Yueping Li

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—The hierarchical clustering methods based on vertex similarity have the advantage that global evaluation can be incorporated for community discovery. Vertex similarity metric is the most important part of these methods. However, the existing methods do not perform well for community discovery compared with the state-of-the-art algorithms. In this paper, we(More)
Keywords: Degree sum Connectivity Perfect matching M-alternating path M-alternating cycle k-extendable a b s t r a c t We study M-alternating Hamilton paths, and M-alternating Hamilton cycles in a simple connected graph G on ν vertices with a perfect matching M. Let G be a bipartite graph, we prove that if for any two vertices x and y in different parts of(More)
PURPOSE The aim of this study was to measure the elasticity of normal placentas using the Virtual Touch quantification (VTQ) technique. METHODS This study was approved by the Institutional Ethics Committee. Fifty randomly selected, healthy pregnant women in their second trimester and 50 randomly selected, healthy pregnant women in their third trimester(More)
BACKGROUND To compare the clinicopathologic characteristics and survival of Chinese and Caucasian esophageal cancer (EC) patients residing in the US, using a population-based national registry (Surveillance Epidemiology and End Results [SEER]) database. METHODS Patients with EC were identified from the SEER program from 1988 to 2012. Kaplan-Meier survival(More)