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Author: van Keulen, M.
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2013

Habib, M.B. and van Keulen, M. (2013) A hybrid approach for robust multilingual toponym extraction and disambiguation. In: Proceedings of the International Conference on Language Processing and Intelligent Information Systems (LP&IIS 2013), 17-18 June 2013, Warsaw, Poland. Lecture Notes in Computer Science. Springer Verlag.
Habib, M.B. and van Keulen, M. and Zhu, Zhemin (2013) Concept Extraction Challenge: University of Twente at \#MSM2013. In: Proceedings of the 3rd workshop on 'Making Sense of Microposts' (\#MSM2013), 13 May 2013, Rio de Janeiro, Brazil. CEUR.
Hofste, J. and Henseler, H. and van Keulen, M. (2013) Computer assisted extraction, merging and correlation of identities with Tracks Inspector. In: Proceedings of the International Conference on Artificial Intelligence and Law (ICAIL 2013), 10-14 June 2013, Rome, Italy. ACM.
Panse, F. and Ritter, N. and van Keulen, M. (2013) Indeterministic Handling of Uncertain Decisions in Deduplication. Journal of Data and Information Quality, 4 (2). 9. ISSN 1936-1955

2012

de Graaff, V. and van Keulen, M. and de By, R.A. (2012) Towards Geosocial Recommender Systems. In: 4th International Workshop on Web Intelligence & Communities (WI&C 2012), 16 Apr 2012, Lyon, France. 8:1-8:4. ACM. ISBN 978-1-4503-1189-2
Habib, M.B. and van Keulen, M. (2012) Improving Toponym Extraction and Disambiguation Using Feedback Loop. In: Proceedings of the 12th International Conference on Web Engineering (ICWE 2012), 23-27 Jul 2012, Berlin, Germany. pp. 439-443. Lecture Notes in Computer Science . Springer Verlag. ISBN 978-3-642-31753-8
Habib, M.B. and van Keulen, M. (2012) Improving Toponym Disambiguation by Iteratively Enhancing Certainty of Extraction. In: Proceedings of the 14th International Conference on Knowledge Discovery and Information Retrieval, KDIR 2012, 4-7 Oct 2012, Barcelona, Spain. pp. 399-410. SciTePress. ISBN 978-989-8565-29-7
Habib, M.B. and van Keulen, M. (2012) Unsupervised improvement of named entity extraction in short informal context using disambiguation clues. In: Workshop on Semantic Web and Information Extraction, SWAIE 2012, 8-12 Oct 2012, Galway, Ireland. pp. 1-10. CEUR Workshop Proceedings 925. CEUR-WS.org. ISSN 1613-0073
van Keulen, M. (2012) Managing Uncertainty: The Road Towards Better Data Interoperability. IT - Information Technology, 54 (3). pp. 138-146. ISSN 1611-2776
Khelghati, S.M. and Hiemstra, D. and van Keulen, M. (2012) Size Estimation of Non-Cooperative Data Collections. In: Proceedings of the 14th International Conference on Information Integration and Web-based Applications & Services (iiWAS2012), 3-5 December 2012, Bali, Indonesia. pp. 239-246. ACM. ISBN 978-1-4503-1306-3
Khelghati, S.M. and Hiemstra, D. and van Keulen, M. (2012) Size estimation of non-cooperative data collections. In: The Dutch-Belgian Database Day 2012, 21 Nov 2012, Brussels, Belgium. Université Libre de Bruxelles.
Khelghati, S.M. and Hiemstra, D. and van Keulen, M. (2012) Deep web entity monitoring. Technical Report TR-CTIT-13-02, Centre for Telematics and Information Technology, University of Twente, Enschede. ISSN 1381-3625

