DBGlobe: a data-centric approach to global computing

In the near future, there will be increasingly powerful computers in smart cards, telephones, and other information appliances. This will create a massive infrastructure composed of highly diverse interconnected mobile entities. In this paper, we present a data-centric approach to storage and querying in such environments. At a first level, we view each entity as a miniature database; at a second level we maintain databases of metadata and services. We describe how information delivery and querying are performed in such architectures.

[1]  Ralf Hartmut Güting,et al.  Spatio-Temporal Data Types: An Approach to Modeling and Querying Moving Objects in Databases , 1999, GeoInformatica.

[2]  Philip Resnik,et al.  Semantic Similarity in a Taxonomy: An Information-Based Measure and its Application to Problems of Ambiguity in Natural Language , 1999, J. Artif. Intell. Res..

[3]  Christian S. Jensen,et al.  Capturing and Querying Multiple Aspects of Semistructured Data , 1999, VLDB.

[4]  Evaggelia Pitoura,et al.  ViSMA: extendible, mobile-agent based services for the materialization and maintenance of personalized and shareable Web views , 2003, 14th International Workshop on Database and Expert Systems Applications, 2003. Proceedings..

[5]  ChrisWells ComputerScienceDivision Universityof The OceanStore Archive : Goals , Structures , and Self-Repair , 2001 .

[6]  Gita Gopal,et al.  The datacycle architecture for very high throughput database systems , 1987, SIGMOD '87.

[7]  Ahmed K. Elmagarmid,et al.  Object orientation in multidatabase systems , 1995, CSUR.

[8]  Steven Tuecke,et al.  The Physiology of the Grid An Open Grid Services Architecture for Distributed Systems Integration , 2002 .

[9]  Stanley B. Zdonik,et al.  Dissemination-Based Information Systems , 1996, IEEE Data Eng. Bull..

[10]  Dan Suciu,et al.  What Can Database Do for Peer-to-Peer? , 2001, WebDB.

[11]  Evaggelia Pitoura,et al.  Scalable processing of read-only transactions in broadcast push , 1999, Proceedings. 19th IEEE International Conference on Distributed Computing Systems (Cat. No.99CB37003).

[12]  Isabelle Mirbel,et al.  Temporal integrity constraints in interactive multimedia documents , 1999, Proceedings IEEE International Conference on Multimedia Computing and Systems.

[13]  Serge Abiteboul,et al.  Monitoring XML data on the Web , 2001, SIGMOD '01.

[14]  Peter Triantafillou,et al.  ProxyTeller: A tool guiding web proxy placement decisions , 2003 .

[15]  Bharat Bhargava,et al.  A framework for providing consistent and recoverable agent-based access to heterogeneous mobile databases , 1995, SGMD.

[16]  Jennifer Widom,et al.  Ozone: Integrating Structured and Semistructured Data , 1999, DBPL.

[17]  Evaggelia Pitoura,et al.  Content-Based Routing of Path Queries in Peer-to-Peer Systems , 2004, EDBT.

[18]  Daniel Barbará Certification reports: supporting transactions in wireless systems , 1997, Proceedings of 17th International Conference on Distributed Computing Systems.

[19]  Dimitrios Gunopulos,et al.  Mining Process Models from Workflow Logs , 1998, EDBT.

[20]  Susanne Boll,et al.  Events in interactive multimedia applications: modeling and implementation design , 1997, Proceedings of IEEE International Conference on Multimedia Computing and Systems.

[21]  George Samaras,et al.  mPERSONA: Personalized Portals for the Wireless User: An Agent Approach , 2004, Mob. Networks Appl..

[22]  Nectaria Tryfona,et al.  Services-based data management in a global computing environment , 2003, Fourth International Conference on Web Information Systems Engineering Workshops, 2003. Proceedings..

[23]  Evaggelia Pitoura,et al.  Transaction-Based Coordination of Software Agents , 1998, DEXA.

[24]  Timos K. Sellis,et al.  Incorporating fuzzy set methodologies in a DBMS repository for the application domain of GIS , 1999, Int. J. Geogr. Inf. Sci..

[25]  Caroline C. Hayes,et al.  Agents in a Nutshell - A Very Brief Introduction , 1999, IEEE Trans. Knowl. Data Eng..

[26]  Timos K. Sellis,et al.  Spatio-temporal composition and indexing for large multimedia applications , 1998, Multimedia Systems.

[27]  Paraskevas Evripidou,et al.  Wireless computational models: mobile agents to the rescue , 1999, Proceedings. Tenth International Workshop on Database and Expert Systems Applications. DEXA 99.

[28]  Robert Grimm,et al.  Programming for Pervasive Computing Environments , 2001 .

