RETRIEVAL EXPRESSION VISUALIZATION DEVICE, RETRIEVAL SYSTEM, RETRIEVAL EXPRESSION VISUALIZATION METHOD, AND RETRIEVAL EXPRESSION VISUALIZATION PROGRAM

摘要

PROBLEM TO BE SOLVED: To make it possible to grasp content and validity of a retrieval expression or a retrieval expression set that is the set of the same.SOLUTION: A retrieval expression visualization device includes retrieval expression set input means 501 for inputting a retrieval expression set including one or more retrieval expressions and first display means 502 that hierarchizes at least part of the retrieval expression set into a structure having a node corresponding to a retrieval expression or a conditional expression included in the retrieval expression and an operator edge that is an edge connecting between nodes and corresponds to a retrieval operator to display it.SELECTED DRAWING: Figure 36