Abstract
A researcher studies a new target domain through a search of papers. However, an efficient search is difficult if the information demands are ambiguous. To solve this problem, it is necessary prior to a search of the papers to have an understanding of the entirety of the research field and an overview of the research topics. In this paper, we propose a technique to extract the research topics by using author-keyword relationship in a specified research area. And we introduce the prototype system based on our proposal technique.