[29]  Hector Garcia-Molina,et al.  Efficient search in peer to peer networks , 2004 .

[30]  Dieter Pfoser,et al.  Capturing the Uncertainty of Moving-Object Representations , 1999, SSD.

[31]  Evaggelia Pitoura,et al.  Locating Objects in Mobile Computing , 2001, IEEE Trans. Knowl. Data Eng..

[32]  Mary Baker,et al.  The Roma personal metadata service , 2000, Proceedings Third IEEE Workshop on Mobile Computing Systems and Applications.

[33]  Torben Bach Pedersen,et al.  Pre-Aggregation for Irregular OLAP Hierarchies with the TreeScape System , 2001, ICDE Demo Sessions.

[34]  Chris Clifton,et al.  Query flocks: a generalization of association-rule mining , 1998, SIGMOD '98.

[35]  Evaggelia Pitoura,et al.  Content-Based Overlay Networks for XML Peers Based on Multi-level Bloom Filters , 2003, DBISP2P.

[36]  Timos K. Sellis,et al.  Event and Action Representation and Composition for Multimedia Application Scenario Modelling , 1996, IDMS.

[37]  Bharat K. Bhargava,et al.  On Relaxing Serializability by Constraining Transaction Readsets , 1997, Inf. Syst..

[38]  Evaggelia Pitoura,et al.  On Using Histograms as Routing Indexes in Peer-to-Peer Systems , 2004, DBISP2P.

[39]  Christian S. Jensen,et al.  Light-weight indexing of general bitemporal data , 2000, Proceedings. 12th International Conference on Scientific and Statistica Database Management.

[40]  Matei Ripeanu,et al.  Peer-to-peer architecture case study: Gnutella network , 2001, Proceedings First International Conference on Peer-to-Peer Computing.

[41]  Serge Abiteboul,et al.  Queries and computation on the web , 1997, Theor. Comput. Sci..

[42]  Evaggelia Pitoura,et al.  Data Management for Mobile Computing , 1997, The Kluwer International Series on Advances in Database Systems.

[43]  Christos Doulkeridis,et al.  Updating a Context-Aware Service Directory for M-Services ∗ , 2004 .

[44]  Vassilios V. Dimakopoulos,et al.  Cache updates in a peer-to-peer network of mobile agents , 2004, Proceedings. Fourth International Conference on Peer-to-Peer Computing, 2004. Proceedings..

[45]  Serge Abiteboul,et al.  Regular path queries with constraints , 1997, PODS '97.

[46]  Serge Abiteboul Distributed Information Management with XML and Web Services , 2004, FASE.

[47]  Ian T. Foster,et al.  The Globus project: a status report , 1998, Proceedings Seventh Heterogeneous Computing Workshop (HCW'98).

[48]  Torben Bach Pedersen,et al.  Supporting imprecision in multidimensional databases using granularities , 1999, Proceedings. Eleventh International Conference on Scientific and Statistical Database Management.

[49]  Serge Abiteboul,et al.  Query Subscription in an XML Webhouse , 2000, DELOS.

[50]  Dieter Pfoser,et al.  Indexing of network constrained moving objects , 2003, GIS '03.

[51]  Leandros Tassiulas,et al.  Downlink power control and base station assignment , 1997, IEEE Communications Letters.

[52]  Timos K. Sellis,et al.  Checking the temporal integrity of interactive multimedia documents , 2000, The VLDB Journal.

[53]  P. Triantafillou,et al.  Guiding Web Proxy and Server Placement for High Performance Internet Content Delivery , 2004 .

[54]  Evaggelia Pitoura,et al.  Communities: Concept-Based Querying for Mobile Services , 2004, Global Computing.

[55]  Matthias Klusch,et al.  Brokering and Matchmaking for Coordination of Agent Societies: A Survey , 2001, Coordination of Internet Agents: Models, Technologies, and Applications.

[56]  Markus Schneider,et al.  A foundation for representing and querying moving objects , 2000, TODS.

[57]  Timos K. Sellis,et al.  Spatio-temporal composition in multimedia applications , 1996, Proceedings International Workshop on Multimedia Software Development.

[58]  Evaggelia Pitoura,et al.  On Constructing Small Worlds in Unstructured Peer-to-Peer Systems , 2004, EDBT Workshops.

[59]  S JensenChristian,et al.  Indexing the positions of continuously moving objects , 2000 .

[60]  Evaggelia Pitoura,et al.  Challenges in Mobile Electronic Commerce , 2000 .

[61]  George Samaras,et al.  A Scalable Mobile Agent Location Mechanism , 2003 .

