Results 11 to 20 of about 24,840,318 (307)

Profile Monitoring for Compositional Data

open access: yesRevista Colombiana de Estadística, 2014
In a growing number of quality control applications, the quality of a product or process is best characterized and summarized by a functional relationship between a response variable and one or more explanatory variables.
RUBÉN DARÍO GUEVARA-GONZÁLEZ   +2 more
doaj   +3 more sources

Privacy in Data Service Composition [PDF]

open access: yesIEEE Transactions on Services Computing, 2020
In modern information systems different information features, about the same individual, are often collected and managed by autonomous data collection services that may have different privacy policies. Answering many end-users' legitimate queries requires the integration of data from multiple such services.
Barhamgi, Mahmoud   +5 more
openaire   +4 more sources

Biplots of Compositional Data [PDF]

open access: yesJournal of the Royal Statistical Society Series C: Applied Statistics, 2002
Summary The singular value decomposition and its interpretation as a linear biplot have proved to be a powerful tool for analysing many forms of multivariate data. Here we adapt biplot methodology to the specific case of compositional data consisting of positive vectors each of which is constrained to have unit sum.
J. Aitchison, Michael Greenacre
openaire   +3 more sources

Composite Replicated Data Types [PDF]

open access: yes, 2015
Modern large-scale distributed systems often rely on eventually consistent replicated stores, which achieve scalability in exchange for providing weak semantic guarantees. To compensate for this weakness, researchers have proposed various abstractions for programming on eventual consistency, such as replicated data types for resolving conflicting ...
Alexey Gotsman, Hongseok Yang
openaire   +1 more source

Artificial neural networks to impute rounded zeros in compositional data [PDF]

open access: yes, 2020
Methods of deep learning have become increasingly popular in recent years, but they have not arrived in compositional data analysis. Imputation methods for compositional data are typically applied on additive, centered or isometric log-ratio ...
Matthias Templ, Templ, Matthias
core   +1 more source

Geochemical records in subaerial exposure environments in Croatia using discriminant function analysis of bauxite data

open access: yesFrontiers in Earth Science, 2023
Croatian bauxites are long known for their chemical and physical diversity arisen from their characteristic origin and emplacement within the area of the Adriatic–Dinaric carbonate platform (ADCP).
Nikolina Ilijanić   +5 more
doaj   +1 more source

Interpretable Log Contrasts for the Classification of Health Biomarkers: a New Approach to Balance Selection

open access: yesmSystems, 2020
Since the turn of the century, technological advances have made it possible to obtain the molecular profile of any tissue in a cost-effective manner. Among these advances are sophisticated high-throughput assays that measure the relative abundances of ...
Thomas P. Quinn, Ionas Erb
doaj   +1 more source

Correlations in Compositional Data without Log Transformations

open access: yesAxioms, 2023
This article proposes a method for determining the p-value of correlations in compositional data, i.e., those data that arise as a result of dividing original values by their sum.
Yury V. Monich, Yury D. Nechipurenko
doaj   +1 more source

Geostatistics for Compositional Data: An Overview

open access: yesMathematical Geosciences, 2018
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Tolosana-Delgado, R.   +4 more
openaire   +3 more sources

Thurstonian Scaling of Compositional Questionnaire Data [PDF]

open access: yes, 2016
To prevent response biases, personality questionnaires may use comparative response formats. These include forced choice, where respondents choose among a number of items, and quantitative comparisons, where respondents indicate the extent to which ...
Anna Brown (822232), Brown, Anna
core   +1 more source

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