2011

Boerman, T.W. and van Keulen, M. and van der Vet, P.E. and Severing, E.I. (2011) Integration of Biological Sources: Exploring the Case of Protein Homology. Technical Report TR-CTIT-11-18, Centre for Telematics and Information Technology University of Twente, Enschede. ISSN 1381-3625
Habib, M.B. and van Keulen, M. (2011) Information Extraction, Data Integration, and Uncertain Data Management: The State of The Art. Technical Report TR-CTIT-11-06, Centre for Telematics and Information Technology University of Twente, Enschede. ISSN 1381-3625
Habib, M.B. and van Keulen, M. (2011) Neogeography: The Challenge of Channelling Large and Ill-Behaved Data Streams. Technical Report TR-CTIT-11-08, Centre for Telematics and Information Technology University of Twente, Enschede. ISSN 1381-3625
Habib, M.B. and van Keulen, M. (2011) Named Entity Extraction and Disambiguation: The Reinforcement Effect. In: Proceedings of the 5th International Workshop on Management of Uncertain Data, MUD 2011, 29 Aug 2011, Seatle, USA. pp. 9-16. CTIT Workshop Proceedings Series WP11-02. Centre for Telematics and Information Technology University of Twente. ISSN 0929-0672
Habib, M.B. and van Keulen, M. (2011) Improving Named Entity Disambiguation by Iteratively Enhancing Certainty of Extraction. Technical Report TR-CTIT-11-29, Centre for Telematics and Information Technology University of Twente, Enschede. ISSN 1381-3625
Habib, M.B. and van Keulen, M. (2011) Named Entity Extraction and Disambiguation from an Uncertainty Perspective. In: Proceedings of the Dutch Belgian Database Day, DBDBD 2011, 2 Dec 2011, University of Twente, The Netherlands. 12. Centre for Telematics and Information Technology, University of Twente . ISBN not assigned
de Keijzer, A. and van Keulen, M. (2011) Preface. In: The Fifth International VLDB Workshop on Management of Uncertain Data (MUD). CTIT Workshop Proceedings (WP11-02). Centre for Telematics and Information Technology University of Twente, Enschede, The Netherlands, v-v. ISSN 0929-0672
van Keulen, M. and Habib, M.B. (2011) Handling uncertainty in information extraction. In: of the 7th International Workshop on Uncertainty Reasoning for the Semantic Web (URSW 2011), 23 Oct 2011, Bonn, Germany. pp. 109-112. CEUR Workshop Proceedings 778. CEUR-WS.org. ISSN 1613-0073

2010

Abdel Kader, R. and Boncz, P.A. and Manegold, S. and van Keulen, M. (2010) ROX: The Robustness of a Run-time XQuery Optimizer Against Correlated Data. In: Proceedings of the 26th International Conference on Data Engineering (ICDE2010), 1-6 Mar 2010, Long Beach, California, USA. pp. 1185-1188. IEEE Computer Society. ISBN 978-1-4244-5444-0
Abdel Kader, R. and van Keulen, M. and Boncz, P.A. and Manegold, S. (2010) Run-time Optimization for Pipelined Systems. In: Proceedings of the IV Alberto Mendelzon Workshop on Foundations of Data Management (AMW2010), 17-20 May 2010, Buenos Aires, Argentina. 15.1-15.12. CEUR Workshop Proceedings 619. CEUR-WS.org. ISSN 1613-0073
Hollander, E.S. and van Keulen, M. (2010) Storing and Querying Probabilistic XML Using a Probabilistic Relational DBMS. In: Proceedings of the 4th International Workshop on Management of Uncertain Data (MUD 2010), 13 Sep 2010, Singapore. pp. 35-49. CTIT Workshop Proceedings Series WP10-04. Centre for Telematics and Information Technology University of Twente. ISSN 0929-0672
van Keulen, M. (2010) Onzekere databases. DB/M: database magazine, 21 (4). pp. 22-27. ISSN 0925-6911
Panse, F. and van Keulen, M. and de Keijzer, A. and Ritter, N. (2010) Duplicate Detection in Probabilistic Data. In: Proceedings of the 2nd International Workshop on New Trends in Information Integration (NTII 2010), 5-6 Mar 2010, Long Beach, California, USA. pp. 179-182. IEEE Computer Society. ISBN 978-1-4244-6522-4
Panse, F. and van Keulen, M. and Ritter, N. (2010) Indeterministic Handling of Uncertain Decisions in Duplicate Detection. Technical Report TR-CTIT-10-21, Centre for Telematics and Information Technology University of Twente, Enschede. ISSN 1381-3625

