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DMDW
2000
121views Management» more  DMDW 2000»
13 years 8 months ago
From enterprise models to dimensional models: a methodology for data warehouse and data mart design
This paper describes a method for developing dimensional models from traditional Entity Relationship models. This can be used to design data warehouses and data marts based on ent...
Daniel L. Moody, Mark A. R. Kortink
EKAW
2006
Springer
13 years 11 months ago
Multilayered Semantic Social Network Modeling by Ontology-Based User Profiles Clustering: Application to Collaborative Filtering
We propose a multilayered semantic social network model that offers different views of common interests underlying a community of people. The applicability of the proposed model to...
Iván Cantador, Pablo Castells
IDEAS
1999
IEEE
123views Database» more  IDEAS 1999»
13 years 11 months ago
Improving OLAP Performance by Multidimensional Hierarchical Clustering
Data-warehousing applications cope with enormous data sets in the range of Gigabytes and Terabytes. Queries usually either select a very small set of this data or perform aggregat...
Volker Markl, Frank Ramsak, Rudolf Bayer
PERCOM
2008
ACM
14 years 7 months ago
Topology Formation in IEEE 802.15.4: Cluster-Tree Characterization
The IEEE 802.15.4 standard defines a set of procedures to set-up a Low-Rate Wireless Personal Area Network where nodes self-organize into a logical communication structure through ...
Francesca Cuomo, Sara Della Luna, Petia Todorova, ...
CG
2004
Springer
13 years 7 months ago
Hierarchical graph maps
nd maps are powerful abstractions. Their combination, Hierarchical Graph Maps, provide effective tools to process a graph that is too large to fit on the screen. They provide hier...
James Abello