GroupLens Research
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| Established | 1992 |
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Field of research
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recommender systems, social computing |
| Faculty | 5 |
| Staff | 2 |
| Students | 20 postgraduate students |
| Location | Minneapolis, MN, US |
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Operating agency
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College of Science and Engineering, University of Minnesota |
| Website | www.grouplens.org |
Coordinates: 44°58′27″N 93°13′57″W / 44.974280°N 93.232502°W
GroupLens Research is a human–computer interaction research lab in the Department of Computer Science and Engineering at the University of Minnesota, Twin Cities specializing in recommender systems and online communities. GroupLens also works with mobile and ubiquitous technologies, digital libraries, and local geographic information systems.
The GroupLens lab was one of the first to study automated recommender systems with the construction of the "GroupLens" recommender, a Usenet article recommendation engine, and MovieLens, a popular movie recommendation site used to study recommendation engines, tagging systems, and user interfaces. The lab has also gained notability for its members' work studying open content communities such as Cyclopath, a computational "" currently being used in the Twin Cities to help plan the regional cycling system.
In 1992, John Riedl and Paul Resnick attended the CSCW conference together. After they heard keynote speaker Shumpei Kumon talk about his vision for an information economy, they began working on a collaborative filtering system for Usenet news. The system collected ratings from Usenet readers and used those ratings to predict how much other readers would like an article before they read it. This recommendation engine was one of the first automated collaborative filtering systems in which algorithms were used to automatically form predictions based on historical patterns of ratings. The overall system was called the "GroupLens" recommender, and the servers that collected the ratings and performed the computation were called the "Better Bit Bureau". This name was later dropped after a request from the Better Business Bureau. "GroupLens" is now used as a name both for this recommender system, and for the research lab at the University of Minnesota.
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