ZhangYvJing's

Daily Brief

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00

Film / Book Chapter

Her
2013 / Spike Jonze

Her (2013) · Spike Jonze

今天适合看《她》,因为它会把人从抽象的 AI 讨论里拉回到真实关系、孤独和投射本身,更适合当作生活感受的校准而不是技术议题的延伸。

Thinking in Systems
Donella H. Meadows

Thinking in Systems · Donella H. Meadows

Chapter 1: The Basics

A clean way to see feedback loops, stocks, flows, and delays before turning every technical or life problem into a single-variable optimization.

01

Insight

今天的输入更像几股不同语气的材料同时挤在一起:社区链接在暴露工程和产品环境里的真实焦点,长视频在把这些焦点放回更完整的语境里,研究材料则提醒人热度和可落地性并不总是同一件事。如果先不急着做结论,至少可以把这几条线索放在一起看:Hacker News 的 Run Qwen 3.8 Flash Next (125B) on consumer hardware (RTX 4090) at 100T/s;Hacker News 的 Improper redaction reveals Google Data Center water and electricity usage;Hacker News 的 Remove and Disable Apple Macos27 AI Models Tool;Hacker News 的 A map of every lighthouse;Hacker News 的 'Neanderthals Among Us' review;Hacker News 的 Results from the ASIC puzzle。真正值得注意的不是单条内容本身,而是它们共同指向了什么、彼此漏掉了什么。
03

Hacker News

01
Qwen 3.8 Flash Next(125B参数)现在可以在消费级显卡(如RTX 4090,12GB以上)上以约100 token/秒的速度运行。该系统通过Strata工具实现,将模型压缩到局部推理格式,利用CPU和RAM协同显卡处理,将24,576个专家团队按需调度,显卡缓存常用专家,其余从RAM和SSD读取,采用“猜测后校验”策略加速推理。在32K上下文场景下,首条消息约1分钟加载,其余消息秒级响应。此举意味着开发者无需依赖云端服务器即可本地部署对话、编程和图像处理的大模型,显著降低使用成本,但首次运行需数分钟加载且对硬件资源有较高要求。
03
Remove and Disable Apple Macos27 AI Models Tool
macOS 27 取消了 Apple Intelligence 的总开关,关闭功能后模型仍保留在磁盘;RemoveMacAI 通过一键脚本关闭相关功能、删除已下载模型并阻止系统再次下载。该工具利用配置文件调用 Apple 的限制键,把模型下载导向本地闭环端口,通过资产服务删除模型而不修改 /System,且系统完整性保护始终保持。使用后可释放占用空间,失效 Siri、写作工具、Genmoji 等功能,但取词输入及其它系统服务不受影响,设置随系统更新保持并可通过同脚本恢复。
04
A map of every lighthouse
全球首次汇总所有已测绘灯塔的实时闪烁周期,形成交互式地图。该地图基于公开航海图数据,将每座灯塔的实际光特征叠加于地球表面。航海人员与港口管理部门可通过该平台统一查询灯塔状态,使信息获取更集成,有益地有助于优化航线安排并及时降低夜间航行的不确定性。
06
Results from the ASIC puzzle
Hacker News上的一场针对11x11星争拼图硬件核检查器的逆向工程挑战正式揭晓。该芯片通过行列地区计数器、区域映射ROM和延迟线确保星星布局规则,成功输入后触发解密输出"EASTER EGG"字符串。400份来自30多个国家的提交涵盖从学生到资深工程师,主要使用KLayout、Yosys和Z3等工具完成布局提取、电路仿真和 SAT求解。该挑战揭示了逆向工程社区对硬件安全、验证方法和跨学科协作的实践应用,影响了芯片设计验证流程和开源工具链的发展方向。
07
Homa: The End of TCP for AI Clusters [video]
Google技术团队推出Homa协议,旨在取代AI集群中的TCP协议。该视频展示了Homa如何通过单一传输层优化大规模AI训练通信效率。当前TCP在高带宽低延迟场景下表现不佳,导致AI工作负载通信成本上升。Homa采用端到端拥塞控制机制,针对人工智模型参数同步场景设计,显著降低数据传输延迟和带宽浪费。该变化将影响AI数据中心运维人员、集群架构师及云计算服务提供商,其成本和能耗结构正在重构。
09
一个名为 Build with Python 的入门课程让学习者用代码在画布上绘图,实现机器人、圆形行列和点击绘画。课程先教授函数调用、变量、循环基础概念,随后加入点击事件处理,使学习者能够通过调用函数绘制机器人、重复绘制圆形并响应鼠标点击来绘画。这使得零基础学习者能够即时看到编码结果,降低抽象概念学习门槛,影响编程入门教学方式和自学者时间成本。
10
用户通过自然语言提示让 Claude 生成一个可行走、物理准确的奥尼尔圆柱;系统显示正在加载,说明大语言模型能够将复杂的几何概念转化为可视化模型;这一能力可能改变需要快速验证太空栖息地概念的设计师或爱好者的工作方式,减少手工建模的时间与成本;同时,它也可能提升跨学科团队对概念模型的共享与讨论速度。
05