2009

Abdel Kader, R. and Boncz, P.A. and Manegold, S. and van Keulen, M. (2009) ROX: Run-Time Optimization of XQueries. In: Proceedings of the 35th ACM SIGMOD International Conference on Management of Data (SIGMOD2009), 29 June - 02 July 2009, Providence, Rhode Island, USA. pp. 615-626. ACM. ISBN 978-1-60558-551-2
de Keijzer, A. and van Keulen, M. (2009) Preface. In: Proceedings of the Third International Workshop on Management of Uncertain Data (MUD2009), 28 Aug 2008, Lyon, France. 3. CTIT Workshop Proceedings Series (WP-CTIT-09-14). Centre for Telematics and Information Technology University of Twente. ISSN 1574-0846
van Keulen, M. (2009) Probabilistic Data Integration. (Invited) In: 08421 Abstracts Collection - Uncertainty Management in Information Systems, 12 - 17 Oct 2008, Dagstuhl, Germany. pp. 8-8. Dagstuhl Seminar Proceedings (08421). Schloss Dagstuhl - Leibniz-Zentrum fuer Informatik. ISSN 1862-4405
van Keulen, M. (2009) IMPrECISE: Good-is-good-enough Data Integration. In: 08421 Abstracts Collection - Uncertainty Management in Information Systems, 12 - 17 Oct 2008, Dagstuhl, Germany. pp. 24-25. Dagstuhl Seminar Proceedings (08421). Schloss Dagstuhl - Leibniz-Zentrum fuer Informatik. ISSN 1862-4405
van Keulen, M. and de Keijzer, A. (2009) Qualitative Effects of Knowledge Rules and User Feedback in Probabilistic Data Integration. The VLDB Journal, 18 (5). pp. 1191-1217. ISSN 1066-8888 *** ISI Impact 1,564 ***
Koch, C. and König-Ries, B. and Markl, V. and van Keulen, M. (2009) 08421 Executive Summary - Uncertainty Management in Information Systems. In: Proceedings of Dagstuhl Seminar 08421 on Uncertainty Management in Information Systems, 12 - 17 Oct 2008, Dagstuhl, Germany. Dagstuhl Seminar Proceedings (08421). Schloss Dagstuhl - Leibniz-Zentrum fuer Informatik. ISSN 1862-4405
Koch, C. and Re, C. and Olteanu, D. and Lenz, H.-J. and van Keulen, M. and Haas, P.J. and Pan, J.Z. (2009) 08421 Working Group: Report of the Probabilistic Databases Benchmarking. In: Proceedings of Dagstuhl Seminar 08421 on Uncertainty Management in Information Systems, 12 - 17 Oct 2008, Dagstuhl, Germany. Dagstuhl Seminar Proceedings (08421). Schloss Dagstuhl - Leibniz-Zentrum fuer Informatik. ISSN 1862-4405
Panse, F. and van Keulen, M. and de Keijzer, A. and Ritter, N. (2009) Duplicate Detection in Probabilistic Data. Technical Report TR-CTIT-09-44, Centre for Telematics and Information Technology University of Twente, Enschede. ISSN 1381-3625
Spiliopoulou, M. and van Keulen, M. and Lenz, H.-J. and Wijsen, J. and Renz, M. and Kruse, R. and Stern, M. (2009) 08421 Working Group: Imprecision, Diversity and Uncertainty: Disentangling Threads in Uncertainty Management. In: Proceedings of Dagstuhl Seminar 08421 on Uncertainty Management in Information Systems, 12 - 17 Oct 2008, Dagstuhl, Germany. Dagstuhl Seminar Proceedings (08421). Schloss Dagstuhl - Leibniz-Zentrum fuer Informatik. ISSN 1862-4405
Veldman, I. and de Keijzer, A. and van Keulen, M. (2009) Compression of Probabilistic XML documents. In: Proceedings of the 3rd International Conference on Scalable Uncertainty Management (SUM2009), 28-30 Sep 2009, Washington, DC, USA. pp. 255-267. Lecture Notes in Computer Science 5785. Springer Verlag. ISSN 0302-9743 ISBN 978-3-642-04387-1

2008

de Keijzer, A. and van Keulen, M. (2008) IMPrECISE: Good-is-good-enough data integration. In: Proceedings of the 24th International Conference on Data Engineering (ICDE2008), 7-12 April 2008, Cancun, Mexico. pp. 1548-1551. IEEE Computer Society. ISBN 978-1-4244-1837-4
de Keijzer, A. and van Keulen, M. and Missier, P. and Lin, X. (2008) Preface. In: Proceedings of the International Workshop on Quality in Databases and Management of Uncertain Data (QDBMUD2008), 24 Aug 2008, Auckland, New Zealand. i. CTIT Workshop Proceedings Series (WP-CTIT-08-02). Centre for Telematics and Information Technology University of Twente. ISSN 1574-0846
van Keulen, M. and de Keijzer, A. (2008) Qualitative Effects of Knowledge Rules in Probabilistic Data Integration. Technical Report TR-CTIT-08-42, Centre for Telematics and Information Technology University of Twente, Enschede. ISSN 1381-3625
Nunes Leal Franqueira, V. and van Keulen, M. (2008) Analysis of the NIST database towards the composition of vulnerabilities in attack scenarios. Technical Report TR-CTIT-08-08, Centre for Telematics and Information Technology University of Twente, Enschede. ISSN 1381-3625

