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New
The latest blog posts to take off on Hacker News. 4,224 posts.
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How multi-disk failures happen
Having seen this failure mode happen a couple times now, it's time to share. Yes, Virgil, multi-disk failures DO happen during RAID rebuilds. I have pictures, so it MUST be true!First,
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SQL is Agile
Thoughts about why relational databases are not a bad choice when starting a new project.
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Free Data Science Books
I've been impressed in recent months by the number and quality of free datascience/machine learning books available online. I don't mean fre...
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Why MongoDB Never Worked Out at Etsy
In 2010ish, we tried to roll out a feature ( Treasury ) using MongoDB. It was an interesting experience. I learned quite a bit in the process. I wrote about what I was thinking at the time here . But for the most part it was an abject failure and Ryan Young wound up porting the entire thing to the MySQL shards which…
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RethinkDB 1.3 is out, now available on OS X
We’ve released RethinkDB 1.3 ( Metropolis ) which has a large number of enhancements, and adds support for OS X and several other platforms. As of the 1.3 release, the server can now be installed on the following platforms:
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Oracle Surprised by the Present
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532x Performance Increase for MongoDB with fractal tree indexes
XoilacZ - Website Xem Trực tiếp bóng đá hôm nay với bình luận Tiếng Việt. XoilacTV cập nhật link xem bóng đá, lịch thi đấu, bảng xếp hạng, kết quả nhanh nhất
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Mapping Racist Tweets in Response to President Obama's Re-election
Note: for questions about the methodology/approach of this post, see the FAQ (added 16:20 EST 11/9/2012). Note: as of 11:00 EST 11/10/2012...
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How I made $500k with machine learning and high frequency trading
How I made $500k from high frequency trading using machine learning to optimize a trading algorithm for Russell 2000 and DAX futures, trading independently without working for a quant firm.
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Time Spent Waiting for an Answer in StackOverflow (by language)
I use about.me to show people what matters most to me.
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Python for Data Analysis
I recommend using Python for data analysis, and I recommend Wes McKinney's book Python for Data Analysis. I prefer Python to R for mathematical computing because mathematical computing doesn't exist in a vacuum; there's always other stuff to do. I find doing mathematical programming in a general-purpose language is…
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Using python and k-means to find dominant colors in images
I'm working on a little photography website for my Dad and thought it would be neat to extract color information from photographs. I tried a couple of different approaches before finding one that works pretty well. This approach uses k-means clustering to cluster the pixels in groups based on their color. The center…
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EC2 I/O
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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Things I wish I knew about MongoDB a year ago
I’ve used MongoDB for over a year at scale at both Heyzap and Bugsnag and I’ve found it to be a very capable database. As with all databases, there are some gotchas, and here is a summary of the things I wish someone had told me earlier.
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