Results 41 to 50 of about 6,412 (177)
Towards OLAP analysis of multidimensional tweet streams
, 2015 Social media and networks are used by millions of people to share with their friends across the world: tastes, opinions, ideas, etc. The volume and the speed at which these data are produced make it a challenging task to discover meaningful patterns in ...
Loia, Vincenzo +11 more
core +1 more source
Sensitivity Analysis in OLAP Databases
Proceedings 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 +2 more sources
Demeter: An automatic framework for data migration in open data lakes
Software: Practice and Experience, Volume 54, Issue 5, Page 721-743, May 2024.Abstract An open data lake stores various forms and types of open data, and there is an increasing demand to manage raw data in tables rather than files for efficient data exploration and analysis. In this paper, we investigate the data management of open data lakes and recognize the limitations of table migration and related problems. First, open data
Dasol Kim +5 more
wiley +1 more source
, 2021 The article investigates the problems of reduction (decomposition) of multidimensional data models in terms of hypercube OLAP-structures. Describes the case when a data structure is defined by the array that slices and dices the hypercube into the odd ...
A. A. Akhrem +5 more
core +1 more source
Conversational OLAP in Action.
, 2021 The democratization of data access and the adoption of OLAP in scenarios requiring hand-free interfaces push towards the creation of smart OLAP interfaces. In this demonstration we present COOL, a tool supporting natural language COnversational OLap sessions.
Matteo Francia +2 more
openaire +2 more sources
Joe Celko's Analytics and OLAP in SQL
, 2006 Before SQL programmers could begin working with OLTP (On-Line Transaction Processing) systems, they had to unlearn procedural, record-oriented programming before moving on to SQLs declarative, set-oriented programming.
Celko, Joe., Celko, Joe
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A new era of financial services: How AI enhances investment efficiency
International Studies of Economics, Volume 19, Issue 4, Page 578-588, December 2024.
Zhiyi Liu, Kai Zhang, Hongyi Zhang
wiley +1 more source
Computational Methods for Spatial OLAP
, 2011 Data warehousing and On-line Analytical Processing (OLAP) are powerful tools for processing and analyzing business and analytical data. It is estimated that 80% of the data stored in data warehouses have some spatial components.
Baltzer, Oliver
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Conem: um modelo para representação e análise de informação de redes espaciais em data warehouses [PDF]
, 2012 Dissertação (mestrado) - Universidade Federal de Santa Catarina, Centro Tecnológico, Programa de Pós-graduação em Ciência da Computação, Florianópolis, 2011Um Data Warehouse Espaço-Temporal (DWET) manipula concomitantemente dados convencionais, espaciais
Vieira Filho, Sérgio Izack
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Solutions for decision support in university management [PDF]
The paper proposes an overview of decision support systems in order to define the role of a system to assist decision in university management. The authors present new technologies and the basic concepts of multidimensional data analysis using models of ...
Mihai FLORIN +3 more
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