Data acquisition device, data acquisition method, and recording medium

A data acquisition method executed by a data acquisition device including a processor configured to execute a program and a storage device configured to store the program, wherein

• the processor is accessible to correspondence information that defines correspondence between an attribute keyword indicating an attribute and a non-attribute keyword that does not indicate the attribute, and
• the data acquisition method includes, as processes executed by the processor:
• a specifying process of specifying the attribute keyword corresponding to the non-attribute keyword by referring to the correspondence information when the search keyword is the non-attribute keyword with respect to each of a plurality of search keywords;
• an assigning process of assigning the search keyword to a character string in a retrieval target document corresponding to the search keyword as an annotation and assigning the attribute keyword to a character string in the retrieval target document corresponding to the attribute keyword specified by the specifying process as the annotation;
• an extraction process of extracting a specific table assigned with the annotation by the assigning process from one or more tables present in the retrieval target document;
• a first selection process of selecting at least one of a specific row and a specific column relevant to each of the plurality of search keywords from rows and columns that constitute the specific table extracted by the extraction process on the basis of the annotation;
• and
• an acquisition process of acquiring a cell in the specific table specified by a first selection result selected by the first selection process.

A processor-readable recording medium having a data acquisition program recorded thereon, wherein

• the processor is accessible to correspondence information that defines correspondence between an attribute keyword indicating an attribute and a non-attribute keyword that does not indicate the attribute, and
• the data acquisition program causing the processor to execute:
• a specifying process of specifying the attribute keyword corresponding to the non-attribute keyword by referring to the correspondence information when the search keyword is the non-attribute keyword with respect to each of a plurality of search keywords;
• an assigning process of assigning the search keyword to a character string in a retrieval target document corresponding to the search keyword as an annotation and assigning the attribute keyword to a character string in the retrieval target document corresponding to the attribute keyword specified by the specifying process as the annotation;
• an extraction process of extracting a specific table assigned with the annotation by the assigning process from one or more tables present in the retrieval target document;
• a first selection process of selecting at least one of a specific row and a specific column relevant to each of the plurality of search keywords from rows and columns that constitute the specific table extracted by the extraction process on the basis of the annotation;
• and
• an acquisition process of acquiring a cell in the specific table specified by a first selection result selected by the first selection process.