时间：3月22日 11：00 — 12：00
Abstract： Blockchains have recently been under the spotlight due to the boom of cryptocurrencies and decentralized applications. There is an increasing demand for searching the data stored in a blockchain database. To ensure query integrity, a user can maintain the entire blockchain database and search the data locally. However, this approach is not economic, if not infeasible, because of the blockchain’s huge data size and considerable maintenance costs. In this talk, we present some of our recent efforts towards index-based and integrity-assured search in scalable blockchain systems.
Bio：Jianliang Xu is a Professor in the Department of Computer Science, Hong Kong Baptist University (HKBU), where he leads the Database Research Group and directs the Blockchain Lab. He received his BEng degree from Zhejiang University and his PhD degree from Hong Kong University of Science and Technology. His current research interests include big data management, data security and privacy, and blockchain technology. With an h-index of 45, he has published more than 200 technical papers in these areas, most of which appeared in leading journals and conferences including SIGMOD, PVLDB, ICDE, TODS, TKDE, and VLDBJ. He has served as a program co-chair for a number of major international conferences including APWeb-WAIM 2018 and IEEE MDM 2019. He is/was an Associate Editor for IEEE Transactions on Knowledge & Data Engineering (TKDE) and Proceedings of the VLDB Endowment (PVLDB).