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1434 matching published research entries
Machine Learning · 2026-11-04

Accelerating FastDEC Clustering Algorithm with GPUs

arXiv:2611.03934v1 Announce Type: new Abstract: Fast Dominance Estimation Clustering (FastDEC) is an efficient variant of Density Peak Clustering (DPC) that achieves high clustering quality through dominance-based density estimation, but remains constrained by the computational cost of exact k-nearest-neighbor (k-NN) construction and dominance component (DC) processing.

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Machine Learning · 2026-11-04

The Information Limits of Neural Controlled Differential Equations Under Sparse Observations

arXiv:2611.03887v1 Announce Type: new Abstract: Neural controlled differential equations (Neural CDEs) evolve hidden states along continuous paths constructed by interpolating discrete observations. Sparse measurements leave the input between observation times undetermined, and admissible continuous paths consistent with the same data can produce different terminal states.

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Machine Learning · 2026-11-04

Dr. No: Feature Steering for Abstention in Vision-Language Models

arXiv:2611.03862v1 Announce Type: new Abstract: Large foundation models often answer even when the available visual or textual evidence is insufficient to support a reliable conclusion. This failure to abstain makes them hard to trust in high-stakes or information-seeking settings, where a confident but unsupported answer can be worse than no answer at all.

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Machine Learning · 2026-11-04

Quantifying out-of-distribution data severity with Wasserstein distances: benchmarking large language models for alloy property prediction

arXiv:2611.03767v1 Announce Type: new Abstract: As general-purpose Large Language Models (LLMs), such as Gemini and DeepSeek, exhibit increasingly advanced reasoning capabilities, a critical question arises: how do their property prediction abilities compare to those of domain-specific pretrained materials models?

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Machine Learning · 2026-11-04

The role of injected noise in diffusion model generalization

arXiv:2611.03764v1 Announce Type: new Abstract: Diffusion models trained on distinct datasets can produce highly similar samples when prompted with the same noise input, suggesting that they learn a generalized data distribution. We investigate the role of noise injected during the sampling process, and show that it plays an important role in making or breaking this strong generalization effect.

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Machine Learning · 2026-11-04

Language Models Can Benefit from Domain-Specific Inductive Biases

arXiv:2611.03756v1 Announce Type: new Abstract: Language models are typically trained with a single choice of architecture on diverse domains and data sources. Modern transformers have been extensively refined for such general-purpose learning, but are they equally effective across different subsets of the pretraining data?

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Machine Learning · 2026-11-04

Honest Small Decision Models for Finance: Scale, Specialization Collapse, and Mixed-Corpus Remediation

arXiv:2611.03755v1 Announce Type: new Abstract: Financial workflows need fast, calibrated, auditable decisions, not just generated text. We train System-1 decision models, small language models fine-tuned to answer typed questions (choice/score/noul) with a probability in a single forward pass, across two model families (K2-Horizon and Qwen3.5/3.8) and nine rungs from 0.8B to 32B parameters, using one frozen LoRA…

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Machine Learning · 2026-11-04

CaRe-KT: Continuity-Aware Retrieval-Augmented Reasoning for Knowledge Tracing

arXiv:2611.03744v1 Announce Type: new Abstract: Knowledge tracing (KT) estimates learners' evolving knowledge states from interaction histories to support adaptive learning. Retrieval-augmented KT improves these estimates using cross-learner behavioral evidence, but existing approaches typically separate evidence retrieval from downstream prediction.

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Machine Learning · 2026-11-04

RATSIFT: Resolution-Adaptive Transformer for Solar Irradiance Forecasting and Temporal Downscaling

arXiv:2611.03738v1 Announce Type: new Abstract: Accurate forecasting and temporal downscaling of solar irradiance is critical for reliable renewable energy integration and grid management. Traditional methods often struggle to capture rapid irradiance variability. In this work, we develop a Transformer-based architecture for simultaneous forecasting and temporal downscaling.

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Machine Learning · 2026-11-04

Minimal Superior Penalties: Characterising and Calibrating Decision-Aware Proper Scoring Rules

arXiv:2611.03734v1 Announce Type: new Abstract: Training a classifier means letting a validation metric decide which model is kept and when training stops. A natural requirement on that metric is superiority: every correctly classified forecast should score better than every incorrectly classified one, however close the underlying probabilities are.

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Machine Learning · 2026-11-04

Learning Directional Randers Geometry for Latent-Space Exploration

arXiv:2611.03675v1 Announce Type: new Abstract: Deep neural networks extract powerful latent representations from images, enabling fast and efficient downstream analysis. However, these latent spaces lack explicit geometric structure, leading to possibly poor interpolation fidelity and misleading extrapolation.

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Machine Learning · 2026-11-04

Stress-Testing the Robustness of LLM-Based Causal Inference

arXiv:2611.03656v1 Announce Type: new Abstract: Why do some of the world's most powerful Artificial Intelligence (AI) systems still struggle to reason about cause and effect? Causal discovery, the ability to discern the underlying drivers of a system, is fundamental to scientific inquiry and has traditionally relied on structured data and statistical methods.

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