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Accurate demand forecasting could reduce the uncertainty of inventory and provide theoretical basis for strategic decisions. Without the accurate prediction of actual market demand, there will be a supply shortage or surplus, which influences the enterprise's inventory level and costs of operation. Product substitution is an important factor which affects the precision of demand forecasting. It could...
Search engine is a common tool to retrieve the information in the Web. But the current status of returned results is still far from satisfaction. Users have to be confronted with searching for a long result list to get the information really wanted. Many works focused on the post processing search results to facilitate users to examine the results. One of the common ways of post processing search...
Web application testing based on user session reduces artificial efforts while designing and generating test cases. It attracts more and more researchers and forms a hot spot of web application testing. Reduction, prioritization, and selection of test cases are widely used for the testing based on user session. In this paper, web application test cases optimization based on clustering is researched,...
The paper focuses on some key problems in Web communities' discovery. Based on topic-oriented communities discovery, we analyze some insufficiencies of CBG (complete bipartite graph) in trawling method. The conception of x-core-set is introduced, instead of CBG, it is more reasonable as a signature of core of community. We construct a bipartite graph from a node x and then (i, j)pruning the graph...
Neural network ensemble is a recently developed technology, which trains a few of neural networks and then combines their prediction results. The generalization ability of an ensemble can be much better than that of a single learner. However, it is time-consuming to train so many neural networks. In order to overcome this disadvantage, MPI (Message Passing Interface) technique was employed to the...
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