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Outlier detection is an interesting data mining task, which detects rare events. This paper focuses on the method of outlier detection based on frequent pattern (FP method for short). First we analyze the drawback of this method, and then an improved method (LFP method for short) has been presented. Finally, we evaluate the two methods by using several datasets and the experiment results show that...
The work concerns with an improving watermarking algorithm that embeds binary image data invisibly into an original image based on discrete wavelet transform (DWT). According to the HVS, the proposed algorithm embeds a watermark into the proper coefficients of sub-bands LH2, HL2 and LL2 of an image. In order to blindly extract the watermark, we insert the watermark by using quantized modulation strategy...
The Choquet integral has been applied in data mining, such as nonlinear multiregressions and nonlinear classifications. Adopting signed efficiency measures in the Choquet integral makes the models more powerful. Another idea for generalizing the above-mensioned models is to use a linear core in the Choquet integral. This has been successfully used in nonlinear multiregression. However, there is a...
The amount of information is exponentially increasing over the Internet where information sources are autonomic, heterogeneous and dynamic. Thus, effective selective dissemination of relevant information is very essential for users. Publish/subscribe systems are gaining increasing popularity due to its loose coupling and scalability. However, traditional content-based pub/sub systems are crisp and...
In the current paper, exponential synchronization is discussed for chaotic neural networks with time-varying delays. Based on Lyapunov stability theory and linear matrix inequality (LMI), a nonlinear feedback control scheme is designed to synchronize the drive system and the response one. The obtained sufficient conditions are in the forms of LMI, so much easier to verify. Moreover, numerical simulation...
The main goal of this article is to present a generalized conceptual model for the Chinese cadastre. For the Chinese cadastre, both the geometric and legal components will be considered. According to the cadastral situation of china and existent data structure, this paper modified the core cadastral domain model by an objected-oriented way. After that the refined Land package and geometry package...
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