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artificial intelligence

19,710 papers

#artificial intelligence Preprint Open access Oct 2026

Future of Time Series Anomaly Detection: From Historical Review to Unified Outlook

Time series anomaly detection (TSAD) is a foundational problem in data mining, aiming to identify observations that deviate significantly from nominal temporal patterns. Driven by escalating data volumes and application complexity, recent research has yielded diverse architectures, including diffusion models, state spa...

Zhijie Zhong, Zhiwen Yu, Pengyu Li et al. · 0 citations
#artificial intelligence Preprint Open access Oct 2026

Rethinking SAE Evaluation: An Atomic Interpretable Unit Framework Reveals Hidden Polysemanticity and Redundancy

Sparse autoencoders (SAEs) were originally motivated by discovering monosemantic features, a property that characterizes individual features but does not specify what the learned feature set should look like as a whole. As SAEs have increasingly been adopted for attribution, circuit discovery, and intervention, researc...

Riteng Zhang, Xiaoqian Wang · 0 citations
#artificial intelligence Preprint Oct 2026

Short-to-Long: Detached Features for Long-Horizon Value Learning

This work introduces Short-to-Long (S2L), which supplies a long-horizon behavior learner with features trained by smaller-discount source networks, which yields aggregate performance gains, improving the paired terminal median on 40 of 57 Atari games.

Cheng-Quan Tong, B. Ivanovic, Marco Pavone · 0 citations
#artificial intelligence Preprint Oct 2026

aggmetrics: Aggregating Classification Performance Measures for Machine Learning

aggmetrics is a Python package that extends any binary performance measure expressed in the four confusion-matrix counts to multiclass, multilabel, ordinal, cost-sensitive, soft-label and cross-validation settings, by substituting one of four aggregation operators for what libraries usually expose as an average switch....

R. Prati · 0 citations
#artificial intelligence Preprint Oct 2026

AcoustiPrint: Physics-Guided Neural Design of Manufacturable Acoustic Structures

Recent work in additive manufacturing and neural inverse design enables the creation of complex three-dimensional structures to manipulate physical fields, yet these designs must also adhere to discrete, non-differentiable fabrication constraints. Current methods limit the design space by imposing differentiable soft m...

Shanmuka Sadhu, Harshvardhan C. Takawale, Yehia Zakaria et al. · 0 citations
#artificial intelligence Preprint Oct 2026

Probing and Steering for Safety-Relevant Behaviours in Large Language Models

Activation probes are computed directions in a language model's residual stream, used both to detect safety-relevant behaviours and, by adding their direction back into the stream, to steer them, which power an interactive interface through which a user can score and steer text directly.

Nimun Bajwa, Massimo Poesio · 0 citations
#artificial intelligence Preprint Oct 2026

GAV: A scientific experimentation environment for PDE agents

Generator-Agent-Verifier (GAV), a scientific experimentation environment that makes new PDE problems verifiable by construction verifiable by construction, is introduced and a theoretical analysis of evaluation reliability and guided development is provided.

Mu-Heng Li, Wen-Long Mou · 0 citations
#artificial intelligence Preprint Oct 2026

Generalizing Metropolis-Hastings for DAG Sampling

This work advances Markov chain Monte Carlo algorithms by introducing novel moves that simultaneously resample the parents for multiple nodes of the DAG by introducing duet sampling, a new generalization of the Metropolis-Hastings algorithm.

Daniele Nikzad, Mikko Koivisto · 0 citations
#artificial intelligence Preprint Oct 2026

SWE-VERIFIER: Selective Verification for Cost-Efficient Coding Agents

SWE-Verifier is introduced, a lightweight generative model that selectively triggers candidate sampling and verification that achieves comparable or higher resolution than the trajectory and all-step baselines at substantially lower cost.

Kai-Jian Zou, V. Chennareddy, Yun-Xiang Zhang et al. · 0 citations
#artificial intelligence Preprint Oct 2026

Edit, Don't Imitate: Minimal-Edit On-Policy Distillation for Multimodal Reasoning

This work proposes minimal-edit corrective on-policy distillation, a method that preserves on-policy supervision while avoiding full-response imitation, and improves perception-oriented performance, particularly low-level geometric perception, and transfers to external mathematics and perception benchmarks.

Wen Ye, Ai-Lin Deng, Zi-Rui Wang et al. · 0 citations
#artificial intelligence Preprint Oct 2026

Automated screening of privacy risks in medical AI

A lightweight screening tool that uses four small models to identify patients with high risk of exposure before production-model training and assess if flagged patients could be protected without removing their data is developed.

Konstantinos Vrettos, E. Tzanis, H. Kondylakis et al. · 0 citations

When Reconstruction Is Not Enough: Doubly Robust Counterfactual and Interventional Mediation Analysis with Learned Multimodal Representations

A workflow combining modality-specific variational autoencoders trained outside the estimation sample, cross-fitted doubly robust and one-step estimators, locked phenotypes, select-then-confirm pathway analysis, portable representations for external replication, and diagnostics for representation insufficiency, exposur...

Cong Cao · 0 citations

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