Vagelis Hristidis (official name: Evangelos Christidis), Assistant Professor

Biographical Sketch

CV

Research Interests

Classes

Projects

Publications

Presentations

Links

School of Computing and Information Sciences office: ECS 384 Florida International University office tel.: (305) 348-6500 University Park, ECS 384 fax: (305) 348-3549 11200 S.W. 8th Street email: Miami, FL 33199

Biographical Sketch

I received my BS in Electrical and Computer Engineering at the National Technical University of Athens in 1999. Then, I moved to San Diego, California, where I received my M.Sc. and Ph.D. in Computer Science in 2000 and 2004 respectively, at the Computer Science and Engineering Department of the University of California, San Diego (UCSD). The area of my expertise is database systems. My advisor was Yannis Papakonstantinou.

Curriculum Vitae.

Research Interests

	information discovery in various domains including bibliographic, clinical and biological databases
	keyword search in relational and semi-structured databases
	performance and semantics of ranked queries
	web search
	XML storage and parsing

Classes

· Advanced Database Systems (COP-6727) Fall 2004

· Principles of Database Management Systems (COP-5993) Spring 2005

· Principles of Database Management Systems (COP-5725) Fall 2005

· Data Structures (COP-3530) Spring 2006

· Database Management (COP-4540) Summer A 2006

· Database Management (COP-4540) Fall 2006

· Advanced Topics in Information Retrieval (COP-6990) Fall 2006

· Data Structures (COP-3530) Spring 2007

· Advanced Topics in Information Retrieval (COP-6776) Summer A 2007

· Database Management (COP-4540) Fall 2007

· Principles of Database Management Systems (COP-5725) Fall 2007

· Advanced Database Systems (COP-6727) Spring 2008

· Database Management (COP-4540) Summer A 2008

Students

1. Ramakrishna Varadarajan, PhD student

2. Fernando Farfan, PhD student

3. Oscar Valdivia, PhD student

Projects

Web Search

	ObjectRank
	XKeyword
	PREFER

Publications

Conferences/Workshops

1. K.Saleem, S. Luis, Y. Deng, S-C. Chen, V. Hristidis, T. Li. Towards a Business Continuity Information Network for Rapid Disaster Recovery. 9th Annual International Conference on Digital Government Research 2008

2. Muhammed Miah, Gautam Das, Vagelis Hristidis, Heikki Mannila. Standing Out in a Crowd: Selecting Attributes for Maximum Visibility. IEEE ICDE 2008 (full paper, short presentation, acceptance rate 19%)

3. Ian De Felipe, Vagelis Hristidis, Naphtali Rishe. Keyword Search on Spatial Databases. IEEE ICDE 2008 (full paper, long presentation, acceptance rate 12%)

4. Ramakrishna Varadarajan, Vagelis Hristidis, Louiqa Raschid. Explaining and Reformulating Authority Flow Queries. IEEE ICDE 2008 (full paper, short presentation, acceptance rate 19%)

5. Vagelis Hristidis, Fernando Farfán, Redmond P. Burke, Anthony F. Rossi, Jeffrey A. White. Information Discovery on Electronic Medical Records. National Science Foundation Symposium on Next Generation of Data Mining and Cyber-Enabled Discovery for Innovation (NGDM) 2007 (acceptance rate 28%)

6. Fernando Farfan, Vagelis Hristidis, Raju Rangaswami. Beyond Lazy XML Parsing. 18th International Conference on Database and Expert Systems Applications, DEXA 2007 (acceptance rate 32%)

7. Vagelis Hristidis, Peter J. Clarke, Nagarajan Prabakar, Yi Deng, Jeffrey A. White, Redmond P. Burke. A Flexible Approach for Electronic Medical Records Exchange. International Workshop on Health Information and Knowledge Management (HIKM), in conjunction with ACM CIKM, 2006

8. Ramakrishna Varadarajan, Vagelis Hristidis: A System for Query-Specific Document Summarization. ACM CIKM 2006 (acceptance rate 15%)

9. Yi Deng, S. Masoud Sadjadi, Peter Clarke, Chi Zhang, Vagelis Hristidis, Raju Rangaswami, Nagarajan Prabakar. A Communication Virtual Machine. International Computer Software and Applications Conference (COMPSAC) 2006 (acceptance rate 31%)

10. Gautam Das, Vagelis Hristidis, Nishant Kapoor, S. Sudarshan. Ordering the Attributes of Query Results. ACM SIGMOD 2006 (acceptance rate 13%)

11. Peter J. Clarke, Vagelis Hristidis, Yingbo Wang, Nagarajan Prabakar and Yi Deng. A Declarative Approach for Specifying User-Centric Communication. Symposium on Collaborative Technologies and Systems (CTS), 2006

