Sneha Rajana


pdf bib
KnowYourNyms? A Game of Semantic Relationships
Ross Mechanic | Dean Fulgoni | Hannah Cutler | Sneha Rajana | Zheyuan Liu | Bradley Jackson | Anne Cocos | Chris Callison-Burch | Marianna Apidianaki
Proceedings of the 2017 Conference on Empirical Methods in Natural Language Processing: System Demonstrations

Semantic relation knowledge is crucial for natural language understanding. We introduce “KnowYourNyms?”, a web-based game for learning semantic relations. While providing users with an engaging experience, the application collects large amounts of data that can be used to improve semantic relation classifiers. The data also broadly informs us of how people perceive the relationships between words, providing useful insights for research in psychology and linguistics.

pdf bib
Learning Antonyms with Paraphrases and a Morphology-Aware Neural Network
Sneha Rajana | Chris Callison-Burch | Marianna Apidianaki | Vered Shwartz
Proceedings of the 6th Joint Conference on Lexical and Computational Semantics (*SEM 2017)

Recognizing and distinguishing antonyms from other types of semantic relations is an essential part of language understanding systems. In this paper, we present a novel method for deriving antonym pairs using paraphrase pairs containing negation markers. We further propose a neural network model, AntNET, that integrates morphological features indicative of antonymy into a path-based relation detection algorithm. We demonstrate that our model outperforms state-of-the-art models in distinguishing antonyms from other semantic relations and is capable of efficiently handling multi-word expressions.