• The initial header parsing algorithm used by CiteSeer^x was developed by Hui Han, C. Lee Giles, Eren Manavoglu, Hongyuan Zha, Zhenyue Zhang, and Edward A. Fox. The algorithm was further refined by Levent Bolelli and Isaac Councill.
• Yang Song developed an initial MyCiteSeer prototype that guided later efforts.
• Yang Sun contributed the venue analysis code for calculating impact factor statistics.

Open Source Acknowledgements

CiteSeer^x is supported by numerous excellent open source applications and libraries. Specifically, we would like to thank all who participated in the development of the following projects:

• The MySQL Database and InnoDB Storage Engine
• Solr
• Xapian
• Apache Tomcat
• The Spring Framework
• Spring Security
• ActiveMQ
• ActiveBPEL Open Source Engine
• The Apache Commons Libraries
• SVM^light support vector machine package
• CRF++ conditional random field package

We Also Recognize

• Andrew Ng was the first to extract title and author information from the header of PostScript files.
• The New Zealand Digital Library was the first to index the full text of PostScript research articles.
• Dr. Eugene Garfield created the idea of citation indexing of the scientific literature.

Special Thanks

Many have contributed to CiteSeer and its continuing development. In a list in which some are surely missing, we would like to thank