An MCMC sampling of densest $k$-sub-graphs of regular graphs with connected complement graph
英文摘要：
We present an exclusion process based approach for sampling densest $k$-sub-graphs from regular graphs $L$ with connected complement. By interpreting an exclusion process as a Markov chain on a corresponding Token Graph $\mathfrak{L}_k$, we make use of classical Markov chain theory to obtain quantitative bounds on the convergence speed depending on the geometry of $L$, which are sharp in the sens that variations in the valency lead to an equality, which is $1$, for the geometric bounds in the case of a complete graph. We propose an algorithm which makes use of this particle view to avoid excessive memory use due to the state space size and discuss the regularity and connectivity condition on $L$ and $L^c$ in the Outlook.
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