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» A conceptual model for attribute aggregation
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SIGMOD
2008
ACM
191views Database» more  SIGMOD 2008»
14 years 7 months ago
Efficient aggregation for graph summarization
Graphs are widely used to model real world objects and their relationships, and large graph datasets are common in many application domains. To understand the underlying character...
Yuanyuan Tian, Richard A. Hankins, Jignesh M. Pate...
DMDW
2003
134views Management» more  DMDW 2003»
13 years 9 months ago
Using Design Guidelines to Improve Data Warehouse Logical Design
Data Warehouse-(DW) logical design often start with a conceptual schema and then generates relational structures. Applying this approach implies to cope with two main aspects: (i) ...
Verónika Peralta, Raul Ruggia
ICDE
2012
IEEE
228views Database» more  ICDE 2012»
11 years 10 months ago
A General Method for Estimating Correlated Aggregates over a Data Stream
—On a stream of two dimensional data items (x, y) where x is an item identifier, and y is a numerical attribute, a correlated aggregate query requires us to first apply a selec...
Srikanta Tirthapura, David P. Woodruff
CAISE
2005
Springer
14 years 1 months ago
BInXS: A Process for Integration of XML Schemata
This paper presents a detailed integration process for XML schemata called BInXS. BInXS adopts a global-as-view integration approach that builds a global schema from a set of heter...
Ronaldo dos Santos Mello, Carlos A. Heuser
ICCSA
2009
Springer
14 years 2 months ago
Designing Data Warehouses for Geographic OLAP Querying by Using MDA
Data aggregation in Geographic Information Systems (GIS) is a desirable feature, spatial data are integrated in OLAP engines for this purpose. However, the development and operatio...
Octavio Glorio, Juan Trujillo