Pioneering research in edge computing.


Khalid Mahmood, Kjell Orsborn, Tore Risch: Analytics of IIoT Data Using a NoSQL Datastore,
2021 IEEE International Conference on Smart Computing (SMARTCOMP 21), Irvine, Orange County, California, USA.

Khalid Mahmood, Tore Risch: Scalable Real-Time Analytics for IoT Applications,
2021 IEEE International Conference on Smart Computing (SMARTCOMP 21), Irvine, Orange County, California, USA.


Khalid Mahmood, Kjell Orsborn, Tore Risch, Wrapping a NoSQL Datastore for Stream Analytics,
2020 IEEE 21st International Conference on Information Reuse and Integration for Data Science (IRI),
Las Vegas, NV, USA, 2020, pp. 301-305, 2020


Mahmood, K., Orsborn, K. & Risch, T.
Comparison of NoSQL Datastores for Large Scale Data Stream Log Analytics.
In: 2019 IEEE International Conference on Smart Computing (SMARTCOMP).
Paper presented at 5th IEEE International Conference on Smart Computing (SMARTCOMP), JUN 12-14, 2019, Washington, DC (pp. 478-480). IEEE.


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


S.Badiozamany, K.Orsborn, and T.Risch: Framework
for real-time clustering over sliding windows , 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.


A.Andrejev, D.Misev, P.Baumann, and T.Risch: Spatio-Temporal
Gridded Data Processing on the Semantic Web, 2015 IEEE
International Conference on Data Science and Data
Intensive Systems (DSDIS 2015), Sydney, Australia,
December 11-13, 2015.

K.Mahmood, T.Risch, and M.Zhu: Utilizing
a NoSQL Data Store for Scalable Log Analysis, 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, 27th
International Conference on Scientific and Statistical
Database Management, San Diego, USA, June 29-July
1, 2015

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,
British International Conference on Databases,
Edinburgh, Scotland, July 6-8, 2015.


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.

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

M.Zhu, S.Stefanova, T.Truong, and T.Risch: Scalable
Numerical SPARQL Queries over Relational Databases,
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,
International Conference on Database Systems for Advanced
Applications, DASFAA 2014, Bali, Indonesia, 21-24
April, 2014.


A.Andrejev, S.Toor, A.Hellander, S.Holmgren, and T.Risch: Scientific
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
of Streaming Data, 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. 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
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.


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.

A.Andrejev and T.Risch: Scientific
SPARQL: Semantic Web Queries over Scientific Data,
International Workshop on Data Engineering Meets the
Semantic Web (DESWEB 2012), Washington DC, USA,

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.


M.Zhu and T.Risch: Querying
Cloud-Based and Relational Databases, 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,
7th IEEE International Conference on e-Science,
Stockholm, Sweden, 5th-8th December, 2011.

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

E.Zeitler and T.Risch: Massive
of expensive continuous queries, Proceedings of
the VLDB Endowment, ISSN 2150-8097, Vol. 4, No.
11, p 1181-1188, 2011,
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
in Information and Software as Services, ISBN
978-3-642-19293-7, Springer, 2011.


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

E. Zeitler and T.Risch: Scalable
of Massive Data Streams, 15th
Conf. on Database Systems for Advanced Application, DASFAA
2010., Tsukuba, Japan, 1-4 April, 2010 Addendum: Algebraic
of Maxtree

S. Stefanova and T. Risch: SPARQL
to RDF Views of Topic Maps, International
of Metadata, Semantics and Ontologies (IJMSO),
Inderscience, Vol. 5, No. 1, 2010.


M. Sabesan and T.Risch: Web
Service Query Service, 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, 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  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
Management: Challenges, Existing Technology, and
Deployment, CRC Press, 2009.

M. Sabesan and T.Risch: Adaptive
Parallelization of Queries over Dependent Web Service
Calls, 1st IEEE Workshop on Information &
Software as Services, WISS 2009, Shanghai, China, March,


S.Stefanova and T.Risch: Viewing
and Querying Topic Maps in terms of RDF, SEMMA2008:
International Workshop on Semantic Metadata Management and
Applications, Teneriffe, Spain, June 2008.

G.Gidofalvi, T.B. Pedersen, T.Risch, and E.Zeitler: Highly
Trip Grouping for Large Scale Collective Transportation
Systems, 11th International Conference on
Extending Database Technology, EDBT 2008 , Nantes,
France, March 2008.


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
of Complex Scientific Queries, 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. 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,

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.


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,

E.Zeitler and T.Risch: Processing
stream queries on a supercomputer, ICDE Ph.D.
Workshop 2006, Atlanta, GA, April 2006,


R.Fomkin and T.Risch: Framework
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, 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.


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
over RDF views of wrapped relational databases,
International Workshop on Wrapper Techniques for Legacy
Systems, WRAP 2004, Delft, Holland, November

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. 99–110, 2004

M.Nyström and T.Risch: Engineering
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
Queries to Distributed Engieering Systems, 9th
International Conference on Database Systems for
Advanced Applications (DASFAA 2004), Jeju
Island, Korea, March 17-19, 2004.


H.Ma, H.Johanson, and K.Orsborn:
Distribution and Synchronization of Engineering Information using
Active Database Technology,
The Seventh
International Conference on the Application of Artificial
Intelligence to Civil and Structural Engineering

AICivil-Comp 2003

M.G.Koparanova and T.Risch: High-performance
Stream-oriented GRID Database Manager for Scientific Data,
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, 8th
International Conference on Database Systems for Advanced
Applications (DASFAA 2003), Kyoto, Japan, March 2003.


