HAYRI SEVER, Ph.D.

PROFESSOR of SOFTWARE ENGINEERING DEPARTMENT

e-mail:

sever@cankaya.edu.tr

Land Phone (Work)

+90(312) 233 1343

Fax:

+90(312) 233 1026

Mobile:

+90(537) 983 8470

Linkedin:

www.linkedin.com/in/hayrisever

ORCID  ID:

https://orcid.org/0000-0002-8261-0675 

Research Gate:

https://www.researchgate.net/profile/Hayri_Sever 

Address:

Software Engineering Department, Engineering Faculty,  Cankaya University, Yukarıyurtcu 06815 Etimesgut Ankara

Dr. Hayri Sever has been a Faculty Member and Chair of Software Engineering Department at Cankaya University (www.cankaya.edu.tr) since Feb of 2018, which has both the first rank at nationwide (and 401-500 level in the world) as well as  fifth rank among national private universities with respect to Times Higher Education World University Rankings (https://www.timeshighereducation.com/world-university-rankings/cankaya-university ) and URAP Index (http://tr.urapcenter.org/2019/2019_t6.php) in sequence. Previously -between July/2008 and Jan/2018- he has been a professor and Chair of Computer Engineering Department as well as Head of Software Engineering Main Division at Engineering Faculty of Hacettepe University whose international rank is at 501-600 (third among national universities) in 2019 with respect to THE (Times Higher Education) and  national rank is number one in 2019 with regard to URAP, and number one again  in 2018-2019 with respect to Turkey - CWUR World University Rankings.  Dr. Sever has become Dean of the Informatics Institute at Hacettepe University between 2009-2012. He had served -between Feb/2007 and July/2008- as a professor of computer engineering at Cankaya University; between Sept/2002 and  Feb/2007 as a professor and Chair of Computer Engineering Department at Baskent University; between Oct/1995 and Sept/2000 associate professor and the Vice Chair of Computer Engineering Department at  Hacettepe University. He was at  Computer Science and Engineering Department of University of Nebraska at Lincoln, NE as a visiting professor and at the Center for Intelligent Information Retrieval of Massachusetts University at Amherst, MA as a visiting scholar for two years. He served as a teaching assistant during his Ph.D. study at the Center for Advanced Computer Studies of University of Louisiana at Lafayette, LA and research assistant at the National Geographic Center of  Maine University at Orono, ME. Dr. Sever became co-founder and CTO of Mantis Software GmbH. (www.mantis.com.tr) between 2007-15 and the R&D Coordinator at NETCAD Software Corp. (www.netcad.com.tr ) for nine years. Dr. Sever had served for three years as the Head of Information Technologies Committee at the Scientific and Technological Research Council of Turkey (TUBITAK-TEYDEB) and one year at Turkish Standardization Institute (TSE).  His research interests span multimedia information retrieval, vertical search engines, data and web mining, speech processing, semantic analysis models, spatial information systems, social network  analysis, and genomics. Dr. Sever has either managed or served as a consultant  for over 25 national or international industrial projects. Dr. Sever is a member of  Turkish Informatics Society (1374),  ACM (7650955) and IEEE (80461218).

                                                

Education Information        

Ph.D.  (1991-1995)

University of Louisiana at Lafayette

Computer Science (https://computing.louisiana.edu/)

MSc. (1989-1991)

University of Maine at Orono

Computer Science (https://umaine.edu/cs/)

BSc (1982-1986)

Hacettepe University

Computer Engineering (http://cs.hacettepe.edu.tr/)

Positions

PROFESSOR

2018

CANKAYA UNIVERSITY/ENGINEERING FACULTY/SOFTWARE ENGINEERING DEPARTMENT

PROFESSOR

2008-2018

HACETTEPE UNİVERSITY/ ENGINEERING FACULTY/COMPUTER ENGINEERING DEPARTMENT/HEAD of COMPUTER SOFTWARE MAIN DIVISION

PROFESSOR

2007-2008

CANKAYA UNIVERSITY/ENGINEERING FACULTY/COMPUTER ENGINEERING DEPARTMENT

PROFESSOR

2003-2007

BASKENT UNIVERSITY/ENGINEERING FACULTY/COMPUTER ENGINEERING DEPARTMENT

ASSOCIATIVE PROFESSOR

2000-2002

University of Massachusetts Amherst/College of Information and Computer Sciences/Computer Science/Center for Intelligent Information Retrieval (Visitor)

