Results 11 to 20 of about 5,859,578 (148)

On Classification of High-Cardinality Data Streams

open access: yesSDM, 2010
The problem of massive-domain stream classification is one in which each attribute can take on one of a large number of possible values. Such streams often arise in applications such as IP monitoring, super-store transactions and financial data.
C. Aggarwal, Philip S. Yu
semanticscholar   +1 more source

New cardinality notations and styles for modeling NoSQL document-store databases

open access: yesIEEE Region 10 Conference, 2017
Nowadays, data with several characteristics such as volume, variety etc. are generated daily, i.e. big data; its complexity cannot be overemphasized. On the other hand, schema free NoSQL databases keep emerging at almost the same phase to accommodate ...
A. A. Imam   +4 more
semanticscholar   +1 more source

Transformasi Skema Basis Data Relasional Menjadi Model Data Berorientasi Dokumen pada MongoDB

open access: yesIJCCS (Indonesian Journal of Computing and Cybernetics Systems), 2016
MongoDB is a database that uses document-oriented data storage models. In fact, to  migrate from a relational database to NoSQL databases such as MongoDB is not an easy matter especially if the data are extremely complex.
I Gede Winaya, Ahmad Ashari
doaj   +1 more source

Analytics of Heterogeneous Breast Cancer Data Using Neuroevolution

open access: yesIEEE Access, 2019
Breast cancer prognostic modeling is difficult since it is governed by many diverse factors. Given the low median survival and large scale breast cancer data, which comes from high throughput technology, the accurate and reliable prognosis of breast ...
Beibit Abdikenov   +4 more
doaj   +1 more source

Distribution of Time Interval between the Modifications of Result Sets Cardinalities in Random Databases

open access: yesAnalele Stiintifice ale Universitatii Ovidius Constanta: Seria Matematica, 2013
In this paper, we propose a method to estimate the probability distribution of the time interval which ellapses between the modifications of the cardinality in a random database query’s result set.
Velcescu Letitia
doaj   +1 more source

High-cardinality categorical covariates in network regressions

open access: yesJapanese Journal of Statistics and Data Science
High-cardinality (nominal) categorical covariates are challenging in regression modeling, because they lead to high-dimensional models. For example, in generalized linear models (GLMs), categorical covariates can be implemented by dummy coding which ...
Ronald Richman, M. Wüthrich
semanticscholar   +1 more source

A unifying model for representing time-varying graphs [PDF]

open access: yesInternational Conference on Data Science and Advanced Analytics, 2014
Graph-based models form a fundamental aspect of data representation in Data Sciences and play a key role in modeling complex networked systems. In particular, recently there is an ever-increasing interest in modeling dynamic complex networks, i.e ...
Klaus Wehmuth, A. Ziviani, E. Fleury
semanticscholar   +1 more source

Dual deep modeling: multi-level modeling with dual potencies and its formalization in F-Logic

open access: yesJournal of Software and Systems Modeling, 2016
An enterprise database contains a global, integrated, and consistent representation of a company’s data. Multi-level modeling facilitates the definition and maintenance of such an integrated conceptual data model in a dynamic environment of changing data
B. Neumayr   +3 more
semanticscholar   +1 more source

Efficient AI-Driven Query Optimization in Large-Scale Databases: A Reinforcement Learning and Graph-Based Approach

open access: yesMathematics
As data-centric applications become increasingly complex, understanding effective query optimization in large-scale relational databases is crucial for managing this complexity.
Najla Sassi, Wassim Jaziri
doaj   +1 more source

Multi-Criteria Fuzzy Portfolio Optimization Considering Varying Levels of Investor Expectations [PDF]

open access: yesتحقیقات مالی
ObjectiveThe objective of the present research is the optimization of investment portfolios, considering all significant criteria for investors in a fuzzy environment, and taking into account various levels of investor expectations for each criterion ...
Ali Namaki   +2 more
doaj   +1 more source

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