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Electromagnetic transients simulation programs (EMTP-type programs) can run simulations in batch mode with different values of parameters. Still manual efforts are required to change values of many parameters. This paper proposes a method to automate the process of changing the values of such parameters and invoking the EMTP-type program externally. It reduces time and efforts involved in many complex...
An efficient method is proposed to identify a set of critical lines in power system network, outage of which can cause serious blackout in the system. To recognize such set of critical lines a two stage methodology is presented. In the first stage criticality measure of all lines is computed in a single run thus providing an overall view of the system. In second stage the information of criticality...
Contingency analysis is essential to operate power system in secure state. Normally Contingency analysis is performed offline since it is a time consuming task. Due to continuously changing nature of power system it is imperative to have a fast contingency analysis method. This work proposed a very efficient, fast and accurate method for online contingency screening using the hybrid Genetic Algorithm...
Presence of TCSC (Thyristor-Controlled Series Compensator) compensated transmission lines is increasing in modern power systems due to their benefits like increased power flow capacity but these benefits come at the cost of difficulty in protection of the transmission line. This paper presents a new method using SVM (Support Vector Machine) for fault classification in such line. This method is compared...
Motivated by an application in kidney exchange, we study the following query-commit problem: we are given the set of vertices of a non-bipartite graph G. The set of edges in this graph are not known ahead of time. We can query any pair of vertices to determine if they are adjacent. If the queried edge exists, we are committed to match the two endpoints. Our objective is to maximize the size of the...
A novel view-based subspace termed as hybrid-eigenspace is introduced and used to synthesize multiple virtual views of a person under different pose and illumination from a single 2D image. The synthesized virtual views are used as training samples in some subspace classifiers (LDA (Belhumeur et al., 1997) [4], 2D LDA (Kong et al., 2005) [22], 2D CLAFIC (Cevikalp et al., 2009) [23], 2D CLAFIC-μ (Cevikalp...
We present a robust algorithm for estimating visibility from a given viewpoint for a point set containing concavities, non-uniformly spaced samples, and possibly corrupted with noise. Instead of performing an explicit surface reconstruction for the points set, visibility is computed based on a construction involving convex hull in a dual space, an idea inspired by the work of Katz et al. [26]. We...
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