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  • Mohammad Rostami, E M Farahani, Dariush Moradinezhad, Rostami, Farahani E M, Moradinezhad D
  • 2012
Robust optimization (RO) can be applied to location problems under uncertainty. In this paper, we present a robust optimization model for stochastic multi-objective operation of capacitated P-hub location problems (MCpHLP-s). Most existing approaches to p-hub location problems are restricted to deterministic environments. However, the volume of demand in(More)
The problem of reconstruction of digital images from their blurred and noisy measurements is unarguably one of the central problems in imaging sciences. Despite its ill-posed nature, this problem can often be solved in a unique and stable manner, provided appropriate assumptions on the nature of the images to be recovered. In this paper, however, a more(More)
Recently, sparse representation based methods have proven to be successful towards solving image restoration problems. The objective of these methods is to use sparsity prior of the underlying signal in terms of some dictionary and achieve optimal performance in terms of mean-squared error, a metric that has been widely criticized in the literature due to(More)
There has been an increasing number of image super-resolution (SR) algorithms proposed recently to create images with higher spatial resolution from low-resolution (LR) images. Nevertheless, how to evaluate the performance of such SR and interpolation algorithms remains an open problem. Subjective assessment methods are useful and reliable, but are(More)
—In this paper, the Two-Way Channel (TWC) with Cannel State Information (CSI) is investigated. First, an achievable rate region is derived for the discrete memoryless channel. Then by extending the result to the Gaussian TWC with additive interference noise, it is shown that the capacity region of the later channel is the same as the capacity when there is(More)
While many radio technologies are available for mobile devices, none of them are designed to deal with asymmetric available energy. Battery capacities of mobile devices vary by up to three orders of magnitude between laptops and wearables, and our inability to deal with such asymmetry has limited the lifetime of constrained portable devices. This paper(More)