Some movies which show the AIDA search interface in action can be found here.
AIDA provides components which enable the indexing of text documents in various formats, as well as the subsequent retrieval given a query, similar to popular search engines such as Google, Yahoo!, or PubMed. The Indexer and Search components are both built upon Apache Lucene, version 2.1.0 (http://lucene.apache.org). We have chosen to extend this particular open source software suite for our information retrieval components, because of the long-standing history as well as very active user/developer community. This also means that indexes or other systems based on Lucene can easily be integrated with AIDA.