• 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 2019

2019

An experimental study of context-free path query evaluation methods

Kuijpers, J., Fletcher, G., Yakovets, N. & Lindaaker, T., 23 Jul 2019, Proceedings of the 31st International Conference on Scientific and Statistical Database Management, SSDBM 2019. Jimenez, I., Maltzahn, C. & Malik, T. (eds.). New York: Association for Computing Machinery, Inc, p. 121-132 12 p.

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

Context free grammars
Bioinformatics
Labels

Cluster-preserving sampling from fully-dynamic streaming graphs

Zhang, J., Zhu, K., Pei, Y., Fletcher, G. & Pechenizkiy, M., 1 May 2019, In : Information Sciences. 482, p. 279-300 22 p.

Research output: Contribution to journalArticleAcademicpeer-review

Streaming
Sampling
Graph in graph theory
Clustering
Surge

Evolving plasticity for autonomous learning under changing environmental conditions

Yaman, A., Mocanu, D., Iacca, G., Coler, M., Fletcher, G. & Pechenizkiy, M., 2019, In : arXiv. 26 p., 1904.01709v1

Research output: Contribution to journalArticleAcademic

Open Access
File
Plasticity
Neurons
Chemical activation
Reinforcement
Genetic algorithms

GraDES-NDA 2019: joint international workshop on graph data management experiences & systems and network data analytics

Arora, A., Bhattacharya, A. & Fletcher, G., 25 Jun 2019, SIGMOD 2019 - Proceedings of the 2019 International Conference on Management of Data. New York: Association for Computing Machinery, Inc, p. 2064-2065 2 p.

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

Information management

Graph query processing

Salihoglu, S. & Yakovets, N., 20 Feb 2019, Encyclopedia of Big Data Technologies. Sakr, S. & Zomaya, A. Y. (eds.). Berlin: Springer, p. 890-898 9 p.

Research output: Chapter in Book/Report/Conference proceedingChapterAcademicpeer-review

Query processing
Planning

On directly mapping relational databases to property graphs

Stoica, R., Fletcher, G. & Sequeda, J. F., 2019, Alberto Mendelzon Workshop on Foundations of Data Management (AMW2019): Proceedings of the 13th Alberto Mendelzon International Workshop on Foundations of Data Management, Asunción, Paraguay, June 3–7, 2019. Hogan, A. & Milo, T. (eds.). CEUR-WS.org, 4 p. 06. (CEUR Workshop Proceedings; vol. 2369)

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

Open Access
File
Data structures
Information management
Semantics
Industry

Plan enumeration for SPARQL property paths

Yakovets, N., Godfrey, P. & Gryz, J., 1 Jan 2019, (Submitted)

Research output: Contribution to conferencePaperAcademic

Waveguides
Costs
2018
1 Citation (Scopus)

A bounded-size clustering algorithm on fully-dynamic streaming graphs

Zhang, J., Pei, Y., Fletcher, G. & Pechenizkiy, M., 1 Sep 2018, In : Intelligent Data Analysis. 22, 5, p. 1039-1058 20 p.

Research output: Contribution to journalArticleAcademicpeer-review

Streaming
Clustering algorithms
Clustering Algorithm
Clustering
Graph in graph theory
1 Citation (Scopus)

Clustering-structure representative sampling from graph streams

Zhang, J., Zhu, K., Pei, Y., Fletcher, G. & Pechenizkiy, M., 1 Jan 2018, Complex Networks and Their Applications VI : Proceedings of Complex Networks 2017 (The 6th International Conference on Complex Networks and Their Applications). Cherifi, C., Cherifi, H., Karsai, M. & Musulesi, M. (eds.). Dordrecht: Springer, p. 265-277 13 p. (Studies in Computational Intelligence; vol. 689)

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

Sampling
Data storage equipment
Complex networks
Experiments

DIPPA : Data integration platform for precision agriculture

Enkhtaivan, B., 24 Oct 2018, Eindhoven: Technische Universiteit Eindhoven. 77 p.

Research output: ThesisPd Eng ThesisAcademic

Open Access
File
2 Citations (Scopus)

DyNMF: Role analytics in dynamic social networks

Pei, Y., Zhang, J., Fletcher, G. & Pechenizkiy, M., 1 Jan 2018, Proceedings of the 27th International Joint Conference on Artificial Intelligence, IJCAI 2018. Lang, J. (ed.). California: International Joint Conferences on Artificial Intelligence, p. 3818-3824 7 p.

