Yuji Kanno

Apparatus for retrieving similar documents and apparatus for extracting relevant keywords

Document storing and managing system

Keyword extracting system and text retrieval system using the same

Distributed document retrieval method and device, and distributed document retrieval program and recording medium recording the program

Dictionary and index creating system and document retrieval system

Building and updating of co-occurrence dictionary and analyzing of co-occurrence and meaning

Text classifying parameter generator and a text classifier using the generated parameter

Full-text search apparatus utilizing two-stage index file to achieve high speed and reliability of searching a text which is a continuous sequence of characters

Constructing method of finite-state machine performing transitions according to a partial type of success function and a failure function

Document searching apparatus