121 search results - page 18 / 25 » A Simple E-learning System Based on Classroom Competition |
SIGIR
2006
ACM
14 years 3 months ago
2006
ACM
Memory-based methods for collaborative filtering predict new ratings by averaging (weighted) ratings between, respectively, pairs of similar users or items. In practice, a large ...
SIGMETRICS
2008
ACM
13 years 9 months ago
2008
ACM
We consider a wireless collision channel, shared by a finite number of mobile users who transmit to a common base station using a random access protocol. Mobiles are selfoptimizin...
MOBIDE
2005
ACM
14 years 2 months ago
2005
ACM
In the context of mobile data access, data caching is fundamental for both performance and functionality. For this reason there have been many studies into developing energy-effi...
SIGIR
2010
ACM
14 years 29 days ago
2010
ACM
Music information retrieval (MIR) holds great promise as a technology for managing large music archives. One of the key components of MIR that has been actively researched into is...
SIGMOD
2011
ACM
12 years 12 months ago
2011
ACM
Joins are essential for many data analysis tasks, but are not supported directly by the MapReduce paradigm. While there has been progress on equi-joins, implementation of join alg...