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

Open Access
Factorization
Experiments
15 Citations (Scopus)

G-CORE a core for future graph query languages

Angles, R., Arenas, M., Barceló, P., Boncz, P., Fletcher, G., Gutierrez, C., Lindaaker, T., Paradies, M., Plantikow, S., Sequeda, J., van Rest, O. & Voigt, H., 27 May 2018, SIGMOD 2018 - Proceedings of the 2018 International Conference on Management of Data. Das, G., Jermaine, C., Eldawy, A. & Bernstein, P. (eds.). New York: Association for Computing Machinery, Inc, p. 1421-1432 12 p.

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

Query languages
Industry

Histogram domain ordering for path selectivity estimation

Yakovets, N., Wang, L., Fletcher, G. H. L., Taverner, C. & Poulovassilis, A., 2018, Proceedings of the 21st International Conference on Extending Database Technology (EDBT), March 26-29, 2018. OpenProceedings.org, p. 493-496

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

Open Access
File
3 Citations (Scopus)

Limited evaluation cooperative co-evolutionary differential evolution for large-scale neuroevolution

Yaman, A., Mocanu, D. C., Iacca, G., Fletcher, G. & Pechenizkiy, M., 2 Jul 2018, GECCO 2018 - Proceedings of the 2018 Genetic and Evolutionary Computation Conference. Association for Computing Machinery, Inc, p. 569-576 8 p.

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

Open Access
File
Neural networks
Network architecture
Evolutionary algorithms
Neurons
1 Citation (Scopus)

Multi-strategy differential evolution

Yaman, A., Iacca, G., Coler, M., Fletcher, G. H. L. & Pechenizkiy, M., 4 Mar 2018, Applications of Evolutionary Computation: 21st International Conference, EvoApplications 2018, Parma, Italy, April 4-6, 2018, Proceedings. Sim, K. & Kaufmann, P. (eds.). Dordrecht: Springer, p. 617-633 (LNCS; vol. 10784)

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

Sampling

On graph sample clustering

Zhang, J., 29 Oct 2018, Eindhoven: Technische Universiteit Eindhoven. 216 p.

Research output: ThesisPhd Thesis 1 (Research TU/e / Graduation TU/e)Academic

Open Access
File

Querying graphs

Bonifati, A., Fletcher, G. H. L., Voigt, H. & Yakovets, N., 2018, Williston: Morgan & Claypool Publishers. 184 p.

Research output: Book/ReportBookAcademic

Data structures
Query processing
Life cycle
Query languages
Information management
2017
Open Access
File

Clustering-structure representative sampling from graph streams

Zhang, J., Zhu, K., Pei, Y., Fletcher, G. H. L. & Pechenizkiy, M., 2017

Research output: Contribution to conferencePaperAcademic

Open Access
File
Sampling
Data storage equipment
Complex networks
Experiments

Declarative graph querying in practice and theory

Fletcher, G. H. L., Voigt, H. & Yakovets, N., 25 Mar 2017, Advances in database technology - EDBT 2017 : 20th International Conference on Extending Database Technology, Venice, Italy, March 21-24, 2017 : proceedings. Markt, V., Orlando, S., Mischang, B., Andritsos, P., Sattler, K-U. & Breß, S. (eds.). p. 598-601

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

Open Access
Query languages
Query processing
Information management
27 Citations (Scopus)

gMark: schema-driven generation of graphs and queries

Bagan, G., Bonifati, A., Ciucanu, R., Fletcher, G. H. L., Lemay, A. & Advokaat, N., 2017, In : IEEE Transactions on Knowledge and Data Engineering. 29, 4, p. 856-869

Research output: Contribution to journalArticleAcademicpeer-review

Query languages

gMark: schema-driven generation of graphs and queries (extended abstract)

Bagan, G., Bonifati, A., Ciucanu, R., Fletcher, G. H. L., Lemay, A. & Advokaat, N., 2017, 33rd IEEE International Conference on Data Engineering (ICDE). Piscataway: Institute of Electrical and Electronics Engineers, 63 p.