ASSOCIATIVE PROFESSOR

1997-2000

HACETTEPE UNİVERSITY/ ENGINEERING FACULTY/COMPUTER ENGINEERING DEPARTMENT/HEAD of COMPUTER SOFTWARE MAIN DIVISION

ASSOCIATIVE PROFESSOR

1998-1999

The University of Nebraska-Lincoln/Collage of Arts and Sciences/Computer Science and Engineering (Visitor)

ASSISTANT PROFESSOR

1995-1997

HACETTEPE UNİVERSITY/ ENGINEERING FACULTY/COMPUTER ENGINEERING DEPARTMENT/HEAD of COMPUTER SOFTWARE MAIN DIVISION

TEACHING ASSISTANT

1991-1995

University of Louisiana at Lafayette/School of Computing and Informatics/Computer Science

RESEARCH ASSISTANT

1989-1991

University of Maine/College of Liberal Arts and Sciences/Computing and Information Science

                                                        

Administrative and Industrial Posts

Chair

2019-Present

Software Engineering Department, Cankaya University

Chair

2010-2015

Computer Engineering Department, Hacettepe University

Dean

2009-2012

Informatic Institute, Hacettepe University

Head of Software Engineering Main Division

2010-2018

Computer Engineering Department, Hacettepe University

Head of Computer Engineering Main Division

2010-2015

Graduate School of Science and Engineering, Hacettepe University

Co-founder and CTO

2007-2015

Mantis Software GmbH (www.mantis.com.tr)

R&D Coordinator

2005-2015

NETCAD GmbH (www.netcad.com.tr)

Chair

2003-2007

Computer Engineering Department, Baskent University

Head of Information Technologies Committee

2006-2009

TUBITAK-TEYDEB

Head of Information and Communication Technology  Committee  

2012-2013

TSE (Turkish Standardization Institute)

Vice Chair

1997-2001

Computer Engineering Department, Hacettepe University

Coordinator of Information Technology

1999-2000

Rectorate, Hacettepe University

Publications

  1. Senol, A. and  Sever, H. (2018) Block Size Analysis for Discrete Wavelet Watermarking and Embedding a Vector Image as a Watermark, The International Arab Journal of Information Technology (IAJIT), 16(6): 1-8, (Nov., 2019).

  1. O. E. Para, E. A. Sezer, ve H. SEVER (7/2019). Clinical Decision Support Systems: From the Perspective of Small and Imbalanced Data Set. Health Informatics Vision: From Data via Information to Knowledge. J. Mantas at al (Eds), Studies in Health Technology and Informatics. 262: 344-347. IOS Press, Amsterdam. ISBN: 978-1-61499-986-7.

  1. F. Saglam, B. Genc ve H. Sever (March, 2019).  Extending a sentiment lexicon with synonym-antonym datasets: SWNetTR plus. Turkish Journal of Electrical Engineering and Computer Sciences. 27(3): 1806-1820.

  1. M.S. Çınar, B. Genc ve H. Sever (Ocak, 2019). Identifying criminal organizations from their social network structure. Turkish Journal of Electrical Engineering and Computer Sciences. 27(1): 421-436. 

  1. O. E. Para, E. A. Sezer, ve H. SEVER (4/2019). Small and Unbalanced Data Set Problem in Classification. IEEE 27th Signal Processing and Communications Applications Conference (SIU), ISBN: 1728119057.

  1. Cinar, M.S., Genc, B., and Sever, H. (2018) Terör Örgütlerinin Etkisizlestirilmesinde Sosyal Ağ Analizinin Kullanımı, SAVTEK, 27-29 Haziran 2018, Ankara.

  1. Mertoglu, U., Sever, H., and Genc, B. (2018) Savunmada Yenilikci bir Dijital Donusum Alani: Sahte Haber Tespit Modeli, SAVTEK, 27-29 Haziran 2018, Ankara.

