Research
Article |
| Seyedkazemi, Seyedpayam and Gursoy, M. Emre and Saygın, Yücel, (2024) “LuxTrack: activity inference attacks via smartphone ambient light sensors and countermeasures”, IEEE Internet of Things Journal, Vol.11, No.17, 28734-28751 (SCI) |
| Aytekin, Mehmet Cem and Saygın, Yücel, (2024) “Discovering prerequisite relations using large language models”. Published Online First https://dx.doi.org/10.1080/10494820.2024.2375338 Interactive Learning Environments (SSCI) |
| Gul, Saima and Rabiger, Stefan and Saygın, Yücel, (2022) “Context-based extraction of concepts from unstructured textual documents”, Information Sciences, Vol.588, 248-264 (SCI) |
| Gezici, Gizem and Lipani, Aldo and Saygın, Yücel and Yılmaz, Emine, (2021) “Evaluation metrics for measuring bias in search engine results”, Information Retrieval Journal, Vol.24, No.2, 85-113 (SCI, SSCI) |
| Kaplan, Emre and Gürsoy, Mehmet Emre and Nergiz, Mehmet Ercan and Saygın, Yücel, (2020) “Known sample attacks on relation preserving data transformations”, IEEE Transactions on Dependable and Secure Computing, Vol.17, No.2, 443-450 (SCI) |
| İnan, Ali and Gürsoy, Mehmet Emre and Saygın, Yücel, (2020) “Sensitivity analysis for non-interactive differential privacy: bounds and efficient algorithms”, IEEE Transactions on Dependable and Secure Computing, Vol.17, No.1, 194-207 (SCI) |
| Hatipoğlu, Emre and Gökçe, Osman Zeki and Arın, İnanç and Saygın, Yücel, (2019) “Automated text analysis and international relations: the introduction and application of a novel technique for Twitter”, All Azimuth: A Journal of Foreign Policy and Peace, Vol.8, No.2, 183-204 (ESCI) |
| Göğüş, Aytaç and Saygın, Yücel, (2019) “Privacy perception and information technology utilization of high school students”, Heliyon, Vol.5, No.5 (SCI) |
| Amro, Belal Mohammed and Levi, Albert and Saygın, Yücel, (2019) “Flexible fair and collusion resistant pseudonym providing system”, The International Arab Journal of Information Technology, Vol.16, No.1, 80-87 (SCI) |
| Rabiger, Stefan and Spiliopoulou, Myra and Saygın, Yücel, (2018) “How do annotators label short texts? toward understanding the temporal dynamics of tweet labeling”, Information Sciences, Vol.457, 29-47 (SCI, SSCI) |
| Arın, İnanç and Erpam, Mert Kemal and Saygın, Yücel, (2018) “I-TWEC: interactive clustering tool for Twitter”, Expert Systems with Applications, Vol.96, 1-13 (SCI) |
| Kaplan, Emre and Gürsoy, Mehmet Emre and Nergiz, Mehmet Ercan and Saygın, Yücel, (2018) “Location disclosure risks of releasing trajectory distances”, Data and Knowledge Engineering, Vol.113, 43-63 (SCI) |
| Kazmi, Mishal and Schüller, Peter and Saygın, Yücel, (2017) “Improving scalability of inductive logic programming via pruning and best-effort optimisation”, Expert Systems with Applications, Vol.87, 291-303 (SCI) |
| Gürsoy, Mehmet Emre and İnan, Ali and Nergiz, Mehmet Ercan and Saygın, Yücel, (2017) “Differentially private nearest neighbor classification”, Data Mining and Knowledge Discovery (SI), Vol.31, No.5, 1544-1575 (CPCI-S, SCI) |
| İnan, Ali and Nergiz, Mehmet Ercan and Saygın, Yücel, (2017) “Öğrenci verilerinin korunması: Fatih projesi ışığında teknik değerlendirme”, Bilişim Teknolojileri Dergisi, Vol.10, No.1, 67-77 |
| Özalp, İsmet and Gürsoy, Mehmet Emre and Nergiz, Mehmet Ercan and Saygın, Yücel, (2016) “Privacy-preserving publishing of hierarchical data”, ACM Transactions on Privacy and Security, Vol.19, No.3 (SCI) |
