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CORR
2011
Springer
200views Education» more  CORR 2011»
14 years 8 months ago
Analytical Evaluation of Fractional Frequency Reuse for OFDMA Cellular Networks
Fractional frequency reuse (FFR) is an interference management technique well-suited to OFDMAbased cellular networks wherein the cells are partitioned into spatial regions with di...
Thomas David Novlan, Radha Krishna Ganti, Arunabha...
SIGIR
2006
ACM
15 years 10 months ago
Unifying user-based and item-based collaborative filtering approaches by similarity fusion
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 ...
Jun Wang, Arjen P. de Vries, Marcel J. T. Reinders
VLDB
2004
ACM
118views Database» more  VLDB 2004»
15 years 10 months ago
On the performance of bitmap indices for high cardinality attributes
It is well established that bitmap indices are efficient for read-only attributes with low attribute cardinalities. For an attribute with a high cardinality, the size of the bitma...
Kesheng Wu, Ekow J. Otoo, Arie Shoshani
HPDC
2010
IEEE
15 years 5 months ago
Scalability of communicators and groups in MPI
As the number of cores inside compute clusters continues to grow, the scalability of MPI (Message Passing Interface) is important to ensure that programs can continue to execute o...
Humaira Kamal, Seyed M. Mirtaheri, Alan Wagner
CHI
2006
ACM
16 years 5 months ago
Share and share alike: exploring the user interface affordances of file sharing
With the rapid growth of personal computer networks and the Internet, sharing files has become a central activity in computer use. The ways in which users control the what, how, a...
Stephen Voida, W. Keith Edwards, Mark W. Newman, R...
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