Source Code for Module featuregenerator.bestsystem

 1  ''' 
 2  Created on Jun 24, 2011 
 3   
 4  @author: Eleftherios Avramidis 
 5  ''' 
 6   
 7  from featuregenerator import FeatureGenerator 
 8   
 9 -class BestSystemFeatureGenerator(FeatureGenerator): 
10      ''' 
11      classdocs 
12      ''' 
13   
14   
15 -    def __init__(self, critical_feature, critical_function): 
16          ''' 
17          Constructor 
18          ''' 
19          self.critical_feature = critical_feature 
20          self.critical_function = critical_function 
21           
22       
23 -    def get_features_parallelsentence(self, ps): 
24          value_per_system = [float(tgt.get_attribute(self.critical_feature)) for tgt in ps.get_translations()] 
25          min_wer = min(value_per_system) 
26          best_systems = [] 
27          id = 0 
28          for wer_value in value_per_system: 
29              id += 1 
30              if wer_value == min_wer: 
31                  best_systems.append(id) 
32          if best_systems > 1: 
33               
34              print "maybe more than one best systems according to %s" % self.critical_function.__class__.__name__ 
35           
36          return {'best': str(best_systems[0])} 
37