Paper: User Input and Interactions on Microsoft Research ESL Assistant

ACL ID W09-2111
Title User Input and Interactions on Microsoft Research ESL Assistant
Venue Innovative Use of NLP for Building Educational Applications
Session
Year 2009
Authors

ESL Assistant is a prototype web-based writ- ing-assistance tool that is being developed for English Language Learners. The system fo- cuses on types of errors that are typically made by non-native writers of American Eng- lish. A freely-available prototype was dep- loyed in June 2008. User data from this system are manually evaluated to identify writing domain and measure system accuracy. Combining the user log data with the eva- luated rewrite suggestions enables us to de- termine how effectively English language learners are using the system, across rule types and across writing domains. We find that repeat users typically make informed choices and can distinguish correct sugges- tions from incorrect.