  1. Canbay, A., Sever, H., and Sezer, E.A. (2018) Determining of discriminative blog size for authorship attribution on the Turkish texts, 6th international Symposium on Digital Forensic and Security (iSDFS), Antalya, Turkey.  

  1. Nasser, A., and Sever, H. (2018) A Large Scale Arabic Sentiment Corpus Construction Using Online News Media, Journal of Engineering and Applied  Sciences, 13(17): 7329-7340, DOI: 10.3923/jeasci.2018.7329.7340.

  1. Nasser, A., and Sever, H. (2018) Intrusion Detection Architecture based on Rough Sets, Journal of Engineering and Applied  Sciences, 14: 415-422, DOI: 10.3923/jeasci.2019.415.422.

  1. Canbay, P., Sezer, E.A., Sever, H. (2018) Authorship modelling approach for authorship verification on the Turkish texts, 26th IEEE Signal Processing and Communications Applications Conference, 2-5  Mayis, Antalya, TR.
  2. Nasser, A., Sever, H. and Raghavan, V.V. (2017). Utilization of Rough Sets for Intrusion Detection, 17th World Congress of IFSA-SCIS'17, Otsu, Japan.

  1. Karli, M., Efe, M.O., and Sever, H. (2017) Air Combat Learning from F-16 Flight Information, Proc. of IEEE International Conference on Fuzzy Systems, 1-6, Naples IT.

  1. Cınar, M.S., Genc, B., Sever, H., ve Raghavan V.V. (2017) Analyzing Structure of Terrorist Networks by Using Graph Metrics, IEEE ICBK'17, 9-16, August, in Hefei, China.

  1. Bilge, Y.C., Kaya, F., Cinbis, N.I., Celikcan, U., Sever, H. (2017) Gelistirilmis Arka Plan Cikarimi ile Anomali Tespiti, 25th IEEE Signal Processing and Communications Applications Conference, 15-18  Mayis, Antalya, TR.

  1. Ozpala, A., Efe, M.O., and Sever, H. (2017) Multiple UAV Engagement Decision by Game Theory, International Journal of Computer Electrical Engineering, 9(1): 384-392. DOI: 10.17706/ijcee.2017.9.1.

  1. Karli, M., Efe, M.O., and Sever, H. (2017) Extracting Basic Fighter Maneuvers from Actual Flight Data, Lecture Notes on Information Theory, 5(1): 1-6.

  1. Oruc, M., Akal, F., Sever, H. (2016) Detecting Design Patterns in OO Design Models by using a Graph Mining Approach, Proceedings of IEEE ConiSoft'16, April 27-29, Puebla, Mexico.

  1. Ucan, A., Naderalvojoud, B., Sezer, E.A., Sever, H. (2016) SentiWordNet for New Language: Automatic Translation Approach, IEEE 12th Int. Conf. on Signal-Image Technology & Internet-Based Systems, pp. 308-315. DOI: 10.1109/SITIS.2016.57.

  1. Nasser, A., Dincer, K., Sever, H. (2016) Investigation of Feature Selection Problem in Sentiment Analysis for Arabic Language, Proceedings of 17th International Conference on Intelligent Text Processing and Computational Linguistics, April 3-9, Konya, Turkiye.

  1. Saglam, F., Genc, B., and Sever, H. (2016). Developing Turkish sentiment lexicon for sentiment analysis using online news media, 2016 IEEE/ACS 13th International Conference of Computer Systems and Applications (AICCSA),  Agadir, Morocco, Nov 29 – Dec 02.

  1. Mengusoglu, E., Sever, H., Asefisaray B., Haciomeroglu, M. (2016).  ”Turkce ses tanima sistemlerinde dil modeli boyutunun dogruluk oranina etkisi - How does language model size effects speech recognition accuracy for the Turkish language?.” Pamukkale Üniversitesi Mühendislik Bilimleri Dergisi (PAJES), 22(2): 100-106.

  1. Senol, A. & Sever, H. (2015 Oct). A Blind Authentication Purpose Discrete Wavelet Watermarking. In 8th International Conference on Information Security and Cryptology, Oct 30-31 2015, Ankara.

  1. Canbay, P., & Sever, H. (2015, Dec). The Effect of Clustering on Data Privacy. In 14th Int. Conf. on Machine Learning and Applications (IEEE ICMLA), Miami FL, Dec 9-11 2015.

