Paper: Concurrent Acquisition of Word Meaning and Lexical Categories

ACL ID D12-1059
Title Concurrent Acquisition of Word Meaning and Lexical Categories
Venue Conference on Empirical Methods in Natural Language Processing
Session Main Conference
Year 2012

Learning the meaning of words from ambigu- ous and noisy context is a challenging task for language learners. It has been suggested that children draw on syntactic cues such as lexical categories of words to constrain potential ref- erents of words in a complex scene. Although the acquisition of lexical categories should be interleaved with learning word meanings, it has not previously been modeled in that fash- ion. In this paper, we investigate the inter- play of word learning and category induction by integrating an LDA-based word class learn- ing module with a probabilistic word learning model. Our results show that the incremen- tally induced word classes significantly im- prove word learning, and their contribution is comparable to that of manually assigned part of speech categories....