Selected Publications

2017

Melander, L., Orsborn, K., Risch, T. & Wedlund, D. VisDM-A Data Stream Visualization Platform. In: Candan, S., Chen, L., Pedersen, T.B., Chang, L., Hua, W. (Ed.), Database Systems For Advanced Applications (DASFAA 2017), Proceedings Pt II. Paper presented at 22nd International Conference on Database Systems for Advanced Applications (DASFAA), MAR 27-30, 2017, Suzhou, PEOPLES R CHINA (pp. 677-680). SPRINGER INTERNATIONAL PUBLISHING AG

C.Xu, E.Källström, T.Risch, J.Lindström, L.Håkansson, and J.Larsson: Scalable Validation of Industrial Equipment using a Functional DSMS, Journal of Intelligent Information Systems, Vol.48, No 3, 553–577, DOI 10.1007/s10844-016-0427-2, 2017.

2016

G. J. Fakas, Z. Cai, N. Mamoulis, Diverse and Proportional Size-l Object Summaries Using Pairwise Relevance, Very Large Data Bases Journal (VLDBJ), 2016.
E. Schiza, G. J. Fakas, C. S. Pattichis, N.Petkov, C. N. Schizas, Security Issues Of Integrated Electronic Health Records (EHRs), MEDICON, 2016.
S.Badiozamany, K.Orsborn, and T.Risch: Framework for real-time clustering over sliding windows , proc. 28th International Conference on Scientific and Statistical Database Management (SSDBM 2016) ACM, ISBN 978-1-4503-3215-5, 2016.
S.Stefanova and T.Risch: Scalable Long-term Preservation of Relational Data through SPARQL queries, Semantic Web Journal, SWJ, Vol.7, No 2, pp 117-137, 2016.

2015

G. J. Fakas, Z. Cai, N. Mamoulis, Diverse and Proportional Size-l Object Summaries for Keyword Search, Proceedings of the ACM Conference on the Management of Data (SIGMOD), 2015.
R. Ahuja, N. Armenatzoglou, D. Papadias, G. J. Fakas, Geo-Social Keyword Search, Proceedings of the International Symposium on Spatial and Temporal Databases (SSTD), Seoul, Korea, August 26-28, 2015.
A.Andrejev, D.Misev, P.Baumann, and T.Risch: Spatio-Temporal Gridded Data Processing on the Semantic Web, presented at 2015 IEEE International Conference on Data Science and Data Intensive Systems (DSDIS 2015), Sydney, Australia, December 11-13, 2015 (slides).

K.Mahmood, T.Risch, and M.Zhu: Utilizing a NoSQL Data Store for Scalable Log Analysis, presented at 19th International Database Engineering & Applications Symposium, Yokohama, Japan, July 13-15, 2015.

T.Truong and T.Risch: Transparent inclusion, utilization, and validation of main memory domain indexes, presented at 27th International Conference on Scientific and Statistical Database Management, San Diego, USA, June 29-July 1, 2015, slides

M.Zhu, K.Mahmood, and T.Risch: Scalable Queries over Log Database Collections, 30th British International Conference on Databases, Edinburgh, Scotland, July 6-8, 2015.

K.Mahmood, T.Truong, and T.Risch: NoSQL Approach to Large Scale Analysis of Persisted Streams, 30th British International Conference on Databases, Edinburgh, Scotland, July 6-8, 2015.

Georgios Kalamatianos, Dimitrios Mallis, Symeon Symeonidis, and Avi Arampatzis. 2015. Sentiment analysis of greek tweets and hashtags using a sentiment lexicon. In Proceedings of the 19th Panhellenic Conference on Informatics (PCI '15). Association for Computing Machinery, New York, NY, USA, 63–68.

2014

G. J. Fakas, Z. Cai, N. Mamoulis, Versatile Size-l Object Summaries for Relational Keyword Search, IEEE Transactions on Knowledge and Data Engineering (TKDE), Volume 26, No. 4, pp 1026-1038, 2014.
A.Andrejev, X.He, and T.Risch: Scientific Data as RDF with Arrays: Tight Integration of SciSPARQL Queries into MATLAB, International Semantic Web Conference, Riva del Garda, Italy, October 2014. (demo video, slide, poster)

S.Badiozamany and T.Risch (supervisor): Distributed multi-query optimization of continuous clustering queries , VLDB PhD Workshop, Hangzouu, China, 2014.

