge with practical application to address complex challenges in the IT domain. These works demonstrate students’ advanced understanding of information systems, software engineering, data science, cybersecurity, and emerging technologies. The theses serve as a testament to the students' capability to conduct independent research, propose innovative solutions, and contribute to the advancement of the IT field. Subject The topic of the resource IT Master's Thesis Language A language of the resource English Language Author Author IT Department Master’s Students Dublin Core The Dublin Core metadata element set is common to all Omeka records, including items, files, and collections. For more information see, http://dublincore.org/documents/dces/. Title A name given to the resource Comparative Analysis of Machine Learning Algorithms for Real Estate Price Prediction: Bosnia and Herzegovina vs. USA Author Author Adnan Krndžija Abstract A summary of the resource. Real estate markets are impacted by a variety of variables, including changes in the population, urban development projects, and changes in economic policy. This thesis sets out to investigate the effectiveness of machine learning algorithms in predicting real estate prices, paying close attention to the particular circumstances of Bosnia and Herzegovina as well as the United States. While the US real estate market has a long history and is well-known for its capacity to bounce back from downturns in the economy, the tale of the BiH real estate industry is very different. In contrast to the United States, which has seen centuries of economic expansion, financial crises, and legislative changes, Bosnia and Herzegovina's market development is a result of a combination of past influences and present difficulties. Beyond simple quantitative comparisons, our research takes a holistic method to uncover the predictive capability of machine learning models.<br /><br />We explore the complexities of random forests and decision trees, making use of their ability to reveal intricate patterns in real estate databases. This research also includes time series modeling to recognize and comprehend the evolving patterns that characterize real estate dynamics throughout time. The analysis of SARIMAX, ARIMA, and Holt-Winters time-series models shows ARIMA's consistent accuracy, while SARIMAX and Holt-Winters excel in stability and trend capture, respectively. In machine learning, Decision Trees offer interpretability, while Random Forests show reduced error rates and enhanced accuracy. In the US dataset, SARIMAX has a Mean Absolute Percentage Error (MAPE) of 3.35% and ARIMA achieves 1.66%, while Holt-Winters shows 3.54%. Decision Trees have a MAPE of 2.97%, and Random Forests achieve 2.10%. In the BiH dataset, SARIMAX has a MAPE of 5.08%, ARIMA achieves 1.22%, while Holt-Winters shows 2.17%. Decision Trees have a MAPE of 0.83%, and Random Forests achieve 0.82%. Keywords Keywords. Real Estate, Prediction, Bosnia and Herzegovina, United States Bosnia and Herzegovina master's thesis prediction Real Estate United States https://omeka.ibu.edu.ba/files/original/68c96f82f8ba803339ec72dd63baf936.pdf 6fa2f68855c8e4c3b909bb51b5d1c1ca PDF Text Text ���    ���������‐ ���������������� Dublin Core The Dublin Core metadata element set is common to all Omeka records, including items, files, and collections. For more information see, http://dublincore.org/documents/dces/. Extent The size or duration of the resource. 3007 Title A name given to the resource Comparative Analysis of the Legal Remedies in Criminal Proceedings in Bosnia and Herzegovina, United States of America, United Kingdom, Republic of Croatia and Scotland Author Author Muharemović Orić, Nejra Abstract A summary of the resource. The right to a remedy and remedies are of fundamental importance for any society. This paper examines selected issues relating to remedies in comparative criminal law: evolution, definition, types and specifics of the remedies in certain legal systems, in particular accentuating the distinction between the common law and civil law jurisdictions, keeping in mind that even a perfect procedure can not guarantee perfect results. Publisher An entity responsible for making the resource available International Burch University Date A point or period of time associated with an event in the lifecycle of the resource 2015-12-28 Keywords Keywords. Article PeerReviewed Identifier An unambiguous reference to the resource within a given context ISSN 2303-5706 K Law (General) https://omeka.ibu.edu.ba/files/original/cad4ce21c2a75abd71487dec9d7f81eb.pdf 4049cea089a5f24b667c9d8d729cf51a Dublin Core The Dublin Core metadata element set is common to all Omeka records, including items, files, and collections. For more information see, http://dublincore.org/documents/dces/. Title A name given to the resource IT Senior Design Projects Description An account of the resource The IT Senior Design Projects (SDPs) category showcases innovative and practical final-year capstone projects developed by undergraduate and graduate students in the field of Information Technology. These projects represent the culmination of