Using Semantic Relations with World Knowledge for Question Answering

Two research directions are to be explored in realizing our group’s TREC QA system in 2006. The first one is to investigate the possibilities of applying linguistically sophisticated grammatical framework in tackling the realworld natural language processing task such as question answering. The other is to exploit the possible world’s entities and relations as described in online encyclopedia in adding redundancy and hidden relations as those contained in the TREC corpus where the entities and relations are only implicitly mentioned and related. Our focus is on the factoid and list question as these two types of questions benefit greatly from our proposed method. We do include an experimental component in handling the ”other” question type.