M.Zhu, S.Stefanova, T.Truong, and T.Risch: Scalable Numerical SPARQL Queries over Relational Databases, 4th international workshop on linked web data management (LWDM 2014), Athens, Greece, March 28, 2014.

T.Truong and T.Risch: Scalable Numerical Queries by Algebraic Inequality Transformations, The 19th International Conference on Database Systems for Advanced Applications, DASFAA 2014, Bali, Indonesia, 21-24 April, 2014.

2013

A.Andrejev, S.Toor, A.Hellander, S.Holmgren, and T.Risch: Scientific Analysis by Queries in Extended SPARQL over a Scalable e-Science Data Store, 9th IEEE International Conference on e-Science, Beijing, China, October 2013.

C.Xu, D.Wedlund, M.Helgoson, and T.Risch: Model-based Validation of Streaming Data, The 7th ACM International Conference on Distributed Event-Based Systems, DEBS 2013, Arlington, Texas, USA, June 29 - July 3, 2013.

S.Badiozamany, L.Melander, T.Truong, C.Xu, and T.Risch: Grand Challenge: Implementation by Frequently Emitting Parallel Windows and User-Defined Aggregate Functions, Proc. The 7th ACM International Conference on Distributed Event-Based Systems, DEBS 2013, Arlington, Texas, USA, June 29 - July 3, 2013.

S.Stefanova and T.Risch: Scalable Recreation of RDF-Archived Relational Databases, 5th International Workshop on Semantic Web Information Management - SWIM 2013, New York, New York, USA - June 23, 2013.

M.Leva, M.Mecella, A.Russo, T.Catarci, S.Bergamaschi, A.Malagoli, T.Risch, C.Xu and L.Melander: Visually Querying and Accessing Data Streams in Industrial Engineering Applications, 21st Italian Symposium on Advanced Database Systems, SEBD 2013, Roccella Jonica, Italy, June 30th - July 3rd, 2013.

2012

S.Badiozamany and T.Risch: Scalable ordered indexing of streaming data, Third International Workshop on Accelerating Data Management Systems Using Modern Processor and Storage Architectures, ADMS'12, Istanbul, Turkey, 2012. Slides

A.Andrejev and T.Risch: Scientific SPARQL: Semantic Web Queries over Scientific Data, slides, download SSDM (Windows), presented at The 3rd International Workshop on Data Engineering Meets the Semantic Web (DESWEB 2012), Washington DC, USA, 2012.

M.Sabesan and T.Risch: Adaptive Parallelization of Queries to Data Providing Web Service Operations, Transactions on Large-Scale Data- and Knowledge-Centered Systems, Volume V, ISBN 978-3-642-28147-1, Springer, 2012.

2011

G. J. Fakas, Z. Cai, N. Mamoulis, Size-l Object Summaries for Relational Keyword Search, Proceedings of the VLDB Endowment (PVLDB), Volume 5, Issue 3, pp 229-240, 2011.
G. J. Fakas, B. Cawley, Z. Cai, Automated Generation of Personal Data Reports from Relational Databases, Journal of Information and Knowledge Management (JIKM), World Scientific, Volume 10, Issue 2, pp 1-16, 2011.
G. Fakas, Automated Generation of Object Summaries from Relational Databases: A Novel Keyword Searching Paradigm, Data & Knowledge Engineering (DKE), Elsevier, Volume 70, Issue 2, pp 208-229, 2011.
M.Zhu and T.Risch: Querying Combined Cloud-Based and Relational Databases, presented at The 2011 International Workshop on Data Cloud (D-CLOUD 2011), December 12, Hong Kong, 2011.

S.Toor, M.Sabesan, S.Holmgren, and T.Risch: A Scalable Architecture for e-Science Data Management, presented at 7th IEEE International Conference on e-Science, Stockholm, Sweden, 5th-8th December, 2011.