students' academic and technical expertise, demonstrating their ability to solve real-world problems through software and hardware solutions. Dublin Core The Dublin Core metadata element set is common to all Omeka records, including items, files, and collections. For more information see, http://dublincore.org/documents/dces/. Title A name given to the resource COMPARATIVE ANALYSIS OF WEB TESTING FRAMEWORKS: EVALUATING FUNCTIONAL, SECURITY, AND PERFORMANCE ASPECTS ACROSS HEALTHCARE SYSTEMS Author Author Aldijana Čulezović Abstract A summary of the resource. The objective of this project is to examine the scope and effectiveness of selected software testing tools on healthcare systems. The primary objective is to determine how modern testing frameworks perform when applied to healthcare web applications, a sector where security, reliability, and performance are critical. Different frameworks in different categories of functional, security and performance were used to conduct research on 3 different systems that ultimately do the same thing, but in different geographical locations. The main focus was on the system's capacity to manage common user interactions, withstand security threats, and function under different load levels. Functional tests were used to evaluate user workflows, such as form submission and navigation; security testing was done to find vulnerabilities like cross-site scripting, insecure data transmission, and out-of-date security protocols; and performance testing assessed the websites responsiveness and capacity to support multiple users at once while experiencing high traffic. In conclusion, this topic emphasizes the importance of comprehensive and detailed testing in the healthcare domain, especially in areas where performance and security are of vital importance. Outcome provides insight into standards and protocols that nearby countries use, as well as conclusions about multiple frameworks in different domains. Keywords Keywords. healthcare, functional testing, security testing, performance testing healthcare sdp testing Dublin Core The Dublin Core metadata element set is common to all Omeka records, including items, files, and collections. For more information see, http://dublincore.org/documents/dces/. Extent The size or duration of the resource. 3404 Title A name given to the resource COMPARATIVE COLLOCATIONAL COMPETENCE AS AN ESP SKILL Author Author Pleše, Dubravka Bogdanović, Vesna Abstract A summary of the resource. Learning a language always means learning not only grammar and vocabulary but specific terms and phrases as well, characteristic for the target language and very different from the mother tongue of the learner. This is even more true of the language taught at the tertiary educational level, i.e. language for specific purposes or professional foreign language. Even though learning phraseology and new vocabulary is difficult enough in itself, collocations usually represent an even greater problem since the words that appear together (i.e. collocate) have completely different meanings than they do when they appear by themselves. The major problem areas appear to be teaching, learning and translating special words as examples of lexical units. The aim of this paper is to investigate the importance of collocations, contexts and probable situations in the creation and usage of collocations. Our particular field of interest were collocations found in texts dealing with petroleum engineering and traffic engineering. The emphasis of the paper was on comparative collocational competence in Croatian, Serbian and English. Efforts were made to show how the core meaning expressed in one language is communicated in another and how this non-specific meaning becomes more specific in three different languages. The diversities between the three languages were also to be analyzed. Apart from the theoretical linguistic approach, we also wanted to point out the importance of extra linguistic context, which is crucial in shaping the actual shades of meaning. We also endeavored to explain the complex relationship between lexical elements that combine to form collocations used in highly specific, scientific fields, in this case, in mining, geology, petroleum engineering, transport and traffic engineering. Date A point or period of time associated with an event in the lifecycle of the resource 2014 Keywords Keywords. Conference or Workshop Item PeerReviewed PE English https://omeka.ibu.edu.ba/files/original/7c61b92ac1b06ed99124ae34008878d4.pdf 35ac215cd0f38442a04d448ec2e15604 PDF Text Text 1st International Syposium on Sustainable Development, June 9-10 2009, Sarajevo Comparing Functional Programming and Object Oriented Programming Languages on the Server Side Programming Özgür Örnek International Burch University Sarajevo, Bosnia and Herzegovina oornek@ibu.edu.ba Abstract : The use of web applications has been rapidly expanded into all sectors of society such as government, business, education, and industry. Web applications have to be thorough tested to ensure their correctness and meet the software requirements. Today, there are many different methods available to develop