Results 1 to 10 of about 27,829 (236)

Sensitivity Analysis in OLAP Databases

open access: greenProceedings of the 20th International Conference on Enterprise Information Systems, 2018
The theoretical underpinnings under which sensitivity analysis is valid in OLAP databases are dealt with in this paper. Sensitivity analysis is considered to be the reverse of explanation generation in diagnostic reasoning. Our exposition differentiates between sensitivity analysis in systems of purely drill-down equation and mixed systems of equations
Caron, Emiel, Daniels, Hennie
openaire   +4 more sources

n-Dimensional intuitionistic fuzzy index matrix representation of multidimensional data partitioning methods [PDF]

open access: yesNotes on IFS, 2023
In the present research paper, the data partitioning operations are investigated. Their functionalities are discussed. n-dimensional intuitionistic fuzzy index matrix is used to represent the multidimensional data partitioning.
Veselina Bureva, Krassimir T. Atanassov
doaj   +1 more source

Pervasive Real-Time Analytical Framework—A Case Study on Car Parking Monitoring

open access: yesInformation, 2023
Due to the amount of data emerging, it is necessary to use an online analytical processing (OLAP) framework capable of responding to the needs of industries.
Francisca Barros   +3 more
doaj   +1 more source

Olimpíada brasileira de informática no município de Videira/SC: ferramenta web para avaliar o perfil dos competidores [PDF]

open access: yesRevista de Gestão e Avaliação Educacional, 2020
Neste texto se apresenta um trabalho que teve como objetivo a criação de uma ferramenta que permitisse realizar consultas analíticas online - olaps - sobre os dados dos competidores das escolas de Videira/SC que participaram da Olimpíada Brasileira de ...
Leila Lisiane Rossi   +3 more
doaj   +1 more source

FPGA-based heterogeneous acceleration study for multidimensional cubing [PDF]

open access: yesITM Web of Conferences, 2022
Today’s information processing not only faces an explosion of data volume and data dimensions, but also has to meet the growing user requirements for timeliness.
Meng Yuan, Yang Jun, Li Jun
doaj   +1 more source

Prognostic risk estimates of patients with multiple sclerosis and their physicians: comparison to an online analytical risk counseling tool. [PDF]

open access: yesPLoS ONE, 2013
BACKGROUND: Prognostic counseling in multiple sclerosis (MS) is difficult because of the high variability of disease progression. Simultaneously, patients and physicians are increasingly confronted with making treatment decisions at an early stage, which
Christoph Heesen   +8 more
doaj   +1 more source

StreamingCube: Seamless Integration of Stream Processing and OLAP Analysis

open access: yesIEEE Access, 2020
Many organizations require real-time analysis of their business data streams to make instantaneous decisions. Data streams are often multidimensional and at the lowest level of abstraction, yet analysts are interested in their multilevel interactive ...
Salman Ahmed Shaikh, Hiroyuki Kitagawa
doaj   +1 more source

A New Big Data Benchmark for OLAP Cube Design Using Data Pre-Aggregation Techniques

open access: yesApplied Sciences, 2020
In recent years, several new technologies have enabled OLAP processing over Big Data sources. Among these technologies, we highlight those that allow data pre-aggregation because of their demonstrated performance in data querying.
Roberto Tardío   +2 more
doaj   +1 more source

Design and Implementation of OLAP System for Distributed Data Warehouse [PDF]

open access: yesAl-Rafidain Journal of Computer Sciences and Mathematics, 2013
Data warehousing and on-line analytical processing (OLAP) are essential elements of decision support, which has increasingly become a focus of the database industry.
Murtadha Hamad, Abdullah Mahdi
doaj   +1 more source

Expressing OLAP Preferences [PDF]

open access: yes, 2009
Multidimensional databases play a relevant role in statistical and scientific applications, as well as in business intelligence systems. Their users express complex OLAP queries, often returning huge volumes of facts, sometimes providing little or no information. Thus, expressing preferences could be highly valuable in this domain.
GOLFARELLI, MATTEO, RIZZI, STEFANO
openaire   +2 more sources

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