Yes/No TYPE QUESTION TREE PREPARING DEVICE, Yes/No TYPE QUESTION TREE PREPARING METHOD, PROGRAM AND RECORDING MEDIUM

摘要

PROBLEM TO BE SOLVED: To provide a Yes/No type question tree preparing device, a Yes/No type question tree preparing method, a program and a recording medium that can prepare a Yes/No type question tree to efficiently select data even with an interface with scanty input-output means in using previously registered retrieval conditions to select data from a large-scale database.;SOLUTION: The optimum Yes/No type question tree is rapidly prepared by excluding retrieval conditions with no retrieval result existing in a data group to be divided prior to the pattern preparation of the Yes/No type question tree without preparing all the considered question tree composition patterns.;COPYRIGHT: (C)2003,JPO