The IPSJ - Information Processing Society of Japan (Japanese: 情報処理学会) is a Japanese learned society for computing. Founded in 1960, it is headquartered in Tokyo, Japan. IPSJ publishes a magazine and several professional journals mainly in Japanese, and sponsors conferences and workshops, also mainly conducted in Japanese. It has nearly 20,000 members. IPSJ is a full member of the International Federation for Information Processing. Source: Wikipedia (en)