38 search results - page 4 / 8 » Spatio-Temporal Aggregation Using Sketches |
VLDB
2001
ACM
13 years 10 months ago
2001
ACM
In this paper we focus on the following problem in information management: given a large collection of recorded information and some knowledge of the process that is generating th...
PVLDB
2008
13 years 5 months ago
2008
Summaries of massive data sets support approximate query processing over the original data. A basic aggregate over a set of records is the weight of subpopulations specified as a ...
DC
2008
13 years 5 months ago
2008
We study the problem of maintaining a sketch of recent elements of a data stream. Motivated by applications involving network data, we consider streams that are asynchronous, in wh...
DIALM
2007
ACM
13 years 9 months ago
2007
ACM
Sketches--data structures for probabilistic, duplicate insensitive counting--are central building blocks of a number of recently proposed network protocols, for example in the con...
SIGMOD
2002
ACM
14 years 5 months ago
2002
ACM
Recent years have witnessed an increasing interest in designing algorithms for querying and analyzing streaming data (i.e., data that is seen only once in a fixed order) with only...