Recommender Documentation - Apache Mahout. Database - How to create my own recommendation engine. Geeking with Greg. About GroupLens | GroupLens Research. Lecture 6: Collaborative Filtering / Information Extraction. Lecture 6: Collaborative Filtering / Information Extraction Tao Yang's Lecture ExpertRank: Ranking system for Ask.com. See US Patent Application 7028026 by Tao Yang, Wei Wang, and Apostolos Gerasoulis.
Retrieve documents from inverted file. Cluster documents by content and by link structure Apply a hub/authority analysis to each clusters. Clusters often have 100,000's of pages. Required Reading: Chakrabarti, sec 4.5 Evaluating collaborative filtering recommender systems By Jonathan Herlocker, Joseph Konstan, Loren Terveen, and John Reidl, ACM Transations on Information Systems, vol. 22, No. 1, 2004, pp. 5-53. Unsupervised Named-Entity Extraction from the Web. Additional Reading Amazon.com Recommendations: Item to Item Collaborative Filtering by Greg Linden, Brent Smith and Jeremy York, IEEE Internet Computing January-February 2003.
Collaborative Filtering Example: Terms and Documents We say that document D is relevant to query term T if D contains T. 1. SumC,D AU,C PC,D BM,D.