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Traditional retrieval models assume that the relevance of a document is independent of the relevance of other documents. However, this assumption may result in high redundancy and low diversity in a ranked list. In order to provide comprehensive and diverse answers to fulfill biologists' information need, we propose a relevance-novelty combined model, named RelNov model, based on the framework of...
Based on the network equilibrium modeling approach, a stochastic user equilibrium model with multiple classes and elastic demand is established in this paper. The equivalence and uniqueness of the equivalent variational inequality model is also proved. A correspondent algorithm is designed for the model with the searching technique of efficient routes and a numerical example is carried out by the...
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