660 McBryde Hall, Blacksburg, VA 24061 540 231 6450 540 231 6075 athman@cs.vt.edu

Athman Bouguettaya Associate Professor Department of Computer Science, Virginia Tech Director of Virginia Tech's E-Commerce & E-Government Research Lab

Research Teaching Grants Publications Current Graduate Students Professional Activities

Research

Web Service Management System (WSMS)

Over the years, numerous applications have been developed for effcient data access and reuse. These data-centric solutions were based on the premise of an interactive Web where users involvement was necessary for virtually any Web-based transaction. In recent years, Web-related research has shifted from how to access such Web content to exploring new forms of what can be published and accessed in the Web. Application reusability is key to enabling this paradigm shift. TheWeb that had been essentially a repository of static content has started a steady evolution to become a vibrant environment where applications can be automatically invoked by other Web clients. These advances have brought revolutionary changes in building distributed applications with the introduction of the service oriented computing (SOC) paradigm. The service-oriented Web represents an attractive paradigm for tomorrow's interactions spanning a wide range of domains from e-economy to e-science and e-government.

Enabling the service Web requires a comprehensive infrastructure to develop, deploy, publish, discover, compose, monitor, and optimize access to Web services. Simply put, materializing the service Web necessitates a Web Service Management System (WSMS) that provides for Web services what DBMSs has provided for data. In such a system, Web services would be treated as first-class objects that can be manipulated as if they were pieces of data. Services are inherently different from data. First, data in DBMSs are passive objects with a set of known properties, e.g., structure, value, functional dependencies, integrity constraints. Web services are active and autonomous entities that have a function rather than a value. Moreover, unlike data in DBMSs, Web services have a run-time behavior that may not be precisely known when they are invoked. Second, accessing a service on the Web is potentially far more complex than retrieving data from a DBMS. To access a Web service, the service requester must search in one or more service registries, understand the different services' syntactic and semantic descriptions, select the services providing the requested functionality, understand their communication protocols, and finally engage in a sequence of message exchange with the selected services. In more complex scenarios, requests for services may require the composition of several Web services that may span different administrative domains. A WSMS must hide these complexities and enable users to access services transparently as they would access data in a DBMS. My research group at the ECEG Research Lab is focused on defining and developing a comprehensive WSMS.

Current Research Topics

• Service Optimization

Service optimization research is geared towards building a formal framework for enabling Web service query optimization. The objective is to provide a solid foundation upon which reasoning about service queries can be performed, allowing the development of (so far lacking) theories and algorithms to efficiently query Web services. Note that the focus of our work is not on the design of service query languages. Instead, we provide the fundamental support for enabling the definition of such languages. In this regard, we are working to address some of the foundational issues regarding optimization in the emerging field of service science.

• Service Composition

Web service composition refers to the process of combining several Web services to provide a value-added service. It is emerging as the technology of choice for building cross-organizational applications on the Web. Web service composition has recently taken a central stage as an emerging research area. Standardization efforts are under way for supporting Web service composition (e.g., BPEL4WS). However, these techniques and standards provide little or no support for the semantics of participant services, their messages, and interactions. Additionally, they generally require dealing with low level programming details which may lead to unexpected failures at run-time. We are working on presenting novel approaches for the automatic composition of Web services on the envisioned service Web.

• Service Mining

In the post-genomic age, there are currently two main challenges facing the bioinformatics research community, namely functional discovery and data integration. Time consuming development of customized interfaces is needed so that different models can interoperate. The integration of models through software applications will ultimately allow us to establish dynamic models that can be used for various medical experiments. While such applications have been investigated, none has been based on modeling biological entities using Web services. We are working on using a Web service mining framework so that models can be mined for the purpose of discovering biological and molecular interactions and reactions.

• Service Trust

A plethora of Web services competing in offering similar functionalities are expected for the new ``service Web". A key requirement then is to provide mechanisms for the quality access and retrieval of services. In essence, the major challenge lies in providing a trust framework for enabling the selection and composition of Web services based on trust parameters. The fundamental rationale behind the need for trust is the necessity to interact with unknown entities. The lack of a global monitoring system for the service-oriented environment exacerbates the problem of trust. By definition, Web services are autonomous (i.e., provided by independent service providers), highly volatile (i.e., low reliability), and a priori unknown (i.e., new or no prior history). Web services can have no particular behavior mandated on them and are highly volatile as they are subject to frequent fluctuations during their lifetime (e.g., unavailability, changes in quality and performance). Hence, resolving trust issues is a determining key to the selection of services. We are working on developing a comprehensive trust framework for service-oriented environments.

• Service Change Management

Service-Oriented Enterprises (SOEs) are essentially composed Web services that are outsourced from autonomous Web service providers. Changes may be very common and frequent due to the highly dynamic business environment involving different service providers. In this regard, change management is a paramount research issue in enabling the deployment of service oriented enterprises. There are two types of changes, including top-down changes (initiated at the SOE level) and bottom-up changes (initiated at the Web service level). Manually handling these changes demands intensive manual work. We are working to automate the process of detecting, propagating, reacting, and validating changes in a SOE.