2007

Abdel Kader, R. and van Keulen, M. (2007) Overview of query optimization in XML database systems. Technical Report TR-CTIT-07-39, Centre for Telematics and Information Technology University of Twente, Enschede. ISSN 1381-3625
Blanken, H.M. and Feng, Ling and van Keulen, M. and Blok, H.E. (2007) Introduction. In: Multimedia Retrieval. Data-Centric Systems and Applications. Springer Verlag, Berlin, pp. 1-22. ISBN 978-3-540-72894-8
Boncz, P.A. and Grust, T. and Siméon, J. and van Keulen, M. (2007) 06472 Abstracts Collection - XQuery Implementation Paradigms. In: XQuery Implementation Paradigms, 19-22 Nov 2006, Dagstuhl, Germany. Dagstuhl Seminar Proceedings (06472). Internationales Begegnungs- und Forschungszentrum fuer Informatik (IBFI). ISSN 1862-4405
Boncz, P.A. and Grust, T. and Siméon, J. and van Keulen, M. (2007) 06472 Executive Summary - XQuery Implementation Paradigms. In: XQuery Implementation Paradigms, 19-22 Nov 2006, Dagstuhl, Germany. Dagstuhl Seminar Proceedings (06472). Internationales Begegnungs- und Forschungszentrum fuer Informatik (IBFI). ISSN 1862-4405
de Keijzer, A. and van Keulen, M. (2007) User Feedback in Probabilistic XML. Technical Report TR-CTIT-07-25, Centre for Telematics and Information Technology University of Twente, Enschede. ISSN 1381-3625
de Keijzer, A. and van Keulen, M. (2007) User Feedback in Probabilistic Integration. In: Second International Workshop on Flexible Database and Information System Technology (FlexDBIST 2007), 4 Sept 2007, Regensburg, Germany. pp. 377-381. IEEE Computer Society. ISBN 0-7695-2932-1
de Keijzer, A. and van Keulen, M. (2007) Quality Measures in Uncertain Data Management. In: Proceedings of the First International Conference on Scalable Uncertainty Management (SUM2007), 10-12 Oct 2007, Washington, DC, USA. pp. 104-115. Lecture Notes in Computer Science 4772. Springer Verlag. ISBN 978-3-540-75407-7
de Keijzer, A. and van Keulen, M. and Dekhtyar, A. (2007) Report on the First VLDB Workshop on Management of Uncertain Data (MUD 2007). ACM SIGMOD record, 36 (4). pp. 57-58. ISSN 0163-5808 *** ISI Impact 0,667 ***
de Keijzer, A. and van Keulen, M. and Dekhtyar, A. (2007) Preface. In: Proceedings of the first international VLDB workshop on Management of Uncertain Data. Proceedings Workshop Series (WP-CTIT-07-08). Centre for Telematics and Information Technology University of Twente, Enschede, iii. ISSN 1574-0846
van Keulen, M. (2007) Procesautomatisering. In: ICT-Zakboek. PBNA Polyzakboekjes (Chapter III.2.1). Reed Business Information, Den Haag, pp. 212-222. ISBN 978-90-6228-671-3
van Keulen, M. (2007) Gegevensbanken. In: ICT-Zakboek. PBNA Polyzakboekjes (Chapter VI.4). Reed Business Information, Den Haag, pp. 852-881. ISBN 978-90-6228-671-3
van Keulen, M. and Sikkel, K. (2007) Computerondersteuning voor groepscommunicatie en samenwerken. In: ICT-Zakboek. PBNA Polyzakboekjes (Chapter III.12). Reed Business Information, Den Haag, pp. 341-350. ISBN 978-90-6228-671-3
Schoute, A.L. and van Keulen, M. (2007) Operating Systems. In: ICT-Zakboek. PBNA Polyzakboekjes (Chapter VI.1.7). Reed Business Information, Den Haag, pp. 761-770. ISBN 978-90-6228-671-3
Siebes, A.P.J.M. and van Keulen, M. (2007) Data warehousing en data mining. In: ICT-Zakboek. PBNA Polyzakboekjes (Chapter III.11). Reed Business Information, Den Haag, pp. 332-341. ISBN 978-90-6228-671-3

