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DKE
1999
118views more  DKE 1999»
13 years 7 months ago
Designing Data Warehouses
A Data Warehouse DW is a database that collects and stores data from multiple remote and heterogeneous information sources. When a query is posed, it is evaluated locally, without...
Dimitri Theodoratos, Timos K. Sellis
DAWAK
2005
Springer
13 years 9 months ago
Incremental Data Mining Using Concurrent Online Refresh of Materialized Data Mining Views
Abstract. Data mining is an iterative process. Users issue series of similar data mining queries, in each consecutive run slightly modifying either the definition of the mined dat...
Mikolaj Morzy, Tadeusz Morzy, Marek Wojciechowski,...
DBPL
1997
Springer
87views Database» more  DBPL 1997»
13 years 11 months ago
Incremental Recomputation of Recursive Queries with Nested Sets and Aggregate Functions
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...
Leonid Libkin, Limsoon Wong
DEXAW
2002
IEEE
159views Database» more  DEXAW 2002»
14 years 13 days ago
Data Warehouse Clustering on the Web
In collaborative e-commerce environments, interoperation is a prerequisite for data warehouses that are physically scattered along the value chain. Adopting system and information...
Aristides Triantafillakis, Panagiotis Kanellis, Dr...
ISI
2003
Springer
14 years 20 days ago
Active Database Systems for Monitoring and Surveillance
In many intelligence and security tasks it is necessary to monitor data in database in order to detect certain events or changes. Currently, database systems offer triggers to pro...
Antonio Badia