  1. Ahmadlouei, A., Sever, H., Mengusoglu, E. (2016) Link Detection Based on Named Entity Keywords in Turkish News Corpus, In Proceedings of The Second International Conference on Big Data, Small Data, Linked Data and Open Data (ALLDATA 2016), February 21 - 25  - Lisbon, Portugal.

  1. Senol, A., Dincer, K., Sever, H., & Elbasi, E. (2015, May). Blocked-DWT based vector image watermarking. In Signal Processing and Communications Applications Conference (SIU), 2015 23th (pp. 264-267). IEEE.

  1. M. Karlı, M.O. Efe, H. Sever (2015), "Close Range One to One Air Combat Maneuvering for Autonomous UAV," 8. Ankara International Aerospace Conference, 10-12 September, Ankara, Turkey,  (Paper# AIAC2015-046).

  1. Fırat Akba, Alaettin Ucan, Ebru Akcapinar Sezer, Hayri Sever  (July 2014). “Assessment of Feature Selection Metrics for Sentiment Analyses: Turkish Movie Reviews,” 8th European Conference on Data Mining (ECDM'14), Lisbon Portugal.

  1. Senol, A., Dincer, K., Elbasi, E., Sever, H. (2014)  "A Block Size Analysis for Blocked Discrete Wavelet Watermarking,"  7th International Conference on Information Security and Cryptology (ISC Turkey 2014), Istanbul, Turkey, 17–18 October 2014.

  1. Guven Kose, Hayri Sever, Mert Bal, Alp Ustundag. Comparison of different inference algorithms for medical decision making. International Journal of Computational Intelligence Systems (Taylor&Francis). 7(1): 29-44. 2014.

  1. Aslanturk, O., Sezer, E. A., Sever, H. (2014). Investigating Stylistic Features of Turkish Texts, In Proceedings of the 6th International Conference on Qualitative and Quantitative Methods in Libraries, Istanbul, Turkey.

  1. Aktas P., Sever H., and Aydos M., Role-Based Privacy-Preserving Health Records Distribution, 2nd International Conference on E-Health and TeleMedicine (ICEHTM), Istanbul-Turkey, 2014.

  1. Mutlu, B., Hacıomeroglu, M., Guzel, M.S., Sever, H. (2014) Silhoutte Extraction from Street View Images, International Journal of Advanced Robotic Systems, 11: 114 doi: 10.5772/58740, pp. 1-12.

  1. Demir Seyfullah, Sezer Ebru, Sever Hayri (2014).  Modifications for the Cluster Content Discovery and the Cluster Label Induction Phases of the Lingo Algorithm.  International Journal of Computer Theory and Engineering (IJCTE), 6(2), 86-90. DOI: 10.7763/IJCTE.2014.V6.842.

  1. Bal, M., Amasyali, MF., Sever, H., Kose, G., and Demirhan A. (2014) Performance Evaluation of Machine Learning Algorithms Used in Inference Mechanism of a Medical Decision Support System, Scientific World Journal, DOI: 10.1155/2014/137896.

  1. Ozcan, C.Y., Haciomeroglu, M., Barut, O., Sever. H. (2013) A Path-Based Composite Crowd Simulation Model, 26th International Conference on Computer Animation and Social Agents (CASA), 16-18 May, Istanbul, TR.

  1. Haciomeroglu, M., Ozcan, C.Y., Barut, O., and Sever, H.  (2013) A GPU-assisted hybrid model for real-time crowd simulations, Computers & Graphics 37(7): 862-872.

  1. Haciomeroglu, M., Ozcan, C.Y., Barut, O.,  Seckin, L., Sever, H. (2013) Hardware-accelerated dynamic clustering of virtual crowd members,  Journal of Visualization and Computer Animation 24(2): 143-153.

  1. Oguz Aslanturk, Ebru A. Sezer, Hayri Sever, Vijay Raghavan (2010) Application of Cascading Rough Set-Based Classifiers on Authorship Attribution. IEEE Int. Conf. on Granular Computing GrC : 656-660.

