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We address the problem of speech enhancement in real-world noisy scenarios. We propose to solve the problem in two stages, the first comprising a generalized spectral subtraction technique, followed by a sequence of perceptually-motivated post-processing algorithms. The role of the post-processing algorithms is to compensate for the effects of noise as well as to suppress any artifacts created by...
A typical software system comprises of several crosscutting concerns (also known as aspects). Code tangling and scattering are two difficulties that occur in current software implementation methodologies which affect software design and development in many ways like, poor traceability, lower productivity, less code reuse and poor code quality. Aspect Oriented Programming (AOP), which allows for modularizing...
Markov random fields with higher order potentials have emerged as a powerful model for several problems in computer vision. In order to facilitate their use, we propose a new representation for higher order potentials as upper and lower envelopes of linear functions. Our representation concisely models several commonly used higher order potentials, thereby providing a unified framework for minimizing...
Supervised learning of a parts-based model can be formulated as an optimization problem with a large (exponential in the number of parts) set of constraints. We show how this seemingly difficult problem can be solved by (i) reducing it to an equivalent convex problem with a small, polynomial number of constraints (taking advantage of the fact that the model is tree-structured and the potentials have...
In the above titled paper (ibid., vol. 21, no. 20, pp. 1490-1492, 15 Oct. 09), the first sentence of the Conclusion contained the following error: "a length of 15 nm" should read "a length of 15 mm."
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