The NWT model is the implemention of the paper "Semantic Matching by Non-Linear Word Transportation for Information Retrieval"

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In NWT, the query and document are represented as Bag-of-Word-Embeddings(BoWE), which provides a better foundation for semantic matching than BoW. Based on this representation, we introduce a novel retrieval model by viewing the matching between queries and documents as a non-linear word trans- portation (NWT) problem. With this formulation, we define the capacity and profit of a transportation model designed for the IR task. enter image description here


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