S.Stefanova and T.Risch: Optimizing Unbound-property Queries to RDF Views of Relational Databases, presented at The 7th International Workshop on Scalable Semantic Web Knowledge Base Systems (SSWS2011), Bonn, Germany, October 2011.

E.Zeitler and T.Risch: Massive scale-out of expensive continuous queries, Proceedings of the VLDB Endowment, ISSN 2150-8097, Vol. 4, No. 11, p 1181-1188, 2011, slides presented at 37th International Conference on Very Large Databases, VLDB 2011.
M.Sabesan and T.Risch: Adaptive Parallelization of Queries Calling Dependent Data Providing Web Services, chapter in D.Agrawal, K.S.Candan, W-S.Li (eds.): New Frontiers in Information and Software as Services, ISBN 978-3-642-19293-7, Springer, 2011.

2010

M. Sabesan, T. Risch, and F. Luan: Automated Web Service Query Service, International Journal of Web and Grid Services (IJWGS), Inderscience, Volume 6, Number 4, 2010.

E. Zeitler and T.Risch: Scalable Splitting of Massive Data Streams, in Proc. 15th Conf. on Database Systems for Advanced Application, DASFAA 2010., Tsukuba, Japan, 1-4 April, 2010 Addendum: Algebraic derivation of Maxtree
S. Stefanova and T. Risch: SPARQL Queries to RDF Views of Topic Maps, International Journal of Metadata, Semantics and Ontologies (IJMSO), Inderscience, Vol. 5, No. 1, 2010.

2009

G. Fakas, Z. Cai, Ranking of Object Summaries, DBRank Workshop 2009, ICDE 2009.
B. Karakostas, G. Fakas, An Architecture for Reliable Mobile Workflow in a Grid Environment, Fourth International Conference on Internet and Web Applications and Services, Venice, May 2009.
M. Sabesan and T.Risch: Web Service Query Service, Proc. 11th International Conference on Information Integration and Web-based Applications & Services, 14-16 December, Kuala Lumpur, Malaysia, 2009.
M. Johanson, L. Karlsson, and T. Risch: Relaying Controller Area Network Frames over Wireless Internetworks for Automotive Testing Applications, The Fourth International Conference on Systems and Network Communications, ICSNC 2009, September 20-25, 2009, Porto, Portugal.
R. Fomkin and T.Risch: Optimization and Execution of Complex Scientific Queries over Uncorrelated Experimental Data Proc. 21st International Conference on Scientific and Statistical Database Management (SSDBM 2009) , New Orleans, Louisiana USA, June 2-4, 2009.
T. Risch, J. Gehrke, S. Madden, H. Balakrishan, L. Girod, M. Ivanova, R. Newton, B. Panda, M. Riedewald, and E. Zeitler: Analyzing data streams in scientific applications, chapter in upcoming book: Arie Shoshani and Doron Rotem (editors): Scientific Data Management: Challenges, Existing Technology, and Deployment, CRC Press, 2009.
T.Risch: Distributed Architecture, entry in Ling Liu and M. Tamer Özsu (editors): Encyclopedia of Database Systems, Springer, 2009.
M. Sabesan and T.Risch: Adaptive Parallelization of Queries over Dependent Web Service Calls, Proc. 1st IEEE Workshop on Information & Software as Services, WISS 2009, Shanghai, China, March, 2009.

2008

G. Fakas, Automated Generation of Object Summaries from Relational Databases: A Novel Keyword Searching Paradigm, DBRank Workshop 2008, ICDE 2008. (Presentation, Demo)
S.Stefanova and T.Risch: Viewing and Querying Topic Maps in terms of RDF, SEMMA2008: First International Workshop on Semantic Metadata Management and Applications, Teneriffe, Spain, June 2008.
G.Gidofalvi, T.B. Pedersen, T.Risch, and E.Zeitler: Highly Scalable Trip Grouping for Large Scale Collective Transportation Systems, Proc. 11th International Conference on Extending Database Technology, EDBT 2008 , Nantes, France, March 2008.

