Tagging support apparatus and method

A tagging support method comprising:

• acquiring a spoken sentence concerning an utterance of a user;
• estimating an utterance intention of the spoken sentence to obtain one or more intention candidates of the utterance intention;
• storing an intention system having a hierarchical structure of intentions used in a dialogue system;
• acquiring, based on the intention candidates, part of the intention system as one or more hierarchical intention candidates;
• converting a hierarchical structure of the hierarchical intention candidates such that an intention whose number of appearances as a subordinate concept is not less than a threshold changes to a superordinate concept;
• and
• presenting the hierarchical intention candidates whose hierarchical structure is converted.

A non-transitory computer readable storage medium storing instructions of a computer program which when executed by a computer results in performance of steps comprising:

• acquiring a spoken sentence concerning an utterance of a user;
• estimating an utterance intention of the spoken sentence to obtain one or more intention candidates of the utterance intention;
• storing an intention system having a hierarchical structure of intentions used in a dialogue system;
• acquiring, based on the intention candidates, part of the intention system as one or more hierarchical intention candidates;
• converting a hierarchical structure of the hierarchical intention candidates such that an intention whose number of appearances as a subordinate concept is not less than a threshold changes to a superordinate concept;
• and
• presenting the hierarchical intention candidates whose hierarchical structure is converted.