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By using a data-driven communication pattern other than location-driven pattern, Named Data Networking (NDN) offers better support for content distribution applications such as video playback application. We propose NDNlive, which exploits the features of NDN to stream live and prerecorded video captured by the camera to multiple players. Instead of fixed-size segmentation, NDNlive chops video stream...
Over the last few years, MapReduce systems has become popular for processing large-scale data sets and are increasingly being used in web indexing, data mining, and machine learning. Unlike simple application scenarios such as word count, many applications of MapReduce exhibit strong skewed access patterns in real production environment, the data access is non-uniform, often only a small portion of...
Block-level continuous data protection (CDP) logs every disk write operation so that the disk can be rolled back to any arbitrary point-in-time within a time window. For each update operation is time stamped and logged, the indexing for such huge amounts of records is an important and challenging problem. Unfortunately, the conventional indexing methods can not efficiently record large numbers of...
The occurrence and distribution of polychlorinated dibenzo-p-dioxins (PCDDs), polychlorinated dibenzofurans (PCDFs) and polychlorinated biphenyls (PCBs) in a typical process of production of 1,4-dichlorobenzene (p-DCB) were investigated systematically in this study. P 5 CDFs and H 6 CDFs were the main congeners of PCDD/Fs, while only low levels of other PCDD/Fs were detected in the...
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