2007

J.Petrini and T.Risch: SWARD: Semantic Web Abridged Relational Databases, 6th International Workshop on Web Semantics, WEBS 2007, Regensburg, Germany, September 2007.
R.Fomkin and T.Risch: Cost-based Optimization of Complex Scientific Queries, Proc. 19th International Conference on Scientific and Statistical Database Management (SSDBM 2007) , Banff, Canada, July 9-11, 2007.
E.Zeitler and T.Risch: Using stream queries to measure communication performance of a parallel computing environment.Proc. First International Workshop on Distributed Event Processing, Systems and Applications (DEPSA), Toronto, Canada, June 29, 2007.

M.Sabesan and T.Risch: Web Service Mediation Through Multi-level Views, Proc. International Workshop on Web Information Systems Modeling (WISM 2007), Trondheim, Norway, June 12, 2007.

H.Ma and T.Risch: A Database Approach for Information Communication in a Peer-to-Peer Collaborative CAD Environment . Software - Practice and Experience J. Vol. 37, No. 11, John Wiley & Sons, Ltd., 2007.

2006

E. Kyriacou, G. Fakas, V. Pavlaki, A Completely Decentralized Workflow Management System for the Support of Emergency Telemedicine and Patient Monitoring, 28th IEEE EMBS Annual International Conference, Aug 30-Sept. 3, 2006, New York City, New York, USA.
S.Koch, T.Risch, W.Schneider and I.V.Wagner: An Object-relational Model for Structured representation of Medical Knowledge , International Journal of Computerized Dentistry, No 9, December 2006, pp 237-252
M.Sabesan, T.Risch, G.Wikramanayake: Querying Mediated Web Services , 8th International Information Technology Conference, IITC 2006, Colombo, Sri Lanka, 2006
E.Zeitler and T.Risch: Processing high-volume stream queries on a supercomputer, ICDE Ph.D. Workshop 2006, Atlanta, GA, April 2006,

2005

G. Fakas, A. V. Nguyen and D. Gillet, The Electronic Laboratory Journal: A Web-Based Collaborative Environment for Remote Experimentation, Computer Supported Cooperative Work (CSCW): The Journal of Collaborative Computing, Kluwer Academic Publisher, Volume 14, Number 3, pp 189–216, 2005.
G. Fakas, I. Lamprianou, A. Andreou, M. Pampaka, C. Schizas, The Evaluation of Cultural Journeys in the Information Society (CJIS) Environment as an Educational Aid, Computers & Education Journal, Elsevier, Volume 45, Issue 1, pp. 123-139, 2005.
Ph. Thiran, T. Risch, C. Costilla, J. Henrard, Th. Kabisch, J. Petrini, W-J. van den Heuvel, and J-L. Hainaut: Report on the Workshop on Wrapper Techniques for Legacy Data Systems SIGMOD Record, Vol. 34, No. 3, Sept. 2005, pp. 85-86.

R.Fomkin and T.Risch: Framework for Querying Distributed Objects Managed by a Grid Infrastructure, 1st International Workshop on Data Management in Grids (DMG'05), Trondheim, Norway, September 2-3, 2005.

M.Ivanova and T.Risch: Customizable Parallel Execution of Scientific Stream Queries, Proc. 31st International Conference on Very Large Databases, VLDB2005, Trondheim, Norway, 2005, pp 157-168. Based on Technical report 2005-012, Department of Information Technology, Uppsala University, ISSN 1404-3203.

