/**
* opennlp part of speech tagging
*
* @param tokens
* @return
* @return
* @throws IOException
*/
public static List<String> taggerAndStemmer(String inputFile) throws IOException {
String tags[] = null;
String[] tokens = tokenizer(inputFile);
List<String> token_tag = new ArrayList<String>();
List<String> stemmedwords = new ArrayList<String>();
PlingStemmer stemmer = new PlingStemmer();
try (InputStream posModelStream = new FileInputStream("openNLPmodels\\en-pos-maxent.bin");
InputStream chunkerStream = new FileInputStream("openNLPmodels\\en-chunker.bin"); ) {
POSModel modelTagger = new POSModel(posModelStream);
POSTaggerME tagger = new POSTaggerME(modelTagger);
tags = tagger.tag(tokens);
for (int i = 0; i < tags.length; i++) {
String w = tokens[i].toLowerCase(); // lowercase phrase
w = stemmer.stem(w); // stemming phrase
if (tags[i].equals("NNS")) token_tag.add(w + "/" + "NN");
else token_tag.add(w + "/" + tags[i]);
}
} catch (IOException ex) {
// Handle exceptions
}
return token_tag;
}
public void run(String sentence) {
POSTaggerME tagger = new POSTaggerME(getModel());
String[] words = sentence.split("\\s+");
String[] tags = tagger.tag(words);
double[] probs = tagger.probs();
for (int i = 0; i < tags.length; i++) {
System.out.println(words[i] + " => " + tags[i] + " @ " + probs[i]);
}
}
@Override
public void annotate(Annotation sentence) {
POSTaggerME posTagger = new POSTaggerME(loadPOSTagger(sentence.getLanguage()));
String[] tokens = sentence.tokens().stream().map(Object::toString).toArray(String[]::new);
String[] tags = posTagger.tag(tokens);
for (int i = 0; i < tokens.length; i++) {
Annotation token = sentence.tokenAt(i);
token.put(Types.PART_OF_SPEECH, POS.fromString(tags[i]));
}
}
@Override
public Matrix parseContent(
LinkedList docRow,
int idCol,
int targetCol,
LinkedList<Integer> dateColsNum,
LinkedList<Integer> otherColsNum) {
Matrix returnMat = new Matrix();
String inputStr = docRow.get(targetCol - 1).toString().toLowerCase();
String[] inputStrArray = tokenizer.tokenize(inputStr);
String[] tagArray = tagger.tag(inputStrArray);
for (int i = 0; i < tagArray.length; i++) {
String keywordRole = tagArray[i];
String orgKeyword = inputStrArray[i];
// System.out.println(stemmer.stem("agreed"));
// check keyword_role is usable
boolean roleFlag = AnalysisThread.roleFilter(keywordRole);
if (roleFlag) {
AnalysisThread.addToMatrix(keywordRole, orgKeyword, docRow, returnMat);
}
}
return returnMat;
}
public void run(String file, POSModel model) throws Exception {
@SuppressWarnings("resource")
BufferedReader br = new BufferedReader(new FileReader(new File(file)));
String l = "";
POSTaggerME tagger = new POSTaggerME(model);
int correct = 0;
int wrong = 0;
while ((l = br.readLine()) != null) {
String strip = l.replaceAll("_[A-Z]+", "");
String[] tags1 = l.replaceAll("[^_\\s]+?_", "").split(" ");
// System.out.println(strip);
// System.out.println(tags);
String[] tags2 = tagger.tag(strip.split(" "));
String[] strips = strip.split(" ");
if (tags2.length != tags1.length) {
// something went wrong
throw new Exception("Tag lists unequal size");
}
for (int i = 0; i < tags2.length; i++) {
if (tags1[i].equals(tags2[i])) {
correct++;
} else {
System.err.println(strip);
System.err.print(strips[i] + " ");
System.err.println(tags1[i] + " tagged as " + tags2[i]);
wrong++;
}
}
}
br.close();
System.out.println("Total: " + (correct + wrong));
System.out.println("Correct: " + correct);
System.out.println("Wrong: " + wrong);
System.out.println("Precision: " + (((double) correct) / (correct + wrong)));
}
public static String getPredicates(String s) {
InputStream modelPOSTagger = null;
InputStream modelTokenizer = null;
POSModel modelPOS = null;
TokenizerModel modelToken = null;
StringBuffer sent = new StringBuffer();
// loading the POSTagger Model
try {
modelPOSTagger =
new FileInputStream(
"/home/opnchaudhary/androidapps/openNlpWeb/WebContent/mod/en-pos-maxent.bin");
modelPOS = new POSModel(modelPOSTagger);
} catch (Exception e) {
e.printStackTrace();
} finally {
if (modelPOSTagger != null) {
try {
modelPOSTagger.close();
} catch (Exception e1) {
e1.printStackTrace();
}
}
}
// loading the Tokenizer Model
try {
modelTokenizer =
new FileInputStream(
