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CHI
2004
ACM
15 years 10 months ago
Off-task behavior in the cognitive tutor classroom: when students "game the system"
We investigate the prevalence and learning impact of different types of off-task behavior in classrooms where students are using intelligent tutoring software. We find that within...
Ryan Shaun Baker, Albert T. Corbett, Kenneth R. Ko...
CORR
2008
Springer
133views Education» more  CORR 2008»
14 years 10 months ago
Emergence of Spontaneous Order Through Neighborhood Formation in Peer-to-Peer Recommender Systems
The advent of the Semantic Web necessitates paradigm shifts away from centralized client/server architectures towards decentralization and peer-to-peer computation, making the exi...
Ernesto Diaz-Aviles, Lars Schmidt-Thieme, Cai-Nico...
IMC
2004
ACM
15 years 3 months ago
Availability, usage, and deployment characteristics of the domain name system
The Domain Name System (DNS) is a critical part of the Internet’s infrastructure, and is one of the few examples of a robust, highlyscalable, and operational distributed system....
Jeffrey Pang, James Hendricks, Aditya Akella, Robe...
WWW
2007
ACM
15 years 10 months ago
A content-driven reputation system for the wikipedia
We present a content-driven reputation system for Wikipedia authors. In our system, authors gain reputation when the edits they perform to Wikipedia articles are preserved by subs...
B. Thomas Adler, Luca de Alfaro
ICDE
2010
IEEE
219views Database» more  ICDE 2010»
15 years 9 months ago
PIP: A Database System for Great and Small Expectations
Estimation via sampling out of highly selective join queries is well known to be problematic, most notably in online aggregation. Without goal-directed sampling strategies, samples...
Oliver Kennedy, Christoph Koch