2004

G. Fakas, B. Karakostas, A Peer to Peer Architecture for Dynamic Workflow Management, Information and Software Technology Journal, Elsevier, Volume 46, Issue 6, pp 423-431, 2004.
G. Fakas, A. Kakas, C. Schizas, Electronic Roads: Intelligent Navigation Through Multi-Contextual Information, Knowledge and Information Systems, International Journal, Springer, Volume 6, Issue 1, pp. 103–124, 2004.
T.Risch: Functional Queries to Wrapped Educational Semantic Web Meta-data in P.Gray, L.Kerschberg, P.King, and A.Poulovassilis (eds.): Functional Approach to Data Management - Modeling, Analyzing and Integrating Heterogeneous Data, Springer, ISBN 3-540-00375-4, 2004.
T.Risch, V.Josifovski, and T.Katchaounov: Functional Data Integration in a Distributed Mediator System, in P.Gray, L.Kerschberg, P.King, and A.Poulovassilis (eds.): Functional Approach to Data Management - Modeling, Analyzing and Integrating Heterogeneous Data, Springer, ISBN 3-540-00375-4, 2004.
K.Orsborn, T.Risch, and S.Flodin: Representing Matrices Using Multi-Directional Foreign Functions, in P.Gray, L.Kerschberg, P.King, and A.Poulovassilis (eds.): Functional Approach to Data Management - Modeling, Analyzing and Integrating Heterogeneous Data, Springer, ISBN 3-540-00375-4, 2004.
J.Petrini and T.Risch: Processing queries over RDF views of wrapped relational databases, in Proc. 1st International Workshop on Wrapper Techniques for Legacy Systems, WRAP 2004, Delft, Holland, November 2004.

R.Fomkin and T.Risch: Managing Long Running Queries in Grid Environment, 1st Intl. Workshop on GRID Computing and its Applications to Data Analysis (GADA'04), Lacarna, Cyprus, Oct. 2004, in R. Meersman et al. (Eds.): OTM Workshops 2004, LNCS 3292, pp. 99110, 2004
M.Nyström and T.Risch: Engineering Information Integration using Object-Oriented Mediator Technology, Software - Practice and Experience J., Vol. 34, No. 10, pp 949-975, John Wiley & Sons, Ltd., August 2004.
T.Risch: Mediators for Querying Heterogeneous Data, in M.P.Singh (ed.): The Practical Handbook of Internet Computing, ISBN 1584883812, Chapman & Hall/CRC, USA, June 2004.
M.Nyström and T.Risch: Optimising Mediator Queries to Distributed Engieering Systems, Proc. 9th International Conference on Database Systems for Advanced Applications (DASFAA 2004), Jeju Island, Korea, March 17-19, 2004.

2003

M.G.Koparanova and T.Risch: High-performance Stream-oriented GRID Database Manager for Scientific Data, Proc. 1st European Across Grids Conference, Universidad de Santiago de Compostela, Spain, Feb. 13-14, 2003.
T.Katchaounov, V.Josifovski, and T.Risch: Scalable View Expansion in a Peer Mediator System, Proc. 8th International Conference on Database Systems for Advanced Applications (DASFAA 2003), Kyoto, Japan, March 2003.

2002

B. Karakostas, D. Panayiotakis, G. Fakas, Workflow Requirements Modelling Using XML, Requirements Engineering Journal, Springer, Volume 7, Issue 3, pp 124-138, 2002.
T,Risch, M.Koparanova, and B.Thide: High Performance GRID Database Manager for Scientific Data, Proc. 4th Distributed Data and Structures, WDAS'03, Paris, France, pp 99-106, Carleton Scientific, ISBN 1-894145-13-5, 2002
T. Katchaounov, T. Risch, and S. Zürcher: Object-Oriented Mediator Queries to Internet Search Engines, International Workshop on Efficient Web-based Information Systems (EWIS), Montpellier, France, September, 2002.
W.Litwin, T.Risch, and Th.Schwarz: An Architecture for a Scalable Distributed DBS: Application to SQL Server 2000, 2nd Intl. Workshop on Cooperative Internet Computing (CIC 2002), August, 2002, Hong Kong.
M.Koparanova and T.Risch: Completing CAD Data Queries for Visualization, International Database Engineering and Applications Symposium (IDEAS 2002), Edmonton, Alberta, Canada, July 17-19, 2002.
W.Neidl, B.Wolf, C.Qu, S.Decker, M.Sinek, A.Naeve, M.Nilsson, M.Palmér, and T.Risch: EDUTELLA: A P2P Networking Infrastructure Based on RDF. Presented at 11th International World Wide Web Conference, Honolulu, Hawaii, USA, May 2002.
W.Litwin, T.Risch: LH*g : a High-availability Scalable Distributed Data Structure by Record Grouping. IEEE Transactions on Knowledge and Data Engineering, 14 (4), pp 923-927, July/August 2002.
H.Lin, T.Risch, and T.Katchanounov: Adaptive data mediation over XML data. In special issue on Web Information Systems Applications of Journal of Applied System Studies (JASS), Cambridge International Science Publishing, 3(2), 2002.
V.Josifovski, T.Risch: Query Decomposition for a Distributed Object-Oriented Mediator System. Distributed and Parallel Databases J., Kluwer, May 2002.
T. Katchaounov: Query Processing in Self-Profiling Composable Peer-to-Peer Mediator Databases. EDBT PhD Workshop, Prague, Czech Republic, March 2002, in EDBT Workshops 2002, Lecture Notes in Computer Science 2490, 627-637, Springer Verlag, 2002.

