Enhanced Answers in DeepQA System According to User Preferences

摘要

A semantic search engine is enhanced to employ user preferences to customize answer output by, for a first user, extracting user preferences and sentiment levels associated with a first question; receiving candidate answer results of a semantic search of the first question; weighting the candidate answer results according to the sentiment levels for each of the user preferences; and producing the selected candidate answers to the first user. Optionally, user preferences and sentiment levels may be accumulated over different questions for the same user, or over different users for similar questions. And, supplemental information may be retrieved relative to a user preference in order to further tune the weighting per the preferences and sentiment levels.

主权项

1. A method for using user preferences to customize answer output comprising the steps of:
extracting, by a natural language processor, from a first question one or more user preferences for a first user and one or more sentiment levels for a first user; performing, by a computer, a first semantic search on of the first question; receiving, by a computer, a plurality of candidate answers from the first semantic search; selecting, by a computer, one or more of the received candidate answers according to the one or more sentiment levels, or according to the one or more user preferences, or both; and producing, by a computer, an output including the selected one or more candidate answers.