ensemble-methods

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#ensemble-methods

Efficient Bayesian Deep Ensembles via Analytic Predictive Inference

arXiv cs.LG · 2026-07-09 Cached

Introduces an efficient Bayesian deep ensemble method for predictive regression that combines low-dimensional ensemble representation, closed-form Bayesian aggregation, and independent ensemble training to achieve calibrated uncertainty estimates with computational efficiency.

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#ensemble-methods

AdaBoosting Text Prompts for Vision-Language Models

arXiv cs.LG · 2026-07-02 Cached

提出一种基于AdaBoost的文本提示提升(TPB)框架,通过顺序集成弱文本提示分类器来改进视觉-语言模型的少样本分类性能,并在跨模型迁移中保持增益。

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Deployment-Side Adaptiveness in Multi-Horizon Volatility Forecasting

arXiv cs.LG · 2026-06-29 Cached

This paper investigates how different inference-time deployment rules (rollout strategies) impact multi-horizon volatility forecasting. It shows that non-default rollout rules often improve performance and that validation-based deployment policies provide a low-cost improvement over standard MIMO deployment, emphasizing the importance of deployment policy alongside model architecture.

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When Does Combining Language Models Help? A Co-Failure Ceiling on Routing, Voting, and Mixture-of-Agents Across 67 Frontier Models

Hugging Face Daily Papers · 2026-06-25 Cached

This paper identifies a fundamental constraint on multi-model LLM systems: accuracy is capped by the rate at which all models fail on the same query. Across 67 frontier models, the all-wrong rate is significantly underestimated by common metrics, limiting gains from voting, routing, and ensemble strategies.

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#ensemble-methods

We built a source-available LLM reliability library (free for research / personal / internal eval) that can cut inference cost by half at matched quality, and you adopt it by changing one import [P] [R]

Reddit r/MachineLearning · 2026-06-04

AgentCodec is a source-available library unifying 28 LLM reliability techniques (retries, ensembling, generator/critic refinement, etc.) under a single OpenAI-compatible API, with adaptive routers that can reduce inference costs by ~56% at matched quality. It adopts a communication-theory framing and supports drop-in replacement for OpenAI, Anthropic, and Ollama clients.

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Counterfactual Graph for Multi-Agent LLM Calibration

arXiv cs.CL · 2026-06-01 Cached

This paper introduces CAGE, a counterfactual graph-based method for calibrating multi-agent LLM systems, evaluating on benchmarks like TriviaQA and MMLU-Pro across various communication topologies. The method outperforms existing post-hoc and LLM-elicited calibration approaches.

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Linear Ensembles Wash Away Watermarks: On the Fragility of Distributional Perturbations in LLMs

arXiv cs.CL · 2026-06-01 Cached

This paper reveals a fundamental vulnerability in LLM watermarking: when users have access to multiple models, averaging their output distributions cancels watermark perturbations, enabling detection evasion. The authors propose WASH and demonstrate empirically that averaging 3-5 models suppresses detection z-scores below thresholds while improving text quality.

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Comparative Evaluation of Machine Learning Approaches for Minority-Class Financial Distress Prediction Under Class Imbalance Constraints

arXiv cs.LG · 2026-05-15 Cached

This paper presents a comparative evaluation of classical, ensemble, and neural machine learning approaches for predicting financial distress under severe class imbalance, using SMOTE for oversampling and SHAP for interpretability.

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Pitfalls of Unlabeled Disagreement-Based Drift Detection in Streaming Tree Ensembles

arXiv cs.LG · 2026-05-14 Cached

This paper investigates disagreement-based drift detection in ensembles of incremental decision trees, finding that while effective in neural networks, the method underperforms loss-based detectors for tree ensembles due to limited model plasticity.

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UCB exploration via Q-ensembles

OpenAI Blog · 2017-06-05 Cached

OpenAI presents a novel exploration strategy for deep reinforcement learning using ensembles of Q-functions with upper-confidence bounds (UCB), demonstrating significant performance improvements on the Atari benchmark.

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Semi-supervised knowledge transfer for deep learning from private training data

OpenAI Blog · 2016-10-18 Cached

OpenAI presents PATE (Private Aggregation of Teacher Ensembles), a privacy-preserving approach that trains a student model on noisy outputs from multiple teacher models trained on disjoint datasets, providing strong differential privacy guarantees without exposing sensitive training data.

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