• P.O. Box 513, Department of Mathematics and Computer Science

    5600 MB Eindhoven

    Netherlands

  • Groene Loper 5, MetaForum

    5612 AP Eindhoven

    Netherlands

Research Output

2009

A methodology for coupling fragments of XPath with structural indexes for XML documents

Fletcher, G. H. L., Van Gucht, D., Wu, Y., Gyssens, M., Brenes, S. & Paredaens, J., 2009, In : Information Systems. 34, 7, p. 657-670

Research output: Contribution to journalArticleAcademicpeer-review

12 Citations (Scopus)

Human computing skills: rethinking the K-12 experience

Fletcher, G. H. L. & Lu, J. J., 2009, In : Communications of the ACM. 52, 2, p. 23-25

Research output: Contribution to journalArticleAcademicpeer-review

31 Citations (Scopus)
1 Downloads (Pure)

On the expressive power of the relational algebra on finite sets of relation pairs

Fletcher, G. H. L., Gyssens, M., Paredaens, J. & Van Gucht, D., 2009, In : IEEE Transactions on Knowledge and Data Engineering. 21, 6, p. 939-942

Research output: Contribution to journalArticleAcademicpeer-review

15 Citations (Scopus)

Scalable indexing of RDF graphs for efficient join processing

Fletcher, G. H. L. & Beck, P. W., 2009, Proceedings 18th ACM Conference on Information and Knowledge Management (CIKM2009, Hong Kong, November 2-6, 2009). Cheung, DW-L., Song, I-Y., Chu, W., Hu, X. & Lin, J. (eds.). New York: Association for Computing Machinery, Inc, p. 1513-1516

Research output: Chapter in Book/Report/Conference proceedingConference contributionAcademicpeer-review

33 Citations (Scopus)

Thinking about computational thinking

Lu, J. J. & Fletcher, G. H. L., 2009, Proceedings of the 40th SIGCSE Technical Symposium on Computer Science Education (SIGCSE 2009, Chattanooga TN, USA, March 4-7, 2009). Fitzgerald, S., Guzdial, M., Lewandowski, G. & Wolfman, S. A. (eds.). New York: Association for Computing Machinery, Inc, p. 260-264

Research output: Chapter in Book/Report/Conference proceedingConference contributionAcademicpeer-review

Towards a general framework for effective solutions to the data mapping problem

Fletcher, G. H. L. & Wyss, C. M., 2009, Journal on Data Semantics XIV. Spaccapietra, S. & Delcambre, L. (eds.). Berlin: Springer, p. 37-73 (Lecture Notes in Computer Science; vol. 5880).

Research output: Chapter in Book/Report/Conference proceedingChapterAcademic

1 Citation (Scopus)

Towards a theory of search queries

Fletcher, G. H. L., Van den Bussche, J., Van Gucht, D. & Vansummeren, S., 2009, Database Theory - ICDT 2009 (12th International Conference, St. Petersburg, Russia, March 23-25, 2009, Proceedings). Fagin, R. (ed.). New York: Association for Computing Machinery, Inc, p. 201-211 (ACM International Conference Proceeding Series; vol. 361).

Research output: Chapter in Book/Report/Conference proceedingConference contributionAcademicpeer-review

9 Citations (Scopus)

Towards well-behaved schema evolution

Chirkova, R. & Fletcher, G. H. L., 2009, Proceedings Twelfth International Workshop on the Web and Databases (WebDB2009, Providence, RI, USA, June 28,2009). p. 1-6

Research output: Chapter in Book/Report/Conference proceedingConference contributionAcademicpeer-review

2010

Constraint processing in relational database systems: From theory to implementation

Lu, J. J., Siva, S., Parekh, O., Fletcher, G. H. L. & Zhang, H., 2010, Proceedings 25th ACM Symposium on Applied Computing (SAC'10, Sierre, Switzerland, March 22-26, 2010). Shin, S. Y., Ossowski, S., Schumacher, M., Palakal, M. J. & Hung, C. C. (eds.). New York NY: Association for Computing Machinery, Inc, p. 2066-2070

