Although many studies have been conducted to improve the clustering efficiency, most of the state-of-art schemes suffer from the lack of robustness and stability. This paper is aimed at proposing an efficient approach to elicit prior knowledge in terms of must-link and cannot-link from the estimated distribution of raw data in order to convert a blind clustering problem into a semi-supervised o...

This paper proposes a novel nonparametric clustering algorithm capable of identifying shape-free clusters. This algorithm is based on a nonparametric estimation of the normalized density derivative (NDD) and the local convexity of the density distribution function, both of which are represented in a very concise form in terms of neighbor numbers. We use NDD to measure the dissimilarity between ...

On 26 January, the San Francisco Section partnered with Advanced Systems Groups (ASG) and Sports Video Group (SVG) to create inaugural Silicon Valley Summit. The summit brought together members of Valley, engineers from world film television, for a day presentations, roundtables, even private event students seeking join industry.

The generation of valley current is a fundamental goal in graphene valleytronics but no practical ways of its realization are known yet. We propose a workable scheme for the generation of bulk valley current in a graphene mechanical resonator through adiabatic cyclic deformations of the strains and a chemical potential in the suspended region. The accompanied strain gauge fields can break the s...

A low volume formulation of propoxur wettable powder suspended in larvicidal oil was evaluated on 4 occasions in Kern Co., California during 1983 using fixed and rotary wing aerial application systems. Culex tarsalis abundance was suppressed significantly by all sprays, although reduction below the virus maintenance threshold of 30 females per trap night was achieved only at one foothill site. ...

Van der Waals heterostructures formed by two different monolayer semiconductors have emerged as a promising platform for new optoelectronic and spin/valleytronic applications. In addition to its atomically thin nature, a two-dimensional semiconductor heterostructure is distinct from its three-dimensional counterparts due to the unique coupled spin-valley physics of its constituent monolayers. H...

An ASIC implementation of capacitive fingerprint sensor is described for user authentication on small, thin, and portable equipment. New charge sharing sensing circuit minimizes the influence of internal parasitic capacitances and enlarges the voltage difference between a ridge and valley. A voltage comparator can easily discriminate a ridge and valley. Our method results in about 180% improvem...

The problem of clustering multivariate observations is viewed as the replacement of a set of vectors with a set of labels and representative vectors. A general c r i ter ion for clustering is derived as a measure of representation error. Some special cases are derived by simplifying the general c r i te r ion . A general algorithm for f inding the optimum classi f icat ion with respect to a giv...