Abstract: A system includes a vocabulary information processing mechanism for loading an ontology corresponding to a selected service and analyzing the loaded ontology to extract a conceptual structure, an inference processing mechanism for executing an inference operation based on an axiom rule and extending/parsing vocabulary information extracted by the vocabulary information processing mechanism, a conceptual information display section for displaying the extracted conceptual structure on a browser of a user terminal via the Internet, a property information display section for displaying on the browser property information relative to a concept selected from the displayed conceptual structure, a relational information display section for displaying, when a plurality of concepts are selected, relationships between the concepts on the browser, and a search request transmitting section 34 for transmitting a prescribed search request to a search system based on a search request made from the browser.

Abstract: A system includes a vocabulary information processing mechanism for loading an ontology corresponding to a selected service and analyzing the loaded ontology to extract a conceptual structure, an inference processing mechanism for executing an inference operation based on an axiom rule and extending/parsing vocabulary information extracted by the vocabulary information processing mechanism, a conceptual information display section for displaying the extracted conceptual structure on a browser of a user terminal via the Internet, a property information display section for displaying on the browser property information relative to a concept selected from the displayed conceptual structure, a relational information display section for displaying, when a plurality of concepts are selected, relationships between the concepts on the browser, and a search request transmitting section 34 for transmitting a prescribed search request to a search system based on a search request made from the browser.

Abstract: A user registers interests in order to obtain data relative to those interests. A plurality of web sites are searched based on the user's interests. An extraction rule mechanism is applied to HTML documents acquired. A vocabulary information processing mechanism reads an ontology based on information received to obtain vocabulary information. An inference processing mechanism executes an inference operation based on axiom rules. An extracting position information identifying section extracts data objects relying on HTML document tags with respect to the acquired HTML documents, based on the extraction rules, the vocabulary information processing mechanism, and the inference processing mechanism.

Abstract: A specific word is selected from an explanatory note of a link file in an HTML document and displayed with emphasis in the display of the HTML document. When a voice input of the word of emphasized display is detected, a link file corresponding to that word is connected.