| Dehkharghani, Rahim and Yanıkoğlu, Berrin and Saygın, Yücel and Oflazer, Kemal, (2016) “Sentiment analysis in Turkish at different granularity levels”. Published Online First http://dx.doi.org/10.1017/S1351324916000309 Natural Language Engineering (SCI) |
| Dehkharghani, Rahim and Saygın, Yücel and Yanıkoğlu, Berrin and Oflazer, Kemal, (2016) “SentiTurkNet: A Turkish polarity lexicon for sentiment analysis”, Language Resources and Evaluation, Vol.50, No.3, 667-685 (SCI) |
| Hatipoğlu, Emre and Gökçe, Osman Zeki and Dinçer, Berkay and Saygın, Yücel, (2016) “Sosyal medya ve Türk dış politikası: Kobani tweetleri üzerinden Türk dış politikası algısı (Social media and Turkish foreign policy: Turkish foregin policy perceptions through Kobane tweets)”, Uluslararasi İlişkiler Dergisi, Vol.13, No.52, 175-197 (SSCI) |
| Gökçe, Osman Zeki and Hatipoğlu, Emre and Göktürk, Gökhan and Luetgert, Brooke and Saygın, Yücel, (2014) “Twitter and politics: identifying Turkish opinion leaders in new social media”, Turkish Studies, Vol.15, No.4, 671-688 (SSCI) |
| Dehkharghani, Rahim and Mercan, Hanefi and Javeed, Arsalan and Saygın, Yücel, (2014) “Sentimental causal rule discovery from twitter”, Expert Systems with Applications, Vol.41, No.10, 4950-4958 (SCI) |
| Amro, Belal Mohammed and Saygın, Yücel and Levi, Albert, (2013) “Enhancing privacy in collaborative traffic-monitoring systems using autonomous location update”, IET Intelligent Transport Systems, Vol.7, No.4, 388-395 (SCI) |
| Çaycı, Ayşegül and Menasalvas, Ernestina and Saygın, Yücel and Eibe, Santiago, (2013) “Self-configuring data mining for ubiquitous computing”, Information Sciences, Vol.246, 83-99 (SCI) |
| Abdalaal, Ahmed and Nergiz, Mehmet Ercan and Saygın, Yücel, (2013) “Privacy preserving publishing of opinion polls”, Computers and Security, Vol.37, 143-154 (SCI) |
| Nergiz, Mehmet Ercan and Çiçek, Abdullah Ercüment and Pedersen, Thomas B. and Saygın, Yücel, (2012) “A look-ahead approach to secure multiparty protocols”, IEEE Transactions On Knowledge and Data Engineering, Vol.24, No.7, 1170-1185 (SCI) |
| Tamersoy, Acar and Loukides, Grigorios and Nergiz, Mehmet Ercan and Saygın, Yücel and Malin, Bradley, (2012) “Anonymization of longitudinal electronic medical records”, IEEE Transactions on Information Technology in Biomedicine, Vol.16, No.3, 413-423 (SCI) |
| Çobanoğlu, Murat Can and Saygın, Yücel and Sezerman, Uğur, (2011) “Classification of GPCRs using family specific motifs”, IEEE/ACM Transactions on Computational Biology and Bioinformatics, Vol.8, No.6, 1495-1508 (SCI) |
| Nergiz, Mehmet and Tamersoy, Acar and Saygın, Yücel, (2011) “Instant anonymization”, ACM Transactions on Database Systems, Vol.36, No.1 (SCI) |
| Yıldızlı, Can and Pedersen, Thomas Brochmann and Saygın, Yücel and Savaş, Erkay and Levi, Albert, (2011) “Distributed privacy preserving clustering via homomorphic secret sharing and its application to (vertically) partitioned spatio-temporal data”, International Journal of Data Warehousing and Mining, Vol.7, No.1, 46-66 (SCI) |
| Kaplan, Emre and Pedersen, Thomas Brochmann and Savaş, Erkay and Saygın, Yücel, (2010) “Discovering private trajectories using background information”, Data and Knowledge Engineering (Sp. Iss. SI), Vol.69, No.7, 723-736 (SCI) |
| Hintoğlu, Ayça Azgın and Saygın, Yücel, (2010) “Suppressing microdata to prevent classification based inference”, VLDB Journal, Vol.19, No.3, 385-410 (SCI) |
| Domingo-Ferrer, Josep and Saygın, Yücel, (2009) “Recent progress in database privacy”, Data and Knowledge Engineering, Vol.68, No.11, 1157-1159 (SCI) |
| Karlı, Sezin and Saygın, Yücel, (2009) “Mining periodic patterns in spatio-temporal sequences at different time granularities”, Intelligent Data Analysis, Vol.13, No.2, 301-335 (SCI) |
