System and method for finding similar documents based on semantic factual similarity

A method, comprising:

• receiving a reference text string via a user interface of a user computing device;
• extracting a plurality of reference triples from the reference text string;
• expanding each of the plurality of reference triples based at least in part on candidate multi-word combinations of a domain-specific semantic corpus to obtain a plurality of expanded reference triples, wherein each of the plurality of reference triples is expanded based at least in part on a normalization of one or more tokens of the associated reference triple to a base form prior to further expansion of the associated reference triple based at least in part on the domain-specific semantic corpus;
• accessing an index based upon each of the plurality of expanded reference triples, wherein the index includes a plurality of library document triples associated with each of a plurality library documents;
• identifying, based upon the access of the index, a plurality of library document triples and associated library documents similar to each of the plurality of expanded reference triples;
• and
• scoring the plurality of library documents and generating a scored list of the plurality of library documents based at least in part upon similarity scores between the plurality of expanded reference triples and the library document triples;
• and
• displaying the generated scored list of library documents to the user.

A computer program product, stored on a non-transitory computer readable medium, comprising instructions that when executed by one or more processors cause the one or more processors to:

• receive a reference text string via a user interface of a user computing device;
• extract a plurality of reference triples from the reference text string;
• expand each of the plurality of reference triples based at least in part on candidate multi-word combinations of a domain-specific semantic corpus to obtain a plurality of expanded reference triples, wherein each of the plurality of reference triples is expanded based at least in part on a normalization of one or more tokens of the associated reference triple to a base form prior to further expansion of the associated reference triple based at least in part on the domain-specific semantic corpus;
• assess an index based upon each of the plurality of expanded reference triples, wherein the index includes a plurality of library document triples associated with each of the plurality of library documents;
• identify, based upon the access of the index, a plurality of library document triples and associated library documents similar to each of the plurality of expanded reference triples;
• and
• score the plurality of library documents and generating a scored list of the plurality of library documents based at least in part upon similarity scores between the plurality of expanded reference triples and the library document triples;
• and
• display the generated scored list of library documents to the user via the user interface.