Research output: Chapter in Book/Report/Conference proceedingConference contributionAcademicpeer-review

4 Citations (Scopus)

Towards a theory of search queries

Fletcher, G. H. L., Van den Bussche, J., Van Gucht, D. & Vansummeren, S., 2010, In : ACM Transactions on Database Systems. 35, 4, p. 28:1-33

Research output: Contribution to journalArticleAcademicpeer-review

11 Citations (Scopus)
2011

4th International Workshop on Logic in Databases, LID 2011; Uppsala; Sweden; 25 March 2011 through 25 March 2011: Foreword

Fletcher, G., Staworko, S., Orsborn, K. & Stefanova, S., 10 May 2011, 4th International Workshop on Logic in Databases, LID 2011; Uppsala; Sweden, 25 March 2011. New York: Association for Computing Machinery, Inc, p. i-iv 4 p.

Research output: Chapter in Book/Report/Conference proceedingForeword/postscriptAcademic

Efficient RDFS entailment in external memory

Haffmans, W. J. & Fletcher, G. H. L., 2011, On the Move to Meaningful Internet Systems: OTM 2011 Workshops (Hersonissos, Crete, Greece, October 17-21, 2011. Proceedings). Meersman, R., Dillon, T. & Herrero, P. (eds.). Berlin: Springer, p. 464-473 (Lecture Notes in Computer Science; vol. 7046).

Research output: Chapter in Book/Report/Conference proceedingConference contributionAcademicpeer-review

3 Citations (Scopus)
1 Downloads (Pure)

I/O efficient bisimulation partitioning on very large directed acyclic graphs

Hellings, J., Fletcher, G. H. L. & Haverkort, H. J., 2011, (arXiv.org (cs.DS); vol. 1112.0857)

Research output: Book/ReportReportAcademic

Proceedings of 4th International Workshop on Logic in Databases (LID 2011), Uppsala, Sweden, March 25, 2011

Fletcher, G. H. L. (ed.), Staworko, S. (ed.), Orsborn, K. (ed.) & Stefanova, S. (ed.), 2011, New York NY: Association for Computing Machinery, Inc.

Research output: Book/ReportBook editingAcademic

Relative expressive power of navigational querying on graphs

Fletcher, G. H. L., Gyssens, M., Leinders, D., Van den Bussche, J., Van Gucht, D., Vansummeren, S. & Wu, Y., 2011, 14th International Conference on Database Theory (ICDT'11, Uppsala, Sweden, March 21-23, 2011). Milo, T. (ed.). New York NY: Association for Computing Machinery, Inc, p. 197-207 (ACM International Conference Proceeding Series).

Research output: Chapter in Book/Report/Conference proceedingConference contributionAcademicpeer-review

27 Citations (Scopus)
2012

A structural approach to indexing triples

Picalausa, F., Luo, Y., Fletcher, G. H. L., Hidders, A. J. H. & Vansummeren, S., 2012, The Semantic Web : Research and Applications (9th Extended Semantic Web Conference, ESWC 2012, Heraklion, Crete, Greece, May 27-31, 2012. Proceedings). Simperl, E., Cimiano, P., Polleres, A., Corcho, O. & Presutti, V. (eds.). Berlin: Springer, p. 406-421 (Lecture Notes in Computer Science; vol. 7295).

