Source Code for Module TEES.ExampleBuilders.FeatureBuilders.EVEXFeatureBuilder

 1  """ 
 2  EVEX Feature Builder 
 3  """ 
 4  __version__ = "$Revision: 1.5 $" 
 5   
 6  from FeatureBuilder import FeatureBuilder 
 7   
 8 -class EVEXFeatureBuilder(FeatureBuilder): 
 9 -    def __init__(self, featureSet): 
10          """ 
11          This is called, when the ExampleBuilder object is created. 
12           
13          @type featureSet: Core.IdSet 
14          @param featureSet: The feature ids 
15          """ 
16          FeatureBuilder.__init__(self, featureSet) 
17       
18 -    def initSentence(self, sentenceGraph): 
19          """ 
20          This function is called once for each sentence, before any calls to "buildFeatures". It 
21          should be used to initialize per-sentence data structures. 
22           
23          @type sentenceGraph: Core.SentenceGraph 
24          @param sentenceGraph: a SentenceGraph object providing access to the aligned semantic and syntactic 
25                         information of the sentence. The underlying XML can also be accessed through 
26                         this class. 
27          """ 
28          ### Sentence initialization code here ### 
29          pass 
30       
31 -    def buildEdgeFeatures(self, entity1, entity2, token1, token2, path, sentenceGraph): 
32          """ 
33          This is the main-function for feature generation. It is called once for each  
34          directed entity pair in the sentence. 
35           
36          For defining features, please use the member function "setFeature(self, name, value=1)", 
37          derived from the parent class. This ensures features get correctly tagged, if needed. 
38           
39          @type entity1: cElementTree.Element 
40          @param entity1: First entity of the candidate edge, an Interaction XML "entity"-element 
41          @type entity2: cElementTree.Element 
42          @param entity2: Second entity of the candidate edge, an Interaction XML "entity"-element 
43          @type token1: cElementTree.Element 
44          @param token1: The head token of entity1, an Interaction XML "token"-element 
45          @type token2: cElementTree.Element 
46          @param token2: The head token of entity2, an Interaction XML "token"-element 
47          @type path: list of cElementTree.Elements (when "no_path" style is set, this is always [token1, token2]) 
48          @param path: the shortest connecting path of tokens (Interaction XML "token"-elements) 
49          @type sentenceGraph: Core.SentenceGraph 
50          @param sentenceGraph: a SentenceGraph object providing access to the aligned semantic and syntactic 
51                         information of the sentence. The underlying XML can also be accessed through 
52                         this class. 
53          """ 
54          ### Feature generation code here ### 
55          pass 
56   
57  if __name__=="__main__": 
58      """ 
59      The main-function is the test program for the EVEX feature builder. It takes as a parameter an 
60      Interaction XML corpus file, and builds edge-examples using MultiEdgeExampleBuilder. When the 
61      "evex" style parameter is set, MultiEdgeExampleBuilder will call EVEXFeatureBuilder for feature 
62      generation. 
63      """ 
64      import sys 
65      sys.path.append("../..") 
66      from Core.IdSet import IdSet 
67      import Core.ExampleUtils as ExampleUtils 
68      from ExampleBuilders.MultiEdgeExampleBuilder import MultiEdgeExampleBuilder 
69   
70      # Import Psyco if available 
71      try: 
72          import psyco 
73          psyco.full() 
74          print >> sys.stderr, "Found Psyco, using" 
75      except ImportError: 
76          print >> sys.stderr, "Psyco not installed" 
77       
78      from optparse import OptionParser 
79      optparser = OptionParser(usage="%prog [options]\nTest EVEX Feature Builder.") 
80      defaultInput = "/usr/share/biotext/BioNLP2011/data/main-tasks/GE/GE-devel-nodup.xml" 
81      optparser.add_option("-i", "--input", default=defaultInput, dest="input", help="Corpus in analysis format", metavar="FILE") 
82      optparser.add_option("-o", "--output", default="evex-examples.txt", dest="output", help="Output feature file") 
83      optparser.add_option("-d", "--edgeIds", default="evex-ids", dest="edgeIds", help="Example class and feature id file stem (files = STEM.class_names and STEM.feature_names)") 
84      optparser.add_option("-t", "--tokenization", default="split-mccc-preparsed", dest="tokenization", help="tokenization") 
85      optparser.add_option("-p", "--parse", default="split-mccc-preparsed", dest="parse", help="parse") 
86      optparser.add_option("-s", "--styles", default="typed,directed,no_path,no_task,no_dependency,no_linear,entities,genia_limits,noMasking,maxFeatures,evex", dest="edgeStyles", help="") 
87      (options, args) = optparser.parse_args() 
88      assert options.input != None 
89      assert options.output != None 
90      assert options.edgeIds != None 
91       
92      exampleBuilder = MultiEdgeExampleBuilder() 
93      exampleBuilder.run(options.input, options.output, options.parse, options.tokenization, "style:"+options.edgeStyles, options.edgeIds) 
94