应用HMM识别在线协作交互模式

Recognition of Interaction Pattern in Web-based Collaborative Learning

协作学习的本质是协同建构知识的过程，实现该过程主要有三类交互模式：分享信息、协商冲突和共同创造。基于隐马尔可夫模型，以实时交互言论的行为类型为观察序列，以小组讨论状态为状态集合，该论文尝试了上述三类协作交互模式的识别研究。

The essence of collaborative learning is collaborative knowledge building， which mainly has three interaction patterns: information sharing， conflicts negotiation and joint creation. Based on Hidden Markov Model (HMM)， taking the speech acts of online discussion as observation sequences and the discussion states as state set，this paper tried to recognize the three interaction patterns mentioned above.