Paper: Non-English Response Detection Method for Automated Proficiency Scoring System

ACL ID W11-1420
Title Non-English Response Detection Method for Automated Proficiency Scoring System
Venue Innovative Use of NLP for Building Educational Applications
Session
Year 2011
Authors

This paper presents a method for identifying non-English speech, with the aim of support- ing an automated speech proficiency scoring system for non-native speakers. The method uses a popular technique from the language identification domain, a single phone recognizer followed by multiple language- dependent language models. This method determines the language of a speech sample based on the phonotactic differences among languages. The method is intended for use with non- native English speakers. Therefore, the method must be able to distinguish non- English responses from non-native speakers’ English responses. This makes the task more challenging, as the frequent pronunciation er- rors of non-native speakers may weaken the phonetic and phonotactic distinction between English responses ...