facebook announces Feature eXtraction Language (FXL)

Facebook announced it has developed a programming language called Feature eXtraction Language (FXL) in an effort to help combat spam on the social networking service. FXL described as a narrowly-optimized implementation of a well-chosen subset of Standard ML (with some customized syntax).FXL offers two key advantages: it is simple and easy to write, yet extremely efficient for Facebook-sized workloads.


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