arXiv AI
Does This Action Still Explain the Task? Reverse Scoring for Diffusion Language Model Agents
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When Instructions Retrieve Trajectories: Diagnosing and Mitigating Generalization Failures in VLA Models
arXiv:2609.39971v1 Announce Type: cross Abstract: Vision-language-action (VLA) models can exceed 90% success on in-distribution tasks and withstand nuisance changes that preserve the required action,...
arXiv Machine Learning
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Neither Parallel Nor Sequential: How DiffusionGemma Actually Commits Tokens
arXiv:2606. 14620v1 Announce Type: new Abstract: Open diffusion language models are marketed as parallel, non-autoregressive decoders, yet the order in which a shipped checkpoint actually commits its tokens is almost never measured.
Hugging Face Trending Papers
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Actions Speak Louder than Words: Measuring Cross-Lingual Policy Retention in Tool-Using Agents
When a tool-using agent is given the same task in a different language, does it still take the same steps? Multilingual evaluation rarely asks: it compares final answers and discards the actions.
arXiv Computation and Language
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Remask, Don't Replace: Token-to-Mask Refinement in Diffusion Language Models
arXiv:2604. 18738v3 Announce Type: replace Abstract: Diffusion language models (dLLMs) generate text through iterative denoising, filling multiple masked positions at each step.
arXiv Machine Learning
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Teaching Diffusion to Speculate Left-to-Right
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Informed Masking: Structure-Aware Perturbation for Reinforcement Learning in Diffusion Large Language Models
Informed Masking (IM) is a new technique for aligning Diffusion Large Language Models (dLLMs) with Reinforcement Learning (RL). It identifies a systematic upstream/downstream token structure in dLLM rollouts and shows that masking downstream tokens creates better subproblems for likelihood estimation. When integrated into three state‑of‑the‑art dLLM RL methods on LLaDA‑8B‑Instruct, IM yields up to 2.01%, 8.68%, and 5.77% relative average gains on math and planning benchmarks while improving training stability.