Reasoning models
arxiv arXiv cs.AI · 2d ago

TASER: Task-Differentiated Skill Expansion for Heterogeneous Continual Learning

TASER introduces a framework that dynamically expands and routes atomic skills for continual learning across highly heterogeneous tasks. It reduces catastrophic forgetting and improves plasticity by ensuring semantic distinctness and efficient capacity allocation through skill detection and routing mechanisms. Evaluated on HeteroCLBench, a benchmark of 19 diverse tasks across 9 cognitive dimensions, TASER outperforms existing baselines.

arxiv arXiv cs.AI · 2d ago

Benchmark Evaluation of Small Language Models for Arabic NLP

A benchmark of 240 Arabic test items across eight domains and ten skills assesses twelve small language models in zero-shot settings. Gemma 3 (12B) achieved the highest overall score (4.548/5), followed by Aya and C4AI Command Arabic, with performance linked more to Arabic alignment and instruction-following than model size. Common failure modes include prompt leakage, hallucination, and weak task adherence.

arxiv arXiv cs.CL · 2d ago

Group-Graph Policy Optimization for Long-Horizon Agentic RL

Group-Graph Policy Optimization (G2PO) introduces a graph-based approach to enhance long-horizon agentic reinforcement learning by transforming interaction trajectories into state-transition graphs. It enables group-aggregated state-value estimation and edge-centric advantage calculation, improving credit assignment and reducing variance, and achieves up to 22.2% success rate improvement over GRPO on WebShop, ALFWorld, and AppWorld benchmarks.