paper.dviTHE INSTITUTE OF ELECTRONICS, INFORMATION AND COMMUNICATION ENGINEERS TECHNICAL REPORT OF IEICE. † † † † NTT 619–0237 2–4 E-mail: †{yukawa,yoshida,kuwabara}@cslab.kecl.ntt.co.jp , Toward Peer-to-Peer Collaborative Information Retrieval on Personal Repositories Takashi YUKAWA† , Sen YOSHIDA† , and Kazuhiro KUWABARA† † NTT Communication Science Laboratories, NTT Corporation Hikari-dai 2–4, Seika-cho
