check out Michael Collins's NLP course: https://www.coursera.org/course/nlangp https://www.coursera.org/course/nlangp and notes: http://www.cs.columbia.edu/~m

check out Michael Collins's NLP course: https://www.coursera.org/course/nlangp https://www.coursera.org/course/nlangp and notes: http://www.cs.columbia.edu/~mcollins/ http://www.cs.columbia.edu/~mcollins/ he talks about averaged perceptron at the end (Lectures on generalized log-linear models - GLM http://www.cs.columbia.edu/~cs4705/ http://www.cs.columbia.edu/~cs4705/) perceptron tagger code (hw4 solution) can be found here https://github.com/emmadoraruth/Perceptron_Tagger.git https://github.com/emmadoraruth/Perceptron_Tagger.git