PROBLEM TO BE SOLVED: To accurately extract compressed data corresponding to a retrieval condition. SOLUTION: When compressing document data, the compression processing part 10a compresses the document data, by converting character strings included in the document data and break characters included in the document data into codes, separately. Since the compressed document data are compressed separately for the character strings and the segmentation characters, a retrieval processing part 10c obtains a proper retrieval result even if the compressed data is extracted as it is, on the basis of a retrieval expression. COPYRIGHT: (C)2011,JPO&INPIT

Retrieval system and storage medium

PROBLEM TO BE SOLVED: To provide a structured document management apparatus and a method thereof for properly compressing an index even if the index contains structure information of a structured document. SOLUTION: For each of words divided from text information, when the number of pieces of index information associated with schema identification information and identification information exceeds a threshold, an index analysis part 36 analyzes a distribution for each of a schema identification information group comprising the same number of pieces of schema identification information as the number of pieces of index information and an identification information group comprising the same number of pieces of identification information as the number of pieces of index information. When a result of the distribution analysis of the schema identification information group shows that more than a predetermined number of pieces of schema identification information match the schema identification information stored in a first rule storage part 55 storing the schema identification information, group identification information allowing identification of a group, to which the schema identification information belongs, and intra-group identification information allowing identification of the schema identification information inside the group in mutual association, a first compressing part 38 compresses the schema identification information group by using the group identification information and the intra-group identification information. COPYRIGHT: (C)2011,JPO&INPIT

Structured document management apparatus and method

String classification method and string retrieval method

PROBLEM TO BE SOLVED: To reduce communication traffic between devices on operation of a data group managed by a plurality of devices in a distributed mannerSOLUTION: A data processing program causes each of a plurality of data storage devices storing a data group in a distributed manner to perform processing to: store information indicating a storage destination data storage device of each of pieces of data constituting the data group in storage units of the data storage devices in a distributed manner; store information indicating that a storage destination is the data storage device in the storage unit regarding data about which information indicating the storage destination data storage device of the data is not stored in the storage unit of the data storage device among data stored in the data storage device; and identify a storage destination of second data made an operation object related to first data stored in the data storage device referring to the storage unit of the data storage device

Data processing program and data processing method

According to an embodiment, a structured document management device includes a parser; a constraint acquiring unit; and a parse tree rewriting unit The structured document receiving unit is configured to receive an input of a structured document having a layered logical structure The parser is configured to parse the syntax of received query data to acquire a parse tree in which the query data is decomposed so as to meet a static single assignment form which is defined such that each variable is assigned exactly once The constraint acquiring unit is configured to acquire a hierarchical condition that the variables of the parse tree need to meet and constraints that include conditions for values of the respective variables The parse tree rewriting unit is configured to rewrite the query data in such a form that the structured document is refinable by the constraints

Device and method for managing structured document, and computer program product

A structured document management device (1) equipped with: a retrieval interface unit (26) that receives a query input for a search in structured documents having a hierarchized logical structure; a structural condition dividing unit (27) that divides the query data into units of elements containing multiple structural conditions; a structural condition rewriting unit (28) which rewrites a structural condition resulting from the dividing into a rewritten query if that structural condition is of a type other than a descendant structural condition specifying a lower level of the structured document from a higher level, without affecting the elements before and after that structural condition, said rewritten query containing a descendant structural condition determined in advance for each type of structural condition and a joint operation process; and a query execution unit (29) that receives query data containing the structural conditions and the rewritten query, and outputs a retrieval result.

Structured document management device, method, and program

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