Hasan Davulcu

Assistant Professor

Office Hours:

Office: BY 564

• Tu 3:00 PM - 4:00 PM, Fr 2:00 PM - 3:00 PM

CIPS Research

Cognitive Information Processing Systems (CIPS) Lab's research focuses on developing novel data mining techniques and tools for structuring and organizing unstructured sources such as text, Web and biological data into semantic machine processable information. Such representations enable creation of conceptual maps to allow users to browse without information overload.

• Data mining, Web and Text mining
• Data Cleaning and Information Extraction
• Workflows and Web services
• Database Systems

Funding and Awards

• NSF CAREER (2007 - 2012)
• DoD-ONR MURI (2004 - 2006)
• Best Alternate Tracks Paper Runners-Up (WWW 2004)

Teaching

Conference Publications

Workflows and Web Services

• Singh P., Gelgi F., Davulcu H., Yau S.S. Mukhopadhyay S. A Risk Reducation Framework for Dynamic Workflows, Proc. of the IEEE International Conference on Services Computing (SCC'08)

• S. S. Yau, H. Davulcu, S. Mukhopadhyay, Adaptable Situation-Aware Secure Service Based Systems, Proceedings of 8th IEEE International Symposium on Object-oriented Real-time Distributed Computing (ISORC 2005), pp.308-315.

• H. Davulcu, M. Kifer, I.V. Ramakrishnan.CTR-S: A Logic for Specifying Contracts in Semantic Web Services 13th International World Wide Web Conference, May 17-22 2004, New York, NY.

• H. Davulcu, S. Mukherjee, I.V. Ramakrishnan. Extraction Techniques for Mining Services from Web Sources. IEEE International Conference on Data Mining (ICDM), December 9 - 12, 2002, Maebashi City, Japan.

• H. Davulcu, M. Kifer, C.R.Ramakrishnan, I.V.Ramakrishnan. Logic based modeling and analysis of workflows. ACM Symposium on Principles of Database Systems (PODS), Seattle, WA, June 1998.

Web Mining

• Nguyen, H., Davulcu, H. Mining Search-Phrase Definition from Item Descriptions. Proc. of the 24th IEEE International Conference on Data Engineering (ICDE'08)

• Gelgi, F., Davulcu, H. Baum-Welch Style EM Approach on Simple Bayesian Models for Web Data Annotation. Proc. of the IEEE/WIC/ACM International Conference on Web Intelligence (WI'07)

• Gelgi, F., Vadrevu, S., Davulcu, H. Fixing Weakly Annotated Web Data using Relational Models. Proc. of the 7th International Conference on Web Engineering (ICWE'07)

• Gelgi, F., Davulcu, H., Vadrevu, S. Term Ranking for Clustering Web Search Results. Proc. of the Tenth International Workshop on the Web and Databases (WebDB'07)

• Gelgi, F., Vadrevu, S., Davulcu, H. ScubaDiver: Subspace Clustering of Web Search Results. Proc. of the 3rd International Conference on Web Information System and Technologies (WebIST'07)

• Gelgi, F., Vadrevu S., Davulcu, H. Improving Web Data Annotations with Spreading Activation. International Conference on Web Information Systems Engineering (WISE'05), New York City, NY.

• Vadrevu, S., Gelgi F., Davulcu, H. Semantic Partitioning of Web Pages. International Conference on Web Information Systems Engineering (WISE'05), New York City, NY.

Text Mining

• Aswath, D., Ahmed, S., Davulcu, H. Boosting Item Keyword Search with Spreading Activation IEEE/WIC/ACM International Conference on Web Intelligence (WI'05), France.

• Davulcu, H., Nguyen, H., Ramachandran V. Boosting Item Findability: Bridging the Semantic Gap between Search Phrases and Item Information. ICEIS 2005: 48-55, FL.

• H. Nguyen, P. Velamuru, D. Kolippakkam, H. Davulcu, H. Liu, M. Ates. Mining "Hidden Phrase" Definitions from the Web. APWeb 2003, 23-25, April 2003, Xi'an, China.