2001

J.Fredriksson, P.Svensson, and T.Risch: Mediator-Based Evolutionary design and Development of Image Meta-Analysis Environments, Journal of Intelligent Information Systems, Vol 17, No. 2-3, 301-322, 2001.
P.Roland, G.Svensson, T.Lindeberg, T.Risch, P.Baumann, A.Dehmel, J.Fredriksson, H.Halldorson, L.Forsberg, J.Young, and K.Zilles: A database generator for human brain imaging, TRENDS in Neurosciences, Vol. 24, No 10, October 2001.
T.Risch, V.Josifovski: Distributed Data Integration by Object-Oriented Mediator Servers. Concurrency and Computation: Practice and Experience J. 13(11), John Wiley & Sons, September, 2001.
V.Josifovski, T.Katchaounov, T.Risch: Evaluation of Join Strategies for Distributed Mediation. Proc. 5th East-European Conference on Advances in Databases and Information Systems, Vilnius, Lithuania, September 25-28, 2001.
Yakham Ndiaye, Aly Wane Diène, Witold Litwin, and Tore Risch: AMOSSDDS: A Scalable Distributed Data Manager for Windows Multicomputers. Proc. 14th International Conference on Parallel and Distributed Computing Systems, Dallas, Texas, August 8-10, 2001.
K.Cassel, T.Risch: An Object-Oriented Multi-Mediator Browser. Presented at 2nd International Workshop on User Interfaces to Data Intensive Systems, Zürich, Switzerland, May 31 - June 1, 2001

2000

T.Katchanouov, V.Josifovski, T.Risch: Distributed View Expansion in Object-Oriented Mediators. In Proc. 5th Intl. Conference on Cooperative Information Systems, CoopIS'00, Eilat, Israel, Lecture Notes in Computer Science 1901, Springer Verlag, 2000, pp 144-149.
P.Komodromos, K.Orsborn: Use of database technology for coupled discrete-finite element simulations of multibody systems. Presented at 2nd International Conference on Engineering Computational Technology (ECT2000), Leuven, Belgium, 6-8 September 2000. In B.H.V.Topping (ed.): Finite Element Techniques and Developments, Civil-Comp Press, ISBN 0-948749-67-9, 2000, pp 199-206.
Y.Ndiaye, A.W.Diene, W.Litwin, T.Risch: Scalable Distributed Datastructures for High-Performance Databases. In Proc. 3rd Workshop on Distributed Data and Structures (WDAS'2000), L'Aquila, Italy, 2000.
H. Lin, T. Risch, T.Katchaounov: Object-Oriented Mediator Queries to XML Data. In Proc. 1st Intl. Conf. on Web Information Systems Engineering, (Vol 2), Hong Kong, China, June 2000, pp 38-45.

Research Reports
T.Katchanouov, V.Josifovski, T.Risch: Distributed View Expansion in Composable Mediators , Technical Report 2000:2, Dept. Information Science, Uppsala University, Sweden, 2000.
E.Toller, T.Risch: An Object-Relational Model for Musical Data, Technical Report 2000:3, Dept. Information Science, Uppsala University, Sweden, 2000.
T. Risch, V. Josifovski, and T. Katchaounov: Amos II Concepts, Technical Report, Uppsala DataBase Laboratory, Dept. Information Science, Uppsala University, Sweden, 2000.

