Abstract
Recently, various fields of science are becoming increasingly specialization. There is a necessity for performing the research in a lot of fields with collaboration. This paper proposes a recommendation system based on Collaborative Filltering for automatically obtain a research partner from the network. By using data from a bibliographic database, this network is constructed in which the nodes are researchers and two researchers are connected if they have co-authored a paper. The proposed system estimates the usefulness of unknown co-authored researcher using Collaborative Filtering algorithms. This suggested the proposed system can be used for discovering useful researchers.