Linear quantization by effective-resistance sampling
2018 IEEE INTERNATIONAL CONFERENCE ON ACOUSTICS, SPEECH AND SIGNAL PROCESSING (ICASSP)(2018)
摘要
In this paper we consider the problem of allocation of measurement bits in order to reduce the statistical signal recovery error resulting from quantization error. We propose a continuous optimization problem that serves as a relaxation of the original combinatorial problem, which is amenable to classical continuous optimization solvers such as the gradient descent. We also design a "rounding" algorithm based on the idea of effective resistance sampling to turn the continuous fractional solution into a feasible bit allocation strategy with integer number of bits allocated to each design point.
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关键词
Quantization,linear models,spectral sparsification,effective-resistance sampling
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