1. Claude 4 (www.anthropic.com)
Discover Claude 4's breakthrough AI capabilities. Experience more reliable, interpretable assistance for complex tasks across work and learning.
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Discover Claude 4's breakthrough AI capabilities. Experience more reliable, interpretable assistance for complex tasks across work and learning.
More information about the end of support for Pocket.
We are excited to announce the public preview of the brand-new PostgreSQL extension for Visual Studio Code (VS Code), designed to simplify PostgreSQL...
At the Linux Application Summit (LAS) in April, Sebastian Wick said that, by many metrics, Flat [...]
A blog about making culture. Since 1999.
Terms and Endearment - Yemenia Expat Contract: Full Info - A carrier which is very rarely mentioned on here, I’m going to give you an insight into what it is like to work for them under one of those famous expat contracts that have floated about here and there in the past. I understand 99% of you will see the advert
The Legit research team unearthed vulnerabilities in GitLab Duo.
Can we have a calendar that combines the convenience of a digital calendar with the simplicity and expressivity you get from pen & paper?
We’ve got an important update for the Glitch community today: We’ll be ending web hosting for your apps on Glitch.
Contribute to notactuallytreyanastasio/genstage_tutorial_2025 development by creating an account on GitHub.
What I do know is this. I have never met, nor do I ever expect to meet, a philosopher as fascinating as Alasdair MacIntyre.
Get the main content of any page as Markdown. Contribute to kepano/defuddle development by creating an account on GitHub.
How many molecules from Caesar’s last breath do we inhale with each breath we take? Shockingly, the answer is about one molecule—we actually do share breaths...
The Internet Archive has launched a new livestream on YouTube that captures the process of digitizing microfiche — complete with lo-fi beats.
该文章针对加载大型JSON文件到Pydantic模型时内存占用过高的问题,提出了两种优化方案。
使用Pydantic默认的 model_validate_json() 方法解析一个100MB的JSON文件时,峰值内存占用约为文件大小的20倍(约2000MB),这对处理大规模数据构成挑战。
为降低内存占用,文章从两个层面进行优化:
采用流式JSON解析器 (ijson)
ijson 增量式解析JSON,避免一次性将整个文件加载到内存中,而是逐键值对流式读取。使用带__slots__的数据类
__slots__ 可以固定属性列表,从而显著减少每个实例的内存开销。BaseModel 改为使用 pydantic.dataclasses 并开启 slots=True 选项。同时,解析代码需相应调整,使用 ijson 流式解析并手动构建数据类实例。ijson 和 slots,峰值内存占用进一步降低至450MB。| 方法 | 峰值内存占用 (MB) |
|---|---|
Pydantic model_validate_json() |
2000 |
仅使用 ijson 流式解析 |
1200 |
使用 ijson + 带 slots 的数据类 |
450 |
尽管Pydantic官方尚未集成这些优化,但用户可以通过自行组合 ijson 和 dataclass(slots=True) 来大幅降低处理大型JSON文件时的内存消耗。
在2025年Stripe Sessions的开幕主题演讲中,Patrick Collison分享了一个关键数据:2024年,Stripe平均每天完成1,145个拉取请求,且这些请求都已完全部署到生产环境。与此同时,其API在全年的不可用时间少于一分钟。
Stripe目前拥有约8,500名员工,其中约40%为工程师。据此估算,平均每位工程师大约每3天就能向生产环境交付一次变更。考虑到Stripe在2024年处理了高达1.4万亿美元的支付交易量,这一工程效率尤为引人注目。
根据谷歌发布的DORA 2024研究报告,顶尖的软件交付表现意味着“每日多次部署”且失败率低于5%。仅凭上述指标,Stripe无疑属于顶尖交付表现者的前1%。
在如此庞大的规模下,能实现并维持这样的交付速度和可靠性,体现了其在自动化测试、持续部署与回滚、系统可观测性、代码所有权管理等方面的重大投入和高级工程文化。行业观察指出,Stripe拥有一种要求严苛但极为先进的工程文化。
其核心启示在于,目标并非单纯追求数字,而是消除阻碍快速交付用户价值的摩擦。这反映了对工程文化的正确构建:信任变更、提供必要的工具支持、赋予工程师自主权,并持续专注于为用户交付价值。
The next time you pick up a bag of spuds from the supermarket or fill up the car with petrol, you can thank a treaty signed in 1875 for the metric system that underpins daily life.
Imagine slipping on a pair of contact lenses and suddenly being able to see infrared light—without any bulky equipment or even a battery. That’s now a reality thanks to breakthrough lenses developed by scientists that convert invisible infrared into visible colors. Mice tested with the lenses nav
Listen now | Scaling reinforcement learning, tracing circuits, and the path to fully autonomous agents
Bell Labs’ pioneering CMOS chip BELLMAC-32 is an IEEE Milestone
Everyone’s been talking about it. JD Vance read it. What does it actually tell us?
核心问题: 关系数据(存储在数据库中的多表结构)是极具价值的信息资产,但当前人工智能浪潮主要惠及非结构化数据(如文本、图像)。针对关系数据的预测任务,从业者仍依赖传统机器学习,需要为每个数据集和任务构建特定模型,耗时费力。
解决方案:KumoRFM 是一个为关系数据预测任务构建的基础模型,它能够直接在关系数据库上进行准确预测,而无需针对特定数据或任务进行训练。
任务定义与输入:
核心创新:上下文学习:
架构设计:
通过在涵盖七个领域、30个预测任务的 RelBench 基准上进行评估,KumoRFM 展现出以下优势:
结论: KumoRFM 将预训练、上下文学习和关系图推理整合到一个统一的基础模型中,为结构化数据的预测建模开辟了新路径。它能够在最小化工作量的情况下实现实时预测,为驱动更快速、更智能的业务决策铺平了道路。
Young artists find a new way to resist the impermanence of modernity.