Research Themes

Laboratory of Knowledge Base

Themes

Comparing News Articles from Multiple Countries

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In recent years, it has become easier to read news articles from many countries via the Internet.  In general, the contents of articles likely reflect the interests of intended readers.  By comparing the contents of news articles, we can analyze differences in reader interests in various countries.  For example, we could consider news articles when a summit meeting (e.g. G8) is held.  We can analyze interest in the meeting by looking at the number of relevant articles over time, and analyze differences in interest by comparing their contents.

In order to analyze such differences in interest, we have extended previous methods based on extracting keywords and introduced a new technique that also uses keywords that arise when comparing to other countries.  For, economic and security topics are recognized as important topics and reported in summit-related articles in all countries.  However, topics such as human rights and global warming are reported depending on the interests of each country.  Our laboratory introduced a method for contrast set mining, where we extract characteristics by comparing differences between data sets.  We are also introduced in applying these techniques to news articles and other data.

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Knowledge Exploratory Project for Nanocrystal Device Development

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“Knowledge exploratory project for nanocrystal device development” aims to support this knowledge transfer process. This project is one of the real use cases based on collaboration between nanocrystal device engineers and computer science researchers.

The nanocrystal device development process is not well systematized, and it requires both engineering knowledge and craftsmanship skills. For example, nanocrystal device design based on knowledge of first principles, such as atomic physics, does not mean the end of the development process. Because the manufacturing process may affect the quality of the nanocrystal device, much trial and error is required before the final product can be realized. Skilled engineers can conduct this experiment planning more effectively than novices.

Please check a project web site for detail.
CorpusExample

Faculty

Makoto Haraguchi
Makoto Haraguchi
Position
Professor
Specialized field
graph mining, text mining, motion analysis, motion planning
Hobby

Paying attention to changes or trends just happening in the world we live in, universal features and theories not depending on each time and place will guide you to realize what are essential features and aspects we have to make aware of.
Some of those features and theories are written in textbooks.
However we are always required to interpret and modify them so as to make use of them for our problem solving activities.

Masaharu Yoshioka
Masaharu Yoshioka
Position
Associate Professor
Specialized field
Information retrieval, knowledge management, design support, nanoinformatics
Hobby
Skiing, search and discover restaurants

Studying computer science and information technology offers you a new tool to analyze the real world.
You can see different perspective of human activities from the view point of information processing.

Yoshiaki Okubo
Yoshiaki Okubo
Position
Assistant Professor
Specialized field
Knowledge discovery, data mining
Hobby