Shiyuan Yang

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Particle swarm optimization (PSO) has shown to be an efficient, robust and simple optimization algorithm, and has been successfully applied to many different kinds of problems. But it is still an open problem that why PSO can be successful. Most of current PSO studies are empirical, with only a few theoretical analyses, and these theoretical studies(More)
In this paper, we present a Gaussian mixture model (GMM) based method for image denoising. The method partitions an image into a set of overlapping patches, and assumes that the image patches are random variables described by a GMM. The distribution parameters of the noise free image patches are estimated from the noisy parameters which are calculated by(More)
CONTEXT Steroidogenic factor (SF)-1 and its downstream target genes involved in estrogen signaling are aberrantly expressed in ovarian endometriosis. OBJECTIVE Our objective was to explore the microRNA-mediated mechanism controlling aberrant SF-1 expression in ovarian endometriosis. DESIGN Bioinformatics analysis predicted that microRNA23a and(More)
STUDY QUESTION Do microRNAs (miRNAs) contribute to aberrant progesterone receptor (PGR) expression in the eutopic endometrium of women with endometriosis? SUMMARY ANSWER: miR-196a upregulates MEK/ERK signalling, mediating a downregulation of PGR expression in the eutopic endometrium of women with minimal or mild endometriosis. WHAT IS KNOWN ALREADY(More)
A memory eficient test pattern generator for path delay faults, DTPG, is presented in this paper, which uses the eficient path identcJier to represent a path. A compact bit table, path information table, is proposed to store test information eficiently. Furthermore, DTPG is capable of identihing functional sensitizable paths, which account for large percent(More)
Recent advances in nanophotonic fabrication have made the optical network-on-chip an attractive interconnect option for next-generation multi-/many-core systems, providing high bandwidth and power efficiency. Both postfabrication and runtime calibration of the optical components (ring resonators) are essential to building a robust optical communication(More)