• H. Davulcu, S. Mukherjee, I.V. Ramakrishnan. Clustering Technique for Mining Data from Text Tables. Second SIAM International Conference on Data Mining (ICDM), April 11-13, 2002, Arlington, VA, USA.

Data Cleaning and Information Extraction

• Vadrevu, S., Gelgi, F., Davulcu H. Automated Metadata and Instance Extraction from News Web Sites. IEEE/WIC/ACM International Conference on Web Intelligence (WI'05), France.

• H. Davulcu, M. Kifer, G. Yang, I.V. Ramakrishnan. Design and Implementation of the Physical Layer in WebBases: The XRover Experience. International Conference in Rules and Objects in Databases (DOOD), London, UK, July 2000.

• H. Davulcu, G. Yang, M. Kifer, I.V. Ramakrishnan. Computational Aspects of Resilient Data Extraction from Semistructured Sources, ACM Symposium on Principles of Database Systems (PODS), TX, May 2000.

• H. Davulcu, J. Freire, M. Kifer, I.V. Ramakrishnan. A Layered Architecture for Querying Dynamic Web Content, ACM Conference on Management of Data (SIGMOD), Philadelphia, PA, June, 1999.

• H. Davulcu, I.V. Ramakrishnan. Enhancing a Genome Database Using XSB Tabled Logic Programming System, Practical Applications of Prolog (PAP), London, 1997.

Workshops, Posters, Demos

• Baral C, Davulcu, H, Nakamura M.,Singh P, Tari, L and Yu, L. "Collaborative Curation of Data from Bio-medical Texts and Abstracts and Its integration", Lecture Notes in Computer Science, Springer-Verlag, Data Integration in the Life Sciences: Second International Workshop, (DILS 2005) San Diego, CA, USA, July 20-22, 2005

• Singh, P., Bhimavarapu R.,Davulcu H., Baral C., Kim S., Liu H., Bittner M., Ramakrishnan I.V., BioLog: A Browser Based Collaboration and Resource Navigation Assistant for BioMedical Researchers,Lecture Notes in Computer Science, Springer-Verlag, Data Integration in the Life Sciences: Second International Workshop, (DILS 2005), CA, USA.

• Davulcu, H., Vadrevu, S., Nagarajan, S., Gelgi F. METEOR: Metadata and Instance Extraction from Object Referral Lists on the Web. International World Wide Web Conference (WWW 2005), Chiba, Japan, 2005. (Poster Presentation)

• Ahmed, S., Chidambaram, D., Davulcu, H., Baral, C. IntEx: A Syntactic Role Driven Protein-Protein Interaction Extractor for Bio-Medical Text, Proceedings of the ACL-ISMB Workshop (BioLink 2005) on Linking Biological Literature,Ontologies and Databases: Mining Biological Semantics, June 2005, Detroit, Association for Computational Linguistics, 54-61.

• Ahmed, S., Chidambaram, D., Davulcu, H, Baral, C. "IntEx: A Syntactic Role Driven Protein-Protein Interaction Extractor for Bio-Medical Text", (Poster) European Conference on Computational Biology (ECCB'05)

• H. Davulcu, S. Vadrevu, S. Nagarajan. OntoMiner: Bootstrapping Ontologies From Overlapping Domain Specific Web Sites. Poster presentation at the 13th International World Wide Web Conference May 17-22 2004, New York, NY.

• H. Davulcu, S. Koduri, S. Nagarajan. DataRover: A Taxonomy Based Crawler for Automated Data Extraction from Data-Intensive Websites. In Fifth International Workshop on Web Information and Data Management (WIDM'03), November, 2003, New Orleans, Lousiana, USA.

• H. Davulcu, S. Vadrevu, S. Nagarajan. OntoMiner: Bootstrapping and Populating Ontologies From Domain Specific Web Sites. In First International Workshop on Semantic Web and Databases, September, 2003, Berlin, Germany.

