This project consistes of a program to create an Inverted Index using Lucene API.

The given lucene index is generated by indexing a subset of PubMed corpus on Solr. It contains article titles in three languages: French, Spanish, and English. Another input file is provided which consists of a set of terms to be queried.

Created the Inverted Index using Lucene API on the given index file. Queried the set of terms given in the input file for following -

• Term at a Time - OR (TAAT-OR)
• Term at a Time - AND (TAAT-AND)
• Document at a Time - OR (DAAT-OR)
• Document at a Time - AND (DAAT-AND)
  
  The resulting postings list are saved in the output.txt file.