[62]  Dimitrios Gunopulos,et al.  An Adaptive Metric Machine for Pattern Classification , 2000, NIPS.

[63]  Evaggelia Pitoura,et al.  An Evaluation of the Java-Based Approaches to Web Database Access , 2000, CoopIS.

[64]  Evaggelia Pitoura,et al.  Exploiting Versions for Handling Updates in Broadcast Disks , 1999, VLDB.

[65]  George Samaras,et al.  WebExpress: A client/intercept based system for optimizing Web browsing in a wireless environment , 1998, Mob. Networks Appl..

[66]  Ian T. Foster,et al.  The data grid: Towards an architecture for the distributed management and analysis of large scientific datasets , 2000, J. Netw. Comput. Appl..

[67]  Christian S. Jensen,et al.  Developing a DataBlade for a new index , 1999, Proceedings 15th International Conference on Data Engineering (Cat. No.99CB36337).

[68]  Evaggelia Pitoura,et al.  View Generator (VG): a mobile agent based system for the creation and maintenance of Web views , 2002, Proceedings ISCC 2002 Seventh International Symposium on Computers and Communications.

[69]  Jennifer Widom,et al.  Managing Historical Semistructured Data , 1999, Theory Pract. Object Syst..

[70]  Evaggelia Pitoura,et al.  Mobile agents for WWW distributed database access , 1999, Proceedings 15th International Conference on Data Engineering (Cat. No.99CB36337).

[71]  Serge Abiteboul,et al.  Complexity of answering queries using materialized views , 1998, PODS.

[72]  Michael Vazirgiannis,et al.  SPATIAL DECISION MAKING BASED ON FUZZY SET , 1996 .

[73]  Michalis Vazirgiannis,et al.  Quality Scheme Assessment in the Clustering Process , 2000, PKDD.

[74]  Evaggelia Pitoura Supporting read-only transactions in wireless broadcasting , 1998, Proceedings Ninth International Workshop on Database and Expert Systems Applications (Cat. No.98EX130).

[75]  Christian S. Jensen,et al.  On the Ontological Expressiveness of Temporal Extensions to the Entity-Relationship Model , 1999, ER.

[76]  Timos K. Sellis,et al.  Spatio-temporal indexing for large multimedia applications , 1996, Proceedings of the Third IEEE International Conference on Multimedia Computing and Systems.

[77]  Serge Abiteboul,et al.  Managing an XML Warehouse in a P2P Context , 2003, CAiSE.

[78]  Ian T. Foster,et al.  Globus: a Metacomputing Infrastructure Toolkit , 1997, Int. J. High Perform. Comput. Appl..

[79]  Paul M. Bober,et al.  Multiversion Query Locking , 1992, VLDB.

[80]  Michalis Vazirgiannis,et al.  Interactive multimedia scenario: modeling & rendering , 1998, SAC '98.

[81]  Paraskevas Evripidou,et al.  Fine-Grained Parallelism in Dynamic Web Content Generation: The Parse and Dispatch Approach , 2003, OTM.

[82]  Serge Abiteboul,et al.  Schema-driven Customization of Web Services , 2003, VLDB.

[83]  Steven Tuecke,et al.  Protocols and services for distributed data-intensive science , 2002 .

[84]  Christiane Fellbaum,et al.  Book Reviews: WordNet: An Electronic Lexical Database , 1999, CL.

[85]  Andrew S. Tanenbaum,et al.  Globe: a wide area distributed system , 1999, IEEE Concurr..

[86]  Yannis Papakonstantinou,et al.  Fusion Queries over Internet Databases , 1998, EDBT.

[87]  Evaggelia Pitoura,et al.  Bloom-based filters for hierarchical data , 2003 .

[88]  Philip S. Yu,et al.  Declarative Specification of Electronic Commerce Applications , 2000, IEEE Data Eng. Bull..

[89]  Martin Grohe,et al.  On first-order topological queries , 2002, TOCL.

[90]  Ioana Manolescu,et al.  Dynamic XML documents with distribution and replication , 2003, SIGMOD '03.

[91]  Bharat K. Bhargava,et al.  Digital library services in mobile computing , 1995, SGMD.

[92]  Serge Abiteboul,et al.  Relational transducers for electronic commerce , 1998, J. Comput. Syst. Sci..

[93]  Douglas H. Fisher,et al.  Improving Inference through Conceptual Clustering , 1987, AAAI.

[94]  D. Burr,et al.  Recent publications , 1898, The Journal of Geology.

[95]  Robert B. Ross,et al.  Impact: a platform for collaborating agents , 1999, IEEE Intell. Syst..

[96]  Evaggelia Pitoura,et al.  Multiversion Data Broadcast , 2002, IEEE Trans. Computers.