| Nergiz, Mehmet Ercan and Atzori, Maurizio and Güç, Barış and Saygın, Yücel, (2009) “Towards trajectory anonymization: a generalization-based approach”, Transactions on Data Privacy, Vol.2, No.1, 47-75 () |
| Kaplan, Emre and Pedersen, Thomas Brochmann and Savaş, Erkay and Saygın, Yücel, (2008) “Privacy risks in trajectory data publishing: reconstructing private trajectories from continuous properties”, Knowledge-Based Intelligent Information and Engineering Systems, Vol.5178, 642-649 (SCI) |
| Bonchi, Francesco and Malin, Bradley and Saygın, Yücel, (2008) “Recent advances in preserving privacy when mining data”, Data and Knowledge Engineering Journal, Vol.65, No.issue , 1-4 (SCI) |
| İnan, Ali and Kaya, Selim Volkan and Saygın, Yücel and Savaş, Erkay and Azgın Hintoğlu, Ayça and Levi, Albert, (2007) “Privacy preserving clustering on horizontally partitioned data”, Data & Knowledge Engineering, Vol.63, No.3, 646-666 (SCI) |
| Yardımcı, Galip Gürkan and Küçükural, Alper and Saygın, Yücel and Sezerman, Uğur, (2006) “Modified association rule mining approach for the MHC-peptide binding problem”, Lecture Notes in Computer Science, Vol.4263, 165-173 (SCI) |
| İnan, Ali and Saygın, Yücel, (2006) “Privacy preserving spatio-temporal clustering on horizontally partitioned data”, Data warehousing and knowledge discovery (Lecture Notes in Computer Science), Vol.4081, 459-468 (SCI) |
| Ünal, Aykut and Saygın, Yücel and Ulusoy, Özgür, (2006) “Processing count queries over event streams at multiple time granularities”, Information sciences, Vol.176, No.14, 2066-2096 (SCI) |
| Şaykol, Ediz and Saygın, Yücel and Erçil, Aytül and Willis, Andrew and Cooper, David and Joukowski, Martha S., (2005) “A web service platform for web-accessible archaeological databases”, Lecture notes in computer science, Vol.3733, 362-370 (SCI) |
| Azgın Hintoğlu, Ayça and Saygın, Yücel and Benbernou, Salim and Hacid, Mohand Said, (2005) “Privacy preserving data mining services on the web”, Lecture notes in computer science, Vol.3592, 246-255 (SCI) |
| Azgın Hintoğlu, Ayça and Saygın, Yücel, (2005) “Suppressing microdata to prevent probabilistic classification based inference”, Lecture notes in computer science, Vol.3674, 155-169 (SCI) |
| Saygın, Yücel and Reisman, Arnold and Wang, Yungtong, (2004) “Value of information gained from data mining in the context of information sharing”, IEEE Transactions on Engineering Management, Vol.51, No.4, 441-450 (SCI) |
| Verykios, V. S. and Elmagarmid, A. K. and Bertino, E. and Saygın, Yücel and Dasseni, E., (2004) “Association rule hiding”, IEEE Transactions On Knowledge and Data Engineering, Vol.16, No.4, 434-447 (SCI) |
| Oliveira, Stanley R. M. and Zaïane, Osmar R. and Saygın, Yücel, (2004) “Secure association rule sharing”, Lecture Notes in Computer Science (Advances in Knowledge Discovery and Data Mining), Vol.3056, 74-85 (SCI) |
| Çiçek, A. Ercüment and Nergiz, Ercan and Saygın, Yücel, () “Ensuring location diversity in privacy-preserving spatio-temporal data publishing”, VLDB Journal (forthcoming) (SCI) |
| Gürsoy, Mehmet Emre and İnan, Ali and Nergiz, Mehmet Ercan and Saygın, Yücel, () “Privacy-preserving learning analytics: challenges and techniques”, IEEE Transactions on Learning Technologies (forthcoming) (SCI) |
| Bilici, Eda and Saygın, Yücel, () “Why do people (not) like me?: mining opinion influencing factors from reviews”, Expert Systems with Applications (forthcoming) (SCI) |
Book |