  1. Fatih Mehmet Gulec, Tahir Bicakci, Ebru A. Sezer, Hayri Sever, Vijay V. Raghavan (2010) Analyzing the Effectiveness of Pruning and Grouping Methods Used in Literature-Based Discovery Tools, Web Intelligence/IAT Workshops: 304-308.

  1. Aydıncan Polatkan, Hayri Sever, Hasan Ogul. “A Data Fusion Approach In Protein Homology Detection,” Appear in IEEE Proceedings of International Conference on Biocomputation, Bioinformatics, and Biomedical Technologies (BIOTECHNO’08), June 29- July 5, 2008, Bucharest, Romania. 

  1. Mehmet R. Tolun, Hayri Sever, and A. Kadir Gorur. "Production and Retrieval of Rough Classes in Multi Relations," IEEE Int. Conf. on Granular Computing (GrC 2007), Silicon Valley USA.

  1. Bal. M., Sever, H., Kalipsiz, O. (2007) Modelling the Symptom-Disease Relationship by Using Rough Set Theory and Formal Concept Analysis, International Journal of Medical, Health, Biomedical Engineering,  World Academy of Science, Engineering and Technology, 1(11): 586-90.

  1. Sever, H., Akal, F. ve Kose G. Kavram Tabanlı Bilgi Geri Getirim Yaklaşımı, Bilgi Dunyası, 8(1): 49-75, 2007.

  1. Sever, H., Gurcay, H. Ak, S. (2007) Konumsal Erisim Yontemleri, Harita Dergisi, 138: 84-99.

  1. Ayhan, M.S., Sever, H. ve Gurcay, H. (2007)  Konumsal Dizinleme Yontemlerinin Karsilastirilmasi, TMMOB CBS’07, Trabzon, TR.

  1. Turan, F., Sever, H.  ve Gurcay, H. (2007). Web Servisleri Tabanlı Coğrafi Bilgi Sistemleri, TMMOB CBS’07, Trabzon, TR.

  1. Sever, H. ve Kose, G. (2007) Skor Dagılımlı Ust Arama Modeli, TBV Bilgisayar Bilimleri ve Muhendisligi Dergisi,  1: 1-14.

  1.  Sever, H.  ve Tonta, Y. (2006). Arama Motorları, TBV Bilisim Ansiklopedisi, pp. 95-99.

  1. Sever, H.  ve Bolat, M.Z. (2006) Bilgi Suzme, TBV Bilisim Ansiklopedisi, pp. 173-176.

  1. Sever, H.  ve Kose, G. (2006) Ust Arama Motorları, TBV Bilisim Ansiklopedisi, pp. 873-877.

  1. Sever, H.  ve Ozel, B. (2006) Veri Madenciligi, TBV Bilisim Ansiklopedisi, pp. 883-887.

  1. Sever, H.  ve Kucuk, M.E. (2006) Internet’te Kaynak Kesfi,  TBV Bilisim Ansiklopedisi, pp. 491-494.

  1. Sever,  H., Bolat, Z., and  Raghavan,  V.V. (June 2004). Use of Preference Relation for Text Categorization, Lecture Notes in Artificial Intelligence, Springer-Verlag, Vol. 3066, 708-713.

  1. Sever, H.  and Raghavan, V.V. (June 2004). Meta Patterns: Discovering Rough Classifiers, North American Fuzzy Information Processing Society (S. Dick, L. Kurgan, W. Pedrycz, and M. Reformat, eds), IEEE Proceeding, Vol. 2, 702-706.

  1. Sever, H., Gorur,  A.  and Tolun, M.R. (2003). Text Categorization with ILA. Lecture Notes in Computer Science, Springer-Verlag, Vol. 2869, 300-307.

  1. Sever, H.  and Bitirim, Y. (Oct. 2003). The Analysis and Evaluation of Stemming algorithms for Turkish. Lecture Notes in Computer Science, Springer-Verlag, Vol. 2857, 238-251.

  1. Sever, H.  and Bolat, M.Z. (June 2-5, 2003). A Text Filtering Method for Digital Libraries. (IATUL’03). The 24th Annual Conference on International Association of Technological University Libraries.. Ankara, Turkey.

