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DBPL
2007
Springer
75views Database» more  DBPL 2007»
15 years 4 months ago
Querying Structural and Behavioral Properties of Business Processes
BPQL is a novel query language for querying business process specifications, introduced recently in [5, 6]. It is based on an intuitive business processes as rewriting systems, an...
Daniel Deutch, Tova Milo
ICDE
2009
IEEE
165views Database» more  ICDE 2009»
15 years 11 months ago
Expressive Location-Based Continuous Query Evaluation with Binary Decision Diagrams
Many location-based services require rich and expressive query language support for filtering large amounts of information. In prominent location-based services thousands of conti...
Zhengdao Xu, Hans-Arno Jacobsen
VLDB
2008
ACM
140views Database» more  VLDB 2008»
15 years 10 months ago
Efficient temporal counting with bounded error
This paper studies aggregate search in transaction time databases. Specifically, each object in such a database can be modeled as a horizontal segment, whose y-projection is its s...
Yufei Tao, Xiaokui Xiao
DEBS
2007
ACM
15 years 1 months ago
Temporal order optimizations of incremental joins for composite event detection
Queries for composite events typically involve the four complementary dimensions of event data, event composition, relationships between events (esp. temporal and causal), and acc...
François Bry, Michael Eckert
VLDB
2001
ACM
123views Database» more  VLDB 2001»
15 years 2 months ago
User-Optimizer Communication using Abstract Plans in Sybase ASE
imizer Communication using Abstract Plans in Sybase ASE Query optimizers are error prone, due to both their nature and the increased search space that modern query processing requ...
Mihnea Andrei, Patrick Valduriez