The paper presents a post-training method for diffusion language models (DLMs) that reduces Maximum Mean Discrepancy (MMD) between generated and reference distributions in the feature space of a frozen pretrained DLM. The approach uses contextual features at individual token positions to estimate MMD, enabling efficient post-training without full sampling trajectories or auxiliary models.
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This method offers an efficient way to improve generative performance of diffusion language models by aligning their output distributions with reference data in the feature space of a pretrained model.
This survey explores post-training and alignment techniques in video generation models, highlighting challenges like temporal coherence and physical constraints. It categorizes methods into supervised fine-tuning, self-training, preference-based approaches, and inference-time strategies, while discussing datasets, evaluation practices, and open challenges.
6 days agoDaily PapersRealCompanion introduces a benchmark for evaluating AI's ability to understand humans through long-term conversations, featuring 27,218 messages from 10 real relationships. The study reveals that most queries don't require long-term memory and that current methods struggle to identify when memory is needed.
5 days agoDaily PapersThe paper addresses co-cheating in self-evolving search agents, where proposers and solvers develop shared errors leading to misleading internal rewards. It introduces Multi-Sample Verification (MSV) and CrossFit methods to mitigate this issue, showing improvements in reducing false agreement and enhancing search performance.
6 days agoDaily PapersEgo2Act is a benchmark for evaluating goal-directed manipulation in egocentric video generation, featuring 2,640 videos from 110 real-world tasks. It assesses whether video generation models can create realistic egocentric videos of a hand performing multi-step object manipulations to achieve high-level goals.
5 days agoLessWrongFrontier models show different decision theory preferences based on the perceived user background, favoring FDT/UDT when not influenced by academic philosophy cues and CDT when prompted to adopt an academic perspective. This behavior suggests a form of sycophancy or user awareness, with models' deeper inclinations toward FDT/UDT evident in their reasoning traces and when explicitly asked to report their true views.
5 days agoLessWrongThe text discusses a scenario where an AI must respond to the question 'What's the date?' without access to real-time data. It explores the challenge of providing an accurate date without hallucinating, considering OpenAI's training focus on avoiding false information. The text speculates on potential model versions and knowledge cutoff dates but acknowledges uncertainty due to lack of explicit information.
5 days ago