Patent ID: 6947923

Claim:
An apparatus for generating and retrieving information based on standardized formats of sentence structure and semantic structure, the apparatus comprising: a data storing means for storing language knowledge data used to analyze a sentence for information supply and a query for information request from a user, semantic representation data for representing sense of sentence as a conceptual graph, and Web documents; an input means for receiving a natural language query sentence for generation of a natural language sentence for information supply and specification of information request from the user; an input sentence analyzing means for analyzing sentence structure of the natural language sentence or the natural language query sentence inputted from the user with reference to data stored at the data storing means to generate semantic relation; semantic structure processing means for partitioning the semantic structure analyzed by the input sentence analyzing means to index and store or for computing semantic relevance to search supply information and document most semantically relevant to the requested information specification; an interactive processing means for outputting sentence format rule for which failure data from the input sentence analyzing means is corrected depending on the standardized formats of sentence structure and semantic structure, and indexing and searching result; and an information transferring means for transferring the data from the interactive processing means to the user, wherein the semantic relevance (S(x,y)) is a distance from a node x to another node y in the thesaurus system and can be express as: S ⁢ ( x , y ) = 1 1 + d ⁢ ( x , y ) where d(x,y) is a distance between the nodes x and y in the thesaurus system, and d(x,y), i.e., the distance from the node x to the node y in the thesaurus system, is 0 if the node y is one of lower nodes and is computed as the number of edges between the nodes if otherwise.