1999

V.Josifovski, T.Risch: Integrating Heterogeneous Overlapping Databases through Object-Oriented Transformations. In Proc. 25th Intl. Conf. On Very Large Databases, Edinburgh, Scotland, September 1999.
V.Josifovski, T.Katchaounov, T.Risch: Optimizing queries in distributed and composable mediators. In Proc. 4th Intl. Conference on Cooperative Information Systems, CoopIS'99, Edinburgh, Scotland, September 1999.
K.Orsborn: Accessing Finite Element Results Through an Extensible Query Language. In Proc. 7th Intl. Conf. on Civil and Structural Engineering (CC99) Oxford, UK, September 1999.
C.Tisell, K.Orsborn: Using an Extensible Object-Oriented Query Language in a Multibody System Analysis. In Proc. 7th Intl. Conf. on Civil and Structural Engineering (CC99) Oxford, UK, September 1999.
V.Josifovski, T.Risch: Distributed Mediation using a Light-Weight OODBMS. In 1st ECOOP Workshop on Object-Oriented Databases, Lisbon, Portugal, June 1999.
W.Litwin, J.Menon, T.Risch, T.J.E.Schwarz: Design Issues for Scalable Availability LH* Schemes with Record Grouping. In DIMACS Workshop on Distributed Data and Structures (WDAS'99), Princetone U., Carleton Scientific, May 1999.
V.Josifovski, T.Risch: Functional Query Optimization over Object-Oriented Views for Data Integration Journal of Intelligent Information Systems (JIIS), Vol. 12, No. 2-3, 1999.
T.Risch, M. Sköld: Monitoring Complex Rule Conditions,
in N. Paton (ed.): Active Rules in Database Systems, Springer-Verlag, New York, 1999, ISBN 0-387-98529-8.

1998

S.Flodin, K.Orsborn, T. Risch: Using Queries with Multi-Directional Functions for Numerical Database Applications , Second East-European Symposium on Advances in Databases and Information Systems (ADBIS'98) , Poznan, Poland, September 1998.
V.Josifovski, T.Risch: Calculus-based Transformations of Queries over Object-Oriented Views in a Database Mediator System, 3rd IFCIS International Conference on Cooperative Information Systems, CoopIS'98, New York City, August 1998.
L.Lin, T. Risch: Querying Continuous Time Sequences , 24th International Conference on Very Large Data Bases (VLDB'98), New York City, USA, August 1998.
C. Tisell, K. Orsborn: A system for multibody analysis based on object-relational database technology, The 1st Intl. Conf. on Engineering Computational Technology (ECT98), Edinburgh, Scotland, August 1998.

1997

G. Fahl,T. Risch: Query Processing over Object Views of Relational Data, The VLDB Journal , Vol. 6 No. 4, November 1997, pp 261-281.
V.Josifovski, S. Y. W. Su: Integration of a Pattern-Based Object-Oriented Query Language with the ODMG-93 Standard. In The Sixth International Conference on Information and Knowledge Management (CIKM'97), (ACM), Las Vegas, Nevada, USA, November 10-14, 1997.
L.Lin, T.Risch: Using a Sequential Index in Terrain-Aided Navigation. In The Sixth International Conference on Information and Knowledge Management (CIKM'97), (ACM), Las Vegas, Nevada, USA, November 10-14, 1997.
T.Padron-McCarthy, T.Risch: Optimizing Performance-Polymorphic Declarative Database Queries. In A.Bestravros, K-J.Lin, S.H.Son (eds.): Real-Time Database and Information Systems. Research Advances Kluwer Academic Publishers, ISBN 0-7923-8011-8, 1997.
Presented at: Second International Workshop on Real-Time Databases (RTDB'97) , Burlington, Vermont, USA, September 18-19, 1997.
S.Grufman, F.Samson, S.M.Embury, P.M.D. Gray, T.Risch: Distributing Semantic Constraints Between Heterogeneous Databases. The 13th International Conference on Data Engineering (ICDE'97), (IEEE), Birmingham, England, 1997

