IRToolkit is an attempt to build and develop a generic search engine that integrates state-of-the-art Information Retrieval (IR) models. Furthermore, it offers a capability to compare the performance (in terms of precision, recall, index size, search response time and so on) between several open source IR applications.
If you use the IRToolkit please cite the following work:
https://sites.google.com/site/dinhbaduy/bibtex#Dinh-Phdthesis-2012