Word frequency effects in high dimensional co occurrence models a new approach

Publication

AuthorsShaoul, Cyrus OAWestbury, Chris OA

Year2006

JournalBehavior Research Methods

DOI10.3758/bf03192768

Abstract

The HAL (hyperspace analog to language) model of lexical semantics uses global word co-occurrence from a large corpus of text to calculate the distance between words in co-occurrence space. We have implemented a system called HiDEx (High Dimensional Explorer) that extends HAL in two ways: It removes unwanted influence of orthographic frequency from the measures of distance, and it finds the $\backslash$nnumber of words within a certain distance of the word of interest (NCount, the number of neighbors). These two changes to the HAL model produce measures of word neighborhood density that are reliably predictive of human lexical decision reaction times.

LanguageEnglish

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Word frequency effects in high dimensional co occurrence models a new approach

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