Zobrazeno 1 - 10 of 326 pro vyhledávání: '"jel:C88"'
1
‘Size’ and ‘shape’ in the measurement of multivariate proximity
Autor: Michael Greenacre
Publikováno v: Methods in Ecology and Evolution. 8:1415-1424
Summary Ordination and clustering methods are widely applied to ecological data that are non-negative, for example, species abundances or biomasses. These methods rely on a measure of multivariate proximity that quantifies differences between the sam
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::f6016da75f689b9a35a65b18ea4f4669
https://doi.org/10.1111/2041-210x.12776
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2
Efficient skewness/semivariance portfolios
Autor: Helder Sebastião, Rui Pedro Brito, Pedro Godinho
Publikováno v: Repositório Científico de Acesso Aberto de Portugal
Repositório Científico de Acesso Aberto de Portugal (RCAAP)
instacron:RCAAP
This paper proposes a new way to measure and deal with risk within the portfolio selection problem using a skewness/semivariance biobjective optimization framework. The solutions of this biobjective optimization problem allow the investor to analyse
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::a8417c3e6a810f841ec217189d58b527
https://doi.org/10.1057/jam.2016.9
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3
Weighted Euclidean Biplots
Autor: Michael Greenacre, Patrick J. F. Groenen
Publikováno v: Journal of Classification, 33, 442-459. Springer New York
We construct a weighted Euclidean distance that approximates any distance or dissimilarity measure between individuals that is based on a rectangular cases-by-variables data matrix. In contrast to regular multidimensional scaling methods for dissimil
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::ff357f2853e733660a25096b644a2e4d
https://pure.eur.nl/en/publications/fb2f1b4e-c5d1-4977-9f33-bf29414ca95b
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4
Developing an online collaborative system within the domain of financial auditing
Autor: Pavel Nastase, Lucian Cristian Eni
Publikováno v: Amfiteatru Economic, Vol 17, Iss 39, Pp 823-835 (2015)
The research paper, focused on a rather technical approach, has the goal to design a system that brings together diverse audit stakeholders and investigates how an audit database available online can be implemented in SharePoint, as part of an on-lin
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=dedup_wf_001::74c19a3bd3a645840c1f3a1dfe59f531
http://www.amfiteatrueconomic.ro/ArticolEN.aspx?CodArticol=2428
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5
BIG DATA IN BUSINESS ENVIRONMENT
Autor: Logica BANICA, Alina HAGIU
Publikováno v: Buletin ştiinţific: Universitatea din Piteşti. Seria Ştiinţe Economice, Vol 14, Iss 1, Pp 79-86 (2015)
In recent years, dealing with a lot of data originating from social media sites and mobile communications among data from business environments and institutions, lead to the definition of a new concept, known as Big Data. The economic impact of the s
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=dedup_wf_001::e7f7833373be2e47d0691621e5a9cd43
http://economic.upit.ro/repec/pdf/2015_1_10.pdf
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6
Guyana: A Half a Century of Struggles with Planning, Growth, and Development
Autor: RAMRATTAN, Lall B.
Publikováno v: Journal of Economics and Political Economy; Vol 2, No 1 (2015): March; 42-68
Guyana was a proving ground for both the capitalist and socialist development ideas in the latter half of the 20th century. We analyze the problems and solutions for those experiment from the point of views of appraising their performances. Tradition
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=dedup_wf_001::6b0bf98e0dc90791ac33be681e38de5e
http://www.kspjournals.org/index.php/JEPE/article/download/150/248
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8
STUDY ON THE IMPACT OF QUALITY OF SERVICE ON THE QUALITY OF EXPERIENCE IN MULTIMEDIA ENVIRONMENTS
Autor: Catalina Felicia Mancas
Publikováno v: Annals of Computational Economics. 1(43):257-266
Providing a guarantee for the customer satisfaction is essential nowadays in multiple domains. A user-centric approach has become a necessity since user satisfaction represents a key performance indicator for the providers; a metric, providers can us
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=od_______645::51f0938c02b6c9f9652a2689354f5549
http://feaa.ucv.ro/AUCSSE/0043v1-026.pdf
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9
Portfolio management with higher moments: the cardinality impact
Autor: Pedro Godinho, Helder Sebastião, Rui Pedro Brito
Publikováno v: Repositório Científico de Acesso Aberto de Portugal
Repositório Científico de Acesso Aberto de Portugal (RCAAP)
instacron:RCAAP
In this paper we extend the study of the cardinality impact from the standard mean-variance scenario to higher moments, considering a utility maximization framework. For each scenario, we propose a bi-objective model that allows the investor to direc
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::fd6a0880f175aa910e399afc9f0c7dfe
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10
Integrating R and Hadoop for Big Data Analysis
Autor: Bogdan Oancea, Raluca Mariana Dragoescu
Publikováno v: Revista Română de Statistică, Vol 62, Iss 2, Pp 83-94 (2014)
Analyzing and working with big data could be very diffi cult using classical means like relational database management systems or desktop software packages for statistics and visualization. Instead, big data requires large clusters with hundreds or e
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::b4c193aacb563ad86b7bbe0daa2a5443
http://www.revistadestatistica.ro/wp-content/uploads/2014/07/RRS_2_2014_a08.pdf
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