• Mobile Services

Wireless communication has several advantages over traditional wireline communication. In wireless environments, data is transmitted on the air, which does not require physical media be built between any two users before communication takes place. Furthermore, mobile users in wireless environments can access information while on the move. At Eceg, we are working on improving wireless data access efficiency through different access methods. The work involves investigating uniform and nonuniform access patterns to assess the performance of the proposed access methods. Moreover, exploration of the use of range queries, varied-size data, and other data distributions are also being studied.

Research Projects

E-Government: WebSenior

The healthcare needs of senior citizens are expected to surge as baby-boomers start retiring. As a result, this trend will put tremendous stress on the already stretched and cost spiraling healthcare systems. Of special interest in this project is senior citizens healthcare. Senior citizens are challenged in ways fundamentally different from the general population. Receiving services in a convenient way is not a matter of choice for them, but of necessity. Failing health accompanied with limited mobility may force senior citizens into unhealthy choices. Recent advances in Web standards and technologies offer a cost effective leverage to maintain and use large healthcare information systems. New studies suggest that senior citizens are now the fastest growing group of World Wide Web users. This pilot project, a collaborative effort between Virginia Tech and the Virginia Department for the Aging (VDA), focuses on the development of a Web service middleware infrastructure. The infrastructure will enable the seamless interoperation of the VDA's autonomous information systems based on new Web service standards.

E-Commerce: WebBIS

This project looks at the database and Web services support for electronic commerce. As proof of concept, we have used Web services composition in defining virtual enterprises. We have also deployed a novel approach for the preservation of trade secrets in a Business-to-Business (B2B) environment that involves trade among competitors. In B2B collaborations information may be exchanged of a sensitive nature, forming a business trade secret. We use a Peer-to-Peer (P2P) approach for preserving trade secrets in B2B interactions. We introduce a set of techniques based on data perturbation for preserving data privacy.

Teaching

• Fall 06:  CS 5614 - Database Management Systems

Grants

• National Science Foundation (NSF), Cyber-Trust Program, CT-SG: Reputation Management for Web
  Services". 2006-2009.
• National Institutes of Health (NIH) Integrated Advanced Information Management Systems (IAIMS)
  program: Building Web Services Infrastructure for Senior Citizens, 2003-2006.
  This project was the only one successful in its program category.
• ARC Linkage International (Australia): Privacy-preserving Web Services Composition, 2004-2005.
• Internet Technology Innovation Center (ITIC): Development and Deployment of Emergency Response
  and Dissemination Systems (ERDS), 2003.
• Commonwealth Information Security Center (CISC), Enforcing Security and Privacy in Next Generation
  Digital Government Applications. 2001-2004.
• Tobacco Settlement Foundation (State of Virginia), Youth Smoking Prevention, 2002-2003.
• National Science Foundation (NSF), Distributed Ontologies for Middleware Support of State and Federal
  Social Services, 2000-2004.
• Virginia Tech's Footprint Grant Scheme, (with D. Kafura). 2001-2004.
• Science Applications International Corporation (SAIC), Web-based Workflow Management Systems, 2001-2002.
• Sun Microsystems AEG Equipment Research Grants, Design of Web-based Virtual Enterprise, 2000-2001.
• HP University Grant, Building E-Services Using E-speak. 2000-2001.
• Usenix Scholar Program 2000-2001.
• International Travel Supplemental Grants: Virginia Tech, 2001.
• International Travel Supplemental Grants: Virginia Tech, 2000.
• Informix Software}: Research Grant Program, Departmental software license, 2000.
• IBM DB2 Software: IBM Grant Program, Departmental software license, 2000.
• International Travel Supplemental Grants: Virginia Tech, 1999.
• ARC SPIRT: Self-describing transactions operating in an open, heterogeneous and distributed environment, QUT,
  , 1999-2001.  Industrial Partner, Star Systems.
  This grant was the  largest grant awarded among all grants awarded to QUT for the 1999 round.
• Large ARC Grant, An Extensible Framework for Interoperable Databases, 1995-1997. This grant was the largest grant awarded among all 9 grants awarded
  to QUT for the 1995 round.
• Targeted Institutional Links for Research and Development With Japan (DEET R&D) : Interoperability of
  Information Systems, 1994-1995.
• Small ARC Grant, Access to Database from Mobile Hosts. 1998.
• Seeding Grant, Contracts and Roles for Distributed Workflow Environments, 1998.
• QACHE Grant, An Extensible Framework for Interoperable Databases, 1996-1997.
• QUT/Industry Collaborative Research Grant, Development of a Testbed for Data Access over Satellite Channels,
  Industry Partner: Boeing Australia Limited, 1999.
• Pilot Research Grant, Querying Databases in Satellite-based Environments, 1999.
• QUT New Researcher Scheme, Querying Information in Large Networks of Information Sources, 1998.
• QUT New Researcher Scheme: Co-database Support for Interoperability, 1993-1994.
• QUT New Researcher Scheme: Clustering of Multidimensional Data, 1994-1995.
• QUT New Researcher Scheme: Schema Evolution Consistency in Object-Oriented Databases, 1994-1995.

Publications (DBLP Entry)

Book (Authored)

1. Interconnecting Heterogeneous Information Systems, A. Bouguettaya, B. Benatallah, and A. K. Elmagarmid Kluwer Academic Publishers, Boston (USA), ISBN 0-7923-8216-1, 1998.

