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Vehicular Delay Tolerant Network (VDTN) has emerged as a special type of network that is distinguished by the non-existence of end-to-end path between source nodes and destination nodes. Routing is one of the crucial issues in VDTN. To route a message, it must be scheduled from the outgoing buffer of a node. This is also an important issue considering the fact that the routing algorithm routes this...
We give efficient algorithms for volume sampling, i.e., for picking k-subsets of the rows of any given matrix with probabilities proportional to the squared volumes of the simplices defined by them and the origin (or the squared volumes of the parallelepipeds defined by these subsets of rows). This solves an open problem from the monograph on spectral algorithms by Kannan and Vempala (see Section...
Power is becoming a precious resource in modern VLSI design, even more so than area. With large number of applications requiring support of functional units like squares, cubes and other higher order units, it becomes imperative that such functions be implemented in hardware. Implementing those functions using existing general-purpose multipliers in a design may be economical in terms of area but...
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