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In this post we’ll get a strong taste for zero knowledge proofs by exploring the graph isomorphism problem in detail. In the next post, we’ll see how this relates to cryptography and the bigger picture. The goal of this post is to get a strong understanding of the terms “prover,” “verifier,” and “simulator,” and “zero knowledge” in the context of a specific zero-knowledge proof. Then next time we’ll see how the same concepts (though not the..
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In this post we’ll get a strong taste for zero knowledge proofs by exploring the graph isomorphism problem in detail. In the next post, we’ll see how this relates to cryptography and the bigger picture. The goal of this post is to get a strong understanding of the terms “prover,” “verifier,” and “simulator,” and “zero knowledge” in the context of a specific zero-knowledge proof. Then next time we’ll see how the same concepts (though not the..
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There is a terrific article in last week’s Sunday Times outlining Netflix’s role in changing the way we consume media. The central question of the piece is whether Netflix will dominate the world it has created. Nimble competitors like Amazon, Hulu, and the major studios (once threatened by streaming) are each leveraging unique assets to disrupt legacy media models. From the article, we at AdRoll gleaned a broader framework for how pr....
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Over the last 100 years we have dialed into radio stations at home, on the road, or in the office to access a curated mix of top hits delivered to us by our favorite DJ. With more and more of our daily activities taking place online, we find our source of music now comes from a mix of our mobile phones, our desktop computers and the radio - and is available to us whenever we need it. The amount of music available today is endless. The music..
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Over the last 100 years we have dialed into radio stations at home, on the road, or in the office to access a curated mix of top hits delivered to us by our favorite DJ. With more and more of our daily activities taking place online, we find our source of music now comes from a mix of our mobile phones, our desktop computers and the radio - and is available to us whenever we need it. The amount of music available today is endless. The music..
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TLDR: Hi WOW Air. Stop not providing free safe drinking water in airplanes. This is a cruel practice, driven by greed. You are endangering your passengers. I endorse your frugal policies to charge for extra baggage and food, but not providing safe water is a crime in my opinion. Right now I am in an airplane of WOW Air. I’ve had a pleasant flight up until 20 minutes ago when I woke up from a nap. I get dehydrated quickly, so I finished th....
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note: This is a follow up post from 2015-07-21-rcd-stonith A Linux Cluster Base STONITH provider for use with modern Pacemaker clusters This has since been accepted and merged into Fedora’s code base and as such will make it’s way to RHEL. Source Code: Github Diptrace CAD Design: Github I have open sourced the CAD circuit design and made this available within this repo under CAD Design and Schematics Related RedHat Bug: http..
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note: This is a follow up post from 2015-07-21-rcd-stonith A Linux Cluster Base STONITH provider for use with modern Pacemaker clusters This has since been accepted and merged into Fedora’s code base and as such will make it’s way to RHEL. Source Code: Github Diptrace CAD Design: Github I have open sourced the CAD circuit design and made this available within this repo under CAD Design and Schematics Related RedHat Bug: http..
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I’ve been using Jetbrains editor (the free Idea community edition) or Pycharm with the Go plugins and very happy with this setup, the editor is providing some realtime linting but I was missing gometalinter. First install gometalinter go get -u github.com/alecthomas/gometalinter gometalinter --install --update To add support inside Jetbrains editors use the External tools feature. In Preferences > Tools > External Tools, add a configuration..
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A Course in Machine Learning (Hacker News) . How to start learning deep learning (Hacker News) . How to start learning deep learning . Machine Learning is Fun! The world’s easiest introduction to Machine Learning . Practical Deep Learning for Coders 2019 (Hacker News) . What are the best ways to pick up Deep Learning skills as an engineer? (Quora) .
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A blog post by the excellent technical people at Netflix about Chaos Engineering and further posts about the subject by Microsoft in Azure Search prompted me to ask the question, What is chaos engineering and how can chaos testing be applied to help me? What is Chaos Testing? First coined by the afore-mentioned Netflix blog post, chaos engineering takes the approach that regardless how encompassing your test suite is, once your code i..
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Deep dive into UIImage thread safety issues and how to properly handle images in concurrent environments.
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I think there is an interesting correlation between being frugal and caring for and improving the natural environment. Thinking about this correlation led me to describe the wealth equation in my previous post Lets be clear. The wealth equation is not an absolute or accurate truth. It is simply a model of the consequences of our actions. I made up this model to give me a framework to think about which actions would improve my well-being ....
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I think that humans, and humanity in general are hard-wired to optimize our decisions for wealth. This has effect on the environment and our relations with each other. Here are a couple of equations I came up with, to help me analyze specific situations in life: wealth increase = + useful need - natural resources fair prices - total seller profit - hidden environment cost monetary cost = + natural resources fair prices + total se....
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Recommender Systems: Content-based, Social recommendations and Collaborative filtering
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blog.fedecarg.com
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9 years ago
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eng
With the proliferation of video on-demand streaming services, viewers face a big challenge: finding content across multiple screens and apps. There may be quality information available online but it may be difficult to find. Traditionally, viewers resort to “app switching” which can be frustrating when it comes to finding quality content. With the emergence of […]
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REST as a concept was introduced by Roy Fielding in his doctoral thesis, named Architectural Styles and the Design of Network-based Software Architectures.