Book (Edited)

2. 14th IEEE International Workshop on Research Issues on Data Engineering Web Services for ECommerce
   and E-Government Applications,Bouguettaya and B. Benatallah IEEE Computer Society,
   Los Alamitos, California, 2004. ISBN 0-7695-2095-2.
3. Databases and Ontologies, A. Bouguettaya, Kluwer Academic Publishers, Boston (USA). ISBN 0-7923-8412-1, 1999.

Book Chapters

4. SLINK and UPGMA Clustering of High Dimensional Data, A. Bouguettaya and Y. Qi, Encyclopedia of Computer Science and Technology, Marcel Dekker, Inc. 2005. Submitted.
5. Enforcing Privacy on the Semantic Web, A. Rezgui, A. Bouguettaya, and Z. Malik, Information Security Policies and Actions in Modern Integrated Systems, Editors: Carlo Bellettini and Maria Grazia Fugini, Idea Group Publishing, USA. 2004.
6. Internet Computing Support for Digital Government, A. Bouguettaya, A. Rezgui, B. Medjahed, and M. Ouzzani Practical Handbook of Internet Computing, Editor: Munindhar Singh, CRC Press USA, 2004. Invited.
7. Adaptive Web-based Database Communities, A. Bouguettaya, B. Benatallah, B. Medjahed, M. Ouzzani, and L. Hendra,
   Information Modeling for Internet Applications}, Editor: Patrick van Bommel, Idea Group Publishing, USA. 2002.
8. Ubiquitous Access to Web Databases, A. Bouguettaya, B. Medjahed, M. Ouzzani, and Y. Meng, Web-Powered Databases, Editor: David Taniar, Idea Group Publishing, USA. 2002.
9. Supporting Data and Services Access in Digital Government Environments, A. Bouguettaya, M. Ouzzani, B. Medjahed, A. Elmagarmid, Digital Government Technologies, Kluwer Academic Press, 2002.
10. Wards and UPGMA Clustering of Data with Very High Dimensionality', A. Bouguettaya, and Hongming Qi, and A. Delis, and Je-Ho Park, Encyclopedia of Computer Science and Technology, Vol 45. Marcel Dekker, Inc. 2002 (Editors: Allen Kent and James G. Williams).
11. Multidatabase Systems: Past and Present, A. Bouguettaya, B. Benatallah, A. K.  Elmagarmid, Management of Heterogeneous and Autonomous Database Systems, ISBN 1-55860-216-X, Morgan Kauffmann. 1999.
12. Data Reduction, A. Bouguettaya , Q. Le-Viet, and A. Delis, Encyclopedia of Electrical and Electronics Engineering,
    John Wiley & Sons Inc. March 1999.
13. Data Discovery in Large Scale Heterogeneous and Autonomous Databases, A. Bouguettaya and S. Milliner, Special Issue on Advances in Digital Libraries, Eds: N. R. Adam and B. Bhargava, Springer Verlag Lecture Notes in Computer Science, 1995.
14. Internet Computing Support for Digital Government, A. Bouguettaya, A. Rezgui, B. Medjahed, and M. Ouzzani, Invited paper,
    To appear in the Practical Handbook of Internet Computing, Editor: Munindhar Singh, RC Press LLC, USA, 2003.