[97]  Vassilios V. Dimakopoulos,et al.  On Deploying and Executing Data-Intensive Code on SMart Autonomous Storage (SmAS) Disks , 2000, ADBIS-DASFAA.

[98]  Peter Triantafillou,et al.  Subscription summaries for scalability and efficiency in publish/subscribe systems , 2002, Proceedings 22nd International Conference on Distributed Computing Systems Workshops.

[99]  Serge Abiteboul,et al.  Temporal Connectives Versus Explicit Timestamps to Query Temporal Databases , 1999, J. Comput. Syst. Sci..

[100]  Paraskevas Evripidou,et al.  Parallel computing using Java mobile agents , 1999, Proceedings 25th EUROMICRO Conference. Informatics: Theory and Practice for the New Millennium.

[101]  Arantza Illarramendi,et al.  Data Lockers: Mobile-Agent Based Middleware for the Security and Availability of Roaming Users Data , 2000, CoopIS.

[102]  Christian S. Jensen,et al.  Effective timestamping in databases , 2000, The VLDB Journal.

[103]  Evaggelia Pitoura,et al.  Filters for XML-based Service Discovery in Pervasive Computing , 2004, Comput. J..

[104]  Vijay Kumar,et al.  Data Organization Issues for Location-Dependent Queries in Mobile Computing , 2000, ADBIS-DASFAA.

[105]  Dimitrios Gunopulos,et al.  Efficient Mining of Spatiotemporal Patterns , 2001, SSTD.

[106]  Tova Milo,et al.  Active Views for Electronic Commerce , 1999, VLDB.

[107]  Dimitrios Gunopulos,et al.  On indexing mobile objects , 1999, PODS '99.

[108]  Samuel Madden,et al.  Fjording the stream: an architecture for queries over streaming sensor data , 2002, Proceedings 18th International Conference on Data Engineering.

[109]  Evaggelia Pitoura,et al.  An efficient hierarchical scheme for locating highly mobile users , 1998, CIKM '98.

[110]  Stefan Berchtold,et al.  An efficient approximation scheme for data mining tasks , 2001, Proceedings 17th International Conference on Data Engineering.

[111]  Victor Vianu,et al.  Querying spatial databases via topological invariants , 1998, J. Comput. Syst. Sci..

[112]  Andrew S. Tanenbaum,et al.  Access control, reverse access control and replication control in a world wide distributed system , 2002, Communications and Multimedia Security.

[113]  George Samaras,et al.  Distributed Indexing of the Web Using Migrating Crawlers , 2003, WWW.

[114]  Timos K. Sellis,et al.  Interactive Multimedia Documents: A Modeling, Authoring and Rendering Approach , 2000, Multimedia Tools and Applications.

[115]  Deborah Estrin,et al.  Directed diffusion: a scalable and robust communication paradigm for sensor networks , 2000, MobiCom '00.

[116]  Leandros Tassiulas,et al.  Improving the capacity in wireless networks through integrated channel base station and power assignment , 1995, Proceedings of GLOBECOM '95.

[117]  Leandros Tassiulas,et al.  Traffic forwarding by radio relay in personal communication networks , 1993, Proceedings of 2nd IEEE International Conference on Universal Personal Communications.

[118]  Dimitrios Gunopulos,et al.  Automatic subspace clustering of high dimensional data for data mining applications , 1998, SIGMOD '98.

[119]  Dieter Pfoser,et al.  DBGlobe: a service-oriented P2P system for global computing , 2003, SGMD.

[120]  Victor Vianu,et al.  Review - Computable Queries for Relational Data Bases , 2000, ACM SIGMOD Digit. Rev..

[121]  George Samaras,et al.  Personalized portals for the wireless user based on mobile agents , 2002, WMC '02.

[122]  Arantza Illarramendi,et al.  Extending the data services of mobile computers by external data lockers , 2000, Proceedings 11th International Workshop on Database and Expert Systems Applications.

[123]  Michalis Vazirgiannis A Classification and Relationship Extraction Scheme for Raltional Databases Based on Fuzzy Logic , 1998, PAKDD.

[124]  Ajay D. Kshemkalyani,et al.  Context management and its applications to distributed transactions , 1998, Distributed Syst. Eng..

[125]  Rafael Alonso,et al.  Broadcast Disks: Data Management for Asymmetric Communication Environments , 1994, Mobidata.

[126]  Michalis Vazirgiannis,et al.  Incorporating Fuzzy Logic Methodologies into GIS Operations , 1996 .

[127]  Maria Papadopouli,et al.  Locating application data across service discovery domains , 2001, MobiCom '01.

