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New
The latest blog posts to take off on Hacker News. 4,224 posts.
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Lepton image compression: saving 22% losslessly from images at 15MB/s
Dash knows your context, your team, and your work, so your team can stay organized, easily find and share knowledge, and keep projects secure, all from one place.
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Bayesian Machine Learning Explained
So you know the Bayes rule. How does it relate to machine learning? It can be quite difficult to grasp how the puzzle pieces fit together - we know …
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Jepsen: VoltDB 6.3
In the last Jepsen post, we found that RethinkDB could lose data when a network partition occurred during cluster reconfiguration. In this analysis, we’ll show that although VoltDB 6.3 claims strict serializability, internal optimizations and bugs lead to stale reads, dirty reads, and even lost updates; fixes are now…
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A beginners guide to thinking in SQL
In this tutorial we will learn about the concepts behind the SQL syntax. We will go through the basics of how to use the FROM and WHERE clauses, and move on to more advanced topics like joins, aggregations and subqueries.
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Pokémon GO: The Data Behind America’s Latest Obsession
Similarweb's blog is a go-to resource for digital professionals and marketing experts offering a wide range of business tips, industry insights, trends and more.
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Generating Recommendations at Amazon Scale with Apache Spark and Amazon DSSTNE
In this post, I discuss an alternate solution; namely, running separate CPU and GPU clusters, and driving the end-to-end modeling process from Apache Spark.
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Realtime Data Processing at Facebook
Recently there has been a lot of development in realtime data processing systems, including Twitter's Storm and Heron, Google's Millwheel, a...
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Pocket Watch: Verifying Exabytes of Data
Dash knows your context, your team, and your work, so your team can stay organized, easily find and share knowledge, and keep projects secure, all from one place.
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Etcd v3: increased scale and new APIs
No single cloud fits all. Explore how we build a more flexible future with hybrid cloud.
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RethinkDB 2.1.5 performance and scalability
This report describes a recent effort that the RethinkDB team took to measure our database product, RethinkDB, under different workloads and in different clustering configurations. We seek to provide a general overview of RethinkDB’s performance metrics for a variety of workloads and potential use cases. In this…
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Jepsen: Crate 0.54.9 version divergence
In the last Jepsen analysis, we saw that RethinkDB 2.2.3 could encounter spectacular failure modes due to cluster reconfiguration during a partition. In this analysis, we’ll talk about Crate, and find out just how many versions a row’s version identifies.
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Inappropriate Uses of Google Trends
Alternatively titled ‘Be aware of context, and maybe start using Google AdWords’ Instead
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What ORMs have taught me: just learn SQL (2014)
I’ve come to the conclusion that, for me, ORMs are more detriment than benefit. In short, they can be used to nicely augment working with SQL in a program, but they should not replace it.
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ArangoDB 3.0 Release – A Solid Ground to Scale
The only enterprise AI data platform that cuts complexity, reduces costs, and gets you to production faster.
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Time-travel queries in CockroachDB
We have added a new feature: time-travel queries. To our knowledge, we are the first database to have implemented the them.
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Numerai, a hedge fund built by a community of anonymous data scientists
On February 27th 2016, an artificial intelligence named NCVSAI joined Numerai. His creator downloaded encrypted stock market data, trained…
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One Year as a Data Scientist at Stack Overflow
One day in January 2013 I found myself wasting time on the internet.
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We’re pretty happy with SQLite and not urgently interested in a fancier DBMS
Every once in a while, someone suggests that beets should use a “real database.” I think this means storing music metadata in PostgreSQL or MySQL as an alternative to our current SQLite database. The idea is that a more complicated DBMS should be faster, especially for huge music libraries.
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Osm-p2p: a peer-to-peer distributed OpenStreetMap database
Digital Democracy is now Awana Digital
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What is Differential Privacy?
Yesterday at the WWDC keynote, Apple announced a series of new security and privacy features, including one feature that’s drawn a bit of attention — and confusion. Specifically, Apple …