Avigdor Gal

Associate Professor

Faculty of Industrial Engineering & Management

Technion -- Israel Institute of Technology

Visiting Professor, UMIACS, University of Maryland, College Park

Member of the IFIP WG 2.6 on Data Semantics

Recipient of the IBM Faculty Award for 2002-2004

Member of CoopIS (Cooperative Information Systems) Advisory Board

IEEE Senior Member

Avigdor Gal is an Associate professor at the Faculty of Industrial Engineering & Management at the Technion. He received his D.Sc. degree from the Technion - Israel Institute ofTechnology in 1995 in the area of temporal active databases. During his studies, Avigdor has received the Miriam and Aaron Gutwirth Scholarship three years in a row (1993-1995). He has published more than 95 papers in journals (e.g. Journal of the ACM (JACM), ACM Transactions on Database Systems (TODS),  IEEE Transactions on Knowledge and Data Engineering (TKDE), ACM Transactions on Internet Technology (TOIT), and the VLDB Journal), books (Schema Matching and Mapping) and conferences (ICDE, ER, CoopIS, BPM) on the topics of data integration, temporal databases, information systems architectures, and active databases.

Avigdor Gal is the author of the book Uncertain schema Matching. Synthesis Lectures on Data Management March 2011, 97 pages, (doi:10.2200/S00337ED1V01Y201102DTM013)

Avigdor is a member of CoopIS (Cooperative Information Systems) Advisory Board, a member of IFIP WG 2.6, and a recipient of the IBM Faculty Award for 2002-2004. He is a member of the ACM  and a senior member of IEEE. Avigdor served as a Program co-Chair and General Chair of CoopIS, and in various roles in ER and CIKM. He served as a program committee member in SIGMOD, VLDB, ICDE and others. Avigdor is an Area Editor of the Encyclopedia of Database Systems.

Please join us at the 10th International Conference on Business Process Management September 3rd-6th, 2012 Talin, Estonia

Other (present and past) positions:

2001-2004: Associate Editor of ACM SIGMOD Record

Research Summary

Please see here my research interests (Hebrew narration). If you're interested in a graduate degree please contact me by email.

CV

List of Publications

All papers (unless mentioned otherwised) are PDF files.

Contents

• Invited Publications

• Refereed Publications in Journals and Collected Articles
   
• Chapters in Books
   
• Selected Refereed Conference Proceedings
   
• Other Publications

Invited Publications in Journals and Collected Articles

• A. Gal, G. Modica, H. Jamil, and A. Eyal
  Automatic Ontology Matching Using Application Semantics
  AI Magazine, 26(1):21-32, 2005.

• A. Gal, A. Segev, C. Tatsiopoulos, K. Sidiropoulos, and P. Georgiades
  Agent Oriented Data Integration
  Lecture Notes in Computer Science, Springer 2005.

Refereed Publications in Journals and Collected Articles

• S. Wasserkrug, A. Gal , O. Etzion
  Detection of Uncertain Events in Intelligence and Security Informatics
  IEEE Transactions on Knowledge and Data Engineering (TKDE), 20(8):1111-1114, 2008.

• A. Segev, A. Gal
  Enhancing Portability with Multilingual Ontology-Based Knowledge Management
  Decision Support Systems, 45(3):567-584, 2008.

• V. Zadorozhny, L. Raschid and A. Gal
  Scalable Catalog Infrastructure for Managing Access Costs and Source Selection in Wide Area Networks
  International Journal of Cooperative Information Systems (IJCIS), 17(1):77-109, 2008.

• E. Toch, A. Gal, I. Reinhartz-Berger, D. Dori
  A Semantic Approach to Approximate Service Retrieval
  ACM Transactions on Internet Technology (TOIT), 8(1), 2007.

• A. Segev, A. Gal
  Putting Things in Context: A Topological Approach to Mapping Contexts to Ontologies
  Journal on Data Semantics, 9:113-140, 2007.

• J. Eckstein, A. Gal, S. Reiner
  Monitoring an Information Source under a Politeness Constraint (online supplement)
  INFORMS Journal on Computing, (20)1:3-20, 2007.

• C. Domshlak, A. Gal, H. Roitman
  Rank Aggregation for Automatic Schema Matching
  IEEE Transactions on Knowledge and Data Engineering (TKDE), 19(4):538-553, 2007.

• A. Gal
  Why is Schema Matching Tough and What Can We Do About It?
  SIGMOD Record, 35(4):2-5, 2007.

