Automatic Question-Answering System for Factoid & Non-Factoid Open-Domain Questions
Mariia KhvalchikOral Defence Date:
Thursday, May 11, 2017 - 12:30Location:
Assist. Prof Anagha Kulkarni, Assoc. Prof. Hui Yang, & Prof. Dragutin Petkovic
We present an end-to-end system for open-domain non-factoid question-answering that consists of three components. (1) The query formulation module is tasked with transforming the verbose, and often non-grammatical and noisy question into a boolean query of few keywords. The generated query is then run through a commercial search engine to obtain matching documents from the Web. (2) The candidate answer generation module extracts potential answers from the retrieved documents. (3) The answer selection module is responsible for identifying the best answer based on various criteria. A thorough empirical evaluation using multiple datasets demonstrates that the proposed approach is highly competitive.