PROBABILITY-BASED STATE MODIFICATION FOR QUERY DIALOGUES

摘要

A device may facilitate a query dialog involving queries that successively modify a query state. However, fulfilling such queries in the context of possible query domains, query intents, and contextual meanings of query terms may be difficult. Presented herein are techniques for modifying a query state in view of a query by utilizing a set of query state modifications, each representing a modification of the query state possibly intended by the user while formulating the query (e.g., adding, substituting, or removing query terms; changing the query domain or query intent; and navigating within a hierarchy of saved query states). Upon receiving a query, an embodiment may calculate the probability of the query connoting each query state modification (e.g., using a Bayesian classifier), and parsing the query according to a query state modification having a high probability (e.g., mapping respective query terms to query slots within the current query intent).

主权项

1. A method of updating a query state according to a query received from a user of a device having a processor, the method comprising:
executing on the processor instructions configured to:
parse the query to identify at least zero query terms;for respective query state modifications in a query state modification set, calculate a query state modification probability intended by the user for the query;using the query state modification probabilities, identify at least two candidate query state modifications;among the at least two candidate query state modifications, identify a selected query state modification; andmodify the query state according to the selected query state modification and the query terms.