All code samples from this post are available on GitHub. Natural Language Processing is one more hot topic as Machine Learning. For sure, it is extremely important, but poorly developed. What we have in .NET? Lets start from what we already have. Abodit NLP SharpNLP (looks dead) NLP for .NET (discontinued) MSTParserCSharp NooJ NlpDotNet OpenTextSummarizer C# Port [...]