I have been trying to translate Norvig's famous spelling correction program into Racket. Norvig's Python version is:
http://norvig.com/spell-correct.html and my Racket version is https://github.com/jmoy/norvig-spell/blob/master/racket/norvig.rkt On my system the Racket version takes about 31s while the Python version takes 12s to on a test set. These measurements are done with command-line Racket. The README of my GitHub repository describes the interface of the programs and the test files. I would appreciate any advice of how I might improve the performance of the program without fundamentally changing its structure. As a beginner I would appreciate any other comments on style as well. Regards, Jyotirmoy Bhattacharya
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