Improving context-aware query classification via adaptive self-training
Minmin Chen, Jian-Tao Sun, Xiaochuan Ni, Yixin Chen · 2011
Topical classification of user queries is critical for general-purpose web search systems. It is also a challenging task, due to the sparsity of query terms and the lack of labeled queries. On the other hand, search contexts embedded in query sessions and unlabeled queries free on the web have not been fully utilized in most query classification systems. In this work, we leverage these information to improve query classification accuracy.