YouTube

02
After 10 years of monthly releases, VS Code now ships weekly. It wasn't more AI that made it work. It was rebuilding the whole system around it. Harald Kirschner, principal product manager on VS Code at Microsoft, explains how a small team shipping to more than 50 million users moved from monthly to weekly releases with AI agents, and what broke along the way. He covers three stages: shipping faster (agent-ready codebases, skills, TypeScript Go's 10x faster builds, letting agents drive the app), holding quality (mandatory AI code review, AI issue triage, error stacks that turn into auto-fix P
agent, ai_product, engineering
04
No Mac Mini, no laptop agent. Jeremy Adams runs his personal AI agent on an old Raspberry Pi he wears around his neck. Jeremy Adams, senior developer advocate at Neo4j, assembles a wearable AI agent live on stage: NanoClaw on a Raspberry Pi 4B, messaged over WhatsApp, with Docker-isolated agents and a Neo4j graph database. He shows how he built graph memory using the POLE schema (person, object, location, event) mid-flight, added voice-to-text through a USB mic and a hardware button, ran an offline mode with a local Neo4j, and walked the AI Engineer expo floor turning booth notes into a graph
agent, ai_product, engineering
05
Models became agents, and the APIs didn't keep up. Google DeepMind rebuilt them. Ivan Leo, developer experience engineer at Google DeepMind, introduces the Gemini Interactions API and Managed Agents. He traces how we went from single completions to function calling to agents, then shows server-side state with interaction IDs (no more hand-managing thought signatures), strongly typed multimodal outputs, mixing built-in and custom tools, and the new steps data model. He then demos Managed Agents, which run the Antigravity harness in a persistent remote sandbox with environment IDs, loadable sou
agent, ai_product, engineering
07
Across thousands of GPUs, hardware failures are guaranteed. Fixing them by hand at 3 a.m. doesn't scale. Connor Guerrero, Young Jeong and Nikhil Gupta from Crusoe explain why they built Managed Slurm on top of Kubernetes. Slurm gives researchers gang scheduling, topology awareness and familiar sbatch workflows, but falls short on dynamic resources, node health and observability. Kubernetes fills those gaps without either team changing how it works. They walk through AutoClusters' fully automatic remediation of an XID 79 GPU failure, then demo killing a GPU mid-training and resuming from check
agent, ai_frontier, ai_product, engineering
08
Humans don't respond in 200 milliseconds. Your agent shouldn't fall over waiting for one. Melanie Warrick from developer relations at Temporal shows how to build human-in-the-loop agents that don't block or lose state. Using a live multi-agent ice cream delivery demo with fleet, customer and dispatch agents on Google ADK and LangGraph, she explains why durability belongs in the agent harness and how Temporal's workers, workflows and activities track state. She shows how two primitives, a wait condition and a signal, let an agent pause for a human for minutes or weeks. Then she kills the worke
agent, ai_product, engineering
09
Shoppers are moving from typing keywords to describing what they need, and agents are doing the searching. Nixon Dinh, director of product for agentic commerce at PayPal, explains how shopping is moving from the search era to the intent era and then the delegation era, and why product catalogs built for keyword SEO aren't ready for AI agents. He breaks down keyword vs semantic search and shares the results of PayPal's experiments enriching merchant product data. Enrichment consistently improved agent recommendations and thin catalogs gained the most, but over-enriching with unstructured boile
agent, ai_product, engineering, market
10
Claude Code can make the change. But what if you have 90,000 repositories to make it in? Dan Adler, CEO of Sourcegraph, makes the case for the people who own the huge, decades-old codebases that run banks, cars and airlines. Coding agents are producing a tidal wave of code, and those codebases are starting to decay through duplicated code, drifting standards, brittle dependencies and new vulnerabilities. Agents understand code by searching, but you can't grep what you can't see. Dan argues that large-scale code visibility is infrastructure, and introduces Sourcegraph's Agentic Batch Changes f
agent, ai_product, engineering
12
This agent starts with zero tools. Ask it for something it can't do, and it writes the tool and uses it without restarting. Sandhya Subramani, senior developer advocate for GenAI at AWS, demos meta-tooling with the open-source Strands Agents SDK. That means agents that write, load and use their own tools at runtime, and even spin up their own sub-agents. All it takes is a system prompt describing what a good tool looks like, plus three tools: editor, shell and load_tool. She walks through agentic patterns (swarm, graph, handoff, workflow), demos a travel planner that builds its own sub-agents
agent, ai_product, engineering
08

