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17,191 papers

#machine learning Preprint Oct 2026

Causal Syntax Circuits in CodeLMs: Budget and Probe Decide What Looks Localised

Code models write Python when the prompt does not say which language to use. We ask a mechanistic question about that habit: is it produced by a small, findable group of components inside the model? We run one pipeline---mean ablation, activation patching, greedy circuit extraction, a random-control significance test,...

Harsh Kumar, T. Joshi, Rahul Maity et al. · 0 citations
#machine learning Preprint Open access Oct 2026

TurboMamba: Faster Inference, Faster Training, and Better Prediction with Lexical Memory

We introduce TurboMamba, a language-model architecture for faster inference, faster training, and better token prediction. A global Mamba-3 model runs once per completed token block. A small Transformer uses this global context and earlier tokens within the block to predict the next token. Three lightweight additions i...

Hanxin Zhang · 0 citations
#machine learning Preprint Oct 2026

Diminishing Returns of Data in Sparse Autoencoders: Functional Behavior does not Guarantee Feature Reproducibility

This work studies how much activation data SAEs need by training four SAE architectures on three language models with budgets ranging from 5M tokens to a 500M-token reference, and measures two notions of convergence: functional behavior on standard evaluations and one-to-one reproducibility of learned features.

Sambit Ghosh, Madelyn Mathai, R. Babu et al. · 0 citations
#machine learning Preprint Oct 2026

Spectral Indistinguishability and Learning-Curve Identifiability in Quadratic Networks

Motivated by information-organization sculpting, we study spectral summaries and scalar learning curves in centered quadratic networks. We construct analytic positive input densities with Gaussian one- and two-coordinate marginals. Their complete fourth-moment operators are orthogonally intertwined by a map fixing the...

De-Kun Yang · 0 citations
#machine learning Preprint Oct 2026

KNOU-Flood: Advancing global streamflow forecasting with lead-aware probabilistic machine learning

Global streamflow forecasting supports flood preparedness, yet data-driven models trained on reanalysis lose skill when driven by operational forecasts, increasingly so with lead time. AIFL addresses this shift with a two-stage transfer-learning recipe and a deterministic LSTM, but it feeds one forecast lead time into...

Minjong Cheon · 0 citations
#machine learning Preprint Open access Oct 2026

Same Answer, New Box: How Much of RLVR's Out-of-Domain Gain Is Answer Format?

Reinforcement learning with verifiable rewards (RLVR) is credited with gains beyond the domain its rewards check, such as higher MMLU accuracy after training on mathematics. Such accuracies are usually read out of the model's text by an answer extractor. A model that learns to write its answer where the extractor looks...

Zongye Lyu · 0 citations
#machine learning Preprint Oct 2026

Feature Elicitation for SAE Steering of Deceptive Behaviour in Small LLMs

These findings provide the first evidence that a mechanistic activation-level intervention can mitigate the compliance gap in an alignment faking setup and identify a form of deceptive behaviour that may broaden the understanding of the different forms of deceptive behaviour in LLMs.

J. Koorndijk · 0 citations
#machine learning Preprint Oct 2026

Expanding Attention: A Taylor-Series Route to Linear-Time Transformers with a Fixed Number of Recurrent States

This work collapses the causal history into exactly $n$ recurrent states, each updated by one rank-one outer product per token and independent of context length $N, and factorizes each term into a tensor-power inner product, which collapses the causal history into exactly $n$ recurrent states.

Zi-Cong Huang · 0 citations
#machine learning Preprint Open access Oct 2026

FlowBudget: Training-Free Sampling-Budget Estimation for Flow Matching Models

Sampling from continuous flow-based generators such as flow matching models requires numerical ODE or SDE integration, making inference cost depend on the number of function evaluations (NFEs). In practice, the sampling budget is inherited from prior work or selected through expensive FID-versus-NFE sweeps, using FID t...

Zahra Dehghani, Pablo Piantanida, Mohammadhadi Shateri · 0 citations
#artificial intelligence Preprint Open access Oct 2026

Circuit Claims Depend on What Is Extracted and How It Is Compared

Circuit extraction identifies model components whose presence preserves a target behavior under ablation, but preserving behavior does not single out one circuit. We study this in a synthetic Lean tactic-prediction benchmark with fixed proof rules and randomized surface form. Across dense and weight-sparse checkpoints...

Yang Sheng, Jie Fu · 0 citations
#artificial intelligence Preprint Jul 2026

Amplitude-Only FFN Intervention for Tool-Structured LLM Inference: Method, Gated Evaluation Protocol, and Cross-Model Empirical Results

An inference-time intervention that masks feed-forward network activation coordinates while keeping pretrained weights fixed provides a task-dependent intervention surface, with causal mechanisms, equal-budget advantages, repeated-run uncertainty, and serving cost still open.

Sheng Xu, Zhen Chen, Jun-Hua Wang et al. · 0 citations
#artificial intelligence Preprint Open access Oct 2026

AirPASS: Over-the-Air Federated Learning via Pinching Antenna Systems

This paper investigates over-the-air federated learning (AirFL) in wireless systems where the access point is equipped with a multi-waveguide pinching antenna system (PASS). We adopt the widely studied learning-oriented AirFL formulation, which seeks to maximize the number of selected devices while keeping the aggregat...

Seyed Mohammad Azimi-Abarghouyi, Christopher G. Brinton · 0 citations

From tech blogs

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Microsoft Research Blog Nov 3, 2026

Learn the rules: The hacker mindset

Research Manager Mike Walker reflects on a career spanning hacker culture, cybersecurity, and AI, sharing lessons about trust, teamwork, leadership, and why solving difficult problems requires curiosity, judgment, agility—and an understanding of the rules. The post Learn the rules: The hacker mindset appeared first on Microsoft Research.

Google DeepMind Blog Nov 3, 2026

Agentic cheminformatics with Google Antigravity

Learn how Google Antigravity and our Cheminformatics Skills accelerate drug discovery workflows, search compounds, and propose novel rigidified macrocycles.

MIT News · Artificial Intelligence Oct 28, 2026

Making machines that can listen

Professor Paris Smaragdis develops computers with superhuman hearing for applications like speech recognition, music understanding, and environmental monitoring.

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