• G. Yang, W. Tan, S. Mukherjee, I.V. Ramakrishnan, H. Davulcu. On the Power of Semantic Partitioning of Web Documents. In IJCAI'03 Workshop on Information Integration on the Web, August 9-10, 2003, Acapulco, Mexico.

• H. Davulcu, S. Dawson, M. Kifer, L. R. Pokorny, C.R. Ramakrishnan, I.V. Ramakrishnan. Modeling and Analysis of Interactions in Virtual Enterprises. 9th International Workshop on Research Issues on Data Engineering: Information Technology for Virtual Enterprises, RIDE-VE,Sydney, Australia, 1999.

Journals and Magazines

• Vadrevu, S., Gelgi F., Davulcu, H., Information Extraction from Web Pages using Presentation Regularities and Domain Knowledge,. World Wide Web, Vol. 10(2), 2007, pp: 157 - 179.

• Yau S.S., Davulcu H, Mukhopadhyay S, Huang D., Gong H., Singh P., Gelgi F., Automated Situation-Aware Service Composition in Service-Oriented Computing, International Journal of Web Services Research on Services Engineering (JWSR), Vol. 4(4), 2007, pp. 59-82.

• Vadrevu S., Gelgi F., Nagarajan S., Davulcu H., Gathering Metadata and Instances from Object Referral Lists on the Web,. Online Information Review, Vol. 30(3), 2006 , pp. 278-296

• Hung V. Nguyen, H. Davulcu, V. Ramachandran. Boosting Item Findability: Bridging the Semantic Gap between Search Phrases and Item Descriptions International Journal of Intelligent Information Technologies (IJIIT) Vol. 2(3), 2006, pp. 1-20

• H. Davulcu, S. Vadrevu, S. Nagarajan. OntoMiner: Automated Metadata and instance Mining from News Websites. The International Journal of Web and Grid Services (IJWGS), Vol.1(2), 2005, pp. 196-221.

• H. Davulcu, S. Vadrevu, S. Nagarajan, I.V. Ramakrishnan. OntoMiner: Bootstrapping and Populating Ontologies From Domain Specific Web Sites. IEEE Intelligent Systems, Vol. 18(5), 2003, pp. 24-33

Book Chapters

• Nguyen, H., Davulcu, H., 2007, On the Problem of Mining Phrase Definition from Item Descriptions, Advanced Topics in Intelligent information Technologies and Applications, Vol 2, IGI Global.

• Saikat Mukherjee, Hasan Davulcu, Michael Kifer, Guizhen Yang, Pinar Senkul. A Survey of Logic based Approaches to Workflow Modeling in Logics for Emerging Applications of Databases, editors, J. Chomicki, R. van der Meyden, G. Saake Springer-Verlag, LNCS, August' 2003.

Ph.D Dissertation

• My PhD thesis was titled "A Game Logic for Workflows of Non-cooperative Services". You can also download  my defense presentation.

Activities

• PC Member, International Conference on Data Engineering (ICDE 2007), April 15-20, 2007, Istanbul, Turkey.
• PC Member, Very Large Data Bases (VLDB 2005), Aug 30 - Sept 2, 2005, Trondheim, Norway.
• PC Member, International Semantic Web Conference (ISWC 2004), November 7-11, 2004, Japan.
• Co-Chair, Workshop on Information Integration on the Web, VLDB 2004, August 29, 2004, Toronto.
• PC Member, Indian International Conference on Artificial Intelligence (IICAI-05), Dec 20-22, 2005, India.
• PC Member, National Conference on Artificial Intelligence (AAAI-04), July 25-29, 2004, San Jose, California.
• PC Member, International Conference on Data Engineering (ICDE 2004), March 30-April 2, 2004, Boston.
• PC Member, Workshop on Information Integration on the Web , IJCAI 2003, August 9-10, 2003, Mexico.

Entrepreneurial Activities

• Shoppers Helping Shoppers™ from CPU
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• Product Recommendations By JESSICA E. VASCELLARO

visits since 15 April, 1997.