We extend Latent Dirichlet Allocation (LDA) by introducing a topic model, Hierarchically Dual Latent Dirichlet Allocation (HDLDA), for contexts in which one type of documents (e.g., search queries) are semantically related to another type of documents (e.g., search results). In the context of...

Web 2.0 describes the trend in Web technology and design that aims to enhance creativity, information sharing, and, especially, collaboration among users. Semantic Web refers to the intelligent interaction among systems and applications on the Web by deploying ontologies, semantic annotation of...