• L. Bright, A. Gal, L. Raschid
  Adaptive Pull-Based Policies for Wide Area Data Delivery
  ACM Transactions on Database Systems (TODS), 31(2):631 - 671, 2006.

• A. Gal
  Managing Uncertainty in Schema Matching with Top-K Schema Mappings
  Journal on Data Semantics, 6:90-114, 2006.

• A. Gal, A. Anaby-Tavor, A. Trombetta, and D. Montesi
  A Framework for Modeling and Evaluating Automatic Semantic Reconciliation
  VLDB Journal, 14(1):50-67, 2005.

• A. Gal, J. Eckstein, and Z. Stoumbos
  Scheduling of Data Transcription in Periodically Connected Databases
  Stochastic Analysis and Applications, 21(5):1021-1058, 2003.

• V. Atluri, A. Gal
  An Authorization Model for Temporal and Derived Data: Securing Information Portals
  ACM Transactions on Information and System Security (TISSEC), 5(1):62 - 94 , 2002.

• A. Gal, J. Eckstein
  Managing Periodically Updated Data in Relational Databases: A Stochastic Modeling Approach
  Journal of the ACM. 48(6): 1141-1183, 2001.

• A. Gal, J. Mylopoulos
  Towards Web-Based Application Management Systems
  IEEE Transactions on Knowledge and Data Engineering (TKDE), 13(4): 683-702, 2001.

• A. Gal, J. Mylopoulos
  Supporting Distributed Autonomous Information Services Using Coordination
  International Journal of Cooperative Information Systems, 9(3):255-282, 2000.

• A. Gal, S. Kerr, J. Mylopoulos
  Information Services for the Web: Building and Maintaining Domain Models
  International Journal of Cooperative Information Systems, 8(4):227-254, 1999.

• A. Gal
  Semantic Interoperability in Information Services: Experiencing with CoopWARE.
  SIGMOD Record, 28(1):68-75, 1999.

• A. Gal, O. Etzion
  A Multi-Agent Update Process in a Database with Temporal Data Dependencies and Schema Versioning.
  IEEE Transactions on Knowledge and Data Engineering, 10(1):21-37, 1998.

• A. Gal, O. Etzion
  Parallel Execution Model for a Temporal Databases.
  International Journal of Computer Systems Science and Engineering, 12(5):317-327, 1997.

• D. Dori, A. Gal, O. Etzion
  Temporal Active Database: a Key to Computer Integrated Manufacturing.
  International Journal of Computer Integrated Manufacturing, 9(2):89-104, 1996.

• A. Gal, O. Etzion
  Maintaining Data Driven Rules in Databases.
  IEEE Computer, 28(1):28-38, Jan. 1995.

• A. Gal, O. Etzion, A. Segev
  Representation of Highly-Complex Knowledge in a Database.
  Journal of Intelligent Information Systems, 3(2):185-203, Mar. 1994.

Chapters in Books

• A. Gal, P. Shvaiko
  Advances in Ontology Matching
  IE/IS-2008-01

• A. Gal, E. Michailovsky, and M. Golani
  Workflow Reconfiguration Using Chains
  R. Meersman, Z. Tari et al (eds.), Lecture Notes in Computer Science 2889, Springer, pp. 18-19, 2003.

• A. Gal
  On Transaction Management in Temporal Databases
  O. Etzion, S. Jajodia and S.Sripada (EDs) - Temporal Databases: Research and Practice, Springer Verlag, pp. 96-114, 1998.

• O. Etzion, A. Gal, A. Segev
  Extended Update Functionality in Temporal Databases
  O. Etzion, S. Jajodia and S.Sripada (EDs) - Temporal Databases: Research and Practice, Springer Verlag, pp. 56-95, 1998.

• A. Gal, O. Etzion, A. Segev
  TALE --- A Temporal Active Language and Execution Model.
  P. Constantopoulos, J. Mylopoulos, Y. Vassiliou (EDs) - Advanced Information Systems Engineering, Springer, pp. 60-81, 1996.

• A. Gal, O.Etzion
  Handling Change Management using Temporal Active Repositories.
  M. Papazoglou (Ed) - Object Oriented: Entity Relationship, Springer Verlag, pp. 378-387, 1995.

• O. Etzion, A. Gal, A. Segev
  Data-Driven and Temporal Rules in PARDES.
  N. Paton, E. Williams (Eds) - Rules in Database Systems, Springer Verlag, pp. 92-108, 1993.

Selected Refereed Conference Proceedings

• Y. Turchin, A. Gal, S. Wasserkrug
  Tuning Complex Event Processing Rules using the Prediction Correction Paradigms
  Proceedings of the 3rd International Conference on Distributed Event-Based Systems (DEBS'2009).
  Nashville, TN, USA,July 2009.

