نتایج جستجو برای: two step clustering
تعداد نتایج: 2688892 فیلتر نتایج به سال:
A key aspect in extracting quantitative information from FMI logs is to segment the FMI image to get image of layers. In this paper, an automatic method based on FCM clustering and Otsu thresholding is introduced in order to extract quantitative information from FMI images. All pixels are clustered using FCM clustering algorithm at the f irst step. The second step uses KNN for other clustering....
Clustering techniques have been widely used in automatic videosummarization applications to group shots with comparable content. We enhance the popular k-means clustering algorithm to integrate user-supplied domain-knowledge into the cluster generation step. This provides a convenient way to exclude scenes from the summary which are a-priori known to be irrelevant. Furthermore, we added an addi...
Recently, multi-view clustering has received much attention in the fields of machine learning and pattern recognition. Spectral for single multiple views been common solution. Despite its good performance, it a major limitation: requires an extra step clustering. This step, which could be famous k-means clustering, depends heavily on initialization, may affect quality result. To overcome this p...
influence of media messages History and Orientation The two-step flow of communication hypothesis was first introduced by Paul Lazarsfeld, Bernard Berelson, and Hazel Gaudet in The People's Choice, a 1944 study focused on the process of decision-making during a Presidential election campaign. These researchers expected to find empirical support for the direct influence of media messages on voti...
Satoru Inoue, Grigory Ovanesyan, and Michael J. Ramsey-Musolf Physics Department, University of Massachusetts Amherst, Amherst, Massachusetts 01003, USA Department of Physics and Astronomy, University of South Carolina, Columbia, South Carolina 29208, USA Kellogg Radiation Laboratory, California Institute of Technology, Pasadena, California 91125, USA (Received 15 September 2015; published 22 J...
uPAR's signaling two step T he uPA receptor (uPAR) is a loner. Jutting from the plasma membrane , it has no apparent connection to the cell interior. But, as Madsen et al. demonstrate on page 927, uPAR induces cells to cling tightly to a surface. The behavior might recruit other receptors and explain how the seemingly isolated uPAR exerts its infl uence. Stimulating uPAR galvanizes cells—they a...
In recent years, several new methods for the identiica-tion of approximate models of an open loop plant on the basis of closed loop data have been presented. In this paper, we extend such a method to the nonlinear case: we consider that both the plant and the controller can be nonlinear. The method that is considered is a two-step procedure, i.e. the sensitivity function of the closed loop syst...
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