Abstract:Traditional bag-of-word Information Retrieval (IR) has led to quasi-standard models (e.g. TF-IDF, BM25) that are applied in the context of recommendation. While the benefits of semantic-aware models are clear, there is no standard semantic IR model, and this prevents the usage of semantic retrieval for tasks such as recommendation. We propose a ranking framework by quantifying parameters of the Dirichlet Compound Model (DCM) and using query performance prediction to aggregate scores of semantic extensions of D… Show more
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