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Package org.terrier.indexing

Provides classes and interfaces related to the indexing of documents.

See: Description

Package org.terrier.indexing Description

Provides classes and interfaces related to the indexing of documents. There are three main abstract concepts that are related to the code of this package.

The first is the concept of a Collection of documents. This can be a standard TREC test collection, or a connection to a database from where the documents are extracted.

The second abstraction is the concept of a Document. An implementation of a collection should iterate through the documents in the collection and return one at a time. The document encapsulates the parser required to extract the information to index. Implementations of documents are provided for TREC documents, PDF documents and standard Microsoft Office formats, such as MS Word, MS Powerpoint and MS Excel.

The third abstraction is related to the Indexer, the process that iterates through the documents of a collection and creates the necessary data structures. There are several implemented indexers:

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Terrier Information Retrieval Platform4.2. Copyright © 2004-2016, University of Glasgow