org.cleartk.ml.crfsuite.CrfSuiteStringOutcomeClassifier Maven / Gradle / Ivy

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ClearTK wrapper for the CRFsuite
There is a newer version: 3.0.0
/** 
 * Copyright 2011-2012
 * Ubiquitous Knowledge Processing (UKP) Lab
 * Technische Universität Darmstadt
 * All rights reserved.
 * 
 * This program is free software; you can redistribute it and/or
 * modify it under the terms of the GNU General Public License
 * as published by the Free Software Foundation; either version 2
 * of the License, or (at your option) any later version.
 * 
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 * 
 * For a complete copy of the license please see the file LICENSE distributed 
 * with the cleartk-syntax-berkeley project or visit 
 * http://www.gnu.org/licenses/old-licenses/gpl-2.0.html.
 * 
 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
 * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
 * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
 * POSSIBILITY OF SUCH DAMAGE. 
 */
package org.cleartk.ml.crfsuite;

import java.io.File;
import java.io.IOException;
import java.util.List;

import org.cleartk.ml.CleartkProcessingException;
import org.cleartk.ml.Feature;
import org.cleartk.ml.encoder.features.FeaturesEncoder;
import org.cleartk.ml.encoder.features.NameNumber;
import org.cleartk.ml.encoder.outcome.OutcomeEncoder;
import org.cleartk.ml.jar.SequenceClassifier_ImplBase;

/**
 * 
 * 
 * 

 * Copyright (c) 2011-2012, Technische Universität Darmstadt 

 * All rights reserved.
 * 
 * @author Martin Riedl
 */
public class CrfSuiteStringOutcomeClassifier extends
    SequenceClassifier_ImplBase, String, String> {

  private File modelFile;

  CrfSuiteWrapper wrapper;

  public CrfSuiteStringOutcomeClassifier(
      FeaturesEncoder> featuresEncoder,
      OutcomeEncoder outcomeEncoder,
      File modelFile) {
    super(featuresEncoder, outcomeEncoder);
    this.modelFile = modelFile;
    this.wrapper = new CrfSuiteWrapper();
  }

  public List classify(List> features) throws CleartkProcessingException {
    List posTags = null;

    try {

      posTags = wrapper.classifyFeatures(features, outcomeEncoder, featuresEncoder, modelFile);
    } catch (IOException e) {
      e.printStackTrace();
    }
    return posTags;
  }

}