Papers

01
FERPO 针对在线强化学习中 critic 梯度不可靠导致的策略更新不稳定问题,提出不求 critic 对 action 的梯度,而是通过 entropy 与 KL 正则化得到目标动作分布,再用前向 KL 与自归一化重要性采样拟合 actor。这种做法鼓励多模态探索,在 MuJoCo 和 ManiSkill 上表现出更高的样本效率和更快的策略更新,对需要稳定、高效探索的 Agent 开发具有参考价值。
03
多模态模型在复杂交互环境中缺乏长程视觉记忆和主动检索能力。VISTA 提供无损视觉记忆并能主动检索重组视觉输入,使模型获得长程视觉。在ARC-AGI-3上,它把Claude Opus 5.0的人类行为效率从40.68提升到100,动作减少57%,且易迁移到其他视觉游戏。
04
SILSA解决高分辨率3D生成中体素碎片化导致的拓扑不一致与高计算成本问题。它用三轴重叠滑动窗口切片表示形状,搭配Slice VA E与拓扑监督,实现单阶段流式生成。相比基准,显著降低token使用量、训练显存和推理时间,同时提升细节与连通性保真度。
05
ScholarCatalyst 构建了作者标注的灵感文献基准,给定起步研究问题,要求从项目开始前的文献中检索能激发新工作的论文。实验表明嵌入检索和 agentic 检索表现均低于 0.5 Recall@20,凸显模型缺乏专家直觉,亟需新训练方案以造就能自主寻找先驱思路的科学代理。
06
扩散Transformer每步复用同一条件嵌入,限制对噪声状态的自适应。本文提出NEPA,训练Transformer一次预测整条嵌入序列,并在去噪每步用这些预测嵌入重新条件DiT生成器。实验表明NEPA‑DiT‑XL在ImageNet 256上FID达1.32,仅需约REPA三分之一的训练算力。
07
RPG 从离线数据中提取操作能力,在仿真中造练习任务,用执行反馈、特权状态和数据视频诊断失败,生成新符号技能、优化旧技能并修改系统提示;跨任务评估后,多模态大模型在测试时用得到的提示与技能库协调感知与控制,使22项保持任务成功率从28.6%升至95.0%,超越ASPIRE等基线;真实硬件校准后,冻结系统在30次试验中全成功。无需更新权重即可自我改进,对Agent/AI产品工程有参考价值。