Our laboratory studies from foundation to application of computer science to open up ubiquitus society in this Web era.
As information technology for active use of information is becoming full on the Web in this era of information flood, our studies have focused on Web mining and knowledge discovery from text for supporting users understand its meaning in a short time and communicate each other. Some selected topics are as follows: automatic text summarization, question-answering system, paraphrasing, Web mining semantic expression extraction such as cause of the traffic accident expression, the performance factor of the company.
Research on design and analysis of algorithms and computational complexity of graph and network problems are conducted. Emphasis is put on newly emerged problems, including parallel and destributed problems, by the development of Internet and mobile communication technologies.