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pro vyhledávání: '"Alexander H. Foss"'
Autor:
Alexander H. Foss, Marianthi Markatou
Publikováno v:
Journal of Statistical Software, Vol 83, Iss 1, Pp 1-44 (2018)
In this paper we discuss the challenge of equitably combining continuous (quantitative) and categorical (qualitative) variables for the purpose of cluster analysis. Existing techniques require strong parametric assumptions, or difficult-to-specify tu
Externí odkaz:
https://doaj.org/article/69561c615ddb4d7dba49a86222491a41
Publikováno v:
AERA Open, Vol 4 (2018)
The purpose of this study was to assess the effect of flipping the classroom on final exam scores in a terminal general education college mathematics course for a diverse student population. We employed a quasiexperimental design. Seven instructors c
Externí odkaz:
https://doaj.org/article/8fdf35020e034c31b340ebba3b4f792d
Publikováno v:
International Statistical Review. 87:80-109
In spite of the abundance of clustering techniques and algorithms, clustering mixed interval (continuous) and categorical (nominal and/or ordinal) scale data remain a challenging problem. In order to identify the most effective approaches for cluster
Autor:
Marianthi Markatou, Alexander H. Foss
Publikováno v:
Journal of Statistical Software, Vol 83, Iss 1, Pp 1-44 (2018)
Journal of Statistical Software; Vol 83 (2018); 1-44
Journal of Statistical Software; Vol 83 (2018); 1-44
In this paper we discuss the challenge of equitably combining continuous (quantitative) and categorical (qualitative) variables for the purpose of cluster analysis. Existing techniques require strong parametric assumptions, or difficult-to-specify tu
Publikováno v:
Machine Learning. 105:419-458
Despite the existence of a large number of clustering algorithms, clustering remains a challenging problem. As large datasets become increasingly common in a number of different domains, it is often the case that clustering algorithms must be applied
Publikováno v:
Journal of LGBT Youth. 11:107-124
This study examined pubertal maturation, pubertal timing and outcomes, and the relationship of puberty and sexual identity developmental milestones among 507 lesbian, gay, and bisexual youth. The onset of menarche and spermarche occurred at the mean
Publikováno v:
Rare Diseases
This review addresses difficulties arising in estimating epidemiological parameters of leukodystrophies and lysosomal storage disorders, with special focus on Krabbe disease. Although multiple epidemiological studies of Krabbe disease have been publi
Publikováno v:
American journal of medical genetics. Part A. (11)
Leukodystrophies (LD) and lysosomal storage disorders (LSD) have generated increased interest recently as targets for newborn screening programs. Accurate epidemiological benchmarks are needed in the U.S. Age-specific mortality rates were estimated f
Publikováno v:
Neuroreport. 18(15)
Millennia ago Pythagoras noted a simple but remarkably powerful rule for the aesthetics of tone combinations: pairs of tones – intervals – with simple ratios such as an octave (ratio 2 : 1) or a fifth (ratio 3 : 2) were pleasant sounding (consona
Publikováno v:
Journal of Vision. 10:661-661