dynamic web applications but all these methods have some advantages and some disadvantages. It is very difficult to decide which solution should be chosen for a particular problem in a specific environment. Some dynamic script languages based on object oriented programming have been introduced such as JSP servlets and ASP.NET. Some of them based on functional programming languages such as ASP and PHP. In this paper, we adapt to specify advantages and disadvantages of developing web application with object oriented programming and functional programming languages . To achieve this aim, we picked up JSP and servlet as object oriented programming language and PHP as a functional programming language. We implemented different stock programs in JSP and PHP programming languages in order to compare their performances. Keywords: JSP, Servlet, PHP, Server Side Programming 1. Introduction In the early years of the Internet, the web application was static. The web content that sent to the browser was entirely same. It was not possible to implement web-based business applications that require database connection, user authentication, session management, and dynamic Html generation. To eliminate web-based business applications demand, server side programming languages were developed as a dynamic web application. Over the years, numerous alternatives and enhancements, such as FastCGI, mod_perl from Apache, NSAPI from Netscape, ISAPI, ASP, ASP.NET from Microsoft, PHP, Coldfusion, and Java servlets,JSP from Sun Microsystems,have been created. Today, there are many different methods available to develop dynamic web applications but allthese methods have some advantages and disadvantages.Itis very difficultto decide which solution should be chosen for a particular problem in a specific environment. Some dynamic script languages based on object oriented programming have been introduced such as JSP servlets and ASP.NET. Some of them based on functional programming languages such as ASP and PHP. However, as much attention has been paid to the development of Web applications, there exist very few reports on Web application testing. In this paper, we endeavor to specify advantages and disadvantages of developing web application with object oriented programming and functional programming languages. Forthis purpose, we picked up JSP as object oriented programming language and PHP as a functional program ming language. We implemented same stock implementation in JSP and PHP programming languages in order to compare their performances. Similar studies have been handled by particularresearchers. Hendeson-Sellers(Henderson-Seller. 2000) concluded that in object oriented programming languages are more successful in complex application development. Roberts (Roberts, Gary. 2005) analyzed server side programming languages such as PHP, ASP, ASP.NET, and ColdFusion with advantages and disadvantages. Based on his study, preferring suitable server sidetechnology depends on operating system, economy, ease of using, and sustainability.Yang et al.(Yang et al. 2002) expanded traditional software testing architecture to support Web Application setting. A set of tool was developed to help analyze documents, develop test cases, execute tests, monitor failures, and support test measurement. Ricca and Tonella (Ricca and Tonella. 2002) described an analysis model that captures web pages, forms, frames, and theirrelationship of Web applications. Masaud et al.(Masaud et al.2006) compared JSP and ASP.NET framework in MVC implementation. Their findings showed thatimplementing the ASP.Netframework was easierthan JSP framework to achieve the 353 �1st International Syposium on Sustainable Development, June 9-10 2009, Sarajevo M V C major concept. Suzumura et al.(Suzumura et al. 2008) conducted performance comparison of web service engines in PHP, Java, and C. 2. Web Application Architecture A typical web application consists of a web server, an application server and a database server. Figure 2.1 illustrates web application architecture. Figure 2.1: Web application architecture The typical flow of handling a request starts with the browser issuing are quest for a specific resource. The web server picks up this request off of port 80 and determines thatthe application server should handle the request. The application server receives the request and executes some code to handle the request. Within the code, the database may be called by making a connection to whatever port to which the database server is listening. Once a response has been assembled, it's sent back to the browser from where it originated. (Patzer. 