Research output: Chapter in Book/Report/Conference proceedingConference contributionAcademicpeer-review

24 Citations (Scopus)
1 Downloads (Pure)

Efficient external-memory bisimulation on DAGs

Hellings, J., Fletcher, G. H. L. & Haverkort, H. J., 2012, Proceedings of the 31st ACM SIGMOD International Conference on Management of Data (Scottsdale AZ, USA, May 20-24, 2012). New York NY: Association for Computing Machinery, Inc, p. 553-564

Research output: Chapter in Book/Report/Conference proceedingConference contributionAcademicpeer-review

15 Citations (Scopus)

I/O-efficient algorithms for localized bisimulation partition construction and maintenance on massive graphs

Luo, Y., Fletcher, G. H. L., Hidders, A. J. H., Wu, Y. & Bra, De, P. M. E., 2012, s.n. 15 p. (arXiv.org; vol. 1210.0748 [cs.DB])

Research output: Book/ReportReportAcademic

Similarity and bisimilarity notions appropriate for characterizing indistinguishability in fragments of the calculus of relations

Fletcher, G. H. L., Gyssens, M., Leinders, D., Van den Bussche, J., Van Gucht, D. & Vansummeren, S., 2012, s.n. 33 p. (arXiv.org; vol. 1210.2688 [cs.LO])

Research output: Book/ReportReportAcademic

1 Downloads (Pure)

Storing and indexing massive RDF datasets

Luo, Y., Picalausa, F., Fletcher, G. H. L., Hidders, A. J. H. & Vansummeren, S., 2012, Semantic search over the web. Virgilio, De, R., Guerra, F. & Velegrakis, Y. (eds.). Germany: Springer, p. 31-60 417 p. (Data-Centric Systems and Applications).

Research output: Chapter in Book/Report/Conference proceedingChapterAcademic

25 Citations (Scopus)
11 Downloads (Pure)

Technologies for dealing with information overload : an engineers' point of view

Calders, T. G. K., Fletcher, G. H. L., Kamiran, F. & Pechenizkiy, M., 2012, Information overload : an international challenge for professional engineers and technical communicators. Strother, J. B., Ulijn, J. M. & Fazal, Z. (eds.). Wiley-IEEE, p. 175-202

Research output: Chapter in Book/Report/Conference proceedingChapterAcademic

2 Citations (Scopus)

The impact of transitive closure on the Boolean expressiveness of navigational query languages on graphs

Fletcher, G. H. L., Gyssens, M., Leinders, D., Van den Bussche, J., Van Gucht, D., Vansummeren, S. & Wu, Y., 2012, Foundations of Information and Knowledge Systems (7th International Symposium, FoIKS 2012, Kiel, Germany, March 5-9, 2012. Proceedings). Lukasiewicz, T. & Sali, A. (eds.). Berlin: Springer, p. 124-143 (Lecture Notes in Computer Science; vol. 7153).

Research output: Chapter in Book/Report/Conference proceedingConference contributionAcademicpeer-review

7 Citations (Scopus)

WIDM'12: The 12th International Workshop on Web

Fletcher, G. H. L. & Mitra, P., 2012, WIDM'12: The 12th International Workshop on Web Information and Data Management (co-located with CIKM'12, October 29 - November 2, 2012, Maui, HI, USA). New York NY: Association for Computing Machinery, Inc, p. 2778-2779

Research output: Chapter in Book/Report/Conference proceedingConference contributionAcademic

2013

Bisimulation reduction of big graphs on MapReduce

Luo, Y., Lange, de, Y., Fletcher, G. H. L., De Bra, P. M. E. & Hidders, A. J. H., 2013, Big Data (29th British National Conference on Databases, BNCOD 2013, Oxford, UK, July 8-10, 2013. Proceedings). Gottlob, G., Grasso, G., Olteanu, D. & Schallhart, C. (eds.). Berlin: Springer, p. 189-203 (Lecture Notes in Computer Science; vol. 7968).