[128]  Tok Wang Ling,et al.  17th International Conference on Conceptual Modeling (ER'98) , 1999, Data Knowl. Eng..

[129]  Nectaria Tryfona,et al.  Using abstractions for spatio-temporal conceptual modeling , 2000, SAC '00.

[130]  George Samaras,et al.  Ipmicra: Toward a Distributed and Adaptable Location Aware Web Crawler , 2004, ADBIS.

[131]  Dimitrios Gunopulos,et al.  Time-series similarity problems and well-separated geometric sets , 1997, SCG '97.

[132]  Stanley B. Zdonik,et al.  Disseminating Updates on Broadcast Disks , 1996, VLDB.

[133]  Christian S. Jensen,et al.  Temporal Entity-RelationshipModels | a Survey , 1996 .

[134]  Jennifer Widom,et al.  Representing and querying changes in semistructured data , 1998, Proceedings 14th International Conference on Data Engineering.

[135]  Serge Abiteboul,et al.  Tools for Data Translation and Integration , 1999, IEEE Data Eng. Bull..

[136]  Evaggelia Pitoura,et al.  Adaptive multiversion data broadcast organizations , 2004, Inf. Syst..

[137]  Serge Abiteboul,et al.  On views and XML , 1999, PODS '99.

[138]  Nectaria Tryfona,et al.  Modeling, storing and mining moving object databases , 2004, Proceedings. International Database Engineering and Applications Symposium, 2004. IDEAS '04..

[139]  Alfons Kemper,et al.  ObjectGlobe: Open Distributed Query Processing Services on the Internet , 2001, IEEE Data Eng. Bull..

[140]  Valérie Issarny,et al.  Model-Driven Dependability Analysis of WebServices , 2004, CoopIS/DOA/ODBASE.

[141]  Andrew B. Whinston,et al.  P2P Networking: An Information-Sharing Alternative , 2001, Computer.

[142]  Evaggelia Pitoura,et al.  Multiversion Data Broadcast Organizations , 2002, ADBIS.

[143]  Peter L. Reiher,et al.  Rumor: Mobile Data Access Through Optimistic Peer-to-Peer Replication , 1998, ER Workshops.

[144]  Dimitrios Gunopulos,et al.  Nearest Neighbor Queries in a Mobile Environment , 1999, Spatio-Temporal Database Management.

[145]  Stéphane Grumbach,et al.  Manipulating Interpolated Data is Easier than You Thought , 2000, VLDB.

[146]  Christian S. Jensen,et al.  R-Tree Based Indexing of Now-Relative Bitemporal Data , 1998, VLDB.

[147]  Peter Triantafillou,et al.  Subscription summarization: a new paradigm for efficient publish/subscribe systems , 2004, 24th International Conference on Distributed Computing Systems, 2004. Proceedings..

[148]  Ian T. Foster,et al.  Replica selection in the Globus Data Grid , 2001, Proceedings First IEEE/ACM International Symposium on Cluster Computing and the Grid.

[149]  George Samaras Mobile agents: What about them? Did they deliver what they promised? Are they here to stay? (panel) , 2004, IEEE International Conference on Mobile Data Management, 2004. Proceedings. 2004.

[150]  Timos K. Sellis,et al.  Spatiotemporal Specification & Verification of Multimedia Scenarios , 1999, DS-8.

[151]  Evaggelia Pitoura,et al.  Characterizing the Temporal and Semantic Coherency of Broadcast-Based Data Dissemination , 2003, ICDT.

[152]  Bharat K. Bhargava,et al.  Building information systems for mobile environments , 1994, CIKM '94.

[153]  Krithi Ramamritham,et al.  Efficient concurrency control for broadcast environments , 1999, SIGMOD '99.

[154]  Bharat K. Bhargava,et al.  Data Consistency in Intermittently Connected Distributed Systems , 1999, IEEE Trans. Knowl. Data Eng..

[155]  Heiko Schuldt,et al.  Using Predicates for Specifying Targets of Migration and Messages in a Peer-to-Peer Mobile Agent Environment , 2001, Mobile Agents.

[156]  Elisa Bertino,et al.  An access control mechanism for large scale data dissemination systems , 2001, Proceedings Eleventh International Workshop on Research Issues in Data Engineering. Document Management for Data Intensive Business and Scientific Applications. RIDE 2001.

[157]  Iraklis Varlamis,et al.  Distributed virtual reality authoring interfaces for the WWW , 2000, 2000 IEEE International Conference on Multimedia and Expo. ICME2000. Proceedings. Latest Advances in the Fast Changing World of Multimedia (Cat. No.00TH8532).

