Johann Petrak

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Diana MaynardSenior Research Fellow, GATE team, NLP group, and CFOM, University of SheffieldVerified email at sheffield.ac.uk
Kalina BontchevaProfessor of Text Analytics, University of SheffieldVerified email at sheffield.ac.uk
hamish cunninghamProfessor of Computer Science, University of SheffieldVerified email at gate.ac.uk
Johannes FürnkranzJohannes Kepler University, LinzVerified email at faw.jku.at
Valentin TablanIeso Digital HealthVerified email at tablan.net
Leon DerczynskiITU Copenhagen & NVIDIAVerified email at itu.dk
Danica DamljanovicUniversity of SheffieldVerified email at dcs.shef.ac.uk
Xingyi SongUniversity of SheffieldVerified email at shef.ac.uk
Raphaël TroncyAssociate Professor of Computer Science, EURECOMVerified email at eurecom.fr
Marieke van ErpKNAW Humanities ClusterVerified email at dh.huc.knaw.nl
Giuseppe RizzoLINKS FoundationVerified email at linksfoundation.com
Horacio SaggionChair in Computer Science & Artificial Intelligence, Universitat Pompeu Fabra, DTICVerified email at upf.edu
Carlos SoaresAssociate Professor, Faculdade de Engenharia da U. Porto/External Advisor at Fraunhofer AICOSVerified email at fe.up.pt
Mark A. GreenwoodUniversity of SheffieldVerified email at sheffield.ac.uk
Iknoor SinghThe University of SheffieldVerified email at sheffield.ac.uk
Gerhard WidmerProfessor of Computer Science, Johannes Kepler University LinzVerified email at jku.at
Mihai LupuVerified email at mihailupu.net
Dunja MladenicSenior researcher at J. Stefan InstituteVerified email at ijs.si
Mário Amado AlvesCELGA-ILTEC, Universidade de CoimbraVerified email at fl.uc.pt
Alípio JorgeUniversity of Porto, FCUP, DCC, INESC TEC, LIAADVerified email at fc.up.pt

Johann Petrak

The University of Sheffield

Verified email at sheffield.ac.uk - Homepage

Natural Language Processing Information Extraction Machine Learning Ontologies Semantic Search


Title Sort by citations Sort by year Sort by title	Cited by Cited by	Year
Text processing with gate H Cunningham, D Maynard, K Bontcheva Gateway Press CA, 2011	828*	2011
Analysis of named entity recognition and linking for tweets L Derczynski, D Maynard, G Rizzo, M Van Erp, G Gorrell, R Troncy, ... Information Processing & Management 51 (2), 32-49, 2015	495	2015
An evaluation of landmarking variants J Fürnkranz, J Petrak Working Notes of the ECML/PKDD 2000 Workshop on Integrating Aspects of Data …, 2001	122	2001
Classification aware neural topic model for COVID-19 disinformation categorisation X Song, J Petrak, Y Jiang, I Singh, D Maynard, K Bontcheva PloS one 16 (2), e0247086, 2021	72	2021
Sampling-based relative landmarks: Systematically test-driving algorithms before choosing C Soares, J Petrak, P Brazdil Portuguese conference on artificial intelligence, 88-95, 2001	62	2001
Fast subsampling performance estimates for classification algorithm selection J Petrak Proceedings of the ECML-00 Workshop on Meta-Learning: Building Automatic …, 2000	62	2000
Developing language processing components with gate version 8 H Cunningham, D Maynard, K Bontcheva, V Tablan, N Aswani, I Roberts, ... University of Sheffield Department of Computer Science, 2014	61	2014
Team bertha von suttner at semeval-2019 task 4: Hyperpartisan news detection using elmo sentence representation convolutional network Y Jiang, J Petrak, X Song, K Bontcheva, D Maynard Proceedings of the 13th International Workshop on Semantic Evaluation, 840-844, 2019	58	2019
Adapted textrank for term extraction: A generic method of improving automatic term extraction algorithms Z Zhang, J Petrak, D Maynard Procedia Computer Science 137, 102-108, 2018	47	2018
Knowledge discovery in international conflict databases J Furnkranz, J Petrak, R Trappl Applied Artificial Intelligence 11 (2), 91-118, 1997	40	1997
GPSDB: a new database for synonyms expansion of gene and protein names V Pillet, M Zehnder, AK Seewald, AL Veuthey, J Petrak Bioinformatics 21 (8), 1743-1744, 2005	28	2005
Using@ Twitter conventions to improve# LOD-based named entity disambiguation G Gorrell, J Petrak, K Bontcheva The Semantic Web. Latest Advances and New Domains: 12th European Semantic …, 2015	25	2015
Hybrid Decision Tree Learners with Alternative Leaf Classifiers: An Empirical Study. AK Seewald, J Petrak, G Widmer FLAIRS 1, 407-411, 2001	25	2001
A deep neural network sentence level classification method with context information X Song, J Petrak, A Roberts arXiv preprint arXiv:1809.00934, 2018	20	2018
On the use of fast subsampling estimates for algorithm recommendation J Fürnkranz, J Petrak, P Brazdil, C Soares Technical Report, Austrian Research Institute for Artificial Intelligence, 2002	20	2002
Digging for Peace: Using Machine Learning Methods for Assessing International Conflict Databases' R Trappl, J Fürnkranz, J Petrak ECAI, 453-457, 1996	18	1996
Random indexing for finding similar nodes within large RDF graphs D Damljanovic, J Petrak, M Lupu, H Cunningham, M Carlsson, ... The Semantic Web: ESWC 2011 Workshops: ESWC 2011 Workshops, Heraklion …, 2012	17	2012
Searching for patterns in political event sequences: Experiments with the KEDS database K Kovar, J Fürnkranz, J Petrak, B Pfahringer, R Trappl, G Widmer Cybernetics & Systems 31 (6), 649-668, 2000	15	2000
Data Mining–Methoden und Anwendungen J Petrak Östereichisches Forschungszentrum für Artificial Intelligence. Wien http …, 1997	12	1997
An extensible multilingual open source lemmatizer A Aker, J Petrak, F Sabbah Proceedings of the International Conference Recent Advances in Natural …, 2017	11	2017

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