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#artificial intelligence Preprint Open access Oct 2026

CoEvoke: Evoking Multi-Agent Collaboration for Trajectory Collection

Training multi-agent collaboration requires trajectories of checking, feedback, and repair, yet task-solving rollouts may end in immediate approval or repeat unsuccessful attempts without useful correction. We introduce CoEvoke, a cross-domain framework that evokes these interactions during trajectory collection. Contr...

Lin Wu, Shu Yao, Yuheng Wang et al. · 0 citations
#artificial intelligence Preprint Open access Oct 2026

Barycentric Anchored Weight Search for Robust Model Merging

We propose Barycentric Anchored Search, a post-hoc weight-space procedure for improving fine-tuned vision models under distribution shift without additional gradient training or increased inference cost. Given a pre-trained initialization and two checkpoints fine-tuned on a source dataset, the method constructs barycen...

Antoni Buades, Jose-Luis Lisani · 0 citations
#artificial intelligence Preprint Open access Oct 2026

Bias Robustness of Genetic Multi-Criteria Sorting versus Learned Rankers under Proxy Skew and Label Contamination

Learning-to-rank (LTR) models can align rankings with undesignated signals when those signals appear as features or leak into training labels. We compare label-free genetic multi-criteria sorting (open Pikaia strategy variants), which reranks fixed candidate pools using an explicit criteria vector C, to label-trained L...

Vladyslav Shevchuk, Carlos Uziel P\'erez Malla, Philipp Wissgott · 0 citations
#artificial intelligence Preprint Open access Oct 2026

Physics-Informed State Space Models for Day-Ahead Photovoltaic Power Forecasting

Accurate day-ahead photovoltaic (PV) power forecasting requires both strong temporal modeling and adherence to physical PV system constraints. Purely data-driven models often ignore the underlying PV conversion process and may produce predictions that are outside the operational range of a PV system. In this paper, we...

Phil Aupke, Muhammad Hassan, Khalid Ali et al. · 0 citations
#artificial intelligence Preprint Open access Oct 2026

When Log Parsing Removes What Matters: Detecting Failures in Distributed GPU Workloads

Large AI models increasingly rely on distributed GPU execution, yet it remains unclear whether established failure analysis methods transfer effectively to this setting. We introduce GF-Bench, a PyTorch-based framework and dataset for generating diverse failures in distributed GPU workloads. The framework supports exte...

Boyuan Cui, Yuyang Zeng, Yifang Tian et al. · 0 citations
#artificial intelligence Preprint Open access Oct 2026

What Can Language Models Inherit from Solomonoff Induction? Limits, Attainable Properties, and What Served Conditionals Reveal

A familiar line of reasoning runs as follows: language models are flexible approximators trained under a strictly proper loss, so scale brings them closer to Solomonoff induction, and their predictive success is evidence of that approach. We apply known results from algorithmic information theory, universal prediction...

Luan Ozelim, Abicumaran Uthamacumaran, Hector Zenil · 0 citations
#artificial intelligence Preprint Open access Oct 2026

Coding LLMs Can Be Harnessed to Learn Interpretable Models from Data

Since compact, interpretable classifiers correspond to simple programs, it is natural to ask if LLM-based coding agents can be used to learn interpretable models from data. In this paper we present a simple harness that repeatedly prompts a coding LLM to produce the next rule in a rule set, given a sample of labeled ex...

Aditya Kumar, Cassandra A. Cohen, William W. Cohen · 0 citations
#artificial intelligence Preprint Open access Oct 2026

Showing versus Doing: Teaching by Demonstration

People often learn from others' demonstrations, and inverse reinforcement learning (IRL) techniques have realized this capacity in machines. In contrast, teaching by demonstration has been less well studied computationally. Here, we develop a Bayesian model for teaching by demonstration. Stark differences arise when de...

Mark K. Ho, Michael L. Littman, James MacGlashan et al. · 0 citations
#artificial intelligence Preprint Open access Oct 2026

PreSO: Privileged Representation Isolation for On-Policy Self-Distillation

On-policy self-distillation (OPSD) uses a self-teacher conditioned on privileged information to turn the sparse outcome signal of reinforcement learning with verifiable rewards (RLVR) into dense token-level supervision. Yet the teacher's advantage may depend on information unavailable to the student at inference, raisi...

Yuhang Yang, Mingxuan Xia, Chao Ye et al. · 0 citations
#artificial intelligence Preprint Open access Oct 2026

VH-GPO: Verified Handoff for LLM Agent Reinforcement Learning

Group-relative reinforcement learning methods such as GRPO train large language model (LLM) agents by comparing rollouts for the same task. When every trajectory in a group fails with the same reward, relative advantages collapse toward zero, leaving no useful learning signal. A frozen teacher can recover from a studen...

Haoze Li, Peng Zhou, Peiyuan Wu et al. · 0 citations
#artificial intelligence Preprint Open access Oct 2026

SemTree: Judge-Aware Semantic Decision Trees for Inspectable and Repairable Rule Decisions

Rule decisions such as content moderation, advertising compliance, and eligibility checks combine several conditions, exemptions, and missing-information cases, and an error can be fixed only once the failing condition is known. We introduce SemTree, a framework that represents a rule decision as a semantic decision tr...

Jincheng Gao, Wei Ding, Shuo Sun · 0 citations
#artificial intelligence Preprint Open access Oct 2026

Enhanced Trading Systems with Intelligent Market Analysis

This paper proposes a hybrid reinforcement learning trading framework integrating intraday market data with transformer-based financial sentiment signals. The system extracts sentiment dynamics and semantic event clusters from financial news and incorporates them into a PPO-based trading agent. Experiments on intraday...

Vedanth Padmaraman, Shreen Anand, Vamshi Vishruth J et al. · 0 citations

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Microsoft Research Blog Oct 12, 2026

Simulating student learning for better AI tutoring

StudentSim is a research system for evaluating and improving AI tutoring tools before they are tested with learners. It models how individuals may engage with tutors, giving feedback to improve tutor performance across subjects like chess, writing, and mathematics. The post Simulating student learning for better AI tutoring appeared first on Microsoft Research.

MIT News · Artificial Intelligence Oct 7, 2026

Discovering the value of humanistic inquiry

Students in MIT’s Concourse program delve deeply into the human condition, debate challenging questions, and learn to develop judgment about issues that can’t be quantified.

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