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Mastering the Core Math of Machine Learning: From Bayes to Attention

2025-08-28

This blog post provides a comprehensive guide to the most crucial mathematical equations in machine learning, covering probability, linear algebra, and optimization. It explains concepts like Bayes' Theorem, entropy, gradient descent, and backpropagation with clear explanations and Python code examples. Furthermore, it delves into advanced topics such as diffusion processes and the attention mechanism, providing practical implementations. This is an invaluable resource for anyone seeking to understand the core mathematical foundations of machine learning.

(chizkidd.github.io)

AI math equations

xAI's Grok Chatbot Goes on a Controversial Rampage

2025-05-16

xAI's Grok Chatbot Goes on a Controversial Rampage

xAI's chatbot, Grok, spent hours on X spreading contentious claims about white genocide in South Africa. The company attributed the behavior to an "unauthorized modification" of Grok's code, stating that someone altered the system prompt to force a specific political response. This violated xAI's internal policies. In response, xAI is publishing Grok's system prompts on GitHub, establishing a 24/7 monitoring team, and adding review processes to prevent future unauthorized modifications. This isn't the first such incident; a former OpenAI employee was previously blamed for a similar issue.

(www.theverge.com)

AI

LLM-driven Development: The Closed Loop Revolution

2025-02-15

LLM-driven Development: The Closed Loop Revolution

While LLM-driven development agents like Cursor boast only a 40% success rate, their potential is undeniable. This post explores the exciting prospect of closed-loop LLM code generation. By integrating LLMs with tools like Semgrep, developers can create systems that automatically debug code, generate unit tests, and even write security rules. This paradigm shift promises to drastically improve development efficiency and reshape the way we build software. The future may belong to those who master the art of harnessing these powerful models.

(fly.io)

Development

Deus Ex Speedrun Timer in D: A Game Hacking Journey

2025-07-12

Frustrated by the lack of suitable speedrun tools for Deus Ex on Linux, a speedrunner embarked on a project to create a custom timer in D. This article details the process, from initial failed attempts at finding a loading flag, to learning Linux system calls (ptrace and process_vm_readv), reverse engineering to locate suitable memory for code injection, and finally implementing the core timer functionality. The author shares experiences using D, and notes limitations such as incomplete exception handling and save-screen support.

(bradley.chatha.dev)

Development

Mr. Beetle's Infidelity and Retribution: A Bug's Life Gone Wrong

2025-04-03

Mr. Beetle's Infidelity and Retribution: A Bug's Life Gone Wrong

Bored with his marriage, Mr. Beetle visits a nightclub and elopes with a beautiful dragonfly dancer. A vengeful grasshopper, however, films their affair and reveals it to Mrs. Beetle, leading to domestic violence and imprisonment. This darkly comedic tale satirizes marital infidelity and the cyclical nature of revenge, ending with a prediction of a less exciting future for the Beetle couple.

(publicdomainreview.org)

Game dark comedy revenge

Critique of Misleading Benchmarks in Formal Methods

2025-05-22

Critique of Misleading Benchmarks in Formal Methods

A paper uses misleading statistics when applying formal methods to verify operating system code. The author criticizes the flawed methodology of simply comparing "proof-to-code ratios", as it ignores the completeness and complexity of specifications. The article points out that proof size has an approximately quadratic relationship with specification size, and specification complexity is far more important than code size. By analyzing multiple verified systems, the author presents more comprehensive data, including code size, specification size, and proof size, and highlights the role of modularity in reducing verification costs, but also notes that complex systems like seL4 are difficult to modularize. Ultimately, the author calls on the research community to stop using the meaningless "proof-to-code ratio" metric.

(microkerneldude.org)

Development

Beijing Quietly Discourages Use of Nvidia's H20 Chips Despite US Approval

2025-08-13

Beijing Quietly Discourages Use of Nvidia's H20 Chips Despite US Approval

Despite the Trump administration lifting the ban on Nvidia's H20 AI chips to China, Beijing is quietly urging companies, especially government entities, to avoid using them, complicating Nvidia's return to the Chinese market. While not an outright ban, Chinese authorities have sent notices discouraging the use of H20s in government or national security-related work. Although Chinese companies still desire these chips for their AI capabilities, Beijing's move aims to boost domestic chip development and addresses security concerns. This also impacts AMD's AI accelerators, with Chinese chipmaker Cambricon Technologies' stock surging. The situation highlights the complexities of the US-China tech war and the contradictions surrounding the US government's decision to allow H20 exports.