1996

L.Lin, T.Risch, M.Sköld, D.Badal: Indexing Values of Time Sequences. In The Fifth International Conference on Information and Knowledge Management (CIKM'96), (ACM), Rockville, Maryland, USA, November 12-16, 1996.
K. Orsborn: Management of Product Data Using an Extensible Obect-Oriented Query Language. In The Fifth International Conference on Data and Knowledge Systems for Manufacturing and Engineering (DKSME'96), Phoenix, Arizona, USA, October 24-25, 1996. Based on Technical Report LiTH-IDA-R-93-15, Department of Computer and Information Science, Linköping University, Sweden, 1993 (abstract)
K.Orsborn, T.Risch: Next Generation of O-O Database Techniques in Finite Element Analysis. In The Third International Conference on Computational Structures Technology, Budapest, Hungary, August 21-23, 1996.
J.S. Karlsson, W. Litwin, T. Risch: LH*lh : A Scalable High Performance Data Strucuture for Switched Multicomputers. In The 5th International Conference on Extending Database Technology (EDBT'96) Avignon, France, March 1996.
T. Padron-McCarthy, T. Risch: Performance-Polymorphic Execution of Real-Time Queries. In the First Workshop on Real-Time Databases: Issues and Applications (RTDB-96), March 7-8, 1996, Newport Beach, California, USA.
M. Sköld, T. Risch: Using Partial Differencing for Efficient Monitoring of Deferred Complex Rule Conditions. In The 12th International Conference on Data Engineering (ICDE'96)', (IEEE), New Orleans, Louisiana, February 1996.

1995

E. Falkenroth, T. Risch, A. Törne: Using an Embedded Active Database in a Control System Architecture. In 2nd International Conference on Applications of Databases (ADB-95), Santa Clara, California, December 1995.
S. Flodin, T. Risch: Processing Object-Oriented Queries with Invertible Late Bound Functions. In The 21st International Conference on Very Large Data Bases (VLDB'95)., Zurich, Switzerland, September 11-15, 1995.
M. Sköld, E. Falkenroth, T. Risch: Rule Contexts in Active Databases - A Mechanism for Dynamic Rule Grouping. In Rules in Database Systems (RIDS'95), Athens, Greece, September 25-27, 1995, Springer Lecture Notes in Computer Science, ISBN 3-540-60365-4, pp. 119-130, 1995

1994

K. Orsborn: Applying Next Generation Object-Oriented DBMS to Finite Element Analysis. In Witold Litwin, Tore Risch(eds.): Application of Databases, 1st Intl. Conf. (ADB-94), Vadstena, Sweden, June 21-23, 1994 (Proceedings), Lecture Notes in Computer Science, Springer Verlag, ISBN 3-540-58183-9, 1994. (abstract).

1993

G. Fahl, T. Risch, M. Sköld: AMOS - An Architecture for Active Mediators. In Proc. Workshop on Next Generation Information Technologies and Systems (NGITS'92), Haifa, Israel, June 1993,
P. Loborg, T. Risch, M. Sköld, A. Törne: Active Object Oriented Databases in Control Applications. In Proceedings of the 19th Euromicro Conference, Barcelona, September 1993. (abstract).
K. Orsborn, T. Risch, B. Torstenfelt: Produktmodellering med objektorienterade databaser och frågespråk. In Proc. Workshop on Product Models (PM-93), Linköping, 26-27 October, 1993. Published in PM-93, ISBN 91-7871-212-2, Linköping 1993.

1992

W. Litwin, T. Risch: Main Memory Oriented Optimization of OO Queries using Typed Datalog with Foreign Predicates. In IEEE Transactions on Knowledge and Data Engineering 4(6), pp. 517-528, 1992 Available in PDF.
T. Risch, M. Sköld: Active Rules based on Object-Oriented Queries. In special issue on Active Databases in Data Engineering Bulletin 15(1-4), pp. 27-30, 1992 (abstract).

UDBL Publications