T,Risch, M.Koparanova, and B.Thide: High
Performance GRID Database Manager for Scientific Data,
4th Distributed Data and Structures, WDAS’03, Paris,
France, pp 99-106, Carleton Scientific, ISBN 1-894145-13-5,

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.

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:
P2P Networking Infrastructure Based on RDF. 11th
International World Wide Web Conference, Honolulu,
Hawaii, USA, May 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
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,


J.Fredriksson, P.Svensson, and T.Risch: Mediator-Based
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
Integration by Object-Oriented Mediator Servers.
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. 5th
Conference on Advances in Databases and Information
Systems, Vilnius, Lithuania, September 25-28, 2001.

Yakham Ndiaye, Aly Wane Diène, Witold Litwin, and Tore
Scalable Distributed Data Manager for Windows
Multicomputers. 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. 2nd
International Workshop on User Interfaces to Data
Intensive Systems, Zürich, Switzerland, May 31 – June
1, 2001


T.Katchanouov, V.Josifovski, T.Risch: Distributed
View Expansion in Object-Oriented Mediators. 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. 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. 1st Intl.
Conf. on Web Information Systems Engineering, (Vol 2),
Hong Kong, China, June 2000, pp 38-45.


V.Josifovski, T.Risch: Integrating
Overlapping Databases through Object-Oriented
Transformations. 25th Intl. Conf. On Very
Large Databases, Edinburgh, Scotland, September 1999.

V.Josifovski, T.Katchaounov, T.Risch: Optimizing
queries in distributed and composable mediators.
4th Intl. Conference on Cooperative Information Systems,
CoopIS’99, Edinburgh, Scotland, September 1999.

K.Orsborn: Accessing
Finite Element Results Through an Extensible Query
Language.  7th Intl. Conf. on Civil and
Structural Engineering (CC99) Oxford, UK, September

C.Tisell, K.Orsborn: Using
an Extensible Object-Oriented Query Language in a
Multibody System Analysis. 7th Intl. Conf.
on Civil and Structural Engineering (CC99) Oxford, UK,
September 1999.

V.Josifovski, T.Risch: Distributed
using a Light-Weight OODBMS.  1st
ECOOP Workshop on Object-Oriented Databases,
Lisbon, Portugal, June 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.


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, 1st
Intl. Conf. on Engineering Computational Technology
(ECT98), Edinburgh, Scotland, August 1998.


G. Fahl,T. Risch:
Query Processing over Object Views of Relational Data,
The VLDB Journal , Vol. 6 No. 4, November 1997, pp

L.Lin, T.Risch: Using
a Sequential Index in Terrain-Aided Navigation.
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. 13th International Conference on
Data Engineering (ICDE’97), (IEEE), Birmingham,
England, 1997


L.Lin, T.Risch, M.Sköld, D.Badal: Indexing
Values of Time Sequences. 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. Fifth International Conference on
Data and Knowledge Systems for Manufacturing and
Engineering (DKSME’96), Phoenix, Arizona, USA, October
24-25, 1996.

K.Orsborn, T.Risch: Next Generation of O-O Database
Techniques in Finite Element Analysis. Third
International Conference on Computational Structures
Technology, Budapest, Hungary, August 21-23, 1996.

T. Padron-McCarthy, T. Risch:
Performance-Polymorphic Execution of Real-Time Queries.
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. 12th
International Conference on Data Engineering (ICDE’96)’,
(IEEE), New Orleans, Louisiana, February 1996.


E. Falkenroth, T. Risch, A. Törne: Using
an Embedded Active Database in a Control System
Architecture. 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. 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. 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


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).


G. Fahl, T. Risch, M. Sköld:
AMOS – An Architecture for Active Mediators. 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. 19th Euromicro Conference,
Barcelona, September 1993. (abstract).

K. Orsborn, T. Risch, B. Torstenfelt: Produktmodellering
med objektorienterade databaser och frågespråk. Workshop
on Product Models (PM-93), Linköping, 26-27 October,
1993. Published in PM-93, ISBN 91-7871-212-2, Linköping


W. Litwin, T. Risch: Main Memory Oriented Optimization
of OO Queries using Typed Datalog with Foreign Predicates.
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).


T.Risch and G.Wiederhold:

Building Adaptive Applications using Active Mediators.
Intl. Conf. on
Database and Expert Systems Applications (DEXA),
Springer-Verlag, 1991.


M.A. Ketabchi, S. Mathur, T. Risch and J. Chen:

Comparative analysis of RDBMS and OODBMS: a case study.

Proceedings of the COMPCON IEEE Computer Society International
Conference, San Francisco, California, 1990, pp. 528-537.


Objects.The 15th  Conf. on Very Large Databases
Amsterdam, Holland, 1989


T.Risch, R.Reboh, P.Hart, and R.Duda:
A functional
approach to integrating database and expert systems. In
Communications of the ACM, 31, 12 (Dec. 1988).

T.Risch: Intensionally Integrating Database and Expert
Systems.1988 Intl. Symposium on Lucid and Intensional
April 7-8, University of Victoria, B.C., Canada, 1988


R.O.Duda, P.E.Hart, R.Reboh, J.Reiter, and T.Risch:

Using a Functional Language for Financial Risk Assessment,

IEEE Expert 2, 3 (Fall 1987).


R.Reboh and T.Risch:
Knowledge programming using functional representations.

AAAI Conf. -86, Philadelphia, Pa., Aug. 11-16, Morgan
Kaufman, Los Altos, Calif., 1986.