2006

Boncz, P.A. and Flokstra, Jan and Grust, T. and van Keulen, M. and Manegold, S. and Mullender, K.S. and Rittinger, J. and Teubner, J. (2006) MonetDB/XQuery - Consistent & Efficient Updates on the Pre/Post Plane. In: Proceedings of the 10th International Conference on Extending Database Technology (EDBT 2006), 26-31 Mar 2006, Munich, Germany. pp. 1190-1193. Lecture Notes in Computer Science 3896. Springer. ISSN 0302-9743 ISBN 978-3-540-32960-2
Boncz, P.A. and Grust, T. and van Keulen, M. and Manegold, S. and Rittinger, J. and Teubner, J. (2006) MonetDB/XQuery: a fast XQuery processor powered by a relational engine. In: Proceedings of the 2006 ACM SIGMOD international conference on Management of data, 26-29 June 2006, Chicago, IL, USA. pp. 479-490. ACM Press. ISBN 1-59593-434-0
de Keijzer, A. and van Keulen, M. and Li, Yiping (2006) Taming Data Explosion in Probabilistic Information Integration. Technical Report TR-CTIT-06-05, Centre for Telematics and Information Technology University of Twente, Enschede. ISSN 1381-3625
de Keijzer, A. and van Keulen, M. and Li, Yiping (2006) Taming Data Explosion in Probabilistic Information Integration. In: Pre-Proceedings of the International Workshop on Inconsistency and Incompleteness in Databases (IIDB 2006), 26 Mar 2006, Munich, Germany. pp. 82-86. University of Mons-Hainaut, Belgium. ISBN not assigned
Smiljanic, M. and van Keulen, M. and Jonker, W. (2006) Using Element Clustering to Increase the Efficiency of XML Schema Matching. In: Proceedings of the 22nd International Conference on Data Engineering Workshops (ICDEW 2006), 3 Apr 2006, Atlanta, Georgia. 45. IEEE Computer Society. ISBN 0-7695-2571-7
Smiljanic, M. and van Keulen, M. and Jonker, W. (2006) Effectiveness Bounds for Non-Exhaustive Schema Matching Systems. In: Proceedings of the 22nd International Conference on Data Engineering Workshops (ICDEW'06), 7 Apr 2006, Atlanta, Georgia. 83. IEEE Computer Society. ISBN 0-7695-2571-7

2005

Boncz, P.A. and Grust, T. and van Keulen, M. and Manegold, S. and Rittinger, J. and Teubner, J. (2005) Pathfinder: XQuery - The Relational Way. In: Proceedings of the 31st International Conference on Very Large Databases (VLDB 2005), 30 Aug-2 Sep 2005, Trondheim, Norway. pp. 1322-1325. ACM Press. ISBN 1-59593-154-6
de Keijzer, A. and van Keulen, M. (2005) Information Integration; The process of integration, evolution and versioning. Technical Report TR-CTIT-05-58, Centre for Telematics and Information Technology University of Twente, Enschede, The Netherlands. ISSN 1381-3625
de Keijzer, A. and van Keulen, M. (2005) Rule-based Information Integration. Technical Report TR-CTIT-05-59, Centre for Telematics and Information Technology University of Twente, Enschede, The Netherlands. ISSN 1381-3625
van Keulen, M. and de Keijzer, A. and Alink, W. (2005) A probabilistic XML approach to data integration. In: Proceedings of the 21st International Conference on Data Engineering (ICDE'05), 5-8 April 2005, Tokyo, Japan. pp. 459-470. IEEE Conference Proceedings. IEEE Computer Society. ISSN 1084-4627 ISBN 0-7695-2285-8
Smiljanic, M. and van Keulen, M. and Jonker, W. (2005) Formalizing the XML Schema Matching Problem as a Constraint Optimization Problem. In: Proceedings of the 16th International Conference on Database and Expert Systems Applications (DEXA2005), 22-26 Aug 2005, Copenhagen, Denmark. pp. 333-342. Lecture Notes in Computer Science 3588. Springer. ISSN 0302-9743 ISBN 978-3-540-28566-3

