International Conference on Information and Knowledge Technology

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Open-domain question classification and completion in conversational information search

Authors :

Omid Mohammadi Kia¹ Mahmood Neshati² Mahsa Soudi Alamdari³

1- دانشگاه شهید بهشتی 2- دانشگاه شهید بهشتی 3- دانشگاه تهران

Keywords :

information retrieval, conversational search, classification

Abstract :

Searching for new information requires talking to the system. In this research, an Open-domain Conversational information search system has been developed. This system has been implemented using the TREC CAsT 2019 track, which is one of the first attempts to build a framework in this area. According to the user's previous questions, the system firstly completes the question (using the first and the previous question in each turn) and then classifies it (based on the question words). This system extracts the related answers according to the rules of each question. In this research, a simple yet effective method with high performance has been used, which on average, extracts 20% more relevant results than the baseline.