Speech segregation is an important task of auditory scene analysis (ASA), in which the speech of a certain speaker is separated from other interfering signals. Wang and Brown proposed a multistage neural model for speech segregation, the core of which is a two-layer oscillator network. In this paper, we extend their model by adding further processes based on psychoacoustic evidence to improve t...

since the pioneering work of zadeh, fuzzy set theory has been applied to amyriad of areas. song and chissom introduced the concept of fuzzy time series andapplied some methods to the enrolments of the university of alabama. thereafter weapply fuzzy techniques for system identification and apply statistical techniques tomodelling system. an automatic methodology framework that combines fuzzytech...

An Integrated Decision Model for Critical Component Spare Parts Ordering and Condition-based Replacement with Prognostic Information Wenbin Wang , Zhaoqiang Wang , Changhua Hu *, Xuejuan Liu a Dongling School of Economics and Management, University of Science and Technology Beijing 100083, P.R. China Department of Automation, Xi'an Institute of High-Tech, Xi'an, Shaanxi 710025, P. R. China hch3...

A new cluster algorithm based on invasion percolation is described. The algorithm samples the critical point of a spin system without a priori knowledge of the critical temperature and provides an efficient way to determine the critical temperature and other observables in the critical region. The method is illustrated for the twoand three-dimensional Ising models. The algorithm equilibrates sp...

The (discrete) Gross-Neveu model is studied in a lattice realization with an N-component Majorana Wilson fermion field. It has an internal O(N) symmetry in addition to the euclidean lattice symmetries. The discrete chiral symmetry for vanishing mass is expected to emerge in the continuum limit only. The lattice theory is first recast in terms of two-valued bosonic link variables (dimers). In th...

We study the performance of a Wolff-type embedding algorithm for RP σ-models. We find that the algorithm in which we update the embedded Ising model à la Swendsen-Wang has critical slowing-down as zχ ≈ 1. If instead we update the Ising spins with a perfect algorithm which at every iteration produces a new independent configuration, we obtain zχ ≈ 0. This shows that the Ising embedding encodes w...

This article presents a large-scale, systematic study of politically connected firms in China. It was conducted by compiling a database of all the publicly traded firms in China in 1993, 2002 and 2012 that codes the biographies of hundreds of thousands of board members. I find that there has been a significant increase in the percentage of firms that are connected with the national government i...