Abstract: An information search system includes: a database configured to store service support information; and an information management device configured to search for predetermined information from the service support information, the information management device including a processor configured to receive an input of a query including a keyword, from a searcher, receive an input of classification information to which a narrowing keyword belongs, present a narrowing keyword belonging to the input classification information and having a correlative relation with the keyword, in a selectable manner, and execute a searching process across the database, based on the input keyword and the selected narrowing keyword.

Abstract: An information search system, including: a database (12); a query sentence acceptance unit (26) that accepts a query sentence; an inputted search keyword extractor (44) that extracts an inputted search keyword from the query sentence; a shared keyword dictionary (30) in which relevant keywords are registered in association with each other; a local keyword dictionary (102) in which district keywords used in particular districts are registered; a candidate search keyword reader (32) that reads out a keyword that is relevant to the inputted search keyword; and a retrieval executor (40) that executes retrieval processing from the database using the inputted search keyword, wherein, in a case in which the inputted search keyword is not registered in the local keyword dictionary, the candidate search keyword reader refers to the shared keyword dictionary, so as to read out a keyword that is relevant to the inputted search keyword.

Abstract: Provided is an information search system by which high-speed search is possible commonly used across a plurality of districts, the system including: a database (12) that stores a plurality of pieces of information that are text-searchable; a query sentence acceptance unit (26) that accepts a query sentence; an inputted search keyword extractor (44) that extracts an inputted search keyword from the query sentence; a retrieval executor (40) that executes retrieval processing from the database using the inputted search keyword; a local management apparatus (100) that stores district material in a local database (104); and an information management apparatus (110) that executes character extraction processing on the material stored in the local database and converts a file format of the material according to a size thereof, stores the material in a temporary memory as stored material, and outputs the stored material to the database.

Abstract: Provided is an information search system that enables a searcher to efficiently find information they want to know, the system including: a database (12) that stores a plurality of pieces of information that are text-searchable; a query sentence acceptance unit (26) that accepts a query sentence in a natural language format; an inputted search keyword extractor (44) that extracts an inputted search keyword from the query sentence; a retrieval executor (40) that executes retrieval processing from the database using the inputted search keyword, along with a keyword relevant to the inputted search keyword; and a keyword dictionary (30) in which words associated with categories are registered, wherein the retrieval executor acquires, from the keyword dictionary, words associated with one of the categories selected by a searcher, re-sorts information retrieved as a result of the retrieval processing, based on the acquired words, and displays the information to the searcher.

Abstract: An information search system includes: a database configured to store service support information; and an information management device configured to search for predetermined information from the service support information, the information management device including a processor configured to receive an input of a query including a keyword, from a searcher, receive an input of classification information to which a narrowing keyword belongs, present a narrowing keyword belonging to the input classification information and having a correlative relation with the keyword, in a selectable manner, and execute a searching process across the database, based on the input keyword and the selected narrowing keyword.