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

Query languages

Investigations on path indexing for graph databases

Sumrall, J. M., Fletcher, G. H. L., Poulovassilis, A., Svensson, J., Vejlstrup, M., Vest, C. & Webber, J., 1 Jan 2017, Euro-Par 2016: Parallel Processing Workshops - Euro-Par 2016 International Workshops, Revised Selected Papers. Dutot, P-F. & Desprez, F. (eds.). Cham: Springer, p. 532-544 13 p. (Lecture Notes in Computer Science (including subseries Lecture Notes in Artificial Intelligence and Lecture Notes in Bioinformatics); vol. 10104 LNCS)

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

Indexing
Path
Graph in graph theory
Loaders
Query processing
5 Citations (Scopus)

Landmark indexing for evaluation of label-constrained reachability queries

Valstar, L. D. J., Fletcher, G. H. L. & Yoshida, Y., 2017, Proceedings of the 2017 ACM SIGMOD International Conference on Management of Data (SIGMOD 2017) . Association for Computing Machinery, Inc, p. 345-358

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

Labels
Query languages
Experiments
1 Citation (Scopus)

Stability notions in synthetic graph generation: a preliminary study

van Leeuwen, W., Fletcher, G. H. L., Yakovets, N. & Bonifati, A., 25 Mar 2017, Advances in database technology - EDBT 2017 20th International Conference on Extending Database Technology, Venice, Italy, March 21-24, 2017 : proceedings. Markl, V., Orlando, S. & Mitschang, B. (eds.). Konstanz: University of Konstanz, p. 486-489 4 p.

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

Open Access
File
Query processing
Scalability
Structural properties
Processing
2 Citations (Scopus)

TASWEET : optimizing disjunctive regular path queries in graph databases

Abul-Basher, Z., Yakovets, N., Godfrey, P., Ghajar-Khosravi, S. & Chignell, M. H., 25 Mar 2017, 20th International Conference on Extending Database Technology, 21-24 march 2017, Venice, Italy. p. 470-473 4 p.

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

Open Access
File

WIREFRAME: two-phase, cost-based optimization for conjunctive regular path queries

Godfrey, P., Yakovets, N., Abul-Basher, Z. & Chignell, M. H., 2017, AMW 2017: Alberto Mendelzon Workshop on Foundations of Data Management and the Web: Proceedings of the 11th Alberto Mendelzon International Workshop on Foundations of Data Management and the Web, Montevideo, Uruguay, June 7-9, 2017. Reutter, J. & Srivastava, D. (eds.). CEUR-WS.org, 4 p. (CEUR Workshop Proceedings; no. 1912)

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

Open Access
File
Costs
Planning
2016
2 Citations (Scopus)

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
7 Citations (Scopus)

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
Demonstrations

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

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

Query languages
Information management
Demonstrations
Engines

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

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

2 Citations (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

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., Mar 2016, In : Journal of Computer and System Sciences. 82, 2, p. 229-259

Research output: Contribution to journalArticleAcademicpeer-review

Relation Algebra
Expressiveness
Algebra
Vertex of a graph
XML
6 Citations (Scopus)

Structural measures of clustering quality on graph samples

Zhang, J., Fletcher, G. H. L., Pei, Y. & Pechenizkiy, M., 2016, 2016 IEEE/ACM International Conference on Advances in Social Networks Analysis and Mining (ASONAM). Piscataway: Institute of Electrical and Electronics Engineers, p. 345-348

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

Sampling
Experiments

WiBAF into a CMS: personalization in learning environments made easy

Montes Garcia, A., Stash, N., Fabri, M., De Bra, P., Fletcher, G. H. L. & Pechenizkiy, M., 2016, UMAP 2016 Extended Proceedings. Late-breaking Results, Posters, Demos, Doctoral Consortium and Workshops Proceedings of the 24th ACM Conference on User Modeling, Adaptation and Personalisation (UMAP 2016), Halifax, Canada, July 13-16, 2016. Cena, F., Desmarais, M., Dicheva, D. & Zhang, J. (eds.). CEUR-WS.org, p. 57-62 (CEUR Workshop Proceedings; vol. 1618)

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

Students
Navigation
Personnel
Feedback
2015
1 Citation (Scopus)

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

Data structures
Query processing
Statistics
Engines
Processing
8 Citations (Scopus)

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

Information management
Data mining
Hardware
Data storage equipment
Experiments
3 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
26 Citations (Scopus)

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
Query languages
Binary relation
Expressive Power
Query
Query Language
8 Citations (Scopus)

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

Graph
Closure
Expressive Power
Transitive
Operator
4 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

Fragment
Calculus
Residuation
Bisimulation
Difference Set

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

Relation Algebra
Expressiveness
Vertex of a graph
Fragment
XPath
6 Citations (Scopus)

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
Transitive Closure
Query languages
Query Language
Expressiveness
Algebra
2014
5 Citations (Scopus)

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

Hypermedia systems
DSL
Recommender systems
Adaptive systems
1 Citation (Scopus)

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

Metadata
Information management
Query languages
Data structures

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

Query languages
XML
25 Citations (Scopus)

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
Query languages
Chemical analysis
2013
7 Citations (Scopus)

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

Data storage equipment
Query processing
Distributed computer systems
Information management
Labeling