"/home/opnchaudhary/androidapps/openNlpWeb/WebContent/mod/en-token.bin");
modelToken = new TokenizerModel(modelTokenizer);
} catch (Exception e) {
e.printStackTrace();
} finally {
if (modelTokenizer != null) {
try {
modelTokenizer.close();
} catch (Exception e1) {
e1.printStackTrace();
}
}
}
// POS Tagging
// Tokenization
Tokenizer tokenizer = new TokenizerME(modelToken);
String[] tokens = tokenizer.tokenize(s);
POSTaggerME posTagger = new POSTaggerME(modelPOS);
/*
* This works to some extent. The logic behind this is to take out verb
* out of the sentence as attribute of the subject of the sentence to
* form a predicate with object of the sentece as the second parameter
* in the predicate
*/
String consts = null;
String attr = null;
String consts1 = null;
int count = 0;
for (int tempVar = 0; tempVar < tokens.length; tempVar++) {
String temp = posTagger.tag(tokens[tempVar]);
String[] temps = temp.split(" ");
for (int i = 0; i < temps.length; i++) {
String[] t = temps[i].split("/");
if (t[1].equals("NN")
|| t[1].equals("NNS")
|| t[1].equals("NNP")
|| t[1].equals("NNPS")
|| t[1].equals("FW")) {
count++;
if (count == 1) {
consts = t[0];
break;
}
}
}
for (int i = 0; i < temps.length; i++) {
String[] t = temps[i].split("/");
if (t[1].equals("VB") || t[1].equals("VBD") || t[1].equals("VBN") || t[1].equals("VBZ")) {
attr = t[0];
}
}
for (int i = 0; i < temps.length; i++) {
String[] t = temps[i].split("/");
if (t[1].equals("NN")
|| t[1].equals("NNS")
|| t[1].equals("NNP")
|| t[1].equals("NNPS")
|| t[1].equals("FW")
|| t[1].equals("JJ")) {
consts1 = t[0];
}
}
}
sent.append(attr + "(" + consts + "," + consts1 + ")");
return sent.toString();
}
public void run(String format, String[] args) {
super.run(format, args);
mlParams = CmdLineUtil.loadTrainingParameters(params.getParams(), true);
if (mlParams != null && !TrainerFactory.isValid(mlParams.getSettings())) {
throw new TerminateToolException(
1, "Training parameters file '" + params.getParams() + "' is invalid!");
}
if (mlParams == null) {
mlParams = ModelUtil.createDefaultTrainingParameters();
mlParams.put(TrainingParameters.ALGORITHM_PARAM, getModelType(params.getType()).toString());
}
File modelOutFile = params.getModel();
CmdLineUtil.checkOutputFile("pos tagger model", modelOutFile);
Dictionary ngramDict = null;
Integer ngramCutoff = params.getNgram();
if (ngramCutoff != null) {
System.err.print("Building ngram dictionary ... ");
try {
ngramDict = POSTaggerME.buildNGramDictionary(sampleStream, ngramCutoff);
sampleStream.reset();
} catch (IOException e) {
throw new TerminateToolException(
-1, "IO error while building NGram Dictionary: " + e.getMessage(), e);
}
System.err.println("done");
}
POSTaggerFactory postaggerFactory = null;
try {
postaggerFactory = POSTaggerFactory.create(params.getFactory(), ngramDict, null);
} catch (InvalidFormatException e) {
throw new TerminateToolException(-1, e.getMessage(), e);
}
if (params.getDict() != null) {
try {
postaggerFactory.setTagDictionary(postaggerFactory.createTagDictionary(params.getDict()));
} catch (IOException e) {
throw new TerminateToolException(
-1, "IO error while loading POS Dictionary: " + e.getMessage(), e);
}
}
if (params.getTagDictCutoff() != null) {
try {
TagDictionary dict = postaggerFactory.getTagDictionary();
if (dict == null) {
dict = postaggerFactory.createEmptyTagDictionary();
postaggerFactory.setTagDictionary(dict);
}
if (dict instanceof MutableTagDictionary) {
POSTaggerME.populatePOSDictionary(
sampleStream, (MutableTagDictionary) dict, params.getTagDictCutoff());
} else {
throw new IllegalArgumentException(
"Can't extend a POSDictionary that does not implement MutableTagDictionary.");
}
sampleStream.reset();
} catch (IOException e) {
throw new TerminateToolException(
-1, "IO error while creating/extending POS Dictionary: " + e.getMessage(), e);
}
}
POSModel model;
try {
model =
opennlp.tools.postag.POSTaggerME.train(
params.getLang(), sampleStream, mlParams, postaggerFactory);
} catch (IOException e) {
throw new TerminateToolException(
-1, "IO error while reading training data or indexing data: " + e.getMessage(), e);
} finally {
try {
sampleStream.close();
} catch (IOException e) {
// sorry that this can fail
}
}
CmdLineUtil.writeModel("pos tagger", modelOutFile, model);
}