2004

Grust, T. and van Keulen, M. and Teubner, J. (2004) Accelerating XPath Evaluation in Any RDBMS. Transactions on Database Systems (TODS), 29 (1). pp. 91-131. ISSN 0362-5915 *** ISI Impact 1,000 ***
de Keijzer, A. and van Keulen, M. (2004) A possible world approach to uncertain relational data. In: International Workshop on Supporting Imprecision and Uncertainty in Flexible Databases (SIUFDB 2004), 3 Sep 2004, Zaragoza, Spain. pp. 922-926. DEXA Workshops. IEEE Computer Society. ISBN 0-7695-2195-9
de Keijzer, A. and van Keulen, M. (2004) A Probabilistic Database Extension. Technical Report TR-CTIT-04-21, Centre for Telematics and Information Technology University of Twente, Enschede, The Netherlands. ISSN 1381-3625
van Keulen, M. (2004) Relational Approach to Logical Query Optimization of XPath. In: Proceedings of the 1st Twente Data Management Workshop (TDM'04) on XML Databases and Information Retrieval, 21 Jun 2004, Enschede, The Netherlands. pp. 57-63. CTIT Workshop Series WP 04-01. Centre for Telematics and Information Technology University of Twente. ISSN 1574-0846
Mayer, S. and Grust, T. and van Keulen, M. and Teubner, J. (2004) An Injection with Tree Awareness: Adding Staircase Join to PostgreSQL. In: Proceedings of the 30th International Conference on Very Large Data Bases (VLDB 2004), 31 Aug - 3 Sep 2004, Toronto, Canada. pp. 1305-1308. Morgan Kaufmann Publishers. ISBN 0120884690
van Rein, H. and van Keulen, M. (2004) Zoeken in XML: van XPath naar SQL. DB/M: Database Magazine (6). pp. 45-49. ISSN 0925-6911
van Ruth, J. and Fokkinga, M.M. and van Keulen, M. (2004) The Dodo Query Flattening System. Technical Report TR-CTIT-04-41, Centre for Telematics and Information Technology University of Twente, Enschede, The Netherlands. ISSN 1381-3625
Smiljanic, M. and van Keulen, M. and Jonker, W. (2004) Defining the XML Schema Matching Problem. Technical Report TR-CTIT-04-17, Centre for Telematics and Information Technology University of Twente, Enschede, The Netherlands. ISSN 1381-3625

2003

Grust, T. and van Keulen, M. (2003) Tree Awareness for Relational DBMS Kernels: Staircase Join. In: Intelligent Search on XML Data: Applications, Languages, Models, Implementations, and Benchmarks. Lecture Notes in Computer Science 2818. Springer, Berlin, Germany, pp. 231-245. ISBN 978-3-540-40768-3
Grust, T. and van Keulen, M. and Teubner, J. (2003) Staircase Join: Teach a Relational DBMS to Watch its (Axis) Steps. In: Proceedings of the 29th International Conference on Very Large Databases (VLDB2003), 9-12 Sep 2003, Berlin, Germany. pp. 524-535. Morgan Kaufmann Publishers. ISBN 0-12-722442-4
Hiemstra, D. and de Vries, A.P. and Blok, H.E. and van Keulen, M. and Jonker, W. and Kersten, M.L. (2003) CIRQUID: Complex Information Retrieval QUeries In a Database. Technical Report TR-CTIT-03-26, Centre for Telematics and Information Technology University of Twente, Enschede, The Netherlands. ISSN 1381-3625
van Keulen, M. and Vonk, J. and de Vries, A.P. and Flokstra, Jan and Blok, H.E. (2003) Moa and the multi-model architecture: a new perspective on NF2 In: Proceedings of the 14th International Conference on Database and Expert Systems Applications (DEXA2003), 1-5 Sep 2003, Prague, Czech Republic. pp. 67-76. Lecture Notes in Computer Science 2736. Springer-Verlag. ISSN 0302-9743 ISBN 978-3-540-40806-2
Teubner, J. and Grust, T. and van Keulen, M. (2003) Bridging the GAP Between Relational and Native XML Storage with Staircase Join. In: Tagungsband zum 15. GI-Workshop Grundlagen von Datenbanken, 10-13 Jun 2003, Tangermünde, Sachsen-Anhalt, Germany. pp. 85-89. Fakultät für Informatik, Universität Magdeburg. ISBN not assigned
Zivkovic, Z. and Petkovic, M. and van Keulen, M. and van der Heijden, F. and Jonker, W. and Rijnierse, E. (2003) Two Video Analysis Applications Using Foreground/Background Segmentation. In: Proceedings of the VIE2003 Conference on Visual Information Engineering, 7-9 Jul 2003, Surrey, Guildford, UK. pp. 310-313. IEEE Conference Proceedings 495. IEEE Computer Society. ISSN 0537-9989 ISBN 0-85296-757-8