Research output: Chapter in Book/Report/Conference proceedingConference contributionAcademicpeer-review

7 Citations (Scopus)
4 Downloads (Pure)

Efficient processing of containment queries on nested sets

Ibrahim, A. & Fletcher, G. H. L., 2013, Proceedings of the 16th International Conference on Extending Database Technology (EDBT'13, Genoa, Italy, May 18-22, 2013). New York NY: Association for Computing Machinery, Inc, p. 227-238

Research output: Chapter in Book/Report/Conference proceedingConference contributionAcademicpeer-review

2 Citations (Scopus)

External memory K-bisimulation reduction of big graphs

Luo, Y., Fletcher, G. H. L., Hidders, A. J. H., Wu, Y. & De Bra, P. M. E., 2013, Proceedings of the 22nd ACM International Conference on Information and Knowledge Management (CIKM'13, Burlingame CA, USA, October 27-November 1, 2013). New York: Association for Computing Machinery, Inc, p. 919-928

Research output: Chapter in Book/Report/Conference proceedingConference contributionAcademicpeer-review

12 Citations (Scopus)

On bridging relational and document-centric data stores

Roijackers, J. & Fletcher, G. H. L., 2013, Big Data (29th British National Conference on Databases, BNCOD 2013, Oxford, UK, July 8-10, 2013. Proceedings). Gottlob, G., Grasso, G., Olteanu, D. & Schallhart, C. (eds.). Berlin: Springer, p. 135-148 (Lecture Notes in Computer Science; vol. 7968).

Research output: Chapter in Book/Report/Conference proceedingConference contributionAcademicpeer-review

13 Citations (Scopus)
1 Downloads (Pure)

Regularities and dynamics in bisimulation reductions of big graphs

Luo, Y., Fletcher, G. H. L., Hidders, A. J. H., De Bra, P. M. E. & Wu, Y., 2013, First International Workshop on Graph Data Management Experiences and Systems (GRADES'13, New York NY, USA, June 23, 2013; co-located with SIGMOD/PODS'13). New York NY: Association for Computing Machinery, Inc, p. 13/1-6

Research output: Chapter in Book/Report/Conference proceedingConference contributionAcademicpeer-review

7 Citations (Scopus)

Search on graphs : theory meets engineering

Wu, Y. & Fletcher, G. H. L., 2013, Web Technologies and Applications (15th Asia-Pacific Web Conference, APWeb 2013, Sydney, Australia, April 4-6, 2013. Proceedings). Ishikawa, Y., Li, J., Wang, W., Zhang, R. & Zhang, W. (eds.). Berlin: Springer, p. 3-6 (Lecture Notes in Computer Science; vol. 7808).

Research output: Chapter in Book/Report/Conference proceedingConference contributionProfessional

What we talk about when we talk about graphs (Abstract)

Fletcher, G. H. L., 2013, Proceedings of the Joint EDBT/ICDT 2013 Workshops (Genoa, Italy, March 18-22, 2013). New York NY: Association for Computing Machinery, Inc, p. 184-184

Research output: Chapter in Book/Report/Conference proceedingConference contributionAcademicpeer-review

2 Downloads (Pure)
2014

A DSL based on CSS for hypertext adaptation

Montes Garcia, A., De Bra, P. M. E., Fletcher, G. H. L. & Pechenizkiy, M., 2014, 25th ACM Conference on Hypertext and Social Media (HT'14, Santiago, Chile, September 1-4, 2014). New York NY: Association for Computing Machinery, Inc, p. 313-315

Research output: Chapter in Book/Report/Conference proceedingConference contributionAcademicpeer-review

5 Citations (Scopus)
2 Downloads (Pure)

On reflection in linked data management

Fletcher, G. H. L., 2014, 5th International Workshop on Data Engineering meets the Semantic Web (DESWeb 2014, Chicago IL, USA, March 31, 2014). Piscataway: Institute of Electrical and Electronics Engineers, p. 269-271

Research output: Chapter in Book/Report/Conference proceedingConference contributionAcademicpeer-review

1 Citation (Scopus)

Principles of guarded structural indexing

Picalausa, F., Fletcher, G. H. L., Hidders, A. J. H. & Vansummeren, S., 2014, 17th International Conference on Database Theory (ICDT'14, Athens, Greece, 24-28 March, 2014). OpenProceedings.org, p. 245-256

