3871
How Netflix uses Druid for realtime insights
By Ben Sykes
Topics /
Databases & Data
The most popular blog posts about databases & data on Hacker News. 4,224 posts.
3872
Weighting an average to minimize variance
How would you allocate money to a set of independent assets with to minimize volatility if some assets are more volatile than others?
3873
Backblaze Drive Stats for Q1 2021
A look at the quarterly and lifetime failure rates of 175,443 drives, including a comparison of failure rates of HDD and SSD boot drives.
3874
3875
Using the expand and contract pattern for schema changes
In this article, we introduce the expand and contract pattern to help migrate data and clients to a new schema.
3876
3877
Object-recognition dataset stumped the world’s best computer vision models
When computer vision detectors are turned loose in the real world, their performance noticeably drops. In an effort to close this performance gap, a team of MIT and IBM researchers set out to create a very different kind of object-recognition dataset called ObjectNet.
3878
1 Database Containing 35,000,000 Google Profiles. Implications?
UPDATE 2012-02-16: raver1975 released a SQL database w/35M Google Profiles as .torrent on The Pirate Bay. UPDATE 2011-06-10: Central question in the Google discussion is whether mass-aggregation of profile data…
3879
I used Benford’s law to analyze Covid-19 in 113 countries (2020)
Spoiler alert: I found some intriguing patterns…
3880
Macie: Automatically Discover, Classify, and Secure Content at Scale
This blog is out of date. Please refer here for the updated info. When Jeff and I heard about this service, we both were curious on the meaning of the name Macie. Of course, Jeff being a great researcher looked up the name Macie and found that the name Macie has two meanings. It has […]
3881
3882
SQLite 3.39.3
A complete list of SQLite releases in a single page and a chronology are both also available. A detailed history of every check-in is available at SQLite version control site .
3883
Perceptual Image Hashing
Joe Bertolami's portfolio and blog covering artificial intelligence, game development, computer graphics, data compression, and more.
3884
Migrating Messenger storage to optimize performance
More than a billion people now use Facebook Messenger to instantly share text, photos, video, and more. As we have evolved the product and added new functionality, the underlying technologies that …
3885
3886
3887
BERTopic: The Future of Topic Modeling
BERTopic takes advantage of the superior language capabilities of (not yet sentient) transformer models and uses some other ML magic like UMAP and HDBSCAN to produce what is one of the most advanced techniques in language topic modeling today.
3888
Racket vs Clojure (it's all about the data structures)
I've been asked by several people to explain why I use Clojure for my professional work rather than Racket. ABOUT RACKET I have been using R...
3889
Continuous MySQL backup validation: Restoring backups
Visit the post for more.
3890
Batch size one billion: SQLite insert speedups, from the useful to the absurd
A little-discussed method enables inserting rows with bound data into SQLite faster than any existing technique. This novel method is then discovered to have a drawback that makes it generally unusable. The rest of this article explores how to get the best insert performance out of SQLite generally; what's in your…
3891
Dynamo vs. Cassandra: Systems Design of NoSQL Databases (2018)
A comparison of ideas behind Dynamo and Cassandra
3892
3893
Extending That XOR Trick to Billions of Rows
Learn how to extend the classic XOR trick to find thousands of missing values using Invertible Bloom Filters
3894
Product Quantization: Compressing high-dimensional vectors
Product quantization (PQ) is a popular method for dramatically compressing high-dimensional vectors to use 97% less memory, and for making nearest-neighbor search speeds 5.5x faster in our tests.
3895
3896
3897
Web SQL Database: In Memoriam
All signs seem to indicate that Apple will finally ship IndexedDB in Safari 7.1 sometime this year. This means that Safari, the last holdout against IndexedDB,…
3898
Mergeable replicated data types – Part I
Mergeable replicated data types Kaki et al., OOPSLA’19 This paper was published at OOPSLA, but perhaps it’s amongst the distributed systems community that I expect there to be the greatest in…
3899
PostgreSQL needs a new load balancer
We do a lot of high-availablity PostgreSQL deployments for clients. As of 9.1, streaming replication (SR) is excellent for this, and can sc...
3900