More about HKUST
A Survey on Interactive Queries
PhD Qualifying Examination Title: "A Survey on Interactive Queries" by Mr. Qixu CHEN Abstract: The field of multi-criteria decision-making has witnessed a growing interest in interactive queries. Given a dataset, interactive queries first learn the user's preference by asking the user several rounds of simple questions, and then the relevant tuples meeting the user's preference are retrieved. This novel query type can be viewed as combining the strengths of the well-known top-k and skyline queries. In particular, it eliminates the need for users to specify a preference function in advance, which is a demanding and sometimes impractical requirement in top-k queries. Moreover, it provides a controlled number of tuples as output, addressing the potential issue of overwhelming results that can occur in skyline queries. This survey begins by presenting the conventional top-k query and skyline query. Subsequently, we discuss algorithms for two popular types of interactive queries: the interactive regret-minimizing query and the interactive best point retrieval query. We examine the strengths and limitations associated with each approach. We also introduce several relevant fields which are closely related to interactive queries. To conclude, we point out the main challenges encountered in interactive query research, and provide new directions for future work. Date: Friday, 3 May 2024 Time: 4:00pm - 6:00pm Venue: Room 5506 Lifts 25/26 Committee Members: Prof. Raymond Wong (Supervisor) Prof. Ke Yi (Chairperson) Dr. Wilfred Ng Prof. Xiaofang Zhou