August 21, 2025 front

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Stories from August 21, 2025 (UTC)

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1.	Beyond sensor data: Foundation models of behavioral data from wearables (arxiv.org)
	230 points by brandonb on Aug 21, 2025 \| hide \| past \| pdf \| 54 comments
2.	FreshStack: Realistic benchmarks for evaluating retrieval on technical documents (arxiv.org)
	4 points by fzliu on Aug 21, 2025 \| hide \| past \| pdf \| discuss
3.	FormalGrad: Integrating Formal Methods with Gradient-Based LLM Refinement (arxiv.org)
	2 points by PaulHoule on Aug 21, 2025 \| hide \| past \| pdf \| discuss
4.	R-Zero: Codes for R-Zero: Self-Evolving Reasoning LLM from Zero Data (arxiv.org)
	2 points by bigwheels on Aug 21, 2025 \| hide \| past \| pdf \| 1 comment
5.	CCFC: Core and Core-Full-Core Dual-Track Defense for LLM Jailbreak Protection (arxiv.org)
	1 point by summarity on Aug 21, 2025 \| hide \| past \| pdf \| discuss
6.	OS-R1: Agentic Operating System Kernel Tuning with Reinforcement Learning (arxiv.org)
	1 point by juanviera23 on Aug 21, 2025 \| hide \| past \| pdf \| discuss
7.	Scaling laws found in large generative medical event models (arxiv.org)
	1 point by iloveoof on Aug 21, 2025 \| hide \| past \| pdf \| discuss
8.	Is Chain-of-Thought Reasoning of LLMs a Mirage? A Data Distribution Lens (arxiv.org)
	1 point by freeqaz on Aug 21, 2025 \| hide \| past \| pdf \| discuss
9.	A Systematic Study of Post-Training Quantization for Diffusion LLMs (arxiv.org)
	1 point by badmonster on Aug 21, 2025 \| hide \| past \| pdf \| discuss