2002) 3. Developig Java Web Applications Server-side Java programming model is based on two recent Java server-side technologies: Servlets, Java Server Pages (JSPs). Servlets (and JSP) offers the following benefits that are not necessarily available in othertechnologies: Performance: The performance of servletsissuperiorto CGI becausethereis no process creation for each client request.Instead, each request is handled by the servlet container process. After a servletis finished processing a request,itstays residentin memory, waiting for another request. Portability: Similar to other Java technologies, servlet applications are portable. You can move them to other operating systems without serious hassles. Rapid development cycle: As a Java technology, servlets have accesstothe rich Java library, which helps speed up the development process. Robustness: Servlets are managed by the Java Virtual Machine. As such, you don’t need to worry about memory leak or garbage collection, which helps you write robust applications. Widespread acceptance: Java is a widely accepted technology. This means that numerous vendors work on 354 �1st International Syposium on Sustainable Development, June 9-10 2009, Sarajevo Java-based technologies. One of the advantages of this widespread acceptance is that you can easily find and purchase componentsthat suit your needs, which saves precious development time. 3.1. Java Servlets Servlets are nothing more than Java classesthat provide specialserver side service. This service defines a set oflifecycle methods thatcan be overridden to provide dynamic responses to HTTP requests. The web container can load and manage multiple servlets withinthe same Java Virtual Machine (JV M). Once a servletisloaded,it handles each incoming request by spawning a new lightweight thread to perform its task. This enables the application serverto service a great number of requests without significant degradation of performance.Itisillustrated at Figure 3.1.(Chunlin. ?) Figure 3.1: Servlet working architecture 3.2. Java Server Pages (JSP) Java Server Pages (JSP) technology enables to mix regular, static HT ML with dynamically generated content from servlets. With JSP, web designers and developers can quickly incorporate dynamic elements into web pages using embedded Java and a few simple markup tags. These tags provide the HT ML designer with a way to access data and business logic stored inside Java objects without having to master the complexities of Java application development. JSP files contain traditional HT ML along with embedded code that allows the page designer to access datafrom Java code running on the server. When the page isrequested by a user and processed by the HyperText Transport Protocol (HTTP) server,the HT ML portion of the page is passed straightthrough. The code portions of the page, however, are executed atthe time the requestis received, and the dynamic content generated by this code isspliced intothe page beforeitissenttothe user. This provides for a separation ofthe HT ML presentation aspects of the page from the programming logic contained in the code. It is illustrated at Figure 3.2 (Visualbuilder.com Team 2001) 355 �1st International Syposium on Sustainable Development, June 9-10 2009, Sarajevo Figure 3.2: JSP Architecture 4. Developing PHP Web Applications The PHP language is widely used Open Source general-purpose scripting language that is especially suited for Web development and can be embedded into HT ML. A great number of open source software and company’s web sites use PHP sinceitcan enable high software productivity. PHP usage statisticsisillustrated in Figure 4.1 (http://www.php.net/usage.php) Figure 4.1: PHP usage for Jul 2007 356 �1st International Syposium on Sustainable Development, June 9-10 2009, Sarajevo PHP can be used on all major operating systems, including Linux, many Unix variants, Microsoft Windows, Mac OS X, RISC OS, and probably others. PHP has also support for most ofthe web servers today. This includes Apache, Microsoft Internet Information Server, Personal Web Server, Netscape and iPlanet servers,and many others. Forthe majority ofthe servers PHP has a module,forthe others supporting the CGI standard, PHP can work as a CGI processor. PHP has many strengths,including the following: Stability, and compatibility : It works well with other software and can be quite fast. PHP uses the machine resources very efficiently. Currently, PHP runs stable on a range of operating systems including most flavors of UNIX, Windows and Macs and integrates wellwith most popular serversincluding IIS and apache. One of the strongest and most significant features in PHP is its support for a wide range of databases. Writing a database-enabled web page is incredibly simple. Cost : PHP is free. PHP is a popular choice for companies hoping to avoid licensing costs. It’s also the most popular choice for small business web hosting providers who almost always provide PHP and MySQL support. MySQL isfrequently used by those small businesses,for example,to maintain a database containing a catalog of their merchandise. PHP allowsthose vendorsto calculate prices based on complex selection criteria(like product color,size,and style). PHP (free)isfrequently used in conjunction with Linux (a free operating system), MySQL (a free database), and Apache (a free web server) - allfree and collectively referred to as “LA MP”. Availability of Support : PHP is Open Source. Because PHP's source code is freely available, a community of developers is always working to improve, add to, and find bugs in the language. Open Source means you never need to rely on the manufacturer to release the next version if something doesn't work or pay for expensive upgrades. Simplicity with Built in Libraries : The syntax of PHP based on other programming languages, primarily C and Perl.It has many built-in functions for performing many useful web tasks. PHP can generate GIF images on the fly, connect to web services and other network services, parse X ML, send email, and generate PDF documents, all with just a few lines of code.