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HPDC
2010
IEEE
13 years 8 months ago
Distributing the power of OLAP
In this paper we present the Brown Dwarf, a distributed system designed to efficiently store, query and update multidimensional data over an unstructured Peer-to-Peer overlay, wit...
Katerina Doka, Dimitrios Tsoumakos, Nectarios Kozi...
CORR
2008
Springer
113views Education» more  CORR 2008»
13 years 7 months ago
Expressing OLAP operators with the TAX XML algebra
With the rise of XML as a standard for representing business data, XML data warehouses appear as suitable solutions for Web-based decision-support applications. In this context, i...
Marouane Hachicha, Hadj Mahboubi, Jérô...
VLDB
1989
ACM
98views Database» more  VLDB 1989»
13 years 11 months ago
A Family of Incomplete Relational Database Models
In this paper. we utilize intervals for unknown values in incompleterelational databases.We usetablesto representunknown relations. First, we define three partial tuple types in a...
Adegbemiga Ola, Gultekin Özsoyoglu
INTERACT
2007
13 years 9 months ago
CubeExplorer: An Evaluation of Interaction Techniques in Architectural Education
During the early stages of architectural training, tangibility plays an important role in developing spatial awareness. In such contexts, tangible user interfaces are believed to p...
Hyunyoung Song, François Guimbretièr...
SAC
2010
ACM
14 years 2 months ago
Modeling cardinal directions in the 3D space with the objects interaction cube matrix
In GIS and spatial databases, cardinal directions are frequently used as selection and join criteria in query languages. However, most cardinal direction models are only able to h...
Tao Chen, Markus Schneider