  1. Sever, H.  and Oguz, B. (2002). Veritabanlarında Bilgi Kesfine Formal Bir Yaklasim: Kısım I – Eslestirme Sorguları ve Algoritmalar. Bilgi Dunyasi, 3(2): 173-204.

  1. Sever, H.  and Oguz, B. (2003) Veritabanlarında Bilgi Kesfine Formal Bir Yaklasım: Kısım II – Eslestirme Sorgularının Bicimsel Kavram Analizi ile Modellenmesi, Bilgi Dunyasi, 4(1): 15-44.

  1. Sever, H.  and Tolun, M. (2002). Comparison of Normalization Techniques for Metasearch. Lecture Notes in Computer Science, Springer Verlag,  Vol. 2457, pp. 133-143.

  1. Bitirim, Y., Tonta, Y. and Sever, H.  (2002). Information Retrieval Effectiveness of Turkish Search Engines. Lecture Notes in Computer Science, Springer Verlag,  Vol. 2457, pp. 93-103, 2002.

  1. Tonta, Y. and Bitirim, Y. and  Sever, H. (2002). Turkce Arama Motorlarinda Performans Degerlendirme, pp. 1-152, Damla Publisher Ltd.

  1. Manmatha, R.  and  Sever, H. (March 24-27, 2002)  A Formal Approach to Score Normalization for Metasearch, Human Language Technology Conference (HLT'02), San Diego, CA.

  1. Kucuk, M.E., Olgun,  B.  and Sever, H.  (2000)  Application of Metadata Concepts to Discovery of Internet Resources, Lecture Notes in Computer Science (LNCS), Springer Verlag, Vol. 1909, pp. 304-13.

  1. Alsaffar, A.H., Deogun, J.S., and Sever,  H. (2000) Optimal Queries in Information Filtering, Lecture Notes in Artificial Intelligence (LNAI), Springer Verlag, Vol. 1932, pp. 435-43.

  1. Oguz, B., Sever, H. ve Tolun, M. (June 21-23, 2000). Eşleştirme Sorgularının Modellenmesi, The ninth Turkish Symposium on Artificial Intelligence and Neural Networks (TAINN'00), Izmir, Turkiye, pp. 381-390.

  1. Olgun, B. and Sever, H.  (April 2000) Kaynak Kesif Yeteneginin Artırılması icin Internet Kaynaklarının Iceriklerinin Standart Bicimde Tanımlanması, Bilgi Dunyasi, 1(1), pp. 56-88.

  1. Alsaffar, A.H., Deogun,  J.S., Raghavan,  V. V., and Sever,  H. (March-June 2000)  Enhancing Concept-based Retrieval Based on Minimal Term Sets, Intelligent Information Systems Journal (JIIS), 14(2/3), pp. 155-73.

  1. Bollmann-Sdorra, P., Raghavan, V. V., and  Sever, H. (October 18-20, 1999) Term Preference Weight, Proceedings of 14th International Symposium on Computer and Information Sciences (ISCIS'99), Izmir, Turkey, pp. 360-369.

  1. M.R. Tolun, H. Sever , M. Uludag, S.M. Abu-Soud, ILA-2: An Inductive Learning Algorithm for Knowledge Discovery, Cybernetics and Systems: An International Journal, 30(7), pp. 609-628, Oct-Nov. 1999.

  1. S. K. Choubey, J. S. Deogun, V. V. Raghavan, and H. Sever, On Feature Selection and Effective Classifiers, Journal of American Society for Information Science (JASIS), 49(5), May 1998, pp. 423-434.

  1. V. V. Raghavan, J.S. Deogun, and H. Sever, Data Mining: Trends and Issues, Guest editors' introduction for JASIS' special issue on data mining, 49(5), 1998, pp. 397-402.

  1. J. S. Deogun, V. V. Raghavan, A. Sarkar, and H. Sever, Data Mining: Trends in Research and Development. Rough Sets and Data Mining: Analysis for imprecise Data. (T. Y. Lin and N. Cercone, Eds.), Kluwer Academic Publishers, pp. 9-45, 1997.

  1. J.S. Deogun, V.V. Raghavan, and H. Sever. Concept Based Retrieval by Minimal Term Sets. Foundations of Intelligent Systems, 11th International Symposium on Methodologies for Intelligent Systems (ISMIS'99). Warsaw, Poland. June 8-11, 1999. Springer Verlag (Eds. Z.W. Ras and A. Skowron). pg. 114-123.