• A. Gal, M.V. Martinez, G.I. Simari, VS Subrahmanian
  Aggregate Query Answering under Uncertain Schema Mappings
  Proceedings of the 25th International Conference on Data Engineering (ICDE 2009), Shanghai, China, March 2009.

• H. Roitman, A. Gal, L. Raschid
  Web Monitoring 2.0: Crossing Streams to Satisfy Complex Data Needs
  Proceedings of the 25th International Conference on Data Engineering (ICDE 2009), Shanghai, China, March 2009.

• A. Eyal and A. Gal
  Self Organizing Semantic Topologies in P2P Data Integration Systems
  Proceedings of the 25th International Conference on Data Engineering (ICDE 2009), Shanghai, China, March 2009.

• A. Marie, A. Gal
  Boosting Schema Matchers
  Proceedings of the 16th International Conference on Cooperative Information Systems (CoopIS 2008), Monterrey, Mexico, Nov 5 - Nov 7, 2008.

• S. Wasserkrug, A. Gal, O. Etzion
  Complex Event Processing Over Uncertain Data
  2nd International Conference on Distributed Event-Based Systems, Rome, Italy, July 2008.

• H. Roitman, A. Gal, L. Raschid
  Satisfying Complex Data Needs using Pull-Based Online Monitoring of Volatile Data Sources
  24th International Conference on Data Engineering (ICDE 2008), Cancun, Mexico, April 2008.

• H. Roitman, A. Gal, L. Raschid
  Capturing Approximated Data Delivery Trade-offs
  24th International Conference on Data Engineering (ICDE 2008), Cancun, Mexico, April 2008.

• A. Marie, A. Gal
  Managing Uncertainty in Schema Matcher Ensembles
  Proceedings of International Conference on Scalable Uncertainty Management (SUM 2007), Washington DC, October 10-12, 2007.

• A. Marie, A. Gal
  On the Stable Marriage of MaximumWeight Royal Couples
  Proceedings of AAAI Workshop on Information Integration on the Web (IIWeb'07), Vancouver, BC, Canada, July 22, 2007.

• M. Shmueli-Scheuer, A. Chaudhary, A. Gal, C. Li
  Communication-Efficient Query Answering with Quality Guarantees in Client-Server Applications
  Proceedings of the 10th International Workshop on the Web and Databases (WebDB'2007), Beijing, Chaina, June 2007.

• A. Segev and A. Gal
  Puzzling It Out: Supporting Ontology Evolution with Applications to eGovernment
  Proceedings of IJCAI-Workshop on Modeling and Representation in Computational Semantics (MRCS-2007). Hyderabad, India, January 7, 2007.

• I. Yahav, A. Gal and N. Larson
  Bid-Based Approach for Pricing Web Services
  Proceedings of the 14th International Conference on Cooperative Information Systems (CoopIS 2006). Montpellier, France, Nov 1 - Nov 3, 2006.

• H. Roitman, A. Gal and L. Raschid
  Profile Based Online Data Delivery
  Proceedings of the VLDB2006 Ph.D. Workshop, Seoul, Korea, Sept 11, 2006.

• M. Golani and A Gal
  Optimizing Exception Handling in Workflows using Process Restructuring
  Proceedings of the fourth Conference on Business Process Modeling (BPM'06). Vienna, Austria, September 5-7, 2006.

• A. Segev and A. Gal
  Ontology Verification Using Contexts
  Proceedings of the 2nd Workshop on Contexts and Ontologies: Theory, Practice and Applications (C&O'2006). Riva del Garda, Italy, August 28, 2006.

• H. Roitman, A. Gal and L. Raschid
  ProMo - A Scalable and Efficient Framework for Online Data Delivery
  Proceedings of NGITS '2006 - The 6th Int. workshop on Next Generation Information Technologies and Systems, Kibbutz Shefayim, Israel, July 2006.

• E. Toch, I. Reinhartz-Berger, A. Gal and D. Dori
  OPOSSUM: Bridging the Gap Between Web Services and the Semantic Web
  Proceedings of NGITS '2006 - The 6th Int. workshop on Next Generation Information Technologies and Systems, Kibbutz Shefayim, Israel, July 2006.

• S. Wasserkrug, A. Gal, and O. Etzion
  A Taxonomy and Representation of Sources of Uncertainty in Composite Event Systems
  Proceedings of NGITS '2006 - The 6th Int. workshop on Next Generation Information Technologies and Systems, Kibbutz Shefayim, Israel, July 2006.

