Variants are Not Unions
Some of the most confounding design problems occur when a value can be more than one type of thing. Variants, a.k.a. tagged unions, are an elegant solution to this problem that is not supported in an obvious way in Clojure and is not supported in most mainstream languages or databases. I'll demonstrate how and when to use tagged unions in Clojure, including a pattern-matching destructor and use with core.typed and storage in Datomic.
The Clojure ecosystem, we're told, is made up of small, composable libraries. In practice, though, it's all too common to find that two libraries simply will not cleanly compose. This typically will lead to another library that does the same thing, but in a subtly different way. Sometimes this is ...
Many of us have hazy memories of finite state machines from computer science theory classes in college. But finite state machines (FSMs) have real, practical value, and it is useful to know how to build and apply them in Clojure. For example, FSMs have long been popular to model game ...
Build Your Own Lisp for Great Justice
Implementing a toy Lisp interpreter is practically a rite of passage for the budding computer scientist. This hallowed tradition is described in detail in "Lisp in Small Pieces," the seminal work on the making of Lisps, but everybody loves a tl;dr, so let's do ...
About the speaker: Stuart Halloway (@stuarthalloway) is a founder and President of Cognitect (formerly Relevance). He is a Clojure committer, and a developer of the Datomic database. Stuart has spoken at a variety of industry events, including Strange Loop, Clojure/conj, EuroClojure, ClojureWest, SpeakerConf, QCon, GOTO, OSCON, RailsConf, RubyConf, JavaOne, and ...
Genetic programming harnesses the mechanisms of natural evolution, including mutation, recombination, and natural selection, to automatically synthesize computer programs. It has been applied to a wide range of problems spanning several areas of science, engineering, and the arts, in many cases equaling or exceeding human performance.
Genetic programming's roots are in ...
Contemporary compilers are among the most complex of software systems, typically being required to handle sophisticated high-level source languages, generate efficient code for multiple hardware architectures and operating systems, and support source-level debuggers, profilers, and other program development tools. Nanopass frameworks are designed to help manage this complexity. A nanopass ...
This presentation will introduce a new start-up focused on machine learning that is using Clojure. We will discuss the technology and architecture it has developed for real-time machine learning and pattern recognition, and how Clojure provides a unique set of advantages.
There will be a live coding demonstration of interactively applying ...
Data science / big data exists at the overlap of traditional analytics and large scale computation. As such, neither the traditional tools of analytics (R, Mathematica, Matlab) nor mainstreams languages (Java, C++, C#) supply its requirements well as they cannot simultaneously provide the mathematical abstractions and real-word platform power that ...
For most of human history, furniture was built by hand using a small set of simple tools. This approach connects you in a profoundly direct way to the work, your effort to the result. This changed with the rise of machine tools, which made production more efficient but also altered ...
Clojure for a desktop GUI application. With JavaFX. For game development. And it's all built on top of an in-memory, transactional graph database.
One of the biggest game developers in the world needed a new IDE to build games for their engine. Eclipse just wasn't cutting it any more.
It may sound ...