(Welling, L. & Thomson L. 2005) 5. Experimental Results The goal ofthis benchmark isto demonstrate performance analyze of JSP and PHP technologies. Thus, we developed onlinetwo stock programs withtwo technologies separately. We used MySQL as database server, and Apache as web server. In orderto analyze web applications, virtualtesttools are used. To measure Web page performance and toteststability, we used Webserver Stress Tool. Withthistesttool, we can test with specifying number of virtual users and each user’s page requestinlimited duration. Testtool was configured to use 100 and 500 concurrent connectionsin particular duration.Forthe tests, we used PHP system, with a single 1.4 MHz Pentium M CPU and 256MB of RA M. 357 �1st International Syposium on Sustainable Development, June 9-10 2009, Sarajevo Request Time (ms) JSP-PHP Comparison(100 User) 400 350 300 250 200 150 100 50 0 php jsp 0 20 40 60 80 Number of Users 100 Figure 5.1: 100 users comparison in specified time First, we tested 100 users with increasing load for a specified time. From Figure 5.1, reasonably high performing compared to PHP. In the beginning, since the page loading such as compiling and interpreting takes much time, requesttime values are higher. After 50 user, PHP graph change big variation than JSP. As number of usersincrease, PHP requesttime increases, whereas JSP has less requesttime than PHP. We can say that JSP is more stable and fasterthan PHP. Request Time (ms) JSP-PHP Comparison (500 User) 300 250 200 php jsp 150 100 50 0 0 200 400 600 Number of Users Figure 5.2: 500 users comparison in specified time Second, we attempted to measure 500 usersloading for a specified time. From the results,itisseen that JSP request time smaller than PHP overall users. But, the request time results have little differences bettween JSP and PHP. JSP is more stable and fasterthan PHP. 6. Conclusion According to results of test; 358 �1st International Syposium on Sustainable Development, June 9-10 2009, Sarajevo a. In terms of performance, JSP technology isfaster and more stablethan PHP. b. In terms of simplicity, since PHP syntax is based on C and has builtin functions to generate complex issues,itcan be saidthat PHP is more easierthan JSP. However,JSP uses Java classes and X M L tags to generate codes. c. From the results, we conclude thatthe security approach gives better performance in JSP. d. Considering development time of a project, PHP technology is better solution for small and mid projects.In the complex projects JSP technology will perform betterthan PHP. 7. References Chunlin, L. (1999). A Java-based Method For Developing Web Application System. IEEE International Conferenece Henderson-Seller, B. & Unhelka. (2000). Open modeling UML. Boston: Addison Wesley. Masoud, F. A., Halabi, D. H. and Halabi D. H. (2006). ASP.NET and JSP Frameworks in Model View Controller Implementation, IEEE, Patzer, A. (2002). JSP Examples and Best Practices. NY:Apress. Roberts, G. (2005). Learning Server-Side Scripting, ProQuest Computing, pp. 37 Suzumura, T., Trent, S., Tatsubori, M., Tozawa, A. and Onodera, T. (2008). Performance Comparison of Web Service Engines in PHP, Java, and C, IEEE International Conference on Web Services, Tonella, P. and Ricca, F. (2002). Dynamic Model Extraction and Statiscal Analysis of Web Applications, in Proc of the 4th International Workshop on Web Site Evolution, pp. 43-52. Visualbuilder.com Team (2001), JSP Tutorial, http://www.visualbuilder.com Welling, L., Thomson, L. (2005), PHP and MySQL Development (pp.4-6). Indiana:Sams Yang, J.-T, Huang, J.-L, Wang, F.-J, and Chu, W.C. (2002). Constructing an Object- Oriented Architecture for Web Application Testing, Journal of Science and Engineering 18(1):59-84 359 � Dublin Core The Dublin Core metadata element set is common to all Omeka records, including items, files, and collections. For more information see, http://dublincore.org/documents/dces/. Extent The size or duration of the resource. 504 Title A name given to the resource Comparing Functional Programming and Object Oriented Programming Languages on the Server Side Programming Author Author Örnek, Özgür Abstract A summary of the resource. The use of web applications has been rapidly expanded into all sectors of society such as government, business, education, and industry. Web applications have to be thorough tested to ensure their correctness and meet the software requirements. Today, there are many different methods available to develop dynamic web applications but all these methods have some advantages and some disadvantages. It is very difficult to decide which solution should be chosen for a particular problem in a specific environment. Some dynamic script languages based on object oriented programming have been