Statistical approach in cluster analysis of two-dimensional quasicrystals

2005 ◽  
Vol 61 (3) ◽  
pp. 350-357 ◽  
Author(s):  
Aleksandra Dąbrowska ◽  
Bartłomiej Kozakowski ◽  
Janusz Wolny
Keyword(s):  
Cluster Analysis ◽  
Statistical Approach ◽  
Two Dimensional

scholarly journals Psychometric properties and structures of passionate and companionate love

2016 ◽  
Vol 10 (1) ◽  
pp. 56-76 ◽  
Author(s):  
Victor Karandashev ◽  
Stuart Clapp
Keyword(s):  
Cluster Analysis ◽  
Empirical Study ◽  
Psychometric Properties ◽  
Principle Component Analysis ◽  
Romantic Relationship ◽  
Statistical Approach ◽  
Extensive Study ◽  
Psychometric Analysis ◽  
Multidimensional Model ◽  
Principle Component

After many decades of romantic relationship research, there is a new focus on a multidimensional model of love. This empirical study examines the multidimensionality and psychometrics of Passionate and Companionate love, based on an extensive study of 413 participants using Multidimensional Love Scale (MLS). A new statistical approach employed in this study explores the typology and structure of love. The statistical approach included the combination of Two-Step Cluster Analysis of cases and Principle Component Analysis of dimensions while using centered variable scores. The results reveal a typology of love based on its multidimensional structure. Further analysis revealed two main types of love: Passionate and Companionate, both containing several factors allowing for interpretation of their multidimensional structures. The MLS subscales and detailed psychometric analysis measuring specific love dimensions are incorporated to allow further research in other studies.

The Loyal Traveler: Examining a Typology of Service Patronage

1997 ◽  
Vol 35 (4) ◽  
pp. 2-10 ◽  
Author(s):  
Mark P. Pritchard ◽  
Dennis R. Howard
Keyword(s):  
Cluster Analysis ◽  
Discriminant Analysis ◽  
Service Providers ◽  
Two Dimensional ◽  
Composite Measure ◽  
The Third ◽  
Dimensional Matrix ◽  
Repeat Purchase ◽  
Clear Support

The first goal of this study was to determine whether Day's (1969) measure of loyalty could be extended to better understand travel service patronage. Findings provide clear support that this composite measure, of repeat purchase and loyal attitude, is an effective approach to distinguishing the loyal traveler. A cluster analysis that combined scores on the composite measure from 428 travelers supported a two-dimensional matrix that identified four types of loyalty: true, spurious, latent, and low. This accomplished the study's second purpose by confirming that the four distinct levels of loyalty exist in a variety of service settings. Discriminant analysis was used to achieve the third objective — To identify those characteristics that differentiate the truly loyal patron. The resulting profile found this traveler to be a highly satisfied, symbolically involved consumer drawn to those services that exhibit an empathetic, caring concern for their patrons. These findings generate a much clearer understanding of how service providers can measure and manage their returning patrons.

scholarly journals Cognitive and Emotional Aspects of Cupping Therapy

2020 ◽  
Vol 10 (3) ◽  
pp. 144 ◽  
Author(s):  
Minyoung Hong ◽  
In-Seon Lee ◽  
Yeonhee Ryu ◽  
Junsuk Kim ◽  
Younbyoung Chae
Keyword(s):  
Cluster Analysis ◽  
Healthy Volunteers ◽  
Cupping Therapy ◽  
Emotional States ◽  
Two Dimensional ◽  
Fear Of Pain ◽  
Public Attention ◽  
Emotional Aspects ◽  
Psychophysical Analysis ◽  
Valence And Arousal

Cupping therapy has recently gained public attention and is widely used in many regions. Some patients are resistant to being treated with cupping therapy, as visually unpleasant marks on the skin may elicit negative reactions. This study aimed to identify the cognitive and emotional components of cupping therapy. Twenty-five healthy volunteers were presented with emotionally evocative visual stimuli representing fear, disgust, happiness, neutral emotion, and cupping, along with control images. Participants evaluated the valence and arousal level of each stimulus. Before the experiment, they completed the Fear of Pain Questionnaire-III. In two-dimensional affective space, emotional arousal increases as hedonic valence ratings become increasingly pleasant or unpleasant. Cupping therapy images were more unpleasant and more arousing than the control images. Cluster analysis showed that the response to cupping therapy images had emotional characteristics similar to those for fear images. Individuals with a greater fear of pain rated cupping therapy images as more unpleasant and more arousing. Psychophysical analysis showed that individuals experienced unpleasant and aroused emotional states in response to the cupping therapy images. Our findings suggest that cupping therapy might be associated with unpleasant-defensive motivation and motivational activation. Determining the emotional components of cupping therapy would help clinicians and researchers to understand the intrinsic effects of cupping therapy.

Cluster analysis and multiplet pattern recognition in two-dimensional NMR spectra

1990 ◽  
Vol 89 (3) ◽  
pp. 543-552
Author(s):  
Klaus-Peter Neidig ◽  
Rainer Saffrich ◽  
Michael Lorenz ◽  
Hans Robert Kalbitzer
Keyword(s):  
Cluster Analysis ◽  
Pattern Recognition ◽  
Nmr Spectra ◽  
Two Dimensional

STATIC STATISTICAL APPROACH TO THE BTW SANDPILE MODEL

Fractals ◽  
2