Learn More
A new approach to robust control analysis and design for uncertain discrete-time singular systems is proposed. Under the allowable structured perturbations, the stability robustness, regularity preservation, and impulse elimination are simultaneously guaranteed by the proposed method. Abstract-In this paper, we propose a simple approach to analyse stability(More)
As XML prevails over the Internet, the efficient retrieval of XML data becomes important. Research to improve query response times has been largely concentrated on indexing XML documents and processing regular path expressions. Another approach is to discover frequent query patterns since the answers to these queries can be stored and indexed. Mining(More)
— In an effort to reduce the degradation in speech recognition performance caused by variation in vocal tract shape among speakers, a frequency warping approach to speaker nor-malization is investigated. A set of low complexity, maximum likelihood based frequency warping procedures have been applied to speaker normalization for a telephone based connected(More)
The disabling disorder known as chronic fatigue syndrome or myalgic encephalomyelitis (CFS/ME) has been linked in two independent studies to infection with xenotropic murine leukemia virus-related virus (XMRV) and polytropic murine leukemia virus (pMLV). Although the associations were not confirmed in subsequent studies by other investigators, patients(More)
Abst ract We consider uncertain linear systems where the uncertainties, in addition to being bounded, also satisfy constraints on their phase. In this context, we deene the \phase-sensitive structured singular value" (PS-SSV) of a matrix, and show that suucient (and sometimes necessary) conditions for stability of such uncertain linear systems can be(More)