[158]  Marian H. Nodine,et al.  Active Information Gathering in InfoSleuth , 1999, CODAS.

[159]  Stéphane Grumbach,et al.  The DEDALE system for complex spatial queries , 1998, SIGMOD '98.

[160]  Stavros Papastavrou Parse & Dispatch: Parallelizing the Generation of Dynamic Web Content , 2003 .

[161]  Dieter Pfoser,et al.  Incremental join of time-oriented data , 1999, Proceedings. Eleventh International Conference on Scientific and Statistical Database Management.

[162]  Paraskevas Evripidou,et al.  The PaCMAn Metacomputer: parallel computing with Java mobile agents , 2001, Future Gener. Comput. Syst..

[163]  Serge Abiteboul,et al.  Extracting schema from semistructured data , 1998, SIGMOD '98.

[164]  Paraskevas Evripidou,et al.  Mobile Agents for Wireless Computing: The Convergence of Wireless Computational Models with Mobile-Agent Technologies , 2004, Mob. Networks Appl..

[165]  Dieter Pfoser,et al.  Synthetic and Real Spatiotemporal Datasets , 2003, IEEE Data Eng. Bull..

[166]  Evaggelia Pitoura,et al.  A Replication Schema to Support Weak Connectivity in Mobile Information Systems , 1996, DEXA.

[167]  Stéphane Grumbach,et al.  On the Orthographic Dimension of Constraint Databases , 1999, ICDT.

[168]  Christian S. Jensen,et al.  Adaptable query optimization and evaluation in temporal middleware , 2001, SIGMOD '01.

[169]  Michalis Vazirgiannis,et al.  HADT: Hypermedia application development tool for tourist applications , 1993 .

[170]  Jennifer Widom,et al.  Continuous queries over data streams , 2001, SGMD.

[171]  Wojciech Szpankowski,et al.  On Pattern Occurrences in a Random Text , 1996, Inf. Process. Lett..

[172]  Christos Doulkeridis,et al.  Querying and Updating a Context-Aware Service Directory in Mobile Environments , 2004, IEEE/WIC/ACM International Conference on Web Intelligence (WI'04).

[173]  Nick Roussopoulos,et al.  MOCHA: a self-extensible database middleware system for distributed data sources , 2000, SIGMOD '00.

[174]  Evaggelia Pitoura,et al.  Distributed Location Databases for Tracking Highly Mobile Objects , 2001, Comput. J..

[175]  Evaggelia Pitoura Providing Database Interoperability through Object-Oriented Language Constructs , 1997, J. Syst. Integr..

[176]  Arie Shoshani,et al.  Extending OLAP querying to external object databases , 2000, CIKM '00.

[177]  Evaggelia Pitoura,et al.  Mobile Agents for World Wide Web Distributed Database Access , 2000, IEEE Trans. Knowl. Data Eng..

[178]  S. Papavassiliou,et al.  Joint optimal channel base station and power assignment for wireless access , 1996, TNET.

[179]  Evaggelia Pitoura,et al.  Energy efficient access in multiversion broadcast environment , 2004, IEEE International Conference on Mobile Data Management, 2004. Proceedings. 2004.

[180]  Christian S. Jensen,et al.  Computational data modeling for network-constrained moving objects , 2003, GIS '03.

[181]  Torben Bach Pedersen,et al.  Multidimensional data modeling for complex data , 1999, Proceedings 15th International Conference on Data Engineering (Cat. No.99CB36337).

[182]  Bharat Bhargava,et al.  Revising transaction concepts for mobile computing , 1994, Workshop on Mobile Computing Systems and Applications.

[183]  Hector Garcia-Molina,et al.  Comparing Hybrid Peer-to-Peer Systems , 2001, VLDB.

[184]  Christos Doulkeridis,et al.  Towards a Context-Aware Service Directory , 2003, TES.

[185]  Victor C. S. Lee,et al.  On the Performance of Transaction Processing in Broadcast Environments , 1999, MDA.

[186]  Christian S. Jensen,et al.  Query plans for conventional and temporal queries involving duplicates and ordering , 2000, Proceedings of 16th International Conference on Data Engineering (Cat. No.00CB37073).

[187]  Serge Abiteboul,et al.  Review - Computable Queries for Relational Data Bases , 1999, ACM SIGMOD Digit. Rev..

[188]  Leandros Tassiulas,et al.  Joint broadcast scheduling and user's cache management for efficient information delivery , 1998, MobiCom '98.

[189]  Hector Garcia-Molina,et al.  Read-only transactions in a distributed database , 1982, TODS.

[190]  Paraskevas Evripidou,et al.  PALLAS: A Querying Interface for Pervasive Computing using Handheld Devices , 2004, The IEEE/ACS International Conference on Pervasive Services.

