Class: OSCAR3
Class Method Summary collapse
Instance Method Summary collapse
Methods inherited from NER
#entities, #extract, #initialize
Constructor Details
This class inherits a constructor from NER
Class Method Details
.init ⇒ Object
9 10 11 12 13 14 15 16 |
# File 'lib/rbbt/ner/oscar3.rb', line 9 def self.init @@TextToSciXML ||= Rjb::import('uk.ac.cam.ch.wwmm.ptclib.scixml.TextToSciXML') @@ProcessingDocumentFactory ||= Rjb::import('uk.ac.cam.ch.wwmm.oscar3.recogniser.document.ProcessingDocumentFactory') @@MEMMSingleton ||= Rjb::import('uk.ac.cam.ch.wwmm.oscar3.recogniser.memm.MEMMSingleton') @@DFANEFinder ||= Rjb::import('uk.ac.cam.ch.wwmm.oscar3.recogniser.finder.DFANEFinder') @@MEMM ||= @@MEMMSingleton.getInstance(); @@DFA ||= @@DFANEFinder.getInstance(); end |
.match(text, type = nil, memm = false) ⇒ Object
18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 |
# File 'lib/rbbt/ner/oscar3.rb', line 18 def self.match(text, type = nil, memm = false) self.init doc = @@ProcessingDocumentFactory.getInstance().makeTokenisedDocument(@@TextToSciXML.textToSciXML(text), true, false, false); mentions = [] it = doc.getTokenSequences().iterator type = [type] unless type.nil? or Array === type while it.hasNext do sequence = it.next # Fix sequence offset sequence_str = sequence.getSourceString.to_s sequence_offset = sequence.offset.to_i offset = 0 while text[(sequence_offset + offset)..(sequence_offset + offset + sequence_str.length - 1)] != sequence_str and not offset + sequence_offset + sequence_str.length > text.length offset += 1 end next if offset + sequence_offset + sequence_str.length > text.length if memm entities = @@MEMM.findNEs(sequence, text) keys = entities.keySet.iterator else entities = @@DFA.getNEs(sequence) keys = entities.iterator end while keys.hasNext do key = keys.next mention_type, rstart, rend, mention = key.to_string.match(/\[NE:(.*):(.*):(.*):(.*)\]/).values_at(1,2,3,4) next unless type.nil? or type.include? mention_type score = memm ? entities.get(key).to_string.to_f : nil NamedEntity.setup mention, :offset => rstart.to_i + offset, :entity_type => mention_type, :score => score mentions << mention unless mentions.collect{|m| m.to_s}.include? mention.to_s end end mentions end |