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arXiv · 2109.12576

Recovery of Graph Signals from Sign Measurements

Wenwei Liu·Hui Feng·Kaixuan Wang·Feng Ji·Bo Hu
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Abstract

Sampling and interpolation have been extensively studied, in order to reconstruct or estimate the entire graph signal from the signal values on a subset of vertexes, of which most achievements are about continuous signals. While in a lot of signal processing tasks, signals are not fully observed, and only the signs of signals are available, for example a rating system may only provide several simple options. In this paper, the reconstruction of band-limited graph signals based on sign sampling is discussed and a greedy sampling strategy is proposed. The simulation experiments are presented, and the greedy sampling algorithm is compared with random sampling algorithm, which verify the validity of the proposed approach.

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Wenwei Liu, Hui Feng, Kaixuan Wang, Feng Ji, Bo Hu. 2021-09-26. Recovery of Graph Signals from Sign Measurements. https://arxiv.org/abs/2109.12576

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