Patent Document ID: 8301633
Application ID: 11906363

Base Claim:
1. A method for information search, comprising the steps of: generating one or more semantic index key terms each including at least one semantic index token representing a semantic relationship, comprising: selecting a word and at least one further word that is linguistically related to the word from one or more references to information passages; determining information regarding use of the word and the further word within at least one of the references comprising one or more of a part of speech and a grammatical role of the word or the further word; and concatenating each of the word and the further word with the respective information into a single string as the semantic index key terms; associating each of the semantic index key terms with the at least one reference; and generating an inverted index comprising the semantic index key terms indexed against the at least one reference to each associated information passage, wherein the steps are performed on a suitably programmed computer.

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Claim 2:
2. The method of claim 1 , further comprising: obtaining a search query; generating a semantic query key term including at least one semantic query token representing a semantic relationship derived from the search query; querying the inverted index with the semantic query key term; and receiving a set of references to information passages associated with the semantic query key term that corresponds to the semantic index key term indexed by the inverted index.