introduced such as JSP servlets and ASP.NET. Some of them based on functional programming languages such as ASP and PHP. In this paper, we adapt to specify advantages and disadvantages of developing web application with object oriented programming and functional programming languages . To achieve this aim, we picked up JSP and servlet as object oriented programming language and PHP as a functional programming language. We implemented different stock programs in JSP and PHP programming languages in order to compare their performances. Date A point or period of time associated with an event in the lifecycle of the resource 2009-06 Keywords Keywords. Conference or Workshop Item PeerReviewed Q Science (General) https://omeka.ibu.edu.ba/files/original/8bbbfa2647fe7199e867342582c4115a.pdf 19fc0a50315eee42be7d7cfae034c9d8 Dublin Core The Dublin Core metadata element set is common to all Omeka records, including items, files, and collections. For more information see, http://dublincore.org/documents/dces/. Title A name given to the resource IT Senior Design Projects Description An account of the resource The IT Senior Design Projects (SDPs) category showcases innovative and practical final-year capstone projects developed by undergraduate and graduate students in the field of Information Technology. These projects represent the culmination of students' academic and technical expertise, demonstrating their ability to solve real-world problems through software and hardware solutions. Dublin Core The Dublin Core metadata element set is common to all Omeka records, including items, files, and collections. For more information see, http://dublincore.org/documents/dces/. Title A name given to the resource Comparing Sentiment Analysis Emotion Classification Models for Psychotherapy Use Author Author Anja Šehovac Abstract A summary of the resource. Sentiment analysis could be a powerful tool in evolving psychotherapy. There is a rapid increase in patients seeking mental health help, and NLP could help make their experience more accessible and efficient. A sentiment analysis-based journal could help users track their thought patterns, their severity, and progress over time. This paper investigates the effectiveness of Naive Bayes, Random Forest, Support Vector Machine, XGBoost and BERT algorithms paired with TF-IDF, Bag of Words, One-Hot Encoding and Word2Vec feature extraction algorithms in emotion classification of text for future journal use. Comparative analysis helps understand which algorithms could be best suited for this type of multi-label classification, and broadens current research by testing several algorithms, which can show what should be further worked upon in the field, and which algorithms are best to avoid. Many studies test only one or two algorithms, leaving less room for comparison on the same dataset and under the same conditions, so it is unclear if the accuracy differences in different studies are derived from a better model or a better dataset. Furthermore, other studies do not provide a comparative analysis of feature extraction models. The four machine learning algorithms were trained on a dataset of 17.449 emotion-annotated sentences after preprocessing steps including tokenization, lemmatization, and vectorization for feature extraction. Out of classical models, Naive Bayes performed the worst with a 76% accuracy, and XGBoost performed the best with a 0.88 accuracy. Furthermore, BERT accomplished 93% accuracy, making it the best performing model in the study. Each algorithm performed better with a different vectorization method. This shows improvement over other research in the field, and the potential of sentiment analysis in aiding psychotherapy needs. Keywords Keywords. Random Forest, Support Vector Machine, XGBoost, Naıve Bayes, BERT, sentiment analysis, psychotherapy, journal, emotion classification, TF-IDF, Bag of Words, One-Hot Encoding. Word2Vec Language A language of the resource English language classification models data science emotions sentiment analysis https://omeka.ibu.edu.ba/files/original/17debc76aeb355c9e270bb3e41ac308c.docx 30f2d0e2ff99b8043a1a8d93642c9a3a https://omeka.ibu.edu.ba/files/original/e03af34fa40b912175f400dfc6a85ce0.pdf 93239b1ed180d90ad79ccfe6b1f036d7 PDF Text Text Comparing the Financial Performances of Different Trading Strategies Using BIST100 Index Mehmet Özçalici Kilis 7 Aralik University Turkey mozcalici@gmail.com H. Mustafa Paksoy Kilis 7 Aralik University Turkey hmpaksoy@yahoo.com Sadettin Paksoy Kilis 7 Aralik University Turkey spaksoy@kilis.edu.tr Abstract: In an efficient market, prices of stocks reflect all relevant information. Efficient Market Hypothesis states that it is impossible to find overvalued or undervalued stocks to obtain abnormal profits. In another words the best trading strategy is “buy and hold strategy”. If efficient market hypothesis is true and if BIST is an efficient market then it won’t be possible to obtain abnormal profits by trading with technical analysis rules. In this study three different models are created to compare the profitability of trading rules. First model includes trading rules which are based