2009 Fiscal Year Final Research Report
Study on Ambiguous Understanding Representation and Response Generation for Spoken Dialog Systems
| Project/Area Number |
19700164
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| Research Category |
Grant-in-Aid for Young Scientists (B)
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| Allocation Type | Single-year Grants |
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| Research Field |
Perception information processing/Intelligent robotics
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| Research Institution | Nagoya University |
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Principal Investigator |
KITAOKA Norihide Nagoya University, 大学院・情報科学研究科, 准教授 (10333501)
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| Project Period (FY) |
2007 – 2009
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| Keywords | 音声対話 / 誤認識 / 複数理解状態 / 効率性 / 無矛盾性 / グラフ探索 / ヒューリスティック探索 / ユーザ満足度 |
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| Research Abstract |
We proposed a new dialog strategy which can recover from system's misunderstandings without confirmation system utterances. In this strategy, system uses a graph search algorithm, in which each node represent an understanding state. To make a response to the user, system adopts 'efficiency measure' which enables the system efficient search and 'consistency measure' which prevents unnatural response inconsistent with the dialog history. We developed a system with these methods and evaluated it. It is proved that the system was more efficient and obtained more user satisfaction than conventional ones.
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