关键词: 口语理解, 三角链条件随机场, 关键语义概念识别, 意图识别, 执行策略

Abstract: The semantic frame based spoken language understanding involves two decisions—key semantic concept recognition and intent determination. This paper focuses on execution strategies of two decisions. Firstly, this paper studies independent and cascade strategies. Then, it proposes joint model, which is based on triangular-chain conditional random fields to build a joint model between key semantic concept recognition and intent determination to denote their dependence relationship. Experiments about these strategies show that the performance of joint model for key semantic concept recognition is better than other strategies.

Key words: spoken language understanding, triangular-chain conditional random field, key semantic concept recognition, intent determination, execution strategies