Refereed Journal Publications

15. Deploying and Managing Web Services: Issues, Solutions, and Directions, Qi Yu, X. Liu, A. Bouguettaya, and B. Medjahed, VLDB Journal, To Appear. 2006.
16. A Scalable Middleware for Web Databases, A. Bouguettaya, Z. Malik, A. Rezgui, and L. Korf
    , Journal of Database Management, Volume 17, Number 4, Oct-Dec 2006.
17. Customized Delivery of E-Government Web Services, B. Medjahed and A . Bouguettaya, IEEE Intelligent Systems, Volume 20, Number 6, pp. 77-84, November/December 2005. The paper is also published in IEEE Distributed Systems Online, 7(1), January 2006.
18. Preserving Trade Secrets Between Competitors in B2B Interactions, Z. Malik and A. Bouguettaya, International Journal for Cooperative Information Systems, Volume 14, Number 2, June 2005.
19. A Multilevel Composability Model for SemanticWeb Services, B. Medjahed and A. Bouguettaya, IEEE Transactions on Knowledge and Data Engineering, Volume 17, Number 7, July 2005.
20. A Dynamic Foundational Architecture for Semantic Web Services, B. Medjahed and A. Bouguettaya, Distributed and Parallel Databases (DAPD) Journal, Volume 17, Number 2, March 2005.
21. Adaptive Data Access in Broadcast-based Wireless Environments, X. Yang and A. Bouguettaya, IEEE Transactions on Knowledge and Data Engineering, Volume 17, Number 3, March 2005.
22. SemWebDL: A Privacy Preserving Semantic Web Infrastructure for Digital Libraries, A. Rezgui and A. Bouguettaya and M. Eltoweissy, International Journal on Digital Libraries, Volume 4, Number 3, November 2004.
23. WebBIS: An Infrastructure for Agile Integration of Web Services, B. Medjahed, B. Benatallah, A. Bouguettaya, and A. Elmagarmid, International Journal on Cooperative Information Systems, 13(2), June 2004.
24. Query Processing and Optimization on the Web, M. Ouzzani and A. Bouguettaya, Distributed and Parallel Databases, An International Journal, 15(3), 187-218, May 2004.
25. Efficient Access to Web Services, M. Ouzzani and A. Bouguettaya, IEEE Internet Computing, 8(2), March-April, 2004.
26. Privacy on the Web: Facts, Challenges, and Solutions, A. Rezgui, A. Bouguettaya, M. Eltoweissy, IEEE Security and Privacy, 1(6), Nov-Dec 2003.
27. Organizing and Accessing Web Services on Air, X. Yang, A. Bouguettaya, B. Medjahed, H. Long, and W. He, IEEE Transactions on Systems, Man, and Cybernetics Part A: Systems and Humans, 33(6). Nov 2003.
28. Composing Services on the Semantic Web, B. Medjahed, A. Bouguettaya, and A. Elmagarmid, VLDB Journal, 12(4): 333-351, 2003.
29. Infrastructure for E-Government Web Services, B. Medjahed, A. Rezgui, A. Bouguettaya, and M. Ouzzani, IEEE Internet Computing, Vol 7, No. 1, Jan-Feb 2003.
30. Business-to-Business Interactions: Issues and Enabling Technologies, B. Medjahed, B. Benatallah, A. Bouguettaya, Ann Ngu, and A. Elmagarmid, VLDB Journal, Volume 12, Issue 1, pp59-85. 2003.
31. Managing Government Databases, A. Bouguettaya, M. Ouzzani, B. Medjahed, and J. Cameron, Computer, IEEE Computer Society. February 2001.
32. A Dynamic Architecture for Organizing and Querying Web-accessible Databases, Athman Bouguettaya, Boualem Benatallah, Lily Hendra, Mourad Ouzzani, and James Beard, IEEE Transaction on Knowledge and Data Engineering, Vol 12, No 5, September/October 2000.
33. Ontological Approach for Information Discovery in Internet Databases, M. Ouzzani and B. Benatallah and A. Bouguettaya, Distributed and Parallel Databases, An International Journal, Volume 8 Number 3. 2000.
34. WebFINDIT - An Architecture and System for Querying Web Databases, A. Bouguettaya and Boualem Benatallah and Mourad Ouzzani and Lily Hendra, IEEE Internet Computing, Volume 3 Number 4, July-August 1999.
35. Data Clustering Analysis in a Multidimensional Space, A. Bouguettaya and Q. Le-Viet, Information Sciences, An International Journal, Vol 112 [1-4], pages 267-295, 1998.
36. Class Library Support for Workflow Environments and Applications, M. Papazoglou, A. Delis, A. Bouguettaya, and M. Haghjoo, The IEEE Transactions on Computers, Vol. 46, No 6, June 1997.
37. On-line Clustering, A. Bouguettaya, the IEEE Transactions on Knowledge and Data Engineering Vol 8, No 2, April 1996.
38. On Distributed Persistent Objects for Interoperable Data Stores, A.  Beeharry, A. Bouguettaya and A. Delis, Information Sciences Journal, Vol 91, May 1996.
39. Resource Location in Large Scale Heterogeneous and Autonomous Databases, A. Bouguettaya, R. King, and S. Milliner, Journal of Intelligent Information Systems, Volume 5, 1995.
40. On Building a Hyperdistributed Database, A. Bouguettaya, M. Papazoglou, and R.  King, Information Systems, an International Journal.  Vol 20, No 7, 1995.
41. Co-database Approach to Database Interoperability, A. Bouguettaya and S. Milliner, IEICE Transactions on Information and Systems, Vol. E78-D, No. 11, November 1995.

Short Articles

42. Introduction to the Special Issue on Database Technology on the Web, E. Bertino and A.  Bouguettaya, IEEE Internet Computing, Vol. 6, No. 4, 2002.
43. WebDG: A E-Government Infrastructure for Uniform Privacy Preserving Access to Autonomous Web Databases and Services, Athman Bouguettaya, AOL Common Ground Research Day Workshop, Herndon, Virginia, 2002.
44. Uniform and Secure Access to Autonomous Web Databases and Services, Athman Bouguettaya and Mohamed Eltoweissy,
    AOL Common Ground Research Day Workshop, Herndon, Virginia, 2001.
45. A Web-based Architecture for Government Databases and Services, A. Bouguettaya and A. Elmagarmid and B. Medjahed
    and M. Ouzzani, NSF Conference Demonstration (also on CD-ROM), 2001.
46. Querying Internet-Accessible Databases, A. Bouguettaya and B. Benatallah and L. Hendra and J. Beard and K. Smith and M. Ouzzani, SIGMOD-DiSC Electronic Journal, 2000.
47. Introduction to the Special Issue on Ontologies and Databases, A.  Bouguettaya, Distributed and Parallel Databases, An International Journal, Vol. 7, No. 1, 1999.

