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» Processing Forecasting Queries
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WWW
2005
ACM
16 years 7 months ago
Automatic identification of user goals in Web search
There have been recent interests in studying the "goal" behind a user's Web query, so that this goal can be used to improve the quality of a search engine's re...
Uichin Lee, Zhenyu Liu, Junghoo Cho
VLDB
2007
ACM
260views Database» more  VLDB 2007»
16 years 6 months ago
Approaching the Skyline in Z Order
Given a set of multidimensional data points, skyline query retrieves a set of data points that are not dominated by any other points. This query is useful for multi-preference ana...
Ken C. K. Lee, Baihua Zheng, Huajing Li, Wang-Chie...
SIGMOD
2009
ACM
218views Database» more  SIGMOD 2009»
16 years 6 months ago
DejaVu: declarative pattern matching over live and archived streams of events
DejaVu is an event processing system that integrates declarative pattern matching over live and archived streams of events on top of a novel system architecture. We propose to dem...
Nihal Dindar, Baris Güç, Patrick Lau, ...
SIGMOD
2007
ACM
170views Database» more  SIGMOD 2007»
16 years 6 months ago
Cardinality estimation using sample views with quality assurance
Accurate cardinality estimation is critically important to high-quality query optimization. It is well known that conventional cardinality estimation based on histograms or simila...
Per-Åke Larson, Wolfgang Lehner, Jingren Zho...
ICDE
2007
IEEE
145views Database» more  ICDE 2007»
16 years 20 days ago
A Data Model for Moving Objects Supporting Aggregation
Moving objects databases (MOD) have been receiving increasing attention from the database community in recent years, mainly due to the wide variety of applications that technology...
Bart Kuijpers, Alejandro A. Vaisman