| Privacy in statistical databases UNESCO Chair in Data Privacy International Conference, PSD 2008, Istanbul, Turkey, September 24-26, 2008, Proceedings, Domingo-Ferrer, Josep and Saygın, Yücel (eds.), Berlin: Springer, September 2008 |
| Lecture Notes in Computer Science, Saygın, Yücel (ed.), Germany: Springer (forthcoming) |
| Privacy, security, and trust in KDD First ACM SIGKDD International Workshop, PinKDD 2007, San Jose, CA, USA, August 12, 2007, Revised, Selected papers, Bonchi, Francesco and Ferrari, Elena and Malin, Bradley and Saygın, Yücel (eds.), Berlin: Springer 2008 |
Book Section / Chapter |
| Gezici, Gizem and Yanıkoğlu, Berrin and Tapucu, Dilek and Saygın, Yücel, Sentiment analysis using domain-adaptation and sentence-based analysis Advances in Social Media Analysis, Gaber, Mohamed Medhat and Cocea, Mihaela and Wiratunga, Nirmalie and Göker, Ayşe (eds.), Switzerland: Springer International Publishing, June 2015, 45-64 |
| Çaycı, Ayşegül and Eibe, Santiago and Menasalvas, Ernestina and Saygın, Yücel, Bayesian networks to predict data mining algorithm behavior in ubiquitous computing environments Analysis of Social Media and Ubiquitous Data: International Workshops MSM 2010, Toronto, Canada, June 13, 2010, and MUSE 2010, Barcelona, Spain, September 20, 2010, Revised Selected Papers, Atzmueller, Martin and Hotho, Andreas and Strohmaier, Markus and Chin, Alvin (eds.), Berlin/Heidelberg: Springer 2011, 119-141 |
| Saygın, Yücel and Nergiz, Mehmet Ercan, Condensation-based methods in emerging application domains Privacy-Aware Knowledge Discovery: Novel Applications and New Techniques, Bonchi, Francesco and Ferrari, Elena (eds.), Boca Raton, FL, USA: CRC Press, November 2010 |
| Bonchi, Francesco and Saygın, Yücel and Verykios, Vassilis and Atzori, Maurizio and Goukalas, Aris and Kaya, Volkan and Savaş, Erkay, Privacy in spatiotemporal data mining Mobility, data mining, and privacy: geographic knowledge discovery, Giannotti, Fosca and Pedreschi, Dino (eds.), Berlin: Springer Heidelberg 2008, 297-333 |
| Pedreschi, Dino and Bonchi, Francesco and Turini, Franco and Verykios, Vassilios and Atzori, Maurizio and Malin, Bradley and Moelans, Bart and Saygın, Yücel, Privacy protection: regulations and technologies, opportunities and threats Mobility, data mining, and privacy: geographic knowledge discovery, Giannotti, Fosca and Pedreschi, Dino (eds.), Berlin: Springer Heidelberg 2008, 101-119 |
| Saygın, Yücel, Privacy and confidentiality issues in data mining Encyclopedia of data warehousing and mining, Wang, John (ed.), London: Idea Group Publishing 2006 |
| Saygın, Yücel, Hoarding in mobile computing environments Mobile computing handbook, CRC Press, January 2005 |
| Saygın, Yücel, Sanitization and anonymization of document repositories Web and Information Security, Hershey, PA, USA: Idea Group Inc., January 2005, 133-148 |
| Saygın, Yücel and Wang, Yungtong and Reisman, Arnold, A game theoretic approach to value information in data mining Icm Millennium Lectures on Games, Petrosyan, Leon and Yeung, David W.K. (eds.), Berlin: Springer Verlag, January 2003 |
Papers in Conference Proceedings |
| Ozturkcan, Selcen and Kasap, Nihat and Arın, İnanç and Saygın, Yücel, ” Reflections of social support on Twitter: the case of the Soma mine disaster in Turkey “, Alareeni, Bahaaeddin and Hamdan, Allam and Khamis, Reem and El Khoury, Rim (eds.), International Conference on Business and Technology, ICBT 2022, Springer Cham, March 2023, 79-88 |
| Öztürkcan, Selcen and Arın, İnanç and Kasap, Nihat and Saygın, Yücel, ” Twitter reflections on Syrian conflict from Turkey “, Alareeni, Bahaaeddin and Hamdan, Allam (eds.), International Conference on Business and Technology, ICBT 2021, Springer Cham, June 2022, 833-857 |
