Wen Shu Jiang

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In this paper, we present an adaptive calibration method for correcting channel mismatches in time-interleaved analog-to-digital converters (TIADCs). An equivalent signal recombination structure is proposed to eliminate aliasing components when the input signal bandwidth is greater than the Nyquist bandwidth of the sub-ADCs in a TIADC. A band-limited(More)
1 2 We exploit analogies between regression and classiication to study certain properties of boosting algorithms. A geometric concept called the angular span is deened and related to analogs of the VC dimension and the pseudo dimension of the regression and classiication systems, and to the assumption of the weak learner. The exponential convergence rates(More)
Previous studies have shown that motor recovery of stroke can be assessed by the cortical activity and the structural integrity of the corticospinal tract (CST), but little is known about the relation between the cortical activity and the structural integrity during motor recovery. In the present study, we investigated the changes in brain activities evoked(More)
Complex networks are widely used in modeling complex system. How to aggregate data in complex systems is still an open issue. In this paper, an ordered visibility graph average aggregation operator is proposed which is inspired by the complex network theory and Newton's law of universal gravitation. First of all, the argument values are ordered in(More)
This thesis carries out a detailed investigation of the action for pure YangMills theory which L. Mason formulated in twistor space. The rich structure of twistor space results in greater gauge freedom compared to the theory in ordinary space-time. One particular gauge choice, the CSW gauge, allows simplifications to be made at both the classical and(More)
How to quantify the uncertain information in the framework of Dempster-Shafer evidence theory is still an open issue. Quite a few uncertainty measures have been proposed in Dempster-Shafer framework, however, the existing studies mainly focus on the mass function itself, the available information represented by the scale of the frame of discernment (FOD) in(More)
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