About US
recently update: 2011-01-13
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SJTU Department of Computer Science Sino-Germany Joint Lab for Language Technology
UDS-SJTU Joint research lab for language technology has been established in March 2005 and located in the Minhang campus of SJTU. It is the result of the long-term cooperation between Shanghai Jiaotong University (SJTU) and University of the Saarland(UDS) , German research center for artificial intelligence. University of the Saarland, a renowned university in Germany, has solid strength and high reputation in the area of computer science. SJTU is one of the oldest and best universities in China. Both research teams from both universities have made a lot of achievements after many years successful scientific cooperation including joint application and research on projects, research staff exchange, joint workshops holding and so on.
The language technology has developed rapidly with the tremendous expansion of the Internet. Language processing is embedded in many software applications assisting their users in exploiting the wealth of digital content without drowning in the growing flood of information. Human language is the fabric of the multi-medial WWW, because language is the medium in which society and organizations express their precious knowledge. Language technology can make computers understand human languages, realize intelligent processing and provide more service for human beings. As a new platform for the research and cooperation of the two universities, the joint lab will join forces to develop powerful multilingual applications and to shorten their way from the research lab to commercialization.
There are about 20 undergraduate students, graduate students, Ph.D students and research staffs in the joint lab.
Current Research:
- Microblog Events information extraction and analysis
Microblogs have become the second largest news media based on the 2011 survey report on the Chinese Network Opinion Index, published by the Public Opinion Research Institute of the Communication University of China. Huge amount of comments or opinions are available on the Internet, with the fast growing of users and the population of high advanced mobile devices. According to the analysis, the source of Microblog events is either from news reports or from the posts of some users. Our research is mainly focused on the comments extraction from the Microblogs about some specific event, which includes the extraction of aspects of events, comments and their relationships. Several problems need to be solved, such as how to identify comments or opinions and their objects based on the features of lexicon, syntax and event types. Meanwhile, we will explore the diversities of the contents and distribution properties among news media and Microblogs.
Research Group: Zhou Xiao (Group Leader), Zhou Zhenyu, Lu Pengchen, Chen Bin, Wang Wei, Zhu Qifeng. - Topic Evolution Research
Topic Evolution aims at how a topic changes over time from its content and its strength. It has wide applications, such as detecting the new research trends in academic research fields, discovering the propagation of a topic in the social networks, and describing the evolution of events in the news reports. There are three stages, namely topic discovery, topic relating between different time periods and topic evolution. Topic discovery is to mine the semantic information from a large-scale text document collection; topic relating concerns on how to find the same or similar topics from different time periods; topics evolution constructs an evolution path across the time axis. The evolution results show that there are one-to-one, many-to-one and one-to-many relationships among topics of different periods.
Research Group: Zhang Jian (Group Leader), Zhou Zhenyu, Zhu Qifeng
Completed Project:
- Threads and Topics Detection for News Events
Duration: 2009~2011
Group Leader: Li, Fang
Group Members: Chu Keming, Wang Quanjian, Ding Xiaoshan, Wang Letian, Qian Zheyi, Wang Shun, Shan Bin - Fine-grained Research Over Chinese Text Opinion Mining
Duration: 2008~2010
Group Leader: Yao Tianfang
Chinese Group Members: Zhang Dongmo, Li Linlin, Zhang Xiaokai, Yin Hang, Huang Gaohui, Liu Quansheng, Song Hongyan, Liu Jun, Zhang Xiaojun, Chen Mosha
German Members: Hans Uszkoreit, Xu Feiyu, Chen Xiweng, Wang Rui - Teenage Interests Analysis Based on Web Access Log
Duration:
Group Leader: Li Fang
Group Members: Li Feng, Wu Yanchen, Wang Xingguang, Li Yihong - An Intelligent Platform for Information Retrieval
Duration: 2004~2006
Group Leader: Li Fang
Group Members: Ying Han, Liu Kebin, Liu Lei, Fi Feng, Zhou Kai
Contact
- Address： Electronic,Information and Electrical Engineering Building 3, Room 501 502, Shanghai Jiaotong University, 800 Road Dongchuan, Minhang District, Shanghai.
- Zip Code：200240
- E-mail：fli@sjtu.edu.cn