2013/10/1 cerr <ron.egg...@gmail.com>: > Hi, > > I want to write an extraction tool using CRF++ > (http://crfpp.googlecode.com/svn/trunk/doc/index.html). > I have written a trainings file and a template: > training: > banana FOOD B-NP > bread FOOD I-NP > template: > U01:%x[0,1] > U02:%x[1,1] > > and now I want to go ahead and extract the foods from a sentence like "how do > I make a banana bread". Also, I'm unsure how I interface to crf++ with > python, I compiled and installed it from source as described on the above > website but I don't have a crf module available in python... > -- > https://mail.python.org/mailman/listinfo/python-list
Hi, I have unfortunately no experience with CRF++; if there is no python wrapper for it available, the usage might not be (easily) possible - depending on the character of this library, you may try accessing it e.g. via ctypes. Alternatively, you may try another packages already available, e.g. NLTK: http://nltk.org/ >>> import nltk >>> any(synset.lexname == "noun.food" for synset in >>> nltk.corpus.wordnet.synsets("apple")) True >>> any(synset.lexname == "noun.food" for synset in >>> nltk.corpus.wordnet.synsets("bread")) True >>> any(synset.lexname == "noun.food" for synset in >>> nltk.corpus.wordnet.synsets("wine")) True >>> any(synset.lexname == "noun.food" for synset in >>> nltk.corpus.wordnet.synsets("book")) False >>> any(synset.lexname == "noun.food" for synset in >>> nltk.corpus.wordnet.synsets("pencil")) False # of course there might be some surprise, probably due to polysemy ore some specifics of the semantic description... >>> any(synset.lexname == "noun.food" for synset in >>> nltk.corpus.wordnet.synsets("dog")) True >>> any(synset.lexname == "noun.food" for synset in >>> nltk.corpus.wordnet.synsets("white")) True >>> cf. http://nltk.org/ http://nltk.googlecode.com/svn/trunk/doc/howto/wordnet.html http://www.velvetcache.org/2010/03/01/looking-up-words-in-a-dictionary-using-python http://wordnet.princeton.edu/man/lexnames.5WN.html hth, vbr -- https://mail.python.org/mailman/listinfo/python-list