Refereed Conference Publications

48. Effcient Access to Wireless Web Services, X. Yang and A. Bouguettaya, International Conference on Mobile Data Management (MDM'06), 2006.
49. Ubiquitous Web Services for E-Government Social Services, Athman Bouguettaya and Denis Gracanin and Qi Yu and Xiaoyu Zhang and Xumin Liu and Zaki Malik, First Workshop on The Semantic Web meets eGovernment, 2006.
50. A Biological Web Service Modeling and Mining Framework, G. Zheng and A. Bouguettaya, The 3rd International Workshop on Biological Data Management (BIDM'05), 2005.
51. Web Service Mining for Biological Pathway Discovery, G. Zheng and A. Bouguettaya, The 2nd International Workshop on Data Integration for the Life Sciences (DILS 2005), 2005.
52. Using a Hybrid Method for Accessing Broadcast Data, X. Yang and A. Bouguettaya, International Conference on Mobile Data Management (MDM'05), 2005.
53. Online Privacy-based Ranking of Web Services, A. Rezgui and A. Bouguettaya, the 2nd International Conference on Service Oriented Computing (ICSOC04). forum paper. 2004.
54. Managing Changes to Virtual Enterprises on the Semantic Web, S. Akram and A. Bouguettaya, The Fifth International Conference on Web Information Systems Engineering (WISE04), 2004.
55. WebDG - A Platform for E-Government Web Services, Athman Bouguettaya, Brahim Medjahed, Abdelmounaam Rezgui, Mourad Ouzzani, Xumin Liu, and Qi Yu, The First International Workshop on Digital Government: Systems and Technologies (DGOV2004), 2004.
56. Database Middleware for Distributed Ontologies in State and Federal Family and Social Services, A. Bouguettaya and A. Elmagarmid and M. Ouzzani and B. Medjahed, National Conference on Digital Government Research, 2004.
57. Supporting Dynamic Change in Web Service Environments, M.S. Akram, B. Medjahed, and A. Bouguettaya, 1st International Conference on Service Oriented Computing, IC-SOC, Italy, 2003.
58. A Reputation-based Approach to Preserving Privacy in Web Services, A. Rezgui, A. Bouguettaya, and Z. Malik, VLDB-TES'2003, Berlin, 2003.
59. Semantic Web Enabled E-Government Services, B. Medjahed, A. Bouguettaya, and M. Ouzzani, 2003 National Conference on Digital Government Research, Boston, May 2003.
60. Optimized Querying of E-government Services, M. Ouzzani, A. Bouguettaya, and B. Medjahed, 2003 National Conference on Digital Government research, Boston, May 2003.
61. A New Query Paradigm for Web Services, M. Ouzzani, and A. Bouguettaya, 1st International Conference on Web Services, Las Vegas , June 2003.
62. Using Hashing and Caching for Location Management in Wireless Mobile Systems, W. He and A. Bouguettaya, International Conference on Mobile Data Management (MDM), January 2003, Melbourne, Australia.
63. Preserving Privacy in Web Services, A. Rezgui and Mourad Ouzzani and A. Bouguettaya and Brahim Medjahed, ACM CIKM-Fourth International Workshop on Web Information and Data Management (CIKM-WIDM'02), November 2002.
64. Benchmarking Data Access in Wireless Environments, X. Yang and A. Bouguettaya, 8th International Conference on Extending Database Technology, (EDBT) March 2002, Prague.
65. Enforcing Privacy in Interoperable E-Government Applications, A. Rezgui and Z. Wen and A. Bouguettaya, NSF Conference
    on Digital Government, May 2002.
66. Using Web Services in E-Government Applications, B. Medjahed and M. Ouzzani and A. Bouguettaya, NSF Conference
    on Digital Government, May 2002.
67. Privacy Preserving Composition of Government Web Services, A. Bouguettaya and B. Medjahed and A. Rezgui and M. Ouzzani and Z. Wen, NSF Conference on Digital Government, (demo paper) May 2002.
68. Ontology-based Support for Government Databases. A. Bouguettaya and A. Elmagarmid and B. Medjahed and M. Ouzzani,
    VLDB 2001, Sept 2001, Invited paper.
69. A Web-based Architecture for Government Databases and Services, A. Bouguettaya, A. Elmagarmid, B. Medjahed, and M. Ouzzani, NSF Conference on Digital Government}, May 2001.
70. Composing and Maintaining Web-based Virtual Enterprises, B. Benatallah, B. Medjahed, A. Bouguettaya, A. Elmagarmid, and J. Beard, Workshop on Technologies E-Services - The International Conference on Very Large Databases, TES-VLDB '2000.
71. World Wide Database - Integrating the Web, CORBA and Databases, A.  Bouguettaya and B. Benatallah and L. Hendra and M. Ouzzani and J. Beard and K. Smith, ACM SIGMOD}, June 1999.
72. Using Java and CORBA for Implementing Internet Databases, A. Bouguettaya and B. Benatallah and M. Ouzzani and L. Hendra, IEEE International Conference on Data Engineering, March 1999.
73. Reflective Data Sharing in Managing Internet Databases, A. Bouguettaya and B. Benatallah and D. Edmond , IEEE International Conference on Distributed Computing Systems, May 1998.
74. Schema Correctness Procedures in Object-Oriented Databases, D. Edmond and A. Bouguettaya and B. Benatallah, the Australasian Database Conference, Perth, February 1998.
75. Data Sharing on the Web, B. Benatallah and A.  Bouguettaya , The International Conference on Enterprise Distributed Object Computing, Gold Coast, October 1997.
76. A Comparison of Group-based and Object-based Data Clustering Techniques, A. Bouguettaya, Q. Le Viet, and M. Golea, 8th International Database Workshop: Data Mining, Data Warehousing, and Client-Server Databases, Hong Kong, July 1997.
77. Language Support for Long-lived Concurrent Activities, M. Papazoglou, A. Delis, M. Haghjoo, and A. Bouguettaya, The International Conference on Distributed Computing Systems, ICDCS-16, Hong Kong, May 1996.
78. On the Construction of Mobile Database Management Systems, A. Bouguettaya, The Australian Workshop on Mobile Computing & Databases & Applications, Melbourne. February 1996.
79. A Scalable Architecture for Autonomous Heterogeneous Database Interactions, S.  Milliner, A. Bouguettaya, and M. Papazoglou, The 21 International Conference on Very Large Databases, VLDB '95 Proceedings, Zurich, Switzerland, September 1995.
80. Managing Persistent Objects in a Distributed Environment, A. Beeharry, A. Delis, and A. Bouguettaya, The Sixth Australasian Database Conference, in Australian Computer Science Communications, Volume 17(2), Eds. R. Sacks-Davis and J. Zobel, Adelaide, Australia, Jan 30- Feb 3 1995.
81. Using Coalitions and Services for Implementing Sharing in a Large Network of Databases, A. Bouguettaya, The Second International Symposium on Autonomous Decentralized Systems, Phoenix (Arizona), April 25-27, 1995.
82. On The Representation of Objects with Polymorphic Shape and Behavior, M. Papazoglou, B. Krämer, and A. Bouguettaya, The Entity-Relationship Approach Conference, Springer Verlag Lecture Notes in Computer Science, Manchester, England, December 1994.
83. On the Scalability of Interoperable Autonomous and Heterogeneous Databases, A. Bouguettaya, Proceedings of the International Symposium on Advanced Database Technologies and Their Integration (ADTI), Eds. S. Uemura and M. Yoshikawa, Nara, Japan, 1994.
84. Large Multidatabases: Beyond Federation and Global Schema Integration, A. Bouguettaya, Proceedings of the Fifth Australasian Database Conference, Christchurch, New Zealand, Global Publications Service, Jan. 1994.
85. Large Multidatabases: Issues and Directions, A. Bouguettaya and R. King, IFIP Technical Committee 2 International Working Conference, DS-5  Semantics of Interoperable Database Systems, Lorne, Victoria, Australia, November 16-20, 1992, Elsevier Publishing Company 1993.
86. Implementation of Interoperability in Large Multidatabases, A. Bouguettaya, D. Galligan, R. King, and J. Simmons, Third International Workshop on Research Issues on Data Engineering: Interoperability in Multidatabase Systems}, IEEE Computer Press, April 18-20, 1993.
87. FINDIT: A Server Based Approach to Finding Information in Large Scale Heterogeneous Databases, A. Bouguettaya, R. King,  and K. Zhao, First International Workshop on Interoperability in Multidatabase Systems, Kyoto, Japan, IEEE Computer Press, April 7-9, 1991.
88. Incremental Specification of Views Across Databases, K. Zhao, R. King, and A. Bouguettaya, First International Workshop on Interoperability in Multidatabase Systems},  Kyoto, Japan, IEEE Computer Press, April 7-9, 1991.

