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Information processing apparatus, information processing system, information processing method, and computer readable storage medium

  • US 7,925,609 B2
  • Filed: 11/14/2007
  • Issued: 04/12/2011
  • Est. Priority Date: 01/25/2007
  • Status: Expired due to Fees
First Claim
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1. A second information processing apparatus comprising:

  • a receiving unit that receives from a first information processing apparatus a derivational relationship information item designating a document prior to an operation as a parent and a document after the operation as a child, and document attribute of the document after the operation;

    a derivational relationship storage unit that stores the derivational relationship information item that is received;

    a document attribute storage unit that stores the document attribute that is received;

    an inference unit that, based on a comparison between document attribute of a document which is a root of a tree structure of derivational relationships of documents represented by derivational relationship information items stored in the derivation storage unit and document attribute of a document included in the derivational relationship information items, infers a document that can be a parent document of the document which is the root of the tree structure, the compared document attributes being obtained from the document attribute storage unit; and

    a pseudo derivational relationship storage unit that stores, as a pseudo derivational relationship information item, derivational relationship information designating the document which is the root of the tree structure as a child and a document inferred by the inference unit to be a parent document of the root document as a parent, and that stores the pseudo derivational relationship information item distinctly from the derivational relationship items stored in the derivational relationship storage unit.

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