Hitachi, Ltd.

Kohsuke Yanai

Misa Sato

Toshihiko Yanase

Toshinori Miyoshi

Konagi Uchibe

An information processing system comprises a processor for executing a program, a storage device for storing the program, a word dictionary database for storing a word group corresponding to a group of words grouped according to a predetermined attribute and a rule database for storing a tree structure pattern obtained by abstracting tree structure data indicating relations between words in a sentence, by use of the word group. The processor executes acceptance processing of accepting a maintenance request, and maintenance processing of, when the maintenance request accepted in the acceptance processing is a maintenance request related to a word, maintaining the word dictionary database as for a word group, the word belonging to the word group, while when the maintenance request is a maintenance request related to the tree structure pattern, maintaining the rule database as for the tree structure pattern.

Information processing system and information processing method

A data acquisition device 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 is configured to execute: specifying the attribute keyword corresponding to the non-attribute keyword when the search keyword is the non-attribute keyword with respect to each of a plurality of search keywords; assigning the search keyword to a character string in a retrieval target document corresponding to the search keyword; extracting a specific table assigned with the annotation from one or more tables; 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 on the basis of the annotation; and acquiring a cell in the specific table specified by a first selection result.

Data acquisition device, data acquisition method, and recording medium

A data processing system executes data processing by accessing a database. The database has a data structure including extraction target data of natural language from a data source and a search target data that is associated with the extraction target data and that can be interpreted in the data processing, and the search target data includes first attribute information of natural language indicating attribute of the extraction target data and annotation information by associating a noun phrase of natural language indicating annotation related to the extraction target data and second attribute information of natural language indicating an attribute of the annotation, the first attribute information is information searched with a first search character string specific to the data processing when an input character string is given, and the annotation information is information searched based on the input character string to the data processing when the input character string is given.

Data processing system, data processing method, and data structure

A sentence creation system, which outputs an opinion sentence on an agenda, includes: an input unit into which the agenda is input; an agenda analyzing unit analyzing the agenda and judging the polarity of the agenda and a keyword used for searching; a searching unit searching for articles using the keyword and a disputed point word showing a disputed point in the discussion; a disputed point determining unit for determining the disputed point used for creating the opinion sentence; a sentence extracting unit for extracting sentences in which the disputed point is described among the articles output by the searching unit; a sentence sorting unit for creating sentences by sorting the extracted sentences; an evaluating unit for evaluating the sentences; a paraphrasing unit for inserting appropriate conjunctions into the sentences; and an output unit for outputting the most highly evaluated sentence among the plural sentences as the opinion sentence.

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Tokyo, Japan

Kohsuke Yanai