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README.md

QCRank - External Comment Selection and Ranking Tool for Community Question Answering sites

QCRank is licensed under ASL 2.0 and other lenient licenses, allowing its use for academic and commercial purposes without restrictions.

Downloading QCRank

  • Download the jar file of the project from here.
  • Alternatively, download the zip of the java project and import it as a maven project in eclipse for experimentation.

Downloading Data

  • QCRank requires a training xml file, a test xml file and unannotated data to train models.
  • The system was trained and tested on SemEval 2017 - Task 3: Community Question Answering Subtask C data.
  • Create a directory named xml_files in your local machine.
  • The training+dev data can be downloaded from here.
  • The test data for 2017 can be downloaded from here.
  • After unzipping this folder, move to semeval2016-task3-cqa-ql-traindev-v3.2/v3.2/train/. The entire training data for Task 3 can be found here.
  • Choose SemEval2016-Task3-CQA-QL-train-part1.xml or SemEval2016-Task3-CQA-QL-train-part2.xml train files for training and copy it to xml_files directory. Rename the training file train.xml.
  • Alternatively, combine various training xml files into one file train.xml for larger training data. Make sure to preserve the XML tree structure while doing this.
  • Similarly, choose dev/test files in semeval2016-task3-cqa-ql-traindev-v3.2/v3.2/dev/ or semeval2016_task3_tests/SemEval2016_task3_test/English/ as test data and rename it test.xml.
  • The unannotated data can be downloaded from here.
  • Download the python scripts required to run the system from here.
  • Unzip this resources_QCRank folder in a suitable place.
  • The trained word embeddings on the large unannotated data can be found here.

Running QCRank

  • Running QCRank jar can be done in two sequential steps
    • Run QCRank for the generic set of features
    java -Xmx10g -jar QCRank.jar [absolute-path-to-xml_files-folder] [absolute-path-to-resources-folder] [absolute-path-to-result_files-QARank] [absolute-path-to-result_files-QQRank]
    • Subsequently, Run QCRank along with the stacking features obtained from the scores of QARank (subtask A) and QQRank (subtask B)
      • With an additional argument, run QCRank as
      java -Xmx10g -jar QQRank.jar [absolute-path-to-xml_files-folder] [absolute-path-to-resources-folder] [absolute-path-to-result_files-QARank] [absolute-path-to-result_files-QQRank] stacking
  • The system will generate all folders and required files.
  • The final MAP scores of the system and the SVM accuracy can be found in result_files/final_scores.txt file.
  • Users can run the system on a different dataset, given the training and test files are in the format as in SemEval 2017 - Task 3.
  • The evaluation scripts used in the system can be looked up here.

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