Data Sources

This module contains data source related logic, including -

• interface to single underlying corpus (cf. crawler, analyzer)
• LQL to Solr/Lucene queries translation

LQL to Solr/Lucene queries translation

NLP Features

Mainly used for query expansion.

WordNet

Synonyms and Antonyms

<!-- main library dependency -->
<dependency>
    <groupId>net.sf.extjwnl</groupId>
    <artifactId>extjwnl</artifactId>
    <version>2.0.5</version>
</dependency>
<!-- Princeton WordNet 3.1 data dependency -->
<dependency>
    <groupId>net.sf.extjwnl</groupId>
    <artifactId>extjwnl-data-wn31</artifactId>
    <version>1.2</version>
</dependency>

Code2Vec (Word2Vec) - Word Embeddings

Co-occuring method names.

See code2vec

• method names
• application.properties

Must be set via -D

models.embedding.code2vec = /home/swtlasso/models/target_vecs.txt

LQL

• $ used for name placeholders (class and method)
• ? used for type placeholders (type doesn't matter, e.g., it doesn't matter what is returned, can be void as well)