The research value and market potentials of "big data" in real estate industry are well acknowledged with the development of technologies. But research in this area is far away from systematic and thorough context. Aiming at this issue, we systematically examined the research outcomes related to real estate big data. It gives a comment to current research status and proposes the future directions in this area from the four aspects, i.e. the hierarchical structuring of real estate "Big Data", integrated implementation, exchange and pricing systems, and the market operation system, in order to assist the researchers for their future works.
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