Sciweavers

2944 search results - page 34 / 589
» On Indexed Data Broadcast
Sort
View
ICASSP
2010
IEEE
15 years 6 months ago
Feedback reduction in MIMO broadcast channels with LMMSE receivers
In this paper we analyze the performance of random beamforming schemes in a multi-user Gaussian broadcast channel. Each user will have N > 1 receive antennas allowing optimal c...
Matthew Pugh, Bhaskar D. Rao
VTC
2010
IEEE
167views Communications» more  VTC 2010»
15 years 4 months ago
Pseudo Random Network Coding Design for IEEE 802.16m Enhanced Multicast and Broadcast Service
—Applying network coding on broadcasting service is known to reduce times of transmission in the process of recovering the loss packets. In previous design, coding coefficients ...
Cheng-Chih Chao, Ching-Chun Chou, Hung-Yu Wei
KDD
1998
ACM
148views Data Mining» more  KDD 1998»
15 years 10 months ago
Group Bitmap Index: A Structure for Association Rules Retrieval
Discovery of association rules from large databases of item sets is an important data mining problem. Association rules are usually stored in relational databases for future use i...
Tadeusz Morzy, Maciej Zakrzewicz
CIDR
2003
218views Algorithms» more  CIDR 2003»
15 years 7 months ago
Indexing Large Trajectory Data Sets With SETI
With the rapid increase in the use of inexpensive, location-aware sensors in a variety of new applications, large amounts of time-sequenced location data will soon be accumulated....
V. Prasad Chakka, Adam Everspaugh, Jignesh M. Pate...
ADBIS
2003
Springer
204views Database» more  ADBIS 2003»
15 years 9 months ago
Hierarchical Bitmap Index: An Efficient and Scalable Indexing Technique for Set-Valued Attributes
Abstract. Set-valued attributes are convenient to model complex objects occurring in the real world. Currently available database systems support the storage of set-valued attribut...
Mikolaj Morzy, Tadeusz Morzy, Alexandros Nanopoulo...