Other Publications

Theses

89. Ph.D Thesis: A Dynamic Framework for Interoperability in Large Multidatabases, Department of Computer Science, University of Colorado, Boulder, Colorado (USA), May 1992.
90. M.S. Thesis: A Comparative Study of Some Clustering Methods, Department of Computer Science, University of Colorado, Boulder, Colorado (USA), July 1987.
91. Ingénieur d'Etat (5-year program) Thesis: Construction d'un Compilateur pour un Sous-Ensemble de PL/1 avec Interpreteur, Department of Computer Science, University of Annaba, Algeria.

Non-refereed Publications

92. La Recherche Scientifique en Algerie: Present et Futur, A. Bellaouar, A. Bouguettaya, N. Guessoum, and D. Hattab, El-Moudjahid (Algerian major daily newspaper - in French), Jan 28 & Jan 29 1990.
93. Relance de la Recherche Scientifique en Algerie: Perspectives et Projets, A. Bouguettaya, N. Guessoum, K. Diff, El-Moudjahid (Algerian major daily newspaper - in French), Jan 3rd 1991.
94. Clustering Objects On-Line, A. Bouguettaya, Technical Report CU-CS-590-92, Department of Computer Science, University of Colorado at Boulder, April 1992.

Current Graduate Students

Current PhD Students

• Mr. Xu Yang (post-qualifier, post-preliminary), Thesis title: Multichannel Access Methods for Mobile Web Services
• Mr. George Zheng (post-qualifier, post-preliminary), Thesis title: Web Services Mining
• Mr. Yu Qi (post-qualifier, post-preliminary), Thesis title: Foundations of Web Service Optimization
• Mr. Zaki Malik (post-qualifier, post-preliminary), Thesis title: Managing Trust in Web Service Management Systems
• Ms. Xumin Liu (post-qualifier), Thesis title: Change Management in Web Services

Former PhD Students

• Mr. Mourad Ouzzani, Thesis title: Effcient Delivery of Web Services. Graduated Spring 2004. (Faculty member at Purdue Univ).
• Mr. Brahim Medjahed, Thesis title: Semantic Web Enabled Composition of Web Services. Graduated Spring 2004. (Faculty member at Univ. of Michigan).

