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Machine Learning 101: An Intro to Utilizing Decision Trees
Stay up-to-date with the latest news, practical tips & best practices from Qlik on data analytics, data integration, data literacy, and big data analytics.
Topics /
Databases & Data
The most popular blog posts about databases & data on Hacker News. 304 posts.
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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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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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PostgreSQL 9.5 Released
Stamp 9.5.0. Branch ------ REL9_5_STABLE Details ------- http://git.postgresql.org/pg/commitdiff/cdd4ed5449bf317cc71b45a8deee0173822e7592 Modified Files -------------- configure | 18 +++++++++--------- configure.in | 2 +- doc/bug.template …
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R, the master troll of statistical languages (2012)
Warning: what follows is a somewhat technical discussion of my love-hate relationship with the R statistical language, in which I somehow manage to waste 2,400 words talking about a single line of …
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How to Become a Data Scientist, Part 2
This is Part Two in a three-part series examining how to become a data scientist. Supported by extensive research and expert opinions, it aims to provide a comprehensive guide to anyone looking to move into this field, irrespective of background and experience. The topic of Part Two is: "Learning".
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When to Avoid JSONB in a PostgreSQL Schema
Heap is the only digital insights platform that shows everything users do on your site, revealing the "unknown unknowns" that stay invisible with other tools.
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Data Mining Hacker News: Front vs. Back
Using Haskell, R, Python, SQLite, and Elasticsearch, we data mine Hacker News front page stories and their back page counterparts for patterns.
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SQL Tricks
Listicles like these do work – not only do they attract attention, if the content is also valuable (and in this case it is, trust me), the article format can be extremely entertaining. This a…
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Feather: A Fast On-Disk Format for Data Frames for R and Python
Introducing Feather: a fast binary file format for data frames that works in both R and Python, built on Apache Arrow.
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Hard Drive Stats for Q2 2016
We take a close look at the hard drive failure rates from 68,813 hard drives that are used in the Backblaze data center.
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Time Series, the new shiny?
If you’ve been fortunate enough to have been studying penguins at McMurdo these last few seasons you may have missed the attention “Time Series” has been getting in the Big Data space. Then again, maybe not. Because if you were doing scientific work whilst snug in your North Face you may have been t
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Data is a Toxic Asset
Thefts of personal information aren’t unusual. Every week, thieves break into networks and steal data about people, often tens of millions at a time. Most of the time it’s information that’s needed to commit fraud, as happened in 2015 to Experian and the IRS. Sometimes it’s stolen for purposes of embarrassment or…
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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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Searching 20 GB/sec: Systems Engineering Before Algorithms (2014)
SentinelOne unifies AI-powered endpoint, cloud, identity, and data protection—enhanced by our Security Data Lake for seamless and efficient cybersecurity.
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Web Scraping to Create Open Data
Web Scraping to Create Open Data - Embrace the power of web scraping in generating open data. Contribute to the open data movement.
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PostgreSQL 9.6 Beta 1 Released
The PostgreSQL Global Development Group announces today that the first beta release of PostgreSQL 9.6 is available for download. This …
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Recreating Our Galaxy in a Supercomputer
A new simulation of our Milky Way galaxy has solved a decades-old mystery.
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Sorry ARIMA, but I’m Going Bayesian
When people think of “data science” they probably think of algorithms that scan large datasets to predict a customer’s next move or interpret unstructured te...
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Billions of Messages a Day – Yelp's Real-Time Data Pipeline
Billions of Messages a Day - Yelp's Real-time Data Pipeline Justin C., Software Engineer Jul 14, 2016 This post is part of a series covering Yelp's real-time streaming data infrastructure....
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Apache Arrow: A new open source in-memory columnar data format
Open source Big Data in-memory columnar layer accelerates analytical processing and interchange by more than 100x. Forest Hill, MD –17 Feb 2016– The Apache Software Foundation (ASF), the all-volunteer developers, stewards, and incubators of more than 350 Open Source projects and initiatives, announced today Apache…
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On Uber’s Choice of Databases
Uber provides bad advice about PostreSQL vs. MySQL