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Wen Li - IEEE Xplore Author Profile

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Bus arrival prediction has important implications for public travel, urban dispatch, and mitigation of traffic congestion. The factors affecting urban traffic conditions are complex and changeable. As the predicted distance increases, the difficulty of traffic prediction becomes more difficult. Forecast based on historical data responds quite slowly for changes under the short-term conditions, and...Show More
Density-based clustering (DBSCAN) is one of the most effective methods for trajectory data mining, but density-based clustering algorithms are often limited by the choice of input parameters. In the trajectory data mining, clustering results are not only affected by the within-class distance and between-class distance, but also by the number of coordinate points in the cluster. Therefore, this pap...Show More
Currently, most of the existing web cache replacement strategies are based on temporal locality, frequency distribution and size distribution while spatial locality gets less attention. This paper proposed a reference model to evaluate the spatial locality of web object accessing, and used the reference model as the basis of a new cache replacement strategy -- GDSR, Greedy-Dual-Size Reference. GDS...Show More
To find an optimized structure in a Bayesian network is a NP problem. How to get a network with a high score is an important question. In this paper, we discuss some theories about Bayesian network study and propose a hybrid genetic algorithm HGA-BN for Bayesian network optimization. The algorithm is based on genetic algorithm, uses simulated annealing technology to select its children, and uses s...Show More