on moving averages. The second model is buy and hold model. In this model stocks are bought from first day and sold at the end of the test period and return is calculated from that transaction. In the third model random forecasts are used as buy and sell signs. The profits obtained from transactions which are directed by the result of these three models are calculated and compared. Dataset consists from closing prices of BIST100 index between the period 30/11/2011 and 01/07/2013. The period is divided to 10 sequential subperiods. Overall results indicate that trading rules produced greater return when compared with random forecasts and buy and hold strategy. Keywords: Technical analysis, efficient market hypothesis, random walk model, BIST 100 index, trading algorithm. 109 �109 � Dublin Core The Dublin Core metadata element set is common to all Omeka records, including items, files, and collections. For more information see, http://dublincore.org/documents/dces/. Extent The size or duration of the resource. 2554 Title A name given to the resource Comparing the Financial Performances of Different Trading Strategies Using BIST100 Index Author Author OZCALICI, Mehmet PAKSOY, Mustafa H. PAKSOY, Sadettin Abstract A summary of the resource. In an efficient market, prices of stocks reflect all relevant information. Efficient Market Hypothesis states that it is impossible to find overvalued or undervalued stocks to obtain abnormal profits. In another words the best trading strategy is “buy and hold strategy”. If efficient market hypothesis is true and if BIST is an efficient market then it won’t be possible to obtain abnormal profits by trading with technical analysis rules. In this study three different models are created to compare the profitability of trading rules. First model includes trading rules which are based on moving averages. The second model is buy and hold model. In this model stocks are bought from first day and sold at the end of the test period and return is calculated from that transaction. In the third model random forecasts are used as buy and sell signs. The profits obtained from transactions which are directed by the result of these three models are calculated and compared. Dataset consists from closing prices of BIST100 index between the period 30/11/2011 and 01/07/2013. The period is divided to 10 sequential sub-periods. Overall results indicate that trading rules produced greater return when compared with random forecasts and buy and hold strategy. Keywords: Technical analysis, efficient market hypothesis, random walk model, BIST 100 index, trading algorithm. Publisher An entity responsible for making the resource available International Burch University Date A point or period of time associated with an event in the lifecycle of the resource 2014-04 Keywords Keywords. Article PeerReviewed Identifier An unambiguous reference to the resource within a given context ISSN 2303-4564 H Social Sciences (General) https://omeka.ibu.edu.ba/files/original/50b55ab8496a67d63054761aee53f928.pdf 9a0bc79fc3b7717861505f25278d0fc3 PDF Text Text International Conference on Economic and Social Studies, 10-11 May, 2013, Sarajevo Comparison between Industrial Policy of Turkey and Bulgaria İmren Alakuş Dokuz Eylül University, Turkey sandcastle_1989@hotmail.com Paper will make a comparison between Turkey’s industrial policy and Bulgaria’s industrial policy in terms of meeting European Union (EU)’s criteria. The topic is very significant because countries’ level of development depend on their industrial policies. This is why EU gives more importance to this sector and candidate countries have to meet chapter on industrial policy for becoming full membership. The paper will focus on improvement of two countries’ industrial policies year over year for being of a member of EU. Keywords: Industrial Policy, Turkey, EU, Bulgaria. 170 � Dublin Core The Dublin Core metadata element set is common to all Omeka records, including items, files, and collections. For more information see, http://dublincore.org/documents/dces/. Extent The size or duration of the resource. 1591 Title A name given to the resource Comparison between Industrial Policy of Turkey and Bulgaria Author Author ALAKUS, Imren Abstract A summary of the resource. Paper will make a comparison between Turkey’s industrial policy and Bulgaria’s industrial policy in terms of meeting European Union (EU)’s criteria. The topic is very significant because countries’ level of development depend on their industrial policies. This is why EU gives more importance to this sector and candidate countries have to meet chapter on industrial policy for becoming full membership. The paper will focus on improvement of two countries’ industrial policies year over year for being of a member of EU. Keywords: Industrial Policy, Turkey, EU, Bulgaria. Publisher An entity responsible for making the resource available International Burch University Date A point or period of time associated with an event in the lifecycle of the resource 2013-05-10 Keywords Keywords. Article PeerReviewed Identifier An unambiguous reference to the resource within a given context ISSN 2303-4564