15 search results - page 2 / 3 » Incremental Computation and Maintenance of Temporal Aggregat... |
ICPR
2008
IEEE
13 years 11 months ago
2008
IEEE
This article introduces new similarity measures between trajectories, in order to detect uncommon behaviors. These measures are used to find the most common trajectories in a seq...
DBPL
1997
Springer
13 years 9 months ago
1997
Springer
We examine the power of incremental evaluation systems that use an SQL-like language for maintaining recursively-de ned views. We show that recursive queries such as transitive clo...
EDBT
2000
ACM
13 years 8 months ago
2000
ACM
Warehouse view self-maintenance refers to maintaining materialized views at a data warehouse without accessing source data. Self-maintenance has been studied for nontemporal views...
DEBS
2007
ACM
13 years 8 months ago
2007
ACM
Queries for composite events typically involve the four complementary dimensions of event data, event composition, relationships between events (esp. temporal and causal), and acc...
JDM
2007
13 years 4 months ago
2007
We present a new method for computing temporal aggregation that uses a multidimensional index. The novelty of our method lies in mapping the start time and end time of a temporal ...