Search Results for author: Shoaib Bin Masud

Found 4 papers, 2 papers with code

On Rank Energy Statistics via Optimal Transport: Continuity, Convergence, and Change Point Detection

no code implementations15 Feb 2023 Matthew Werenski, Shoaib Bin Masud, James M. Murphy, Shuchin Aeron

This paper considers the use of recently proposed optimal transport-based multivariate test statistics, namely rank energy and its variant the soft rank energy derived from entropically regularized optimal transport, for the unsupervised nonparametric change point detection (CPD) problem.

Change Point Detection

Robust and efficient change point detection using novel multivariate rank-energy GoF test

no code implementations29 Oct 2021 Shoaib Bin Masud

In this paper, we use and further develop upon a recently proposed multivariate, distribution-free Goodness-of-Fit (GoF) test based on the theory of Optimal Transport (OT) called the Rank Energy (RE) [1], for non-parametric and unsupervised Change Point Detection (CPD) in multivariate time series data.

Change Point Detection Time Series +1

Multivariate rank via entropic optimal transport: sample efficiency and generative modeling

1 code implementation29 Oct 2021 Shoaib Bin Masud, Matthew Werenski, James M. Murphy, Shuchin Aeron

We leverage this result to demonstrate fast convergence of sample sRE and sRMMD to their population version making them useful for high-dimensional GoF testing.

feature selection Image Generation +1

Soft and subspace robust multivariate rank tests based on entropy regularized optimal transport

1 code implementation16 Mar 2021 Shoaib Bin Masud, Boyang Lyu, Shuchin Aeron

In this paper, we extend the recently proposed multivariate rank energy distance, based on the theory of optimal transport, for statistical testing of distributional similarity, to soft rank energy distance.

Change Point Detection Time Series +1

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