1. Search engine results over time: A case study on search engine stability.;Bar-Ilan;Cybermetrics,1999
2. Data collection methods on the Web for informetric purposes: A review and analysis;Bar-Ilan;Scientometrics,2001
3. Finding out about—A cognitive perspective on search engine technology and the WWW;Belew,2000
4. Intelligent document classification;Calvo;Intelligent Data Analysis,2000
5. Identifying sources of opinions with conditional random fields and extraction patterns;Choi,2005