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Many recent studies on fault localization based on program slicing have mainly focused on static slicing techniques, while the research on fault localization using dynamic slicing tool is insufficient. One reason is that dynamic slicing tools are less available than static ones. In our paper, we present the use of the dynamic slicing tool, JSlice, which is a dynamic slicing tool available for Java...
Collaborative filtering has been widely used in recom-mender systems as a method to recommend items to users. However, by using knowledge of the recommendation algorithm, shilling attackers can generate fake profiles to increase or decrease the popularity of a targeted set of items. In this paper, we present a method to make recommender systems resistant to these attacks in the case that the attack...
Tree search algorithm typically involves long latency for the main memory access due to irregular and unpredictable data access during the tree traversal. Data prefetching is one method to bridge the memory gap and improve cache performance. In this paper, we extend our previous work and propose a novel data prefetching approach for tree search, called Dynamic Block Prefetching. Dynamic block prefetching...
We propose a new multichannel image denoising algorithm. To exploit important inter-channel dependencies, we first use dynamic programming to learn an explicit dyadic tree representation of the common structure of the channels. Based on this dyadic tree, optimal Haar wavelet thresholding is then applied to denoise the image. In addition to the original channels, the algorithm can employ multiple derived...
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