Research output: Chapter in Book/Report/Conference proceedingConference contributionAcademicpeer-review

Relative expressive power of navigational querying on graphs

Fletcher, G. H. L., Gyssens, M., Leinders, D., Surinx, D., Van den Bussche, J., Van Gucht, D., Vansummeren, S. & Wu, Y., 2014, s.n. 29 p. (arXiv; vol. 1401.8201 [cs.DB])

Research output: Book/ReportReportAcademic

Open Access
File
40 Downloads (Pure)
2015

An extensible framework for query optimization on triplet-based RDF stores

Wolff, B. G. J., Fletcher, G. H. L. & Lu, J. J., 2015, Proceedings of the Workshops of the EDBT/ICDT 2015 Joint Conference (Brussels, Belgium, March 27, 2015). Alonso, G., Fischer, P. M. & Geerts, F. (eds.). s.l.: CEUR-WS.org, p. 1-7 31. (CEUR Workshop Proceedings; vol. 1330).

Research output: Chapter in Book/Report/Conference proceedingConference contributionAcademicpeer-review

2 Citations (Scopus)
1 Downloads (Pure)

Efficient and scalable trie-based algorithms for computing set containment relations

Luo, Y., Fletcher, G. H. L., Hidders, A. J. H. & De Bra, P. M. E., 2015, 2015 IEEE 31st International Conference on Data Engineering (ICDE, Seoul, South Korea, April 13-17, 2015). Piscataway NJ: Institute of Electrical and Electronics Engineers, p. 303-314

Research output: Chapter in Book/Report/Conference proceedingConference contributionAcademicpeer-review

11 Citations (Scopus)

Relative expressive power of downward fragments of navigational query languages on trees and chains

Hellings, J. A. J., Fletcher, G. H. L., Gyssens, M., Wu, Y., Van Gucht, D., Van den Bussche, J. & Vansummeren, S., 2015, 15th Symposium on Data Base Programming Languages (DBPL), 27 October 2015, Pittsburgh, Pennsylvania. 10 p.

Research output: Chapter in Book/Report/Conference proceedingConference contributionAcademicpeer-review

Open Access
File
3 Citations (Scopus)
43 Downloads (Pure)

Relative expressive power of navigational querying on graphs

Fletcher, G. H. L., Gyssens, M., Leinders, D., Surinx, D., Van den Bussche, J., Van Gucht, D., Vansummeren, S. & Wu, Y., 2015, In : Information Sciences. 298, p. 390-406

Research output: Contribution to journalArticleAcademicpeer-review

Open Access
File
24 Citations (Scopus)
115 Downloads (Pure)

Relative expressive power of navigational querying on graphs using transitive closure

Surinx, D., Fletcher, G. H. L., Gyssens, M., Leinders, D., Van den Bussche, J., Van Gucht, D., Vansummeren, S. & Wu, Y., 2015, In : Logic Journal of the IGPL. 23, 5, p. 759-788

Research output: Contribution to journalArticleAcademicpeer-review

13 Citations (Scopus)

Similarity and bisimilarity notions appropriate for characterizing indistinguishability in fragments of the calculus of relations

Fletcher, G. H. L., Gyssens, M., Leinders, D., Van den Bussche, J., Van Gucht, D. & Vansummeren, S., 2015, In : Journal of Logic and Computation. 25, 3, p. 549-580

Research output: Contribution to journalArticleAcademicpeer-review

4 Citations (Scopus)

Structural characterizations of the navigational expressiveness of relation algebras on a tree

Fletcher, G. H. L., Gyssens, M., Paredaens, J., Van Gucht, D. & Wu, Y., 2015, s.n. 58 p. (arXiv; vol. 1502.03258 [cs.DB])

Research output: Book/ReportReportAcademic

The impact of transitive closure on the expressiveness of navigational query languages on unlabeled graphs

