31 search results - page 5 / 7 » The Space Complexity of Approximating the Frequency Moments |
PODS
2012
ACM
11 years 10 months ago
2012
ACM
We show that randomization can lead to significant improvements for a few fundamental problems in distributed tracking. Our basis is the count-tracking problem, where there are k...
JSAC
2006
13 years 7 months ago
2006
This paper deals with joint data detection, synchronization and channel parameter estimation for Direct-Sequence Code Division Multiple Access (DS-CDMA) systems over frequency sel...
VTC
2006
IEEE
14 years 1 months ago
2006
IEEE
Abstract— This paper proposes a maximum likelihood detection (MLD) method for the differential space-time block code (DSTBC) in cooperation with blind linear prediction (BLP) of ...
PODS
2006
ACM
14 years 7 months ago
2006
ACM
In this paper, we give a simple scheme for identifying approximate frequent items over a sliding window of size n. Our scheme is deterministic and does not make any assumption on ...
CG
2005
Springer
13 years 7 months ago
2005
Springer
Space-Partition Octree (SP-Octree) is a hierarchical representation scheme for solid modelling. It allows a multiresolution representation of polyhedral objects, and has been succ...