NLP Notebook: Languages #586
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Added a new section for languages in
nlp.ipynb. I gave a quick overview of context-free grammars and probabilistic cfgs, then I gave an overview of lexicons and grammars and finally gave examples using our implementations.Work on notebook, including an image for tree parsing.
Update
test_nlp.py; added test forGrammar.Update
nlp.pycomments.EDIT: I added
generate_random. Even though most of the generated sentences are pretty much gibberish and can be very long, I think it is interesting to see what kind of phrases a very simplistic grammar can generate.PS: So far in the chapter I have only encountered CFGs (and PCFGs). So even though there are other types of languages, I have refrained from writing on them since the book seems to focus on CFGs. If that is not the case and later on I encounter other grammars, I will amend the relevant section to add the rest of the grammars.