• Y. Ben-Chaim and A. Gal - .
  Second Order Snapshot-Log Relations: Supporting Multi-Directional Database Replication using Asynchronous Snapshot Replication
  Proceedings of NGITS '2006 - The 6th Int. workshop on Next Generation Information Technologies and Systems, Kibbutz Shefayim, Israel, July 2006.

• A. Gal and A. Segev
  Putting Things in Context: Dynamic e-Government Re-Engineering using Ontologies and Context
  Proc. Workshop on E-Government: Barriers and Opportunities at WWW'2006. Edinburgh, Scotland, June 2006.

• H. Roitman and A. Gal
  OntoBuilder: Fully Automatic Extraction and Consolidation of Ontologies from Web Sources using Sequence Semantics
  Proc. International Conference on Semantics of a Networked World: Semantics of sequence and time dependent data, Munich, Germany, March 30, 2006.

• V. Zadorozhny, L. Raschid, A. Gal, Q. Ye, H. Murthy
  Using Non-random Associations for Predicting Latency in WANs
  Proceedings of the 6th International Conference on Web Information Systems Engineering (WISE 2005). New York City, New York, November 20-22 2005.

• E. Toch, A. Gal, D. Dori
  Automatically Grounding Semantically-enriched Conceptual Models to Concrete Web Services
  Proceedings of the 24th International Conference on Conceptual Modeling (ER'05). Klagenfurt, Austria, October 24-28, 2005

• S. Berkovsky, Y. Eytani, A. Gal
  Measuring the Relative Performance of Schema Matchers
  Proceedings of the 2005 IEEE/WIC/ACM International Conference on Web Intelligence (WI 2005). Compiegne, France, September 19-22, 2005

• M. Golani, A. Gal
  Flexible Business Process Management using Forward Stepping and Alternative Paths
  Proceedings of the third Conference on Business Process Modeling (BPM'05). Nancy, France, September 6-8, 2005

• S. Wasserkrug, A. Gal, O. Etzion
  A Model for Reasoning with Uncertain Rules in Event Composition Systems
  Proceedings of the 21st Conference on Uncertainty in Artificial Intelligence (UAI-2005). Edinburgh, Scotland, July 26-29, 2005

• A. Segev, A. Gal
  Putting Things in Context: A Topological Approach to Mapping Contexts and Ontologies
  Proceedings of the AAAI Workshop on Contexts and Ontologies: Theory, Practice and Applications. Pittsburgh, July 9-13, 2005

• V. Zadorozhny, A. Gal, L. Raschid, Q. Ye
  Wide Area Performance Monitoring Using Aggregate Latency Profiles
  Proceedings of the International Conference on Web Engineering (ICWE 2004). Munich, July 28-30, 2004

• O. Shehory, G. Koifman, A. Gal
  Negotiation-Based Price Discrimination for Information Goods
  Proceedings of the Third International Joint Conference on Autonomous Agents and Multi Agent Systems (AAMAS'04). New York City, July 19-23 July, 2004

• S. Wasserkrug, O. Etzion, A. Gal
  Inference and Prediction of Uncertain Events in Active Systems: A Language and Execution Model
  Proceedings of the VLDB 2003 PhD Workshop, CEUR Workshop Proceedings 76 Technical University of Aachen (RWTH) 2003

• A. Anaby-Tavor, A. Gal, A. Trombetta
  Evaluating matching Algorithms: the Monotonicity Principle
  Proceedings of the IJCAI Workshop on Information Integration on the Web

• A. Gal, A. Trombetta, A. Anaby-Tavor, D. Montesi
  A Model for Schema Integration in Heterogeneous Databases
  Proceedings of the International Database Engineering & Applications Symposium, IDEAS'03, July 16-18, 2003, Hong Kong, China. IEEE Computer Society 2003

• L. Raschid, H.-F. Wen, A. Gal, V. Zadorozhny
  Latency Profiles: Performance Monitoring for Wide Area Applications
  Proceedings of the Third IEEE Workshop on Internet Applications (WIAPP `03), San Jose, CA, June 23-24 2003

• G. Modica, A. Gal, H.M. Jamil
  The Use of Machine-Generated Ontologies in Dynamic Information Seeking
  Proc. Sixth International Conference on Cooperative Information Systems (CoopIS 2001), Trento, Italy, September 2001.

• A. Gal, V. Atluri
  An Authorization Model for Temporal Data
  Proc. 7th ACM Conference on Computer and Communication Security, pp. 144-153, Athens, Greece, November 2000.

