Information Theory
MSC 94AShannon theory, coding theory, entropy, mutual information, channel capacity.
38 problems
Remove logarithmic gaps in minimax sample complexity for matrix normal covariance estimation
Sourced from the work of Rafael Mendes de Oliveira, William Cole Franks, Akshay Ramachandran, Michael Walter
Full minimax characterization for tensor normal factor estimation beyond the largest factor
Sourced from the work of Rafael Mendes de Oliveira, William Cole Franks, Akshay Ramachandran, Michael Walter
Optimal guarantees in the low-sample tensor regime (below constant-Frobenius threshold)
Sourced from the work of Rafael Mendes de Oliveira, William Cole Franks, Akshay Ramachandran, Michael Walter
Exact information-theoretic detection threshold for correlated SBM vs Erdos-Renyi pair
Sourced from the work of Guanyi Chen, Jian Ding, Shuyang Gong, Zhangsong Li
General-$k$ threshold for testing correlated SBMs against independent SBMs
Sourced from the work of Guanyi Chen, Jian Ding, Shuyang Gong, Zhangsong Li
From low-degree hardness to unconditional polynomial-time hardness
Sourced from the work of Guanyi Chen, Jian Ding, Shuyang Gong, Zhangsong Li
Remove the Polylogarithmic Gap to Exact Minimax Optimality
Sourced from the work of Kaizheng Wang
Polynomial-time minimax robust mean estimation under star-shaped constraints
Sourced from the work of Akshay Prasadan, Matey Neykov
Sharp minimax behavior as contamination approaches the breakdown boundary $\epsilon\uparrow 1/2$
Sourced from the work of Akshay Prasadan, Matey Neykov
Information-theoretic limits under heavy-tailed (non-sub-Gaussian) noise
Sourced from the work of Akshay Prasadan, Matey Neykov
Robust Confounder Selection Under Imperfect Primary-Set Elicitation
Sourced from the work of F. Richard Guo, Qingyuan Zhao
Statistical Identification of Primary Adjustment Sets From Data
Sourced from the work of F. Richard Guo, Qingyuan Zhao
Optimal Break-Point Estimation Rate in Grouped Time-Varying Network VAR
Sourced from the work of Degui Li, Bin Peng, Songqiao Tang, Wei Biao Wu
Full Multiple-Break Theory for Latent Group Structure and Coefficients
Sourced from the work of Degui Li, Bin Peng, Songqiao Tang, Wei Biao Wu
Finite-sample optimal FDR-FNR frontier under the two-group model
Sourced from the work of Yutong Nie, Yihong Wu
Optimal FDR-FNR tradeoff beyond independent two-group mixtures
Sourced from the work of Yutong Nie, Yihong Wu
Asymptotic Normality of Spectrum-Aware Debiasing Beyond Right-Rotationally Invariant Designs
Sourced from the work of Yufan Li, Pragya Sur
Theory for Debiased PCR Under General Covariate Models
Sourced from the work of Yufan Li, Pragya Sur
Overparameterized optimal subsample size for infinite-ensemble subagging
Sourced from the work of Takuya Koriyama, Pratik Patil, Jin-Hong Du, Kai Tan, Pierre C. Bellec
Nonasymptotic guarantees for bagged regularized M-estimators
Sourced from the work of Takuya Koriyama, Pratik Patil, Jin-Hong Du, Kai Tan, Pierre C. Bellec
Extension beyond convex differentiable-loss framework
Sourced from the work of Takuya Koriyama, Pratik Patil, Jin-Hong Du, Kai Tan, Pierre C. Bellec
Finite-sample error-rate control and power guarantees under the linear subspace model
Sourced from the work of Amitay Eldar, Keren Mor Waknin, Samuel Davenport, Tamir Bendory, Armin Schwartzman, Yoel Shkolnisky
Log-factor-free adaptive contraction on general Minkowski-dimensional domains
Sourced from the work of Tao Tang, Xiuyuan Cheng, Nan Wu, David Dunson
Optimal adaptation beyond compact manifolds
Sourced from the work of Tao Tang, Xiuyuan Cheng, Nan Wu, David Dunson
Machine-learning debiased efficient estimation under generalized data-fusion alignments
Sourced from the work of Ellen Sandra Graham, Marco Carone, Andrea Rotnitzky
Beyond smooth finite-dimensional targets in unified semiparametric data fusion
Sourced from the work of Ellen Sandra Graham, Marco Carone, Andrea Rotnitzky
Non-asymptotic AMP distributional theory beyond polynomially many iterations
Sourced from the work of Gen Li, Yuting Wei
Characterize adaptive distribution classes where two-point rates are attainable
Sourced from the work of Spencer Compton, Gregory Valiant
Remove polylogarithmic slack in attainable two-point rates
Sourced from the work of Spencer Compton, Gregory Valiant
Sharp boundary for attainability in finite-sample location models
Sourced from the work of Spencer Compton, Gregory Valiant
Remove polylogarithmic dimension factors in high-dimensional Berry--Esseen bounds for $m$-dependent sums
Sourced from the work of Heejong Bong, Arun Kumar Kuchibhotla, Alessandro Rinaldo
Complete optimality characterization in the independent-vector specialization under minimal moments
Sourced from the work of Heejong Bong, Arun Kumar Kuchibhotla, Alessandro Rinaldo
Critical SNR for outlier emergence at fixed summary statistics
Sourced from the work of Gerard Ben Arous, Reza Gheissari, Jiaoyang Huang, Aukosh Jagannath
Small-SNR no-outlier regime and monotonicity in SNR
Sourced from the work of Gerard Ben Arous, Reza Gheissari, Jiaoyang Huang, Aukosh Jagannath
Sharp dynamic emergence thresholds for XOR/multilayer GMM classification
Sourced from the work of Gerard Ben Arous, Reza Gheissari, Jiaoyang Huang, Aukosh Jagannath
Outlier theory beyond non-degeneracy/invertibility assumptions (ReLU and zero diagonal entries)
Sourced from the work of Gerard Ben Arous, Reza Gheissari, Jiaoyang Huang, Aukosh Jagannath
Outlier characterization for unbounded link functions (e.g., phase retrieval)
Sourced from the work of Gerard Ben Arous, Reza Gheissari, Jiaoyang Huang, Aukosh Jagannath