Paper: Question Terminology And Representation For Question Type Classification

ACL ID W02-1410
Title Question Terminology And Representation For Question Type Classification
Venue CompuTerm International Workshop On Computational Terminology
Session
Year 2002
Authors

Question terminology isasetoftermswhichap- pear in keywords, idioms and xed expressions commonly observed in questions. This paper investigateswaystoautomaticallyextractques- tionterminologyfromacorpusofquestionsand represent them for the purposeof classifyingby question type. Ourkeyinterestistoseewhether or not semantic features can enhance the repre- sentation of strongly lexical nature of question sentences. We compare two feature sets: one with lexical features only, and another with a mixture of lexical and semantic features. For evaluation, we measure the classi cation accu- racy made bytwomachine learning algorithms, C5.0 and PEBLS, by using a procedure called domain cross-validation, which e ectively mea- sures the domain transferability of features.