12. Ken Pu, Vagelis Hristidis, Nick Koudas. A Syntactic Rule Based Approach to Web Service Composition. IEEE ICDE 2006 (acceptance rate 19%)

13. Andrey Balmin, Vagelis Hristidis, Yannis Papakonstantinou: Authority-Based Keyword Queries in Databases using ObjectRank (extended version). VLDB 2004 (acceptance rate 16%)

14. Surajit Chaudhuri, Gautam Das, Vagelis Hristidis, Gerhard Weikum: Probabilistic Ranking of Database Query Results. VLDB 2004 (acceptance rate 16%)

15. Vagelis Hristidis, Luis Gravano, Yannis Papakonstantinou: Efficient IR-Style Keyword Search over Relational Databases. VLDB 2003 (acceptance rate 14%)

16. Vagelis Hristidis, Yannis Papakonstantinou, Andrey Balmin: Keyword Proximity Search on XML Graphs (extended version). IEEE ICDE 2003 (acceptance rate 13%)

17. Vagelis Hristidis, Yannis Papakonstantinou: DISCOVER: Keyword Search in Relational Databases. VLDB 2002 (acceptance rate 16%)

18. Vagelis Hristidis, Michalis Petropoulos: Semantic Caching of XML Databases. WebDB 2002

19. Vagelis Hristidis, Nick Koudas, Yannis Papakonstantinou: PREFER: A System for the Efficient Execution of Multi-parametric Ranked Queries. ACM SIGMOD 2001 (acceptance rate 15%)

Journals

20. Fernando Farfan, Vagelis Hristidis, Raju Rangaswami. 2LP: A Double-Lazy XML Parser. Elsevier Information Systems, to appear

21. Man Lung Yiu, Nikos Mamoulis, Vagelis Hristidis. Extracting k Most Important Groups from Data Efficiently. Elsevier Data & Knowledge Engineering (DKE), to appear.

22. Yi Deng, S. Masoud Sadjadi, Peter J. Clarke, Vagelis Hristidis, Raju Rangaswami, and Yingbo Wang. CVM - A Communication Virtual Machine. The Elsevier Special Issue of the Journal of Systems and Software (JSS), 2008.

23. Ramakrishna Varadarajan, Vagelis Hristidis, Tao Li: Beyond Single-Page Web Search Results, IEEE TKDE 2008

24. Vagelis Hristidis, Heasoo Hwang, Yannis Papakonstantinou. Authority-Based Keyword Search in Databases. ACM Trans. Database Syst (TODS) 2008

25. Yufei Tao, Vagelis Hristidis, Dimitris Papadias, Yannis Papakonstantinou. Branch-and-Bound Processing of Ranked Queries. Elsevier Information Systems Volume 32, Issue 3, May 2007, Pages 424-445

26. Surajit Chaudhuri, Gautam Das, Vagelis Hristidis, Gerhard Weikum: Probabilistic Information Retrieval Approach for Ranking of Database Query Results. ACM Trans. Database Syst (TODS) 31, 3 (Sep. 2006), 1134-1168

27. Vagelis Hristidis, Nick Koudas, Yannis Papakonstantinou, Divesh Srivastava. Keyword Proximity Search in XML Trees. IEEE TKDE, April 2006 (Vol. 18, No. 4) pp. 525-539

28. Vagelis Hristidis, Yannis Papakonstantinou: Algorithms and Applications for answering Ranked Queries using Ranked Views. VLDB Journal, Volume 13 , Issue 1, January 2004

Book Chapters

29.Vagelis Hristidis, Fernando Farfán, Redmond P. Burke, Anthony F. Rossi, Jeffrey A. White. Challenges for Information Discovery on Electronic Medical Records. Book details: Next Generation of Data Mining. CRC - Taylor & Francis. Editors: Hillol Kargupta, Jiawei Han, Philip Yu, Rajeev Motwani, Vipin Kumar. 2008

Demos/Posters/Short Papers

30. Fernando Farfán, Vagelis Hristidis, Anand Ranganathan, Redmond P. Burke. Ontology-Aware Search on XML-based Electronic Medical Records. Poster Paper, IEEE ICDE 2008 (acceptance rate 31%)

31. Vagelis Hristidis, Oscar Valdivia, Michalis Vlachos, Philip Yu. A System for Keyword Search on Textual Streams. Short Paper, SIAM Conference on Data Mining (SDM) 2007 (acceptance rate 25%)

32. Nishant Kapoor, Gautam Das, Vagelis Hristidis, S. Sudarshan, Gerhard Weikum. STAR: A System for Tuple and Attribute Ranking of Query Answers. Demo paper, ICDE 2007

33. Vagelis Hristidis, Oscar Valdivia, Michalis Vlachos, Philip S. Yu: Continuous Keyword Search on Multiple Text Streams. Poster paper, ACM CIKM 2006 (acceptance rate 25%)

34. Ramakrishna Varadarajan, Vagelis Hristidis, Tao Li: Searching the Web Using Composed Pages. Poster paper, ACM SIGIR 2006

35. Heasoo Hwang, Vagelis Hristidis, Yannis Papakonstantinou. ObjectRank: A System for Authority-based Search on Databases. Demo paper, ACM SIGMOD 2006

36. Medha Bhadkamkar, Fernando Farfan, Vagelis Hristidis, and Raju Rangaswami. Storing Trees on Disk Drives. Proceedings of the File and Storage Technologies WiP, 2005.

