演讲人： Gao CongSchool of Computer EngineeringNanyangTechnological University, Singapore时间： 2013 年 6 月 13 日（周四）上午 10:00-11:00地点： 张江校区二教 2303 教室联系人： 杨卫东 (wdyang@fudan.edu.cn) 谢志鹏 (xiezp@fudan.edu.cn)Abstract: Driven by factors such as the increasingly mobile applications, the web is rapidly acquiring a spatial aspect. Specifically, content and users are being geo-tagged, and services are being developed that exploit these tags. Points of interest with a web presence, called spatial web objects, have a location as well as a textual description. Spatio-textual queries return such objects that are near a location argument and are relevant to a text argument. An important element in enabling such queries is to be able to rank spatial web objects. Another is to be able to determine the relevance of an object to a query. Yet another is to enable the efficient processing of such queries. The talk covers recent results on spatial web object ranking and spatio-textual querying obtained by the speaker and his colleagues. Bio: Gao Cong is currently an Assistant Professor in the School of Computer Engineering, Nanyang Technological University (NTU). Before joining NTU, he was an Assistant professor in Aalborg University, Denmark (2008-2009). Before that, he worked as a researcher at the Microsoft Research Asia. From 2004 to 2006, he worked as a postdoc research fellow in University of Edinburgh. He earned his Ph.D. in Computer Science from National University of Singapore in 2004.His general research interests include data management, data mining, and information retrieval. His work was published in database, data mining, and information retrieval conferences, such as ACM SIGMOD, VLDB, ACM KDD, ICDE, WWW, ACM SIGIR, ACM CIKM, ACL, etc. He often serves as a PC member for the aforementioned conferences.
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