| Aytekin, Mehmet Cem and Rabiger, Stefan and Saygın, Yücel, “Discovering the prerequisite relationships among instructional videos from subtitles“, 13th International Conference on Educational Data Mining, EDM 2020, International Educational Data Mining Society, July 2020, 569-573 |
| Rabiger, Stefan and Dalkılıç, Tuğberk and Doğan, Alperen and Karakaş, Buket and Türetken, Berk and Saygın, Yücel, “Exploration of video e-learning content with smartphones“, Sánchez, Inmaculada Arnedillo and Isaías, Pedro and Bontchev, Boyan (eds.), 16th International Conference Mobile Learning 2020 (ML 2020), IADIS, April 2020, 71-77 |
| Hammoud, Khodor and Benbernou, Salima and Ouziri, Mourad and Saygın, Yücel and Haque, Rafiqul and Taher, Yehia, “Personal information privacy: what’s next?“, Hojeij, Marie-Rita and Taher, Yehia and Zeitouni, Karine and Finance, Béatrice and Haque, Rafiqul and Dbouk, Mohammed (eds.), 2nd International Conference on Big Data and Cyber-Security Intelligence, CEUR Workshop Proceedings, December 2019, 30-37 |
| Rabiger, Stefan and Gezici, Gizem and Saygın, Yücel and Spiliopoulou, Myra, “Predicting worker disagreement for more effective crowd labeling“, 5th IEEE International Conference on Data Science and Advanced Analytics (IEEE DSAA), IEEE (Institute of Electrical and Electronics Engineers), October 2018, 179-188 |
| Esmerdağ, Emir and Gürsoy, Mehmet Emre and İnan, Ali and Saygın, Yücel, “Explode: an extensible platform for differentially private data analysis“, Domeniconi, C. and Gullo, F. and Bonchi, F. and DomingoFerrer, J. and BaezaYates, R. and Zhou, Z. H. and Wu, X. (eds.), 16th International Conference on Data Mining Workshops (ICDMW), Barcelona: IEEE (IEEE Computer Society), December 2016, 1300-1303 |
| Rabiger, Stefan and Kazmi, Mishal and Saygın, Yücel and Schüller, Peter and Spiliopoulou, Myra, “SteM at SemEval-2016 task 4: applying active learning to improve sentiment classification“, 10th International Workshop on Semantic Evaluation (SemEval-2016), Association for Computer Linguistics, October 2016 |
| İnan, Ali and Gürsoy, Mehmet Emre and Esmerdağ, Emir and Saygın, Yücel, “Graph-based modelling of query sets for differential privacy“, Manolescu-Goujot, I. and Trani, L. and Baumann, P. and Dobos, L. and Ioannidis, Y. and Barnafoldi, G. G. and Banyai, E. (eds.), 28th International Conference on Scientific and Statistical Database Management (SSDBM 2016), ACM (Association for Computing Machinery), July 2016 |
| Dehkharghani, Rahim and Yanıkoğlu, Berrin and Tapucu, Dilek and Saygın, Yücel, ” Subjectivity-based features for sentiment classification: a study on two lexicons “, SENTIRE 2012: Sentiment Elicitation from Natural Text for Information Retrieval and Extraction, Brussels, Belgium:, December 2012 |
| Gezici, Gizem and Yanıkoğlu, Berrin and Tapucu, Dilek and Saygın, Yücel, ” New features for sentiment analysis: do sentences matter? “, Gaber, Mohamed Medhat and Cocea, Mihaela and Weibelzahl, Stephan and Menasalvas, Ernestina and Labbé, Cyril (eds.), First International Workshop on Sentiment Discovery from Affective Data (SDAD 2012), Bristol, UK: CEUR, September 2012, 5-15 |
| Altop, Barış and Nergiz, Mehmet Ercan and Saygın, Yücel, ” A probabilistic inference attack on suppressed social networks “, IEEE/ACM International Conference on Advances in Social Networks Analysis and Mining (ASONAM 2012), USA: IEEE Computer Society 2012, 726-727 |
