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R, OpenMP, MKL, Disaster
The answer should be something close to ALPHA , i.e. 0.01 . What R was printing out was weird numbers like 1e-10 .
Topics /
Databases & Data
The most popular blog posts about databases & data on Hacker News. 4,224 posts.
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Denser 3D Point Clouds in OpenSfM
We've improved OpenSfM—the technology we use to create 3D reconstructions from images. By adding post-processing, we get denser 3D point clouds resulting in better visualization, positioning, and much more.
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One night in Uzbekistan: Why was this one data point so influential?
We have a comment coming out in Nature next week that is going to cause the retraction of a high-profile paper by Kotz et al. from last year (the second most cited climate paper in the news in 2024).
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Keeping a Postgres Queue Healthy
Dead tuples from high-churn job queues can silently degrade your Postgres database when vacuum falls behind—especially alongside competing workloads. Traffic Control keeps cleanup on track.
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Rerun 0.9 – a framework for visualizing streams of multimodal data
We're releasing Rerun 0.9.0 with a completely revamped API that gives more control over the underlying data model, a hierarchical and time aware Entity Component System (ECS).
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Scraping data from an app: real world example
How to inspect the network traffic of an app with Fiddler Everywhere and scrape the data from its servers.
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Google+ launches ‘Ripples’ visualisation
After what appears to be have been a rapid and widespread take-up of its Google+ social media service, Google has now launched details of its 'Ripples' feature. Significantly, news of the release was made by Fernanda Viegas, one of the most prominent names in the field and co-leader, with Martin Wattenberg, of…
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Jepsen: MariaDB Galera Cluster 12.1.2
MariaDB is a popular open source SQL database which began as a fork of MySQL . MariaDB Galera Cluster is an active-active replication system for MariaDB which allows reads and writes on every node. In 2015 this author analyzed MariaDB with Galera Cluster and found that although Galera claimed to offer Snapshot…
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Osm-p2p: a peer-to-peer distributed OpenStreetMap database
Digital Democracy is now Awana Digital
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Faiss: A library for efficient similarity search
Visit the post for more.
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Fabric Is Just Plain Unreliable, and Microsoft's Hiding It
Update 2025/07/21: Microsoft heard the complaints, and fixed the reliability added a better status page. Baby steps. Last week, Microsoft Fabric went down yet again for hours on multiple continents. Oh, you didn’t hear about it? Let’s talk about why. First, Fabric’s status page is fabricated bullshit. The link…
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Zero-shot learning: Using text to more accurately identify images
WHAT THE RESEARCH IS: Zero-shot learning (ZSL) is a process by which a machine learns to recognize objects it has never seen before. Researchers at Facebook have developed a new, more accurate ZSL …
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How the Native American population changed since the last census
The federal government has counted the Native American population in various ways throughout the years. Recent data shows how the demographic is growing.
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Things I want in a modern relational query language
This was a very old draft I’ve had sitting around for years. The recent discussions of new query languages like Acadia spurred me to revisit, revise, and publish this. I think one of the biggest causes of NoSQL is that… Continue reading →
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Agentic AI systems violate the implicit assumptions of database design
There is an implicit contract at the foundation of every database architecture decision you have ever made. You probably never wrote it down. Nobody does. It just… existed.
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(Some) ORM haters do get it
Daftar slot online di Modus99 dapat menggunakan qris dan menjadi satu-satunya situs paling terpercaya saat ini dengan berbagai jenis bocoran semua provider.
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15k inserts/s with Rust and SQLite (2021)
There is this growing sentiment in tech that stacking more and more layers of complexity to reach the sacrosanct "infinite scalability" is not the way forward. First, because it rarely materializes: you need a lot of other things than fancy tech to reach millions of people. Second, because the tradeoffs
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Our take on RethinkDB vs. MongoDB
Interested in a less biased overview? We encourage you to also read the technical comparison between RethinkDB and MongoDB .
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EdgeDB: A New Beginning
In a few weeks we will release the first public technology preview of EdgeDB—a new open-source object-relational database. This post is a brief introduction and is the first in the series.
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