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This paper presents a fast-convergence and robust adaptive step size equalization approach for a 14-bit 200MS/s hybrid pipeline-SAR analog-to-digital converters (ADC). The proposed calibration approach corrects errors not only from capacitor mismatch, gain error, op amp nonlinearity, and comparator offset, but also the reference DAC error and inter-stage mismatch errors. It is robust and permits higher...
In this paper, a novel face representation in terms of dense local image descriptors is proposed. Scale Invariant Feature Transform (SIFT) and Gabor, two of the most popular local image descriptors, at dense grid pixels of a face image are used to represent the face. The efficiency of the representation has been investigated in gender recognition. There are four problems when applying the SIFT to...
In C2C e-commerce environment it is possible and indeed quite common to deal with unknown sellers, whose reliability are unknown. Reputation system is a popular technique currently used for providing a global quality score of sellers to consumers. However, such global information is far enough for clients to choose the most qualified products. In the real word, we always ask our trusted friends for...
The paper is about how to evaluate the intelligent knowledge. We think that the criteria is not only distinguishing ability and accuracy of the algorithm, but also algorithm robustness, stability and so on. Besides positive characters listed above, a fair evaluation system of intelligent knowledge should also include negative characters, such as storage space, running time, training and testing time...
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