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In the previous post of this series, we discussed the process of and lessons learned from building Redis for the Nextcloud snap. That means we’ve covered all the major pieces except for Nextcloud itself, so for this post that’s what we’ll focus on getting that into the snap. As I mentioned previously, Nextcloud is a PHP application. As such, it’s not difficult to get working with Apache or MySQL. However, it was written in such a way to mak..
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Complete example with variadic templates This is the least viable and one of the most simple examples on how to use C++11 Variadic Templates. This sample has been tested with Microsoft Visual Studio 2015 and GCC 4.7.3. The code is also available at Github This example will use perfect forwarding with variadic templates to create a class wrapper around a structure, which again call the correct constructors in the structure. //=....
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This essay contains SPOILERS for Game of Thrones, season 6 episode 9 x. In this episode we see Jon Snow, the “good guy”, meet Ramsey Bolton, the horrible monster character in battle. The good guy’s army wins by last minute support by the knights of the Vale, and the bad guy is given a gruesome death at the mouths of his hounds, starved for seven days. Viewers get giddy at the death of Ramsay, as Sansa, the girl he had raped and torture....
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In the previous post of this series, we discussed the process of and lessons learned from building MySQL for the Nextcloud snap. The last piece of infrastructure we need to introduce is the memcache, for which we’ll use Redis. Nextcloud supports a number of memcache backends; I chose Redis because it can provide both a local cache as well as file locking, so for this post that’s what we’ll focus on getting into the snap.
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In the previous post of this series, we discussed the process of and lessons learned from building PHP 7 for the Nextcloud snap. Nextcloud supports a number of databases, but they recommend MySQL (the v9 docs that I used when making this decision are lost to the dust of time, but MySQL is still the recommended option in v21), so for this post that’s what we’ll focus on getting into the snap.
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The Missing Git Command: The power of git blame without the blaming
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joshuarogers.net
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9 years ago
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eng
The Worst Thing Ever I know the worst code that I've ever professionally written. It was an overly generic UI component. It managed to combine a total misunderstanding of MVC, heavy constructors, an overly broad interface that leaked abstraction like a sieve, empty methods, liberal use of Object, and was driven by unexceptional-exceptions. Oh, and it couldn't be resized. Not that any of that mattered. Despite all of the odds against it, it ..
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We're removing the Beta tag fromSnyk and adding two long-awaited features: tight GitHub integration and organization support.
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In the previous post of this series, we discussed the process of and lessons learned from building Apache for the Nextcloud snap. Nextcloud is a web application written in PHP, so for this post we’ll focus on getting PHP into the snap. PHP 7, like Apache, is included in the Ubuntu archives. However, I was planning on using the PHP Apache module, and since I was building Apache from source, I figured there’d be a lot of hoops for me to jump ..
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UPDATE 2019-01-16 : In the three years since this article was written, parts of the article, in particular talking about UTF-8 are thankfully no longer accurate. It would appear in a recent update Microsoft has added support for safely reading and writing UTF-8 CSVs to Excel. There is a new format in the save dialog CSV UTF-8 (Comma delimited) which is distinct from Comma Separated Values which is also still in there. In my testing it....
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UPDATE 2019-01-16 : In the three years since this article was written, parts of the article, in particular talking about UTF-8 are thankfully no longer accurate. It would appear in a recent update Microsoft has added support for safely reading and writing UTF-8 CSVs to Excel. There is a new format in the save dialog CSV UTF-8 (Comma delimited) which is distinct from Comma Separated Values which is also still in there. In my testing it....
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Earlier this year, we created a ppx_let , a PPX rewriter that introduces a syntax for working with monadic and applicative libraries like Command, Async, Result and Incremental. We’ve now amassed about six months of experience with it, and we’ve now seen enough to recommend it to a wider audience.
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With more than 125 million tracks from over 12 million creators heard each month on our platform, SoundCloud is uniquely positioned to offer listeners a full spectrum of music discovery. Classic hits, the latest releases, gems from underground talent and the best of what’s up-and-coming – all in one place. How can you make great content discoverable and available at ease? How can you create a unique experience for every single user?
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Earlier this year, we created a ppx_let , a PPX rewriter that introduces a syntax for working with monadic and applicative libraries like Command, Async, Result and Incremental. We’ve now amassed about six months of experience with it, and we’ve now seen enough to recommend it to a wider audience.
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The backbone of any web application is of course the web server, so that’s where I started when snapping Nextcloud. I went with Apache as opposed to Nginx for two reasons: 1) Apache is recommended by Nextcloud (the v9 docs that I used when making this decision are lost to the dust of time, but Apache is still the recommended option in v21), and 2) I’m much more familiar with Apache than Nginx.
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With more than 125 million tracks from over 12 million creators heard each month on our platform, SoundCloud is uniquely positioned to offer listeners a full spectrum of music discovery. Classic hits, the latest releases, gems from underground talent and the best of what’s up-and-coming – all in one place. How can you make great content discoverable and available at ease? How can you create a unique experience for every single user?
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