37. Ramakrishna Varadarajan, Vagelis Hristidis: Structure-Based Query-Specific Document Summarization. Poster paper, CIKM 2005

38. Andrey Balmin, Vagelis Hristidis, Nick Koudas, Yannis Papakonstantinou, Divesh Srivastava, Tianqiu Wang: A System for Keyword Search on XML Databases. Demo paper, VLDB 2003

Technical Reports

39. Medha Bhadkamkar, Vagelis Hristidis, Raju Rangaswami. Efficient Native XML Storage. Florida International University Technical Report FIU-SCIS -2005-04-01, 2005

40. Yi Deng, S. Masoud Sadjadi, Peter Clarke, Chi Zhang, Vagelis Hristidis, Raju Rangaswami, and Nagarajan Prabakar. A communication virtual machine. Florida International University Technical Report FIU-SCIS-2006-02, 2006.

41. Vagelis Hristidis, Yannis Papakonstantinou: Merging results from Multi-parametric Ranked Queries. UCSD Technical Report, 2001

Professional Activities

· Finance Chair, IEEE International Conference on Data Mining (ICDM) 2009

· Proceedings Chair, IEEE International Conference on Data Engineering (ICDE) 2009

· Co-Chair, DBRank 2008, at ICDE 2008

· Proceedings Co-Chair, SIGMOD 2006

· Publicity Chair, CIKM 2006

· Program Committee Member:

o Proceedings of VLDB Endowment (replacement of VLDB Conference Proceedings) 2008-2009

o IEEE International Conference on Data Engineering (ICDE) 2009

o IEEE International Conference on Data Mining (ICDM) 2008

o COMAD 2008 (International Conf on Management of Data)

o PIKM 2008 (Ph.D. Workshop in CIKM 2008)

o 3rd International Workshop on XML Data Management Tools and Techniques (XANTEC '08), in conjunction with DEXA 2008

o 19th International Conference on Database and Expert Systems Applications (DEXA) 2008

o DBRank 2007, in conjunction with ICDE 2007

o Workshop on Advances in Preference Handling in conjunction with VLDB 2007

o PIKM 2007 (Ph.D. Workshop in CIKM 2007)

o WebDB 2006 in conjunction with SIGMOD

o ACM Southeast Conference 2006

o Workshop on Advances in Preference Handling 2006

· Reviewer: ACM TODS, ACM SIGMOD, VLDB, ICDE, TKDE, PODS, WebDB, WWWJ, Information Sciences journal, VLDB Journal, Knowledge and Information Systems KAIS journal, Journal of Data and Knowledge Engineering, Elsevier, USENIX, Distributed and Parallel Databases, TKDD, Information Processing Letters (IPL), TOIS, Journal of Computer Science and Technology (JCST), Elsevier Information Systems, MKP book

Presentations

1. Towards a Business Continuity Information Network for Rapid Disaster Recovery. 9th Annual International Conference on Digital Government Research 2008, Montreal

2. Keyword Search on Spatial Databases. IEEE ICDE 2008, Cancun

3. Information Discovery on Electronic Medical Records. National Science Foundation Symposium on Next Generation of Data Mining and Cyber-Enabled Discovery for Innovation (NGDM) 2007, Baltimore, 2007

4. A Flexible Approach for Electronic Medical Records Exchange. International Workshop on Health Information and Knowledge Management (HIKM), Arlington, 2006

5. Probabilistic Ranking of Database Query Results, at VLDB 2004, Toronto

6. Efficient IR-style Keyword Search over Relational Databases, at VLDB 2003, Berlin

7. Keyword Search In Databases, at Microsoft Research, 7/2003

8. XKeyword's presentation, at IEEE ICDE 2003, Bangalore, India

9. Random Walk in Stuctured Databases, at UCSD Research Seminar, 2003

10. Thesis Proposal, at UCSD, 2002

11. DISCOVER's presentation, at VLDB 2002, Hong Kong.

12. XCacher's presentation, at WebDB 2002, Madison, WI.

13. PREFER's presentation, at ACM SIGMOD 2001, Santa Barbara, CA.

OTHERS

· DBRank’08 Second International Workshop on Ranking in Databases (2008). In Conjunction with ICDE 2008.