A Natural-Language Question Answering System

Summary:

This impressive technology responds to questions asked in a user's own language.

One technique compares grammatical components to match the question asked with questions in the database. Another technique analyzes questions based on grammatic and semantic rules.

Features include:

• Response to multiple word meanings
• Matching the asked question with questions in the database
• Consideration of remaining words in a question when one word is not found in the database
• Replacement of words not found in the database with words having minimum number of different characters
• Analysis of grammatical structure including interrogative pronoun, auxiliary verb, and noun-phrase
• Ignoring non-essential grammatical elements
• Utilizing appropriate tables and algorithms to respond to questions containing interrogative pronouns, non-auxiliary verbs, adjectives, and prepositions
• Voice recognition and synthesis input/output capability

Patent Number: 5,836,771 [View Patent PDF]
Date of Patent: Nov. 17, 1998

Patent Number: 5,884,302 [View Patent PDF]
Date of Patent: Mar. 16, 1999

Patent Number: 5,934,910 [View Patent PDF]
Date of Patent: August 10, 1999

IpLearn has assigned the above three patents to Mindfabric, Inc.