  1. J.S. Deogun, V.V. Raghavan, and H. Sever. Association Queries and Formal Concept Analysis, The Sixth International Workshop on Rough Sets, Data Mining and Granular Computing (in conjunction with JCIS'98), 23-28 October, Research Triangle Park, NC, USA.

  1. J.S. Deogun, H. Sever, and V.V. Raghavan. Structural Abstractions of Hypertext Documents for Web-based Retrieval, Proceedings of Ninth International Workshop on Database and Expert Systems Applications, (in conjunction with DEXA'98) -- editor by Roland R. Wagner, IEEE Computer Society (Los Alamitos, California), 26-28 August, 1998, Vienna, Austria, pp. 385-390.

  1. Mehmet R. Tolun, Hayri Sever, and Mahmut Uludag, "Improved Rule Discovery Performance on Uncertainty," In Research and Development in Knowledge Discovery and Data Mining (eds. X. Wu, R. Kotagiri, and K.B. Korb), Lecture Notes in Artificial Intelligence, Springer-Verlag, Vol. 1394, pp.310-321.

  1. H. Sever, V.V. Raghavan, and T. D. Johnsten. The State of Rough Sets for Knowledge Discovery in Databases, ICNPAA-98: Second International Conference on Nonlinear Problems in Aviation and Aerospace, Daytona Beach, Florida, USA, Europen Conference Publications (S. Sivasundaram, Ed.), Cambridge, UK, 1998, Vol. 2, pp. 673-680.

  1. S. K. Choubey, J. S. Deogun, V. V. Raghavan, and H. Sever. A Comparison of Feature Selection Algorithms in the Context of Rough Classifiers, Proceedings of Fifth IEEE International Conference on Fuzzy Systems, vol. 2, New Orleans, LA, pp. 1122-1128, September 1996.

  1. G. Duran and H. Sever, Turkce Govdeleme Algoritmalarinin Analizi, Annual Conference of TBD'96, Istanbul, Turkey, September 1996, pp. 235-243.

  1. H. Sever, V.V. Raghavan, J.S. Deogun, and S.K. Choubey. A Comparison of Classification Methods. International Conference of Information Sciences -- Rough Set \#38; Computer Science. Vol. 3, pp. 371-374. Raleigh, NC. Mar. 1997.

  1. V. V. Raghavan and H. Sever. On the Reuse of Past Optimal Queries, Proceedings of 18th ACM International Conference on Research and Development in Information Retrieval (SIGIR'95), Seattle, WA, USA, July 1995, pp. 344-351.

  1. V. V. Raghavan, H. Sever, and J. S. Deogun, Exploiting Upper Approximations in the Rough Set Model, Proceedings of the First International Conference on Knowledge Discovery and Data Mining (KDD'95), Sponsored by AAAI in cooperation with IJCAI, Montreal, Quebec, Canada, August, 1995, pp. 69-74.

  1. J. S. Deogun, V. V. Raghavan, and H. Sever, Rough Set Based Classification Methods and Extended Decision Tables, Third International Workshop on Rough Sets and Soft Computing, T.Y. Lin and A.M. Wildberger, eds., The Society for Computer Simulation, pp. 302-306, 1995.

  1. V. V. Raghavan, and H. Sever, The State of Rough Sets for Database Mining Applications, Proceedings of 23rd Computer Science Conference Workshop on Rough Sets and Database Mining, T.Y. Lin ed., pp. 1-11, San Jose, CA, 1995.

  1. V. V. Raghavan, H. Sever, and J. S. Deogun, A System Architecture for Database Mining Applications, Fuzzy Sets and Knowledge Discovery Workshops in Computing Series(W. P. Ziarko, ed.), Springer-Verlag, pp. 82-89, 1994.

  1. V. Yalcin, H. Sever, and S. Torun, Turkiye Yuksek Ihtisas Hastanesi Veri Tabani, Proceedings of Tipta Bilgisayar Uygulamalari Simpozyumu, Izmir, Turkey, September, 1987, pp. 147-172.

 

Research Projects and Proposals:

Supervised Thesises