[191]  Stéphane Grumbach,et al.  Modeling and Querying Interpolated Spatial Data , 1999, Proc. 15èmes Journées Bases de Données Avancées, BDA.

[192]  Dimitrios Gunopulos,et al.  Efficient computation of temporal aggregates with range predicates , 2001, PODS '01.

[193]  Dimitrios Gunopulos,et al.  An Efficient Approach for Approximating Multi-dimensional Range Queries and Nearest Neighbor Classification in Large Datasets , 2001, ICML.

[194]  Michalis Vazirgiannis,et al.  An Object-Oriented Framework for Knowledge Representation Based on Fuzzy Sets , 1993, J. Intell. Fuzzy Syst..

[195]  Paraskevas Evripidou,et al.  CONTEXT-AWARE QUERIES USING QUERY BY BROWSING AND CHIROMANCER , 2004 .

[196]  Christian S. Jensen,et al.  Extending Existing Dependency Theory to Temporal Databases , 1996, IEEE Trans. Knowl. Data Eng..

[197]  Nectaria Tryfona,et al.  Metadata modeling in a global computing environment , 2002, GIS '02.

[198]  M. Tinkham and Group,et al.  Selected Publications , 2004 .

[199]  Serge Abiteboul,et al.  A logical view of structured files , 1998, The VLDB Journal.

[200]  Christian S. Jensen,et al.  Semantics of Time-Varying Information , 1996, Inf. Syst..

[201]  Ajay D. Kshemkalyani,et al.  Reconciling chained and unchained transactional support for distributed systems , 1997, J. Syst. Archit..

[202]  Jacqueline Agnew,et al.  Key Personnel , 1999, Journal of magnetic resonance imaging : JMRI.

[203]  Michael Benedikt,et al.  Reachability and connectivity queries in constraint databases , 2000, J. Comput. Syst. Sci..

[204]  Ian T. Foster,et al.  The anatomy of the grid: enabling scalable virtual organizations , 2001, Proceedings First IEEE/ACM International Symposium on Cluster Computing and the Grid.

[205]  Evaggelia Pitoura,et al.  Mobile agent-based services for view materialization , 2004, MOCO.

[206]  Ben Y. Zhao,et al.  An architecture for a secure service discovery service , 1999, MobiCom.

[207]  Ioana Manolescu,et al.  Managing Distributed Workspaces with Active XML , 2003, VLDB.

[208]  Vassilios V. Dimakopoulos,et al.  A Peer-to-Peer Approach to Resource Discovery in Multi-agent Systems , 2003, CIA.

[209]  Ioana Manolescu,et al.  Active XML: Peer-to-Peer Data and Web Services Integration , 2002, VLDB.

[210]  Peter Triantafillou,et al.  Web Proxy Cache Placement , Replacement , and the ProxyTeller 1 , 2002 .

[211]  Ioannis Fudos,et al.  Thin Client Access to a Visualization Environment , 2004, International Conference on Computational Science.

[212]  Paraskevas Evripidou,et al.  Query by Browsing: A Visual Query Language Based on the Relational Model and the Desktop User Interface Paradigm , 2001 .

[213]  George C. Polyzos,et al.  MobiShare: sharing context-dependent data & services from mobile sources , 2003, Proceedings IEEE/WIC International Conference on Web Intelligence (WI 2003).

[214]  George C. Polyzos,et al.  An Architecture for Sharing , Discovering and Accessing Mobile Data and Services : Location and Mobility Issues * , 2002 .

[215]  Acm Sigmobile,et al.  Proceedings, ACM International Workshop on Data Engineering for Wireless and Mobile Access , 1999 .

[216]  Serge Abiteboul,et al.  Incremental Maintenance for Materialized Views over Semistructured Data , 1998, VLDB.

[217]  Yannis Stavrakas,et al.  A Client-Server Design for Interactive Multimedia Documents Based on Java , 1998, IDMS.

[218]  Torben Bach Pedersen,et al.  Extending Practical Pre-Aggregation in On-Line Analytical Processing , 1999, VLDB.

[219]  Leandros Tassiulas,et al.  Meeting QOS requirements in a cellular network with reuse partitioning , 1994, IEEE J. Sel. Areas Commun..

[220]  Michalis Vazirgiannis,et al.  Structured interactive animation for multimedia documents , 2000, Proceeding 2000 IEEE International Symposium on Visual Languages.

[221]  Gerard Salton,et al.  Automatic Text Processing: The Transformation, Analysis, and Retrieval of Information by Computer , 1989 .

