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Android access control granularity based on its permission mechanism is relatively coarse, which cannot effectively protect the user privacy. Many Android applications do not strictly abide by the principle of least privilege (PLP). Both benign and malicious apps may request more permissions than those they really use. We rethink previous permission over-claim problem of Android applications, and...
Extracted product features from user comments is the basis of fine-grained sentiment analysis, it is of great significance for manufacturers and users. Faced with product feature extraction accuracy is not high, firstly, the paper use the method of conditional random field(CRF) to identify the nominal information; Then, through the map of product feature make display semantic merge for product features,...
Reader-mostly synchronization schemes, such as rwlocks and RCU, aim to maximize parallelism among readers, but many existing designs either cause readers to contend, or significantly extend writer latency, or both. This paper attributes such a problem to the lack of a fast consensus protocol between readers and writers, by which the two parts cooperate to obey the semantics of a synchronization construct...
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