2002

van Keulen, M. (2002) De hamer of de moker: welke databasesoftware te kiezen. Linux news, 3 (1). pp. 14-21. ISSN 1567-6676
van Keulen, M. and Vonk, J. and de Vries, A.P. and Flokstra, Jan and Blok, H.E. (2002) Moa: extensibility and efficiency in querying nested data. Technical Report TR-CTIT-02-19, Centre for Telematics and Information Technology University of Twente, Enschede, The Netherlands. ISSN 1381-3625
Smiljanic, M. and Blanken, H.M. and van Keulen, M. and Jonker, W. (2002) Distributed XML Database Systems. Technical Report TR-CTIT-02-46, Centre for Telematics and Information Technology University of Twente, Enschede, The Netherlands. ISSN 1381-3625

2001

van Keulen, M. (2001) XML: De eend met de gouden eieren? I/O Vivat, 17 (1). pp. 27-34. ISSN 1389-0468

1998

van Keulen, M. (1998) Object-Oriented Programming: A Unified Foundation - Guiseppe Castagna. L'Objet, 4 (1). pp. 108-110. ISSN 1262-1137
van Keulen, M. and Brand, H.W. (1998) Trends in tools voor gegevensmodellering. Informatie, 40. pp. 8-12. ISSN 0019-9907

1997

van Keulen, M. (1997) Formal Operation Definition in Object-Oriented Databases. PhD thesis, University of Twente. CTIT Ph.D.-thesis series No. 97-16 ISBN 90-3651-031-7

1996

Capobianchi, R. and Mautref, M. and van Keulen, M. and Balsters, H. (1996) An architecture and methodology for the design and development of Technical Information Systems. In: Proceedings of the 9th International Symposium on Methodologies for Intelligent Systems (ISMIS), 9-13 Jun 1996, Zakopane, Poland. pp. 511-520. Lecture Notes in Computer Science 1079. Springer-Verlag. ISSN 0302-9743 ISBN 978-3-540-61286-5

1995

van Keulen, M. and Skowronek, J. and Apers, P.M.G. and Balsters, H. and Blanken, H.M. and de By, R.A. and Flokstra, Jan (1995) A Framework for Representation, Validation and Implementation of Database Application Semantics. INF Memorandum INF 95-37, University of Twente, Enschede, The Netherlands. ISSN 0924-3755
van Keulen, M. and Skowronek, J. and Apers, P.M.G. and Balsters, H. and Blanken, H.M. and de By, R.A. and Flokstra, Jan (1995) Design and Validation of Reliable Complex Computer Systems. INF Memorandum INF 95-38, University of Twente, Enschede, The Netherlands. ISSN 0924-3755
van Keulen, M. and Skowronek, J. and Apers, P.M.G. and Balsters, H. and Blanken, H.M. and de By, R.A. and Flokstra, Jan (1995) A Framework for Representation, Validation and Implementation of Databases Application Semantics. In: Database Applications Semantics, Proceedings of the Sixth IFIP TC-2 Working Conference on Data Semantics (DS-6), May 30 - June 2, 1995, Stone Mountain, Atlanta, Georgia, USA. pp. 526-546. IFIP Conference Proceedings 74. Chapman & Hall. ISBN 0-412-72600-9

1994

Flokstra, Jan and van Keulen, M. and Skowronek, J. (1994) The IMPRESS DDT: a database design toolbox based on a formal specification language. In: Proceedings of the 1994 ACM SIGMOD international conference on Management of data (SIGMOD 1994), 24-27 May 1994, Minneapolis, Minnesota, USA. pp. 506-506. ACM Press. ISSN 0163-5808

1992

van Keulen, M. (1992) Struggle for LIFE: A Rapid prototype for TM in LIFE. Master's thesis, University of Twente.