Type-specific rule-based generation of semantic variants of natural language expression Grant US-9928235-B2 United States of America 27 Mar 2018
Generating semantic variants of natural language expressions using type-specific templates Grant US-9910848-B2 United States of America 06 Mar 2018
User interface for supplementing an answer key of a question answering system using… Grant US-9767094-B1 United States of America 19 Sep 2017