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• W2337233909 abstract "Search result diversification has attracted considerable attention as a means to tackle the ambiguous or multi-faceted information needs of users. One of the key problems in search result diversification is novelty, that is, how to measure the novelty of a candidate document with respect to other documents. In the heuristic approaches, the predefined document similarity functions are directly utilized for defining the novelty. In the learning approaches, the novelty is characterized based on a set of handcrafted features. Both the similarity functions and the features are difficult to manually design in real world due to the complexity of modeling the document novelty. In this paper, we propose to model the novelty of a document with a neural tensor network. Instead of manually defining the similarity functions or features, the new method automatically learns a nonlinear novelty function based on the preliminary representation of the candidate document and other documents. New diverse learning to rank models can be derived under the relational learning to rank framework. To determine the model parameters, loss functions are constructed and optimized with stochastic gradient descent. Extensive experiments on three public TREC datasets show that the new derived algorithms can significantly outperform the baselines, including the state-of-the-art relational learning to rank models." @default.
• W2337233909 created "2016-06-24" @default.
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• W2337233909 date "2016-07-07" @default.
• W2337233909 modified "2023-10-16" @default.
• W2337233909 title "Modeling Document Novelty with Neural Tensor Network for Search Result Diversification" @default.
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• W2337233909 doi "https://doi.org/10.1145/2911451.2911498" @default.
• W2337233909 hasPublicationYear "2016" @default.
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