Concepedia

Author

Johann Petrak

University of SheffieldORCID

Also Known As

J. Petrak, Johann Petrak, Petrak, J., Petrak, Johann

28

Publications

737

Citations

12

H-Index

26

Concepts

All Affiliations

University of Sheffield
JP

About

Johann Petrak is an author at University of Sheffield specializing in engineering, text mining, and natural language processing.

Top Concepts

#ConceptH-IndexPublicationsCitations

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Engineering

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441

2

Data Science

3

3

421

3

Language Studies

2

2

361

4

Public Health

1

1

58

5

Social Sciences

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22

Johann Petrak

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9

Publications

612

Citations

9

H-Index

YearCitations

Analysis of named entity recognition and linking for tweets

Leon Derczynski, Diana Maynard, Giuseppe Rizzo,

Information Processing & Management

2014

341

An Evaluation of Landmarking Variants

Johannes Fürnkranz, Johann Petrak

2001

63

Classification aware neural topic model for COVID-19 disinformation categorisation

Xingyi Song, Johann Petrak, Ye Jiang,

PLoS ONE

2021

58

Team Bertha von Suttner at SemEval-2019 Task 4: Hyperpartisan News Detection using ELMo Sentence Representation Convolutional Network

Ye Jiang, Johann Petrak, Xingyi Song,

2019

42

Adapted TextRank for Term Extraction: A Generic Method of Improving Automatic Term Extraction Algorithms

Ziqi Zhang, Johann Petrak, Diana Maynard

Procedia Computer Science

2018

33

Knowledge discovery in international conflict databases

Johannes Fürnkranz, Johann Petrak, Robert Trappl

Applied Artificial Intelligence

1997

22

A Deep Neural Network Sentence Level Classification Method with Context Information

Xingyi Song, Johann Petrak, Angus Roberts

2018

20

Hybrid Decision Tree Learners with Alternative Leaf Classifiers: An Empirical Study

Alexander K. Seewald, Johann Petrak, Gerhard Widmer

2001

19

Digging for Peace: Using Machine Learning Methods for Assessing International Conflict Databases

Robert Trappl, Johannes Fürnkranz, Johann Petrak

1996

14

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