27 search results - page 6 / 6 » Processing First-Order Queries under Limited Access Patterns |
DKE
2008
13 years 5 months ago
2008
We study an important data analysis operator, which extracts the k most important groups from data (i.e., the k groups with the highest aggregate values). In a data warehousing co...
SIGCOMM
2010
ACM
13 years 6 months ago
2010
ACM
Dense 802.11 wireless networks present a pressing capacity challenge: users in proximity contend for limited unlicensed spectrum. Directional antennas promise increased capacity b...