[222]  Arvola Chan,et al.  Implementing Distributed Read-Only Transactions , 1985, IEEE Transactions on Software Engineering.

[223]  Bharat K. Bhargava,et al.  A view-based approach to relaxing global serializability in a multidatabase system , 1995, PODC '95.

[224]  Christian S. Jensen Review - The Logical Access Path Schema of a Database , 2000, ACM SIGMOD Digit. Rev..

[225]  Torben Bach Pedersen,et al.  The TreeScape System: Reuse of Pre-Computed Aggregates over Irregular OLAP Hierarchies , 2000, VLDB.

[226]  Peter Triantafillou,et al.  ProxyTeller: a proxy placement tool for content delivery under performance constraints , 2003, Proceedings of the Fourth International Conference on Web Information Systems Engineering, 2003. WISE 2003..

[227]  Matthias Klusch,et al.  Larks: Dynamic Matchmaking Among Heterogeneous Software Agents in Cyberspace , 2002, Autonomous Agents and Multi-Agent Systems.

[228]  Stéphane Grumbach,et al.  Spatio-Temporal Data Handling with Constraints , 1998, GIS '98.

[229]  Dimitrios Gunopulos,et al.  Adaptive metric nearest neighbor classification , 2000, Proceedings IEEE Conference on Computer Vision and Pattern Recognition. CVPR 2000 (Cat. No.PR00662).

[230]  Ben Y. Zhao,et al.  OceanStore: an architecture for global-scale persistent storage , 2000, SIGP.

[231]  Christian S. Jensen,et al.  Point-versus interval-based temporal data models , 1998, Proceedings 14th International Conference on Data Engineering.

[232]  George Samaras,et al.  A Flexible Personalization Architecture for Wireless Internet Based on Mobile Agents , 2002, ADBIS.

[233]  William E. Weihl Distributed Version Management for Read-Only Actions , 1987, IEEE Trans. Software Eng..

[234]  Ioana Manolescu,et al.  Lazy query evaluation for Active XML , 2004, SIGMOD '04.

[235]  Christian S. Jensen,et al.  Managing Aging Data Using Persistent Views (Extended Abstract) , 2000, CoopIS.

[236]  Christian S. Jensen,et al.  Efficient Differential Timeslice Computation , 1998, IEEE Trans. Knowl. Data Eng..

[237]  Serge Abiteboul,et al.  Object identity as a query language primitive , 1989, SIGMOD '89.

[238]  Dimitrios Gunopulos,et al.  Approximating multi-dimensional aggregate range queries over real attributes , 2000, SIGMOD '00.

[239]  Gaetano Borriello,et al.  Next century challenges: data-centric networking for invisible computing: the Portolano project at the University of Washington , 1999, MobiCom.

[240]  Alfons Kemper,et al.  ObjectGlobe: Ubiquitous query processing on the Internet , 2001, The VLDB Journal.

[241]  Mahadev Satyanarayanan,et al.  A catalyst for mobile and ubiquitous computing , 2002, IEEE Pervasive Computing.

[242]  Daniel R. Miller,et al.  Final report , 2000 .

[243]  Evaggelia Pitoura,et al.  Locating Mobile Objects , 2004, Mobile Computing Handbook.

[244]  Dieter Pfoser,et al.  Novel Approaches in Query Processing for Moving Object Trajectories , 2000, VLDB 2000.

[245]  Richard T. Snodgrass,et al.  A taxonomy of time databases , 1985, SIGMOD Conference.

[246]  Ahmed K. Elmagarmid,et al.  Object-oriented multidatabase systems: an overview , 1995 .

[247]  Paraskevas Evripidou,et al.  Net-Console: A Web-Based Development Environment for MPI Programs , 1999, PVM/MPI.

[248]  George Samaras,et al.  IPMicra: An IP-address based Location Aware Distributed Web Crawler , 2004, International Conference on Internet Computing.

[249]  Bharat K. Bhargava,et al.  Maintaining consistency of data in mobile distributed environments , 1995, Proceedings of 15th International Conference on Distributed Computing Systems.

[250]  Marian H. Nodine,et al.  Capability-based agent matchmaking , 2000, AGENTS '00.

[251]  Evaggelia Pitoura,et al.  Mobile agent procedures: metacomputing in Java , 1999, Proceedings. 19th IEEE International Conference on Distributed Computing Systems. Workshops on Electronic Commerce and Web-based Applications. Middleware.

[252]  Nectaria Tryfona,et al.  The Use of Ontologies in Location-based Services : The Space and Time Ontology in Protégé , 2003 .

[253]  Dimitrios Gunopulos,et al.  Data mining, hypergraph transversals, and machine learning (extended abstract) , 1997, PODS.