| Husaini, MusAb Habib and Koçyiğit, Ahmet and Tapucu, Dilek and Yanıkoğlu, Berrin and Saygın, Yücel, ” An aspect-lexicon creation and evaluation tool for sentiment analysis researchers “, Flach, Peter A. and De Bie, Tijl and Cristianini, Nello (eds.), ECML PKDD 2012, Berlin Heidelberg: Springer 2012, 804-807 |
| Amro, Belal Mohammed and Saygın, Yücel and Levi, Albert, ” PA-CTM: privacy aware collaborative traffic monitoring system using autonomous location update mechanism “, 4th ACM SIGSPATIAL International Workshop on Security and Privacy in GIS and LBS (SPRINGL ’11), New York, USA: ACM (Association for Computing Machinery), November 2011, 1-8 |
| Amro, Belal Mohammed and Levi, Albert and Saygın, Yücel, ” CoRPPS: collusion resistant pseudonym providing system “, 2011 IEEE International Conference on Privacy, Security, Risk, and Trust (PASSAT 2011), USA: IEEE Computer Society, October 2011, 1056-1063 |
| Amro, Belal Mohammed and Saygın, Yücel and Levi, Albert, ” P2-CTM: privacy preserving collaborative traffic monitoring “, 3rd ACM SIGSPATIAL International Workshop on Security and Privacy in GIS and LBS (SPRINGL ’10), New York, NY, USA: ACM (Association for Computing Machinery), November 2010, 55-59 |
| Çaycı, Ayşegül and Sümengen, Selçuk and Turkay, Çağatay and Balcısoy, Selim and Saygın, Yücel, ” Temporal dynamics of user interests in web search queries “, 23rd International Conference on Advanced Information Networking and Applications Workshops (WAINA ’09), USA: IEEE (Institute of Electrical and Electronics Engineers), May 2009, 762-767 |
| Doğanay, Mahir Can and Pedersen, Thomas Brochmann and Saygın, Yücel and Savaş, Erkay and Levi, Albert, “Distributed privacy preserving k-means clustering with additive secret sharing“, Proceedings of the 2008 International Workshop on Privacy and Anonymity in Information Society, PAIS 2008,, ACM Digital Library: ACM, March 2008, 3-11 |
| Pedersen, Thomas Brochmann and Saygın, Yücel and Savaş, Erkay, “Secret charing vs. encryption-based techniques for privacy preserving data mining“, Joint UNECE/Eurostat Work Session on Statistical Disclosure Control, Manchester, UK: Eurostat, December 2007 |
| Saygın, Yücel, ” A privacy preserving assertion based policy language for federation systems “, 12th ACM Symposium on Access Control Models and Technologies, New York, NY, USA: ACM (Association for Computing Machinery) 2007, 51-60 |
| İnan, Ali and Saygın, Yücel and Levi, Albert and Savaş, Erkay and Hintoğlu, Ayça Azgın, “Privacy preserving clustering on horizontally partitioned data“, 22nd International Conference on Data Engineering Workshops (ICDEW’06), New York: IEEE, April 2006, 95-95 |
| Demiröz, Gülşen and Yanıkoğlu, Berrin and Tapucu, Dilek and Saygın, Yücel, ” Learning domain-specific polarity lexicons “, SENTIRE 2012: Sentiment Elicitation from Natural Text for Information Retrieval and Extraction, Brussels, Belgium: (forthcoming) |
Volumes Edited / Special Issues |
| Levi, Albert and Savaş, Erkay and Yenigün, Hüsnü and Balcısoy, Selim and Saygın, Yücel, Proceedings of computer and information sciences – ISCIS 2006, Springer, November 2006 |
| Levi, Albert and Savaş, Erkay and Yenigün, Hüsnü and Balcısoy, Selim and Saygın, Yücel, Computer and information sciences-ISCIS 2006, Heidelberg, Germany: Springer, October 2006, 1-1084 |
| Saygın, Yücel, Privacy aspects of data mining, New York: Elsevier (forthcoming) |
Working Paper / Technical Report |
| Nergiz, Mehmet Ercan and Çiçek, Ercüment Abdullah and Saygın, Yücel, “A look ahead approach to secure multi-party protocols”, June 2009, Sabancı University ID:SU_FENS_2009/0003 |