Modeling human performance in statistical word segmentation.
The ability to discover groupings in continuous stimuli on the basis of distributional information is present across species and across perceptual modalities. We investigate the nature of the computations underlying this ability using statistical word segmentation experiments in which we vary the length of sentences, the amount of exposure, and the number of words in the languages being learned. Although the results are intuitive from the perspective of a language learner (longer sentences, less training, and a larger language all make learning more difficult), standard computational proposals fail to capture several of these results. We describe how probabilistic models of segmentation can be modified to take into account some notion of memory or resource limitations in order to provide a closer match to human performance.
Frank
Michael C
MC
Department of Psychology, Stanford University, 450 Serra Mall, Jordan Hall (Building 420), Stanford, CA 94305, USA. mcfrank@stanford.edu
Goldwater
Sharon
S
Griffiths
Thomas L
TL
Tenenbaum
Joshua B
JB
D000161:Acoustic Stimulation; D002755:Choice Behavior / Q000502:physiology; D006801:Humans; D007802:Language; D007804:Language Development; D007858:Learning / Q000502:physiology*; D016015:Logistic Models; D015233:Models, Statistical; D013067:Speech Perception / Q000502:physiology