Results 31 to 40 of about 6,412 (177)

Optimistic Multigranulation Roughness of Spherical Fuzzy Set Based on Soft Binary Relations and Its Applications to Multicriteria Decision‐Making Problems

open access: yesJournal of Function Spaces, Volume 2025, Issue 1, 2025.
A multigranulation roughness over dual universes establishes a unique viewpoint on the mixture of multigranulation data. Spherical fuzzy set is an extension of all existing theories such as fuzzy set, pythagorean fuzzy set, intuitionistic fuzzy set, and picture fuzzy set.
Rabia Mazhar   +4 more
wiley   +1 more source

OLAP система анализа [PDF]

open access: yes, 2023
Статья посвящена OLAP системе анализа обработки данных. Описана общая информация о системе OLAP.
МАКЕЕВ, Никита
core  

Enhanced calendar support for temporal datacube queries

open access: yesTransactions in GIS, Volume 28, Issue 7, Page 2089-2112, November 2024.
Abstract A significant share of our data are timeseries. Time can occur as the single dimension, or further (such as spatial) dimensions can be present as well, leading to multidimensional data such as 3D x/y/t satellite image timeseries or 4D x/y/z/t atmospheric simulations like weather forecasts.
Peter Baumann   +3 more
wiley   +1 more source

Liquidity forecasting at corporate and subsidiary levels using machine learning

open access: yesIntelligent Systems in Accounting, Finance and Management, Volume 31, Issue 3, September 2024.
Summary Liquidity planning and forecasting are essential activities in corporate financial planning team. Traditionally, empirical models and techniques based on in‐house expertise have been used to navigate the numerous challenges of this forecasting activity.
Vinay Singh   +2 more
wiley   +1 more source

On the Abnormally Strong Westward Phase of the Mesospheric Semiannual Oscillation at Low Latitudes During March Equinox 2023

open access: yesGeophysical Research Letters, Volume 51, Issue 16, 28 August 2024.
Abstract Different meteor radars at low latitudes observed abnormally strong westward mesospheric winds around the March Equinox of 2023, that is, during the first phase of the Mesospheric Semiannual Oscillation. This event was the strongest of at least the last decade (2014–2023).
Jose Suclupe   +12 more
wiley   +1 more source

Datacubes as enabler for advanced decision support systems in land management

open access: yesLand Degradation &Development, Volume 35, Issue 11, Page 3579-3592, 15 July 2024.
Abstract Informed, wise, land management has been a challenge since a long time, but has gained extra importance through the need for responding to climate change effects. The European Green Deal is one example of a concertation effort in a world where data availability, sharing options, and just‐in‐time exploitation are not entirely solved.
Peter Baumann   +4 more
wiley   +1 more source

Analyse multigraduelle OLAP

open access: yesCoRR, 2010
Decisional systems are based on multidimensional databases improving OLAP analyses. The paper describes a new OLAP operator named "BLEND" to perform multigradual analyses. The operation transforms multidimensional structures during querying in order to analyse measures according to various granularity levels, which are reorganised into a single ...
Gilles Hubert 0001, Olivier Teste
openaire   +2 more sources

XQuery & OLAP

open access: yes, 2009
Online Analytical Processing on XML became a topic in the database research community, which is mostly due to the possibilities of XML to overcome the constraints of the relational multidimensional model. This pager gives an overview of changes and challenges in terms of storing multidimensional heterogeneous data in XML and how to query it.
openaire   +1 more source

A Formal Algebra for OLAP

open access: yesCoRR, 2016
Online Analytical Processing (OLAP) comprises tools and algorithms that allow querying multidimensional databases. It is based on the multidimensional model, where data can be seen as a cube, where each cell contains one or more measures can be aggregated along dimensions.
KUIJPERS, Bart, VAISMAN, Alejandro
openaire   +2 more sources

The ancestral karyotype of the Heliantheae Alliance, herbicide resistance, and human allergens: Insights from the genomes of common and giant ragweed

open access: yesThe Plant Genome, Volume 17, Issue 2, June 2024.
Abstract Ambrosia artemisiifolia and Ambrosia trifida (Asteraceae) are important pest species and the two greatest sources of aeroallergens globally. Here, we took advantage of a hybrid to simplify genome assembly and present chromosome‐level assemblies for both species.
Martin Laforest   +6 more
wiley   +1 more source

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