SASOBUS

The Semi-Automatic Sentiment Ontology Building Using Synsets (SASOBUS) framework is built upon SOBA. Differently than other methods, this framework makes use of WordNet synsets in term extraction, concept formation and concept subsumption.

Installation instructions

1. Download the DataSASOBUS folder: https://1drv.ms/u/s!Ao_FuxrvQWwpg986t2VdzsWc8XDGbg?e=Cq1GSM
2. Put the contents of DataSASOBUS\SASOBUS_Data.zip into 2 folders:
   • SASOBUS\src\main\resources\externalData
   • SASOBUS\target\classes\externalData

Directory explanation

• SASOBUS package edu.eur.absa.embeddings

  • ContrastiveCorpusToSynsets.java – a class which preprocesses (with NLP pipeline) the contrastive corpus (i.e., English prose) and also finds synsets. It returns a file, which has words replaced by synsets
  • SemCor.java – a class, which gets the SemCor Brown Corpus files and transforms them to txt file. It also provides some methods for the JSemCor library
  • SemCorToTextSynstes.java – a class which transforms the original SemCor text into a text file, where words are replaced with synsets
  • SimplifiedLeskOnSemCor.java – a class, which performs WSD on SemCor and returns the accuracy of the Simplified Lesk algorithm
  • SynsetPairs.java – a class that returns all combinations (without repetitions) between elements in an array. In this case, the array contains the synset vocabulary from the synset embeddings model
  • Synsets.java – a class, where the synset IDs (in both formats, i.e., in JSemCor and JAWS) can be encoded and decoded
  • WordNet.java – a class with methods for JWI library
  • YelpToTextSynsets.java – a class, where the Yelp restaurant reviews are preprocessed and the words are replaced with synsets

• SASOBUS package edu.eur.absa.ontologybuilder

  • GridSearchParameters.java - a class which optimizes the parameters with grid search methods
  • GridSearchTermFrequency.java – a class which calculates all the DP and DC values. These values are later used by GridSearchParameters.java
  • MainOntoBuild.java – a class, which builds a semi-automatic ontology
  • OntologyBuilder.java – a class with methods to find terms, create hierarchy between concepts etc.

• SASOBUS package edu.eur.absa.seminarhelper

  • SeminarOntology.java – a class with methods for the ontology, e.g., adding classes or getting lex properties
  • TermFrequencyYelp.java – a class, which returns a file with frequencies of words/synsets in all the Yelp restaurant reviews
  • WordSenseDisambiguation.java – a class with the Simplified Lesk algorithm