Fletcher, G. H. L., Gyssens, M., Leinders, D., Van den Bussche, J., Van Gucht, D., Vansummeren, S. & Wu, Y., 2015, In : Annals of Mathematics and Artificial Intelligence. 73, 1-2, p. 167-203

Research output: Contribution to journalArticleAcademicpeer-review

Open Access
File
7 Citations (Scopus)
66 Downloads (Pure)
2016

Adaptive web-based educational application for autistic students

Montes Garcia, A., Stash, N., Fabri, M., De Bra, P. M. E., Fletcher, G. H. L. & Pechenizkiy, M., 2016, Extended Proceedings of Hypertext 2016, Halifax, Canada. Koidl, K. & Steichen, B. (eds.). American Mathematical Society

Research output: Chapter in Book/Report/Conference proceedingConference contributionAcademicpeer-review

Open Access
File
2 Citations (Scopus)
53 Downloads (Pure)

Efficient regular path query evaluation using path indexes

Fletcher, G. H. L., Peters, J. & Poulovassilis, A., 1 Jan 2016, Advances in Database Technology - EDBT 2016: 19th International Conference on Extending Database Technology, Proceedings. Manolescu, I., Pitoura, E., Marian, A., Maabout, S., Tanca, L., Koutrika, G. & Stefanidis, K. (eds.). Konstanz: OpenProceedings.org, p. 636-639 4 p.

Research output: Chapter in Book/Report/Conference proceedingConference contributionAcademicpeer-review

Open Access
File
8 Citations (Scopus)
19 Downloads (Pure)

Empirical evaluation of guarded structural indexing

Agterdenbos, E., Fletcher, G. H. L., Chan, C. Y. & Vansummeren, S., 1 Jan 2016, Advances in Database Technology - EDBT 2016: 19th International Conference on Extending Database Technology, Proceedings. Manolescu, I., Pitoura, E., Marian, A., Maabout, S., Tanca, L., Koutrika, G. & Stefanidis, K. (eds.). OpenProceedings.org, p. 714-715 2 p.

Research output: Chapter in Book/Report/Conference proceedingConference contributionAcademicpeer-review

Open Access
File
10 Downloads (Pure)

Generating flexible workloads for graph databases

Fletcher, G. H. L., Bagan, G., Bonifati, A., Ciucanu, R., Lemay, A. & Advokaat, N., 2016, In : Proceedings of the VLDB Endowment. 9, 13, p. 1457-1460

Research output: Contribution to journalArticleAcademicpeer-review

16 Citations (Scopus)
4 Downloads (Pure)

Node classification in dynamic social networks

Pei, Y., Zhang, J., Fletcher, G. H. L. & Pechenizkiy, M., 2016, Proceedings of AALTD 2016: 2nd ECMLPKDD International Workshop on Advanced Analytics and Learning on Temporal Data, 19 September 2016, Riva del Garda, Italy. p. 1-8

Research output: Chapter in Book/Report/Conference proceedingConference contributionAcademicpeer-review

3 Downloads (Pure)

No users no dataspaces! Query-driven dataspace orchestration

Fletcher, G. H. L. & Mandreoli, F., 2016, 24th Italian Symposium on Advanced Database Systems (SEBD).

Research output: Chapter in Book/Report/Conference proceedingConference contributionAcademicpeer-review

1 Citation (Scopus)

On structure preserving sampling and approximate partitioning of graphs

van Heeswijk, W., Fletcher, G. H. L. & Pechenizkiy, M., 2016, SAC '16 Proceedings of the 31st Annual ACM Symposium on Applied Computing, 4-8 April 2016, Pisa, Italy. New York: Association for Computing Machinery, Inc, p. 875-882

Research output: Chapter in Book/Report/Conference proceedingConference contributionAcademicpeer-review

3 Citations (Scopus)
3 Downloads (Pure)