2010年9月24日，美国Clemson大学计算机学院副教授王子俊应邀来学院访问。上午10时，王子俊教授在计算机学院学术报告厅作了题为“WEST：Weighted-Edge based Similarity Measurement Tools for Word Semantics”的学术报告。计算机学院2010级同学参加了报告会，报告会由李曦老师主持。
报告会上，王子俊教授向同学们介绍了他在语义相似度分析方面的研究新成果。王教授指出，人类对于由分类引起的语义差别更为敏感，在此基础上，他提出了一种新的基于加权边缘的语义相似性度量方法——WEST方法。该方法将单词与它们的LCA（Least Common Ancestor）规范等级整合到一张距离呈指数下降的加权图上，实验研究表明新方法所得到的相似值与人类认识最为接近。王教授的课题组还在此基础上实现了语义相似度检测的Web服务。
接着，王教授通过一些生动的例子展示了语义相似度的分类方法，介绍了语义相似度分析的复杂性以及如何利用WEST方法来分析语义相似度。他还演示了WEST方法的Web应用，并用实例说明了由分类引起的语义差别会更为明显。
报告后的互动环节中，同学们踊跃提问：“如何区别一个词语的不同词性”，“如何在不同的上下文里区别语义”，“这种方法是否可以应用到其他领域”。王教授都一一做了详细解答。
王教授的报告丰富而生动，赢得了同学们的好评。
报告人简介：
Dr. James Z. Wang graduated from USTC with his BS and MS degrees in Computer Science. He obtained his PhD degree in Computer Science at University of Central Florida in USA. He had been working in Computer software industry for 9 years before joining Clemson University in 2002. Currently, he is a tenured Associate Professor in the School of Computing at Clemson University, a US public university ranked 23rd nationally by US News & World Report this year.
Dr. Wang’s research interests include Database, Multimedia, Bioinformatics, Information Retrieval, Wireless Networks, Distributed Computing, etc. In past years, he has published 60 papers in various journals and conference proceedings. His research activities have been supported by federal and industrial grants, with a total exceeding 1.5 million USD. He is currently serving as an associate editor for the International Journal on Data Mining and Bioinformatics. He is a senior member of IEEE and ACM.
