Understanding the Limitations of Variational Mutual Information Estimators
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Abstract (arXiv)
Variational approaches based on neural networks are showing promise for estimating mutual information (MI) between high dimensional variables. However, they can be difficult to use in practice due to poorly understood bias/variance tradeoffs. We theoretically show that, under some conditions, estimators such as MINE exhibit variance that could grow exponentially with the true amount of underlying MI. We also empirically demonstrate that existing estimators fail to satisfy basic self-consistency properties of MI, such as data processing and additivity under independence. Based on a unified perspective of variational approaches, we develop a new estimator that focuses on variance reduction. Empirical results on standard benchmark tasks demonstrate that our proposed estimator exhibits improved bias-variance trade-offs on standard benchmark tasks.
Key facts. Cited by 140 papers in the map (data through 14 Oct 2026). First posted on arXiv 14 Oct 2019.
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Citing papers per year: 2021: 32; 2022: 23; 2023: 21; 2024: 27; 2025: 26; 2026: 11.
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50 most cited of 140 All 140 (JSON)
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50 newest of 140 All 140 (JSON)
- 2022Discrete Contrastive Diffusion for Cross-Modal Music and Image Generationcited by 44
- 2024Information Theoretic Text-to-Image Alignmentcited by 8
- 2025FMMI: Flow Matching Mutual Information Estimationcited by 4
- 2025MMG: Mutual Information Estimation via the MMSE Gap in Diffusioncited by 3
- 2024Channel-aware Contrastive Conditional Diffusion for Multivariate Probabilistic Time Series Forecastingcited by 2
- 2025FMMI: Flow Matching Mutual Information Estimation11 Nov 2025
- 2025MMG: Mutual Information Estimation via the MMSE Gap in Diffusion24 Sep 2025
- 2024Channel-aware Contrastive Conditional Diffusion for Multivariate Probabilistic Time Series Forecasting3 Oct 2024
- 2024Information Theoretic Text-to-Image Alignment31 May 2024
- 2022Discrete Contrastive Diffusion for Cross-Modal Music and Image Generation15 Jun 2022
- 2026GRIP: Grounded Reasoning via Information-Restricted Premises17 Aug 2026
- 2021Cross-Modal Contrastive Learning for Text-to-Image Generationcited by 259
- 2022Chaos is a Ladder: A New Theoretical Understanding of Contrastive Learning via Augmentation Overlapcited by 105
- 2023Factorized Contrastive Learning: Going Beyond Multi-view Redundancycited by 75
- 2022Rethinking Minimal Sufficient Representation in Contrastive Learningcited by 69
- 2021Implicit Deep Adaptive Design: Policy-Based Experimental Design without Likelihoodscited by 61
- 2021Density Ratio Estimation via Infinitesimal Classificationcited by 61
- 2021DICE: Diversity in Deep Ensembles via Conditional Redundancy Adversarial Estimationcited by 48
- 2021Negative Data Augmentationcited by 46
- 2021The Information Geometry of Unsupervised Reinforcement Learningcited by 37
- 2023Beyond Normal: On the Evaluation of Mutual Information Estimatorscited by 37
- 2021Featurized Density Ratio Estimationcited by 33
- 2023MINDE: Mutual Information Neural Diffusion Estimationcited by 31
12 most cited of 128 All 128 (JSON)
- 2026ALICE: In-context, Zero-shot, Mutual Information Estimation28 Sep 2026
- 2026Gecko: Fast Private Inference via Secure Public Encoder Offloading3 Aug 2026
- 2026RoboShape: Information-Theoretic Point Cloud Representations for Privacy-Aware Robot Perception16 Jul 2026
- 2026Towards Diverse and Comprehensive Benchmarks for Mutual Information Estimation3 Jul 2026
- 2026InfoAtlas: A Foundation Model for Zero-Shot Statistical Dependence Estimate29 May 2026
- 2026One-Step Score-Based Density Ratio Estimation12 Apr 2026
- 2026Mutual information and task-relevant latent dimensionality8 Feb 2026
- 2026Separation-Utility Pareto Frontier: An Information-Theoretic Characterization4 Feb 2026
- 2026Amortized Acquisition Optimization for Bayesian Optimization with Variational Mutual Information13 Jan 2026
- 2025Quasiprobabilistic Density Ratio Estimation with a Reverse Engineered Classification Loss Function22 Dec 2025
- 2025MIST: Mutual Information Estimation Via Supervised Training24 Nov 2025
- 2025Contrastive Predictive Coding Done Right for Mutual Information Estimation29 Oct 2025
12 newest of 128 All 128 (JSON)