| 摘要 |
A high-speed information collection utilizing a meta-information management unit which manages update information pertaining to documents which are retrieved by web robots. An information presentation apparatus, an information collection apparatus including a web robot, and a client are connected via a network. The information presentation apparatus presents document information stored in a document storage unit to an information collection apparatus. The information presentation apparatus has a meta-information management unit, which generates update information pertaining to individual documents, and a meta-information table which records the update information. When the web robot makes a collection request to the information presentation apparatus, the meta-information management unit references the meta-information table and generates a list of updated documents from all of the stored documents and/or collection targets, and presents the list to the web which subsequently retrieves only the updated documents.
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