Papers › Nonparametric Density Estimation from Markov Chains

Nonparametric Density Estimation from Markov Chains

8 Sep 2020arXiv:2009.03937archive 2025-07-28

Andrea De Simone, Alessandro Morandini

We introduce a new nonparametric density estimator inspired by Markov Chains, and generalizing the well-known Kernel Density Estimator (KDE). Our estimator presents several benefits with respect to the usual ones and can be used straightforwardly as a foundation in all density-based algorithms. We prove the consistency of our estimator and we find it typically outperforms KDE in situations of large sample size and high dimensionality. We also employ our density estimator to build a local outlier detector, showing very promising results when applied to some realistic datasets.

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Density Estimation

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