arXiv Statistics ML

Tight Bounds for Equivalence Testing with Non-Adaptive Conditional Samples

The paper presents tight bounds for equivalence testing using non‑adaptive conditional samples. It shows that determining whether two unknown distributions are identical or ε‑far in total variation distance requires ∫Θ((log n)/ε²) queries. Consequently, the query complexity for uniformity, identity, and equivalence testing with non‑adaptive conditional samples is ∫Θ(log n).

arXiv Machine Learning
Jul 15

Entropy Equivalence Testing

arXiv:2605. 23225v2 Announce Type: replace-cross Abstract: We introduce the problem of \emph{entropy equivalence testing} for probability distributions, a relaxation of the well-studied closeness testing problem, where the distribution testing algorithm is now only required to distinguish, given samples from two unknown distributions $p,q$ and a parameter $\varepsilon \in(0,1/2]$, between $p=q$ and $|H(p)-H(q)| \geq \varepsilon$ (where $H$ denotes the Shannon entropy).

By Cl\'ement L. Canonne, Yash Pote, Jonathan Scarlett, Joy Qiping Yang
arXiv Machine Learning
Oct 22

Asymmetric Likelihood-Free Hypothesis Testing

arXiv:2610. 29798v1 Announce Type: new Abstract: In likelihood-free hypothesis testing (LFHT), given samples from two unknown distributions $P,Q$ on $[n]$ with $\mathrm{d_{TV}}(P,Q)\geq\varepsilon$, and from a third distribution $D\in\{P,Q\}$, the goal is to identify whether $D=P$ or $D=Q$.

By Gunjan Kumar, Yash Pote, Jonathan Scarlett
arXiv Machine Learning
Jul 20

Testing Distributions Against Bounded Distinguishers

arXiv:2607. 15645v1 Announce Type: cross Abstract: Motivated by the challenge of testing distributions over high-dimensional or continuous domains, we study distribution testing with respect to bounded classes of distinguishers.

By Mark Bun, Rathin Desai, Renato Ferreira Pinto Jr
arXiv AI
Jun 11

The Power of Test-Time Training for Approximate Sampling

arXiv:2606. 11437v1 Announce Type: cross Abstract: Efficiently sampling from a complex probability distribution is a fundamental problem which has become increasingly pertinent in recent years with the rise of generative AI, as sophisticated sampling procedures from LLMs have been proposed to solve challenging reasoning problems.

By Noah Golowich, Ankur Moitra, Dhruv Rohatgi
arXiv Machine Learning
Jun 18

How fast can you find a good hypothesis?

arXiv:2509. 03734v3 Announce Type: replace-cross Abstract: In the hypothesis selection problem, we are given sample and query access to finite set of candidate distributions (hypotheses), $\mathcal{H} = \{H_1, \ldots, H_n\}$, and samples from an unknown distribution $P$, both over a domain $\mathcal{X}$.

By Anders Aamand, Maryam Aliakbarpour, Justin Y. Chen, Sandeep Silwal