• A. Gal
  Obsolescent Materialized Views in Query Processing of Enterprise Information Systems
  Proc. Eighth International Conference on Information and Knowledge Management (CIKM'99), pp. 367-374, Kansas City, Missouri, November 1999.

• A. Gal, D. Montesi
  Inter-Enterprise Workflow Management Systems
  Proc. 10th International Conference and Workshop on Database and Expert Systems Applications (DEXA '99), pp. 623-627, Florence, Italy, September 1999.

• A. Gal, N.H. Minsky, V. Ungureanu
  Regulating Agent Involvement in Inter-Enterprise Electronic Commerce
  Proc. 19th International Conference on Distributed Computing Systems (ICDCS '99), pp. 41-46, Austin, TX, June 1999.

• S. Kerr, A. Gal, J. Mylopoulos
  Information Services for the Web: Building and Maintaining Domain Models
  Proc. Third IFCIP International Conference on Cooperative Information Systems (CoopIS 98), pp. 4-13, NYC, NY, August 1998.
  Best-Paper Award

• A. Gal
  Handling Constantly Changing Metadata
  Proc. Second IEEE Metadata Conference, Silver Spring, Maryland, September 1997.

• A. Gal
  Modelling Cooperation among Information Systems using Control Elements
  Proc. NGITS '97 - Int. workshop on Next Generation Information Technologies and Systems, pp. 125-132, Jerusalem, Israel, June 1997.

• J. Mylopoulos, A. Gal, K. Kontogiannis, M. Stanley
  A Generic Integration Architecture for Cooperative Information Systems
  Proc. First IFCIS International Conference on Cooperative Information Systems (CoopIS 96), pp. 208-217, Brussels, Belgium, June 1996.

• A. Gal, D. Dori
  Combining Simultaneous Values and Temporal Data Dependencies
  Proc. Third International Workshop on Temporal Representation and Reasoning (TIME'96), pp. 112-119, Key West, Florida, May 1996.

• A. Gal, O. Etzion, A. Segev
  A Language for the Support of Constraints in Temporal Active Databases.
  Proc. ILPS'95--Workshop on Constraints, Databases and Logic Programming, pp. 42-58, Portland, Oregon, December 1995.

• A. Gal, O. Etzion
  CODES - A Design Tool for Computerized System.
  Proc. NGITS '95 - Int. workshop on Next Generation Information Technologies and Systems, pp. 116-123, Naharia, Israel, June 1995.

Other Publications

• A. Gal
  TALE - A Temporal Active Language and Execution Model.
  D.Sc. thesis, Technion - Israel Institute of Technology, July 1995.

• M. Lincoln, A. Gal
  PNav: Process Navigator for the Design of New Business Process Models
  Proc. of BPM Demonstration Track 2010, Hoboken, USA, September 14-16, 2010, Vol. 615 CEUR-WS.org.

• A. Gal, J. Mylopoulos
  Information Services: Coping with the Information Crisis.
  Guest Editors' Introduction, Inernational Journal of Cooperative Information Services, 7(2&3):171-121, 1998.

• A. Gal , O. Etzion
  New Perspectives in Temporal Databases.
  ISE-TR-93-6.

• O. Etzion, A. Gal
  TAPUZ: The Design of a Second Generation Active Database.
  ISE-TR-93-7.

• A. Gal , O. Etzion
  High-Level Change Management using Temporal Agents.
  ISE-TR-93-8.

• A. Gal, J. Eckstein
  Managing Periodically Updated Data in Relational Databases: A Stochastic Modeling
  Approach
  RRR-34-2001.

• A. Gal, J. Eckstein
  Scheduling of Data Transcription in Periodically Connected Databases
  RRR-25-2001.

• A. Gal, G. Modica, and H. Jamil
  OntoBuilder: Fully Automatic Extraction and Consolidation of Ontologies from Web Sources .
  Demo presentation, October 2003.

• A. Segev, A. Gal
  eGovernment Policy Evaluation Support using Multilingual Ontologies
  Proceedings of the eGov-Interop'05 Annual Conference. Geneva, February 23-24, 2005. 

Projects

OntoBuilder: Automatic schema matching using ontological constructs.

QUALEG: Quality of Service and Legitimacy in eGovernment. Read about European-American collaboration in eGovernment here.

TerreGov: Impact of eGovernment on Territorial Government Services

COCOON: Supporting health care professional in reducing risk management in daily practices

Nebula: Digital Resources Profiling for Wide Area Applications.

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