Research Officer, National Research Council Canada
Saif is a Research Officer at the National Research Council Canada (NRC). He received his Ph.D. in Computer Science from University of Toronto. He was a Research Associate in the Institute of Advanced Computer Studies at the University of Maryland, College Park, before joining NRC in 2009.
Saif's research interests are in Natural Language Processing, especially
Lexical Semantics. He develops computational models for emotion detection,
word-colour associations, semantic distance, and lexical-semantic relations
such as word-pair antonymy.
Picture: Palau De La Música
Catalana (Palace of Catalan Music)
An Empirical Study on the Effect
of Negation Words on Sentiment. Xiaodan Zhu, Hongyu Guo, Saif
Mohammad and Svetlana Kiritchenko. In Proceedings of the 52nd Annual
Meeting of the Association for Computational Linguistics, June 2014,
State-of-the-Art in Sentiment Analysis of Short Informal Texts.
Svetlana Kiritchenko, Xiaodan Zhu and Saif Mohammad. Journal of Artificial
Intelligence Research, in press.
Generating Music from Literature. Hannah Davis and Saif
M. Mohammad, In Proceedings of the EACL Workshop on Computational
Linguistics for Literature, April 2014, Gothenburg, Sweden.
NRC-Canada: Building the State-of-the-Art in Sentiment Analysis
of Tweets, Saif M. Mohammad, Svetlana Kiritchenko, and Xiaodan
Zhu, In Proceedings of the seventh international workshop on Semantic
Evaluation Exercises (SemEval-2013), June 2013, Atlanta, USA.
Official Rankings: Our team (NRC-Canada) ranked first in detecting sentiment of tweets (task 2B - tweets), first in detecting sentiment of SMS messages (task 2B - SMS), first in detecting sentiment of terms within a tweet (task 2A - tweets), and second in detecting sentiment of terms within an SMS message (task 2A - SMS). About 44 teams participated.
Identifying Purpose Behind Electoral Tweets, Saif Mohammad,
Svetlana Kiritchenko and Joel Martin, In Proceedings of the KDD Workshop
on Issues of Sentiment Discovery and Opinion Mining (WISDOM-2013), August
2013, Chicago, USA.
Portable Features for Classifying Emotional Text, Saif
Mohammad, In Proceedings of the 2012 Conference of the North American
Chapter of the Association for Computational Linguistics: Human Language
Technologies, June 2012, Montreal, Canada.
Using Nuances of Emotion to Identify Personality, Saif
M. Mohammad and Svetlana Kiritchenko, In Proceedings of the ICWSM Workshop
on Computational Personality Recognition, July 2013, Boston, USA.
Generating Extractive Summaries of Scientific Paradigms,
Vahed Qazvinian, Dragomir R. Radev, Saif M. Mohammad, Bonnie Dorr, David
Zajic, Michael Whidby, Taesun Moon. To appear in the Journal of Artificial
Intelligence Research (JAIR).
Last updated: March 2014.