Master Students

• Mr. Salman Akram, Thesis title: Change Management in Service Oriented Enterprises. (graduated: 06/2005). Virginia Tech.
• Mr. Zaki Malik, Thesis title: Enforcing Trade Secrets among Competitors on the Semantic Web. (graduated: 08/2004). Virginia Tech
• Ms. Lily Hendra, Thesis title: Internet Databases: Using The Web, Corba, and Agent Technology. (graduated: 07/1999). QUT.
• Mr. Atmanand Beeharry, Thesis title: Survey and Prototype Implementation of a Persistent Storage Management Service for Objects in Distributed Environments. (graduated: 1995). QUT.

Professional Activities

Editorial Boards

• Very Large DataBase (VLDB) Journal Editorial Board Member. 2006-
• International Journal on Cooperative Information Systems Editorial Board Member. 2004-present.
• International Journal on Web and Grid Services Editorial Board Member. 2004-present.
• International Journal of Web Services Research. Editorial Review Board member. 2003-present.
• IASTED Technical Committee, Database Area member, 2001-present.
• Journal of Database Management, Editorial Review Board member, 2001-2005.
• Distributed and Parallel Databases, an International Journal, Associate Editor, 1997-present.

Guest of Special Issues

• Guest Editor for the Special Issue on Semantic Web Services: Issues, Solutions and Applications (with Brahim Medjahed and Boualem Benatallah), ACM Transactions on Internet Technology (ACM TOIT). 2006.
• Guest Editor for the Special Issue on Web Services (with Boualem Benatallah), Parallel and Distributed Databases, an International Journal. 2005.
• Guest Editor for the Special Issue on Database Technology on the Web, IEEE Internet Computing, 2002.
• Guest Editor for the Special Issue on Ontologies and Databases, Parallel and Distributed Databases, an International Journal, 1998.

Conference Technical Chair

• IEEE-RIDE on Digital Government Services, Boston, 2004, Technical Program Co-Chair.

Conference Panel Member

• Very Large Data Bases (VLDB), 2000.
• Research Issues in Data Engineering: RIDE-Virtual Enterprises Conference, 1999.

Tutorial Chair

• The Eighth Asia Paci
  c Web Conference (APWeb'06). Panel and Tutorial Chair. 2006.
• International Conference on Database Systems for Advanced Applications (DASFAA), 2001.
• IEEE Conference on Data Engineering (ICDE), 1999.

Conference Program Coordination

• The First International Conference on Service Oriented Computing (IC-SOC), 2003.  Publicity Chair for USA.
• 10th European Conference on Information Systems. 2002. Area Editor.
• Very Large Data Bases (VLDB) Conference, 2000, Geographic Area Chair.
• International Conference on Parallel Processing, 1999, International liaison co-chair.
• International Conference on Distributed Computing Systems, 1998, International Liaison Co-chair.
• International Workshop on Workflow Management Systems in conjunction with the EDBT conference
  WFMS-EDBT, 1998. Australasia Coordinator.
• European Parallel and Distributed Systems Conference (Euro-PDS), 1998. Publicity Co-Chair.

Conference Program Session Chairing

• 2004 IEEE International Conference on Web Services (ICWS 2004), 2004. Session Chair.
• IEEE International Conference on Distributed Computing Systems, 1998, Session Chair.
• Australasian Database Conference (ADC'98), 1998. Session Chair.
• International Conference on Object-Oriented Information Systems (OOIS '97), 1997. Session Chair.

