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» Supporting Streaming Updates in an Active Data Warehouse
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ECIS
2003
13 years 9 months ago
Real-time workflow audit data integration into data warehouse systems
Workflow management systems are being increasingly used by many organizations to automate business processes and decrease costs. Audit trails from workflow management systems incl...
Josef Schiefer, Jun-Jang Jeng, Robert M. Bruckner
VLDB
1998
ACM
111views Database» more  VLDB 1998»
13 years 12 months ago
Expiring Data in a Warehouse
Data warehouses collect data into materialized views for analysis. After some time, some of the data may no longer be needed or may not be of interest. In this paper, we handle th...
Hector Garcia-Molina, Wilburt Labio, Jun Yang 0001
VLDB
2007
ACM
124views Database» more  VLDB 2007»
14 years 1 months ago
Ad-hoc Top-k Query Answering for Data Streams
A top-k query retrieves the k highest scoring tuples from a data set with respect to a scoring function defined on the attributes of a tuple. The efficient evaluation of top-k q...
Gautam Das, Dimitrios Gunopulos, Nick Koudas, Niko...
SIGMOD
2004
ACM
128views Database» more  SIGMOD 2004»
14 years 7 months ago
Data Stream Management for Historical XML Data
We are presenting a framework for continuous querying of time-varying streamed XML data. A continuous stream in our framework consists of a finite XML document followed by a conti...
Sujoe Bose, Leonidas Fegaras
DOLAP
1999
ACM
13 years 12 months ago
Updating OLAP Dimensions
OLAP systems support data analysis through a multidimensional data model, according to which data facts are viewed as points in a space of application-related dimensions", or...
Carlos A. Hurtado, Alberto O. Mendelzon, Alejandro...