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20 results for “Martingale-based methods”

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cs.PLTheoreticalRecentJul 20, 2026

Weakly Non-Negative Supermartingales for Omega-Regular Verification

Toru Takisaka, Hongjie Qing, Libo Zhang

The paper introduces lazy Streett supermartingales and their lexicographic extension to certify almost-sure satisfaction of omega-regular properties with polynomial templates under a broad class of sa…

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stat.MLcs.AIcs.LGRecentMay 28, 2026

Improved Distribution Estimation in $\ell_\infty$

Doron Cohen, Aryeh Kontorovich, Yonatan Livshitz

This paper improves the theoretical bounds for estimating discrete probability distributions using the $\ell_\infty$ norm, resolving several open questions in the field.

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cs.DSmath-phmath.CATheoreticalRecentJun 22, 2026

Computing Gaussian and exponential integrals in ${\Bbb R}^n$

Alexander Barvinok

This paper proves conditions for efficiently approximating expectations of certain functions with respect to standard Gaussian or symmetric exponential probability measures.

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stat.MLcs.LGq-fin.PMTheoreticalRecentJun 25, 2026

The Decision Geometry of Covariance Estimation for the Global Minimum-Variance Portfolio under Heavy Tails

Xavier Fonseca

This paper characterizes how estimation error in covariance matrices affects the global minimum-variance portfolio and derives a decision geometry for regret.

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cs.DSmath.PRTheoreticalRecentJul 24, 2026

HyperLogLog for probabilists

Lucas Gerin

This paper provides non-asymptotic and explicit estimates for the exponential deviation inequalities of the HyperLogLog estimator.

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math.PRstat.MEstat.MLTheoreticalRecentJul 23, 2026

Self-Balancing Sequential Sampling: Fast Convergence with Controlled Predictability

Zachary McNulty, Daniel Raban

This paper presents a self-balancing sampler for sequential sampling that achieves faster convergence to a desired target law while maintaining unpredictability.

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q-fin.RMstat.MLTheoreticalRecentJul 12, 2026

An Extreme Value Perspective on Learning Stress Laws

Mantu Gupta, Anand Deo

Introduces Self-Similar Generative Estimation (SS-GEN), a method for simulating multivariate tail events and estimating rare-event probabilities using deep generative models based on asymptotic tail s…

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cs.AImath.OCRecentJun 1, 2026

Stochastic convergence of parallel asynchronous adaptive first-order methods

Serge Gratton, Philippe L. Toint

The paper analyzes a new class of asynchronous adaptive first-order optimization methods and proves their stochastic convergence rate is O(1/sqrt{t}) for non-convex functions.

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math.OCcs.AIcs.LGRecentJun 1, 2026

MINTS: Minimalist Thompson Sampling

Kaizheng Wang

The paper introduces MINTS, a minimalist Bayesian framework that simplifies sequential decision-making by placing priors only on the optimum location, allowing for the incorporation of structural cons…

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cs.GTcs.DSTheoreticalRecentJul 9, 2026

Algorithmic Expert Aggregation

Wei Tang, Hanrui Zhang

This paper studies the problem of aggregating calibrated Bayesian experts into a new calibrated expert.

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cs.MAmath.DSTheoreticalRecentJul 8, 2026

Stability and Convergence of Optimistic Exponential Weights with Asymmetric Step Sizes in Bimatrix Games

Hédi Hadiji, Sarah Sachs

This paper investigates the convergence and stability of equilibria in bimatrix two-player games using the optimistic exponential weights method, allowing step sizes to differ.

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math.STstat.MEstat.MLRecentJun 4, 2026

Optimally taming biases in black-box models for efficient semiparametric estimation

Yihong Gu, Qishuo Yin, Tianxi Cai, Jianqing Fan

The paper proposes a new, optimal estimator for semiparametric inference that improves upon standard double machine learning (DML) rates by eliminating the first-order stochastic error of nuisance fun…

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econ.EMcs.LGstat.MLTheoreticalRecentJul 21, 2026

Optimizing Regret

Irene Aldridge

This paper derives the complete theory of covariance regret functional for decision making, providing insights on steepest-descent directions and boundary-optimal solutions.

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cs.CERecentMay 29, 2026

When Certainty Is Not Worth It: Capital Lock-Up and Settlement Discounting in Prediction Markets

Jonas Gebele, Florian Matthes

This paper shows that the pricing of outcomes in prediction markets is significantly influenced by the financial friction of delayed settlement, quantifying this effect using an annualized settlement…

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math.OCmath.NAstat.MLTheoreticalRecentJul 16, 2026

Tamed Stochastic Gradient Hamiltonian Monte Carlo

Zhuoran Wang, Ying Zhang

This paper introduces a new tamed stochastic gradient Hamiltonian Monte Carlo (tSGHMC) algorithm for sampling and optimization problems with large stochastic gradients, providing error bounds and perf…

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