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Misclassification of bug reports inevitably sacrifices the performance of bug prediction models. Manual examinations can help reduce the noise but bring a heavy burden for developers instead. In this paper, we propose a hybrid approach by combining both text mining and data mining techniques of bug report data to automate the prediction process. The first stage leverages text mining techniques to...
IEEE1588 standard Precision Time Protocol (PTP) is proposed to solve the high precision time synchronization problems in the application field. This technique will be ported to LINUX + inhibits PTP program POWERPC platform, makes it with the support of hardware timestamp of 100 ns level timing accuracy. We tested and analyzed software and hardware timestamp that affects the performance of GPS clock...
Component-level application migration is a light-weight solution to provide continuous services in mobile and pervasive environments. Current practices mainly leverage UML-like notations to model the architecture and the deployment configurations. Despite their popularity, the lack of rigorous semantics hampers the following validation process. In this paper, we present a graph transformation based...
In the replacing market, diffusion of information product is influenced by users' interaction and cooperating function between the complementary software and hardware. Therefore, this paper creates the direct network effect function which is based on the interpersonal relationship, and the indirect network effect function which is composed by the utility of the software and hardware. Based on the...
By summarizing the defects and limitation of web2.0, this thesis analyses the characteristics of web3.0, making clear the improvement and superiority upon web2.0. What??s most important, inspiring from the special structure of honeycomb in biology, we bring forward a brand new theory-The Honeycomb Theory, which reveals the essence of web3.0.At last, we set up three models about stability, attachment...
With the development of information industry, information service becomes more and more important in the information industry chain. This paper studies information service quality evaluation by empirical way, and then constructs the evaluation factors system that is fit for the traits of information service. Principal component analysis has been used in this paper.
Source code coupling and change history are two important data sources for change coupling analysis. The popularity of public open source projects in recent years makes both sources available. Based on our previous research, in this paper, we inspect different dimensions of software changes including change significance or source code dependency levels, extract a set of features from the two sources...
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