+ h"^RIt!RR4tR#)Nc6a]tRt^ toRtRtRtRtRtVt R#)DependencyEvaluatorae Class for measuring labelled and unlabelled attachment score for dependency parsing. Note that the evaluation ignores punctuation. >>> from nltk.parse import DependencyGraph, DependencyEvaluator >>> gold_sent = DependencyGraph(""" ... Pierre NNP 2 NMOD ... Vinken NNP 8 SUB ... , , 2 P ... 61 CD 5 NMOD ... years NNS 6 AMOD ... old JJ 2 NMOD ... , , 2 P ... will MD 0 ROOT ... join VB 8 VC ... the DT 11 NMOD ... board NN 9 OBJ ... as IN 9 VMOD ... a DT 15 NMOD ... nonexecutive JJ 15 NMOD ... director NN 12 PMOD ... Nov. NNP 9 VMOD ... 29 CD 16 NMOD ... . . 9 VMOD ... """) >>> parsed_sent = DependencyGraph(""" ... Pierre NNP 8 NMOD ... Vinken NNP 1 SUB ... , , 3 P ... 61 CD 6 NMOD ... years NNS 6 AMOD ... old JJ 2 NMOD ... , , 3 AMOD ... will MD 0 ROOT ... join VB 8 VC ... the DT 11 AMOD ... board NN 9 OBJECT ... as IN 9 NMOD ... a DT 15 NMOD ... nonexecutive JJ 15 NMOD ... director NN 12 PMOD ... Nov. NNP 9 VMOD ... 29 CD 16 NMOD ... . . 9 VMOD ... """) >>> de = DependencyEvaluator([parsed_sent],[gold_sent]) >>> las, uas = de.eval() >>> las 0.6 >>> uas 0.8 >>> abs(uas - 0.8) < 0.00001 True c WnW nR#)zq :param parsed_sents: the list of parsed_sents as the output of parser :type parsed_sents: list(DependencyGraph) N) _parsed_sents _gold_sents)self parsed_sents gold_sentss&&&5/usr/lib/python3/dist-packages/nltk/parse/evaluate.py__init__DependencyEvaluator.__init__Gs *%c Ba0RmoRPV3RlV44#)z Function to remove punctuation from Unicode string. :param input: the input string :return: Unicode string after remove all punctuation c3b<"TF$p\P!V4S9gK VxK& R#5i)N) unicodedatacategory).0xpunc_cats& r 4DependencyEvaluator._remove_punct..Vs%S%Q;+?+?+B(+Rqq%s/ />PcPdPePfPiPoPs)join)rinStrrs&&@r _remove_punct!DependencyEvaluator._remove_punctOs >wwS%SSSrc \VP4\VP48wd \R4h^p^p^p\ \VP44EFpVPV,P pVPV,P p\V4\V48wd \R4hVP 4FwrxWg,p VR,fKVR,V R,8wd \R4hVPVR,4R8XdKYV^, pVR,V R,8XgKyV^, pVR,V R,8XgKV^, pK EK W#, W, 3#)zn Return the Labeled Attachment Score (LAS) and Unlabeled Attachment Score (UAS) :return : tuple(float,float) zE Number of parsed sentence is different with number of gold sentence.z!Sentences must have equal length.wordz!Sentence sequence is not matched.rheadrel)lenrr ValueErrorrangenodesitemsr") rcorrcorrLtotaliparsed_sent_nodesgold_sent_nodesparsed_node_address parsed_node gold_nodes & r evalDependencyEvaluator.evalXsb t!! "c$*:*:&; ;W s4--./A $ 2 21 5 ; ; "..q177O$%_)== !DEE4E4K4K4M0#+@ v&.v&)F*;;$%HII%%k&&9:b@ v&)F*;;AID"5)Yu-== #5N04}dl**r)rrN) __name__ __module__ __qualname____firstlineno____doc__r r"r6__static_attributes____classdictcell__) __classdict__s@r rr s 8t&T)+)+rr)rrrr rAsu+u+r