Marina Sokolova


2018

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Thumbs Up and Down: Sentiment Analysis of Medical Online Forums
Victoria Bobicev | Marina Sokolova
Proceedings of the 2018 EMNLP Workshop SMM4H: The 3rd Social Media Mining for Health Applications Workshop & Shared Task

In the current study, we apply multi-class and multi-label sentence classification to sentiment analysis of online medical forums. We aim to identify major health issues discussed in online social media and the types of sentiments those issues evoke. We use ontology of personal health information for Information Extraction and apply Machine Learning methods in automated recognition of the expressed sentiments.

2017

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Inter-Annotator Agreement in Sentiment Analysis: Machine Learning Perspective
Victoria Bobicev | Marina Sokolova
Proceedings of the International Conference Recent Advances in Natural Language Processing, RANLP 2017

Manual text annotation is an essential part of Big Text analytics. Although annotators work with limited parts of data sets, their results are extrapolated by automated text classification and affect the final classification results. Reliability of annotations and adequacy of assigned labels are especially important in the case of sentiment annotations. In the current study we examine inter-annotator agreement in multi-class, multi-label sentiment annotation of messages. We used several annotation agreement measures, as well as statistical analysis and Machine Learning to assess the resulting annotations.

2015

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Learning Relationship between Authors’ Activity and Sentiments: A case study of online medical forums
Marina Sokolova | Victoria Bobicev
Proceedings of the International Conference Recent Advances in Natural Language Processing

2014

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Recognition of Sentiment Sequences in Online Discussions
Victoria Bobicev | Marina Sokolova | Michael Oakes
Proceedings of the Second Workshop on Natural Language Processing for Social Media (SocialNLP)

2013

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Can I Hear You? Sentiment Analysis on Medical Forums
Tanveer Ali | David Schramm | Marina Sokolova | Diana Inkpen
Proceedings of the Sixth International Joint Conference on Natural Language Processing

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NLP can help parents to understand rare diseases
Marina Sokolova | Ilya Ioshikhes | Hamid Poursepanj | Alex MacKenzie
Proceedings of the Workshop on NLP for Medicine and Biology associated with RANLP 2013

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Opinion Learning from Medical Forums
Tanveer Ali | Marina Sokolova | David Schramm | Diana Inkpen
Proceedings of the International Conference Recent Advances in Natural Language Processing RANLP 2013

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Authorship Attribution in Health Forums
Victoria Bobicev | Marina Sokolova | Khaled El Emam | Stan Matwin
Proceedings of the International Conference Recent Advances in Natural Language Processing RANLP 2013

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How Joe and Jane Tweet about Their Health: Mining for Personal Health Information on Twitter
Marina Sokolova | Stan Matwin | Yasser Jafer | David Schramm
Proceedings of the International Conference Recent Advances in Natural Language Processing RANLP 2013

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What Sentiments Can Be Found in Medical Forums?
Marina Sokolova | Victoria Bobicev
Proceedings of the International Conference Recent Advances in Natural Language Processing RANLP 2013

2011

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Sentiments and Opinions in Health-related Web messages
Marina Sokolova | Victoria Bobicev
Proceedings of the International Conference Recent Advances in Natural Language Processing 2011

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Building a Patient-based Ontology for User-written Web Messages
Marina Sokolova | David Schramm
Proceedings of the International Conference Recent Advances in Natural Language Processing 2011

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Evaluation Measures for Detection of Personal Health Information
Marina Sokolova
Proceedings of the Second Workshop on Biomedical Natural Language Processing

2009

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Classification of Emotion Words in Russian and Romanian Languages
Marina Sokolova | Victoria Bobicev
Proceedings of the International Conference RANLP-2009

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Classification of Opinions with Non-affective Adverbs and Adjectives
Marina Sokolova | Guy Lapalme
Proceedings of the International Conference RANLP-2009

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Personal Health Information Leak Prevention in Heterogeneous Texts
Marina Sokolova | Khaled El Emam | Sean Rose | Sadrul Chowdhury | Emilio Neri | Elizabeth Jonker | Liam Peyton
Proceedings of the Workshop on Adaptation of Language Resources and Technology to New Domains

2008

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The Telling Tail: Signals of Success in Electronic Negotiation Texts
Marina Sokolova | Vivi Nastase | Stan Szpakowicz
Proceedings of the Third International Joint Conference on Natural Language Processing: Volume-I