Paper: Word Segmentation as General Chunking

ACL ID W11-0305
Title Word Segmentation as General Chunking
Venue International Conference on Computational Natural Language Learning
Session Main Conference
Year 2011
Authors

During language acquisition, children learn to segment speech into phonemes, syllables, morphemes, and words. We examine word segmentation specifically, and explore the possibility that children might have general- purpose chunking mechanisms to perform word segmentation. The Voting Experts (VE) and Bootstrapped Voting Experts (BVE) algo- rithms serve as computational models of this chunking ability. VE finds chunks by search- ing for a particular information-theoretic sig- nature: low internal entropy and high bound- ary entropy. BVE adds to VE the abil- ity to incorporate information about word boundaries previously found by the algorithm into future segmentations. We evaluate the general chunking model on phonemically- encoded corpora of child-directed speech, and show that it is consis...