This article is a short introduction into programming Hadoop using Clojure language. Introduction The Hadoop is free implementation of infrastructure for scalable, distributed computing. It was started as implementation of ideas of MapReduce and GFS, that was introduced by Google, but later, many different projects were included into it. Hadoop is actively used by many projects, including commerci
I gave a rather messy lightning talk at the recent ECLM on this topic (see below). I think, the messiness can be attributed mostly to my undesire to criticize anything, built with good intentions, including Clojure. Yet in software development there's clearly a need for thorough evaluation of different approaches, languages and technologies, because, we must admit, lots and lots of decisions on su
Posted in Clojure, Lush, tools by Scott Locklin on November 30, 2011 If this isn’t a Zawinski quote, it should be. I have avoided the JVM my entire life. I am presently confronted with problems which fit in the JVM; JVM libraries, concurrency, giant data: all that good stuff. Rather than doing something insane like learning Java, I figured I’d learn me some Clojure. Why not? It’s got everything I
This post is the first of what I hope will become a series about Clojure. Clojure is a young language, and though there is a lot of documentation already on the Internet and in the blogs of many enthusiasts, I figured there would be no harm in having some more. In this series, I will start with a simple script and with each post, I will improve the program by introducing new Clojure features. The
The term “web3” seems pretty fluid and is being used as a label for a bunch of disparate ideas. Given that it’s a decentralized group describing a decentralized movement, that lack of focus isn’t exactly surprising. Almost by definition it’s going to end up being different things to different people. Most of the descriptions I’ve seen focus on mechanisms - block chains, smart contracts, tokens, et
Make sure you have leiningen installed, that way we can use the Noir template. You do not have to download anything special to use it, just run the command and leiningen will automatically fetch whatever you need! Three commands later, you've got a working website! Now let's make it do something. Noir uses Hiccup to generate HTML. Hiccup represents html elements as vectors where the first keyword
Fun with Clojure, OpenCV and Face Detection I have been meaning to play with OpenCV for a while now, the other night, I had some time to kill so I decided to play with it. OpenCV is a computer vision library originally developed by Intel. It focuses mainly on real-time image processing. I assumed by now there are a lot of Java libraries for OpenCV but as it turns out there is only one, and it is a
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