Conference Program Committee Membership

• The 2007 World Wide Web Conference (WWW'07). 2007.
• The APWeb/WAIM07 Conferences. 2007.
• The 2006 Asia-Pacific Services Computing Conference (APSCC 2006).
• The 23nd International Conference on Data Engineering (ICDE 07). 2007.
• 4th International Conference on Service Oriented Computing (ICSOC'06).
• IEEE International Conference on Web Services (ICWS). 2006.
• First Workshop on The Semantic Web meets eGovernment. 2006.
• Southeast Workshop on Data and Information Management. 2006.
• The Joint 8th IEEE Conference on E-Commerce Technology (CEC' 06) and the 3rd IEEE Conference on Enterprise Computing, E-Commerce and E-Services (EEE' 06).
• The IEEE 2nd International Workshop on Web and Mobile Information Systems (WAMIS'06).
• International Workshop on Database Interoperability { InterDB 06.
• The 2006 International Conference on Mobile Data Management (MDM'2006).
• International Conference Database Systems for Advanced Applications (DASFAA'06), 2006.
• The IASTED International Conference on Databases and Applications (DBA 2006).
• The 22nd International Conference on Data Engineering (ICDE 06). 2006.
• VLDB Workshop on Technology for E-Services (TES-05).
• 3rd International Conference on Service Oriented Computing (ICSOC'05).
• The 8th International Workshop on Mobility in Databases and Distributed Systems (MDDS'05).
• 13th International Conference on Cooperative Information System (CoopIS'05).
• International Workshop on Database Interoperability, InterDB 05.
• 2005 IEEE International Conference on Web Services (ICWS '05).
• The Sixth International Conference on Web Information Systems Engineering (WISE05).
• The First IEEE International Conference on Collaborative Computing: Networking, Applications & Worksharing (CollaborateCom 2005). 2005.
• The 3rd International Conference on Business Process Management (BPM'05).
• The 2005 International Conference on Mobile Data Management (MDM'2005).
• The IASTED International Conference on Databases and Applications (DBA 2005).
• 19th IEEE International Conference on Advanced Information Networking and Applications, 2005.
• The IEEE International Conference on E-Technology, E-commerce and E-service (EEE-05).
• Development and Application of Web Services Technology and Standards" mini-track at the Hawaii International Conference on System Sciences (HICSS), 2005 (Reviewer).
• The 2004 International Conference on Cooperative Information Systems (CoopIS), 2004.
• The First InternationalWorkshop on Digital Government: Systems and Technologies (DGOV2004), 2004.
• 2nd International Conference on Service Oriented Computing (ICSOC'04).
• 2nd International Workshop on Certi
  cation and Security in Inter-Organizational E-Services (CSES'04).
• The 7th International Workshop on Mobility in Databases and Distributed Systems (MDDS'04).
• The First IEEE International Workshop on Electronic Contracting (WEC'04).
• IASTED International Symposium on Database and Applications, Innsbruck, Austria. 2004.
• The IEEE International Conference on Web Services (ICWS 2004). San Diego, 2004.
• 9th International Conference on Extending Database Technology - EDBT 2004, Heraklion (Crete - Greece).
• 4th VLDB Workshop on Technologies for E-Services (VLDB-TES'03), 2003.
• 6th International Workshop on Mobility in Databases and Distributed Systems (MDDS), 2003.
• 15th IEEE International Conference on Tools with Artificial Intelligence, 2003.
• The First International Conference on Service Oriented Computing (IC-SOC), 2003.
• The First International Conference on Web Services (ICWS'03), Las Vegas, 2003.
• 1st International Workshop on Biological Data Management, Praha, Czech Republic, 2003.
• IEEE Conference on E-Commerce (CEC'03), Newport Beach, California, June 2003.
• International Conference on Information Resources Management Association (IRMA), Philadelphia, PA. 2003.
• Twenty-First IASTED International Multi-Conference - Applied Informatics - AI 2003, Innsbruck, Austria, 2003.
• 6th IEEE International Symposium on Object-oriented Real-time Distributed Computing, 2003, Hokkaido, Japan.
• Sixth International Symposium on Programming and Systems, 2003, Algiers, Algeria.
• IASTED International Conference on Information Systems and Databases (ISDB), Tokyo, Japan, 2002.
• 4th IEEE International Conference on Tools with Artificial Intelligence (ICTAI), Washington DC, 2002.
• Workshop on Trusted Computing Paradigms ( WTCP), Vancouver, British Columbia, Canada, 2002.
• International Workshop of Mobility in Databases and Distributed Systems (MDDS'02), Aix-en-Provence, France, 2002.
• 7th Maghrebian Conference on Computer Sciences, Annaba, Algeria, 2002.
• IASTED International Symposium on Database and Applications, Innsbruck, Austria. 2002.
• 10th European Conference on Information Systems. 2002.
• 12th International Workshop on Research Issues on Data Engineering: Engineering E-Commerce/E-Business Systems (RIDE-2EC'2002). 2002.
• 10th ACM International Conference on Knowledge and Data Engineering (CIKM). 2001.
• 4th International Workshop on Mobility in Databases and Distributed Systems, Munich, Germany. 2001.
• International Conference on Database Systems for Advanced Applications (DASFAA), 2001.
• The Twelveth IEEE International Conference on Tools with Artificial Intelligence (ICTAI'00), Vancouver, British Columbia, 2000.
• 3rd International Workshop on Mobility in Databases and Distributed Systems, Greenwich, UK. 2000.
• International Conference on Software Engineering and Knowledge Engineering(SEKE'00). Chicago, IL. 2000.
• The Eleventh IEEE International Conference on Tools with Artificial Intelligence (ICTAI'99), Chicago,IL , 1999.
• International Workshop of Mobility in Databases and Distributed Systems (MDDS'99), Florence, Italy, 1999.
• International Conference on Cooperative and Interoperable Systems (CooPIS), 1999.
• International Conference on Database Systems for Advanced Applications (DASFAA). 1999.
• International Workshop on Network-Based Information Systems (NBIS). 1999.
• International Symposium on Programming and Systems, (ISPS). 1999.
• European Parallel and Distributed Systems Conference (Euro-PDS), 1998.
• International Workshop on Workflow Management Systems in conjunction with the EDBT conference WFMS-EDBT, 1998.
• International Conference on Very Large Databases (VLDB), 1997.
• International Conference on Computer Communications and Networks, 1996.
• Australasian Workshop on Mobile Computing & Databases & Applications(MCDA). 1996, 1997. 
• Object-Oriented and Entity Relationship Modeling Conference, 1995.
• International Conference on Cooperative and Interoperable Systems (CooPIS), 1996.
• International Conference on Parallel and Distributed Systems (ICPADS), 1996.

Pictures from the ECEG Lab