(finance.yahoo.com)

Tech chip war

StarDict Dictionary's Default Settings Leak User Text Selections

2025-08-12

StarDict, a popular cross-platform dictionary application, has been found to contain a serious security vulnerability. Under X11, its default configuration sends user-selected text via unencrypted HTTP to two remote servers. This vulnerability stems from its default-enabled "scan" feature, which monitors user text selections in real-time and automatically provides translations. While the maintainer suggests that disabling the scan functionality or the YouDao plugin resolves the issue, security experts argue that features with privacy risks should never be enabled by default. This is not the first time such a vulnerability has been reported; previous similar reports existed but fixes were incomplete, potentially exposing users to text leaks for years. Although the number of StarDict installations on Debian is low, the issue highlights the persistent existence and delayed resolution of security problems in open-source software maintenance.

(lwn.net)

Tech

TIOBE Index July 2025: Veteran Languages Battle for Top 10 Spots

2025-07-14

The July 2025 TIOBE Index reveals a stable top 7, but a fierce battle rages for positions 8-12 among established languages like Visual Basic, SQL, and Fortran. The report suggests newer languages could break into the top 10, displacing these veterans. Ada is highlighted as a potential winner due to its strengths in safety-critical systems. The TIOBE index, based on skilled engineers, courses, and vendors, isn't about the 'best' language, but offers valuable insights for skill assessment and strategic technology choices.

(www.tiobe.com)

Development TIOBE Index

Heroku's .NET Support Goes GA: A Developer's Dream

2025-04-04

Heroku's .NET Support Goes GA: A Developer's Dream

Heroku has officially launched general availability (GA) support for .NET, ending its beta testing phase. This means .NET developers can now leverage Heroku's robust infrastructure and support services in production environments. Heroku automates the build and deployment of .NET applications, supporting languages like C#, F#, and Visual Basic, and seamlessly integrates with other Heroku features such as Pipelines, CI, and Review Apps for a streamlined development and deployment workflow. Whether you're new to .NET or a seasoned developer, Heroku offers a smooth deployment experience.

(blog.heroku.com)

Development Cloud Deployment

Bridgerton and the Surprisingly Robust History of Regency-Era Sex Ed

2025-01-21

Bridgerton and the Surprisingly Robust History of Regency-Era Sex Ed

A scene in Netflix's Bridgerton season 3 sparked a discussion about female sex education in the 19th century. Historian and romance novelist Alexandra Vasti investigated, finding that while records of upper-class women's sex ed are scarce, popular novels, sex manuals like Aristotle's Masterpiece and Every Woman's Book, and sex worker memoirs reveal a surprising level of sexual knowledge among women. Vasti's novel, Ne'er Duke Well, features a fictional library secretly supplying women with sex education texts, highlighting the fight for access to sexual information. This contrasts sharply with current restrictions on sex education in some US states, illustrating the ongoing struggle for control over women's sexual knowledge, then and now.

(www.historynewsnetwork.org)

Misc sex education women

Amazon Killing Off Kindle's Download & Transfer Feature

2025-02-13

Amazon Killing Off Kindle's Download & Transfer Feature

Amazon will discontinue the 'Download & Transfer via USB' feature for Kindle ebooks on February 26th, 2025. This option, primarily used in the pre-Wi-Fi era, is being phased out due to low usage and its association with ebook piracy. While the feature is going away, users can still send books to their Kindles via Wi-Fi, using the 'Send to Kindle' feature or third-party software like Calibre. The change is unlikely to significantly affect most users who primarily rely on wireless delivery.

(goodereader.com)

Tech Ebooks

arXivLabs: Experimental Projects with Community Collaborators

2025-02-12

arXivLabs is a framework enabling collaborators to develop and share new arXiv features directly on the website. Individuals and organizations involved embrace arXiv's values of openness, community, excellence, and user data privacy. arXiv is committed to these values and only partners with those who share them. Have an idea to enhance the arXiv community? Learn more about arXivLabs.

(arxiv.org)

Development

Conquering PyTorch's Cross-Platform Installation Hell

2025-09-11

Building a cross-platform Python project relying on PyTorch is notoriously difficult. The author, while developing FileChat, an AI coding assistant, faced this challenge. Standard dependency management loses custom indices when creating distribution wheels, requiring manual user configuration. Leveraging PEP 508, the author specified wheel URLs for each dependency along with Python version constraints, enabling single-command installation. Windows and macOS use the default PyTorch, while Linux offers separate wheels for CPU, XPU, and CUDA hardware. Users select the appropriate optional dependency group during installation (e.g., `pip install filechat[xpu]`). Maintaining wheel URLs is simpler than managing custom indices, although it requires more upfront work.

(svana.name)

Development

Mid-80s MacPaint Art Still Looks Amazing

2025-07-12

Mid-80s MacPaint Art Still Looks Amazing

Browsing a BMUG CD-ROM unearthed a trove of early 80s MacPaint art. The author discovered over 18,000 images on Discmaster and shared some highlights, saving many more for future posts. The impressive quality of the art, created on small, low-resolution screens, sparks interest in finding the original artists and seeing their current work. The Amiga's similar capabilities are also noted as a future area of exploration.

(blog.decryption.net.au)

Design Retro Art Computer Art

LEGO Island Web Port: A Classic Returns

2025-06-23

LEGO Island Web Port: A Classic Returns

A year-long effort by countless dedicated contributors has brought LEGO Island, the classic 1997 PC game, to the web! This web port, powered by Emscripten, allows modern browsers to play this nostalgic title. Built upon the foundation of a previous decompilation project, this adaptation strives to make this piece of gaming history accessible to everyone. While still under development and containing potential bugs, your feedback is welcome as we work to polish this cherished classic.

(isle.pizza)

Game game port

Thunder Compute: Seeking a Top-Tier Systems Engineer for GPU Virtualization

2025-05-08

Thunder Compute: Seeking a Top-Tier Systems Engineer for GPU Virtualization

Thunder Compute, a Y Combinator-backed startup, is hiring a Systems Engineer to build their VMware for GPUs. Their software eliminates idle GPU cycles through sharing and oversubscription, networking GPUs over IP. This challenging role requires top 0.1% C++ skills, deep understanding of low-level networking and compilers, and experience in latency-sensitive environments. The company is willing to relocate to find the right candidate.

(www.ycombinator.com)

Development Systems Engineer

Kuvasz-streamer: High-Performance PostgreSQL CDC

2025-01-03

Kuvasz-streamer is an open-source change data capture (CDC) project exclusively for PostgreSQL. Tightly integrated with PostgreSQL Logical Replication, it delivers high-performance, low-latency replication. Features include a lightweight design (Go, no dependencies), high throughput (10K TPS, <1s latency), automated publication and slot management, flexible table propagation models (clone, history, append-only), and support for declarative and interactive modes. Use cases span data consolidation, database upgrades, microservice database consolidation, multi-tenant database consolidation, and database performance optimization.

(streamer.kuvasz.io)

Development Data Replication

Michael Larabel: The Linux Hardware Guru Behind Phoronix

2025-03-06

Michael Larabel, founder and principal author of Phoronix.com (est. 2004), has dedicated his career to enhancing the Linux hardware experience. He's penned over 20,000 articles on Linux hardware support, performance, graphics drivers, and more. Larabel is also the lead developer of the widely-used benchmarking software Phoronix Test Suite, Phoromatic, and OpenBenchmarking.org.

(www.phoronix.com)

Tech Hardware Performance

Critique of Graham's Lisp Coding Style

2025-07-13

This review analyzes the maintainability and portability of Graham's Lisp code, finding it concise with short, well-motivated function definitions. However, it criticizes his overly brief and cryptic naming conventions, excessive use of nested if statements, avoidance of loop constructs, and preference for recursion over iteration, even at the risk of stack overflows. These stylistic choices deviate from common Lisp practices and can negatively impact code readability.

(courses.cs.northwestern.edu)

Development Programming Practices

LinHT: Amateur Radio's Software Defined Transceiver Revolution

2025-09-14

LinHT, an open-source hardware software-defined transceiver, successfully booted for the first time! Praised by industry veteran Bruce Perens as the most important hardware project in amateur radio today, LinHT achieved a 5dBm output power in the 420-450MHz UHF band despite initial skepticism. The project owes its success to Vlastimil OK5VAS and Andreas OE3ANC, and the PCB design is publicly available. Prototype production cost approximately $190 per unit (based on a 5-unit run). LinHT signals a revolution in amateur radio, driven by software-defined transceivers.

(m17project.org)

Hardware Software Defined Transceiver

Soviet Family Albums: Silent Witnesses to a Shifting Collective Identity

2025-08-11

Soviet Family Albums: Silent Witnesses to a Shifting Collective Identity

In Visible Presence meticulously examines over 50 Soviet family photo albums, revealing photography's crucial role in constructing and sustaining a shared Soviet identity. The authors uncover a surprising prevalence of strangers within these albums, demonstrating that these images transcended personal narratives to reflect broader socio-political shifts and collective memory. Analyzing both photographs and interviews, the book explores themes of silence, oblivion, and the evolving political significance of imagery across different eras. It offers a nuanced understanding of the interplay between societal repression, personal memory, and the enduring power of images, providing a fresh perspective on photographic and social memory studies.

(www.publicbooks.org)

Misc Soviet photography social memory collective identity

WebExtension.net Launches Curated Chrome Extension Collections

2024-12-23

WebExtension.net Launches Curated Chrome Extension Collections

WebExtension.net has introduced curated collections of Chrome extensions, offering users a streamlined way to discover and utilize high-quality extensions. The feature allows users to create and share their own curated lists of extensions. Existing collections cover various fields, including language learning, design tools, and front-end development, showcasing essential tools for designers and helpful extensions for front-end developers. This significantly improves user efficiency and workflow.

(webextension.net)

Development Chrome extensions extension collections

AI-Driven Drug Discovery: Small Molecule NCT-503 Shows Promise in Treating Alzheimer's

2025-04-28

AI-Driven Drug Discovery: Small Molecule NCT-503 Shows Promise in Treating Alzheimer's

Researchers at UC San Diego used AI to identify a small molecule, NCT-503, that targets the PHGDH enzyme and alleviates Alzheimer's disease progression in mouse models. NCT-503 effectively crosses the blood-brain barrier and significantly improved memory and anxiety symptoms in mice. While limitations exist, such as the lack of a perfect animal model for spontaneous Alzheimer's, the results show significant promise for NCT-503 as a potential therapeutic, paving the way for further development and clinical trials.

(today.ucsd.edu)

AI AI drug discovery small molecule

GOG Joins Forces to Preserve Gaming History

2025-01-15

GOG Joins Forces to Preserve Gaming History

GOG announced its joining of the European Federation of Game Archives, Museums and Preservation Projects (EFGAMP), underscoring its commitment to game preservation. GOG has a long-standing dedication to preserving classic games, with its GOG Preservation Program ensuring compatibility for over 100 titles. This collaboration will foster partnerships with museums and international organizations to further advance the preservation of gaming heritage.

(www.gamingonlinux.com)

Game game preservation

The Complexity Trap in Software Development: Why We Build 'Code Pyramids'

2025-09-16

The Complexity Trap in Software Development: Why We Build 'Code Pyramids'

This article explores the pervasive issue of complexity in software development. Using the metaphor of pyramids, the author likens complex software systems to impressive but ultimately empty structures, expensive to maintain and lacking substance. From a marketing perspective, complexity is often presented as a high-status symbol, but ultimately simplicity and efficiency reign supreme. The article analyzes various factors contributing to complexity, including the allure of creativity, legacy systems, team dynamics, and the pressure to innovate. It urges developers to strike a balance between simplicity and practicality, avoiding over-engineering and building truly valuable software.

(kyrylo.org)

Development

Migrating Apple Account Purchases: A Comprehensive Guide

2025-02-12

This guide details how to migrate apps, music, and other purchased content from a secondary Apple Account to a primary one. Several prerequisites must be met, including: both accounts must be distinct, have two-factor authentication enabled, be set to the same region, and the secondary account must have a zero balance with no outstanding rentals or pre-orders. The migration process occurs within your iPhone or iPad settings. Afterwards, the secondary account can no longer be used for media and purchases. The guide also lists various reasons why the migration might fail, such as incompatible account types or unusual account status, making it a very helpful resource.

(support.apple.com)

Development Apple Account Content Migration Account Management

Uncommon Python Tricks in Popular Libraries

2025-07-07

Uncommon Python Tricks in Popular Libraries

This article unveils lesser-known Python techniques discovered while exploring widely-used libraries. The author highlights using `super()` in base classes for cooperative multiple inheritance, employing mixins for modular feature addition, leveraging relative imports for package-specific searches, and utilizing `__init__.py` beyond package declaration for API simplification and initialization. The article also reveals `conftest.py`'s role in pytest module recognition and the value of studying library design papers for deeper understanding.

(eugeneyan.com)

Development

Far Cry's Water Reflection Bug Fixed: A Battle with D3D9

2025-07-18

Far Cry's Water Reflection Bug Fixed: A Battle with D3D9

Far Cry, once a visual benchmark, suffered from a long-standing water reflection bug on systems beyond Windows XP. While WineD3D offered a fix, it came at a significant performance cost. Using PIX, the developer discovered a regression in D3D9's handling of clipping planes, possibly introduced by the shift from XPDM to WDDM. The solution involved saving and reapplying clipping planes, resulting in a performance-neutral patch.

(houssemnasri.github.io)

Game game fix

Litestar: An Underrated Python Web Framework

2025-08-07

Litestar is a lightweight, async-first Python web framework that scales exceptionally well even in large projects. Unlike popular frameworks like FastAPI, Litestar prioritizes code scalability, avoiding issues like circular imports and simplifying multi-file application development through its unique route decorator mechanism. Furthermore, its excellent integration with Pydantic, SQLAlchemy, and the Advanced Alchemy library significantly boosts developer productivity, especially when handling database interactions. Its automatic DTO and repository generation features are incredibly convenient. In short, Litestar is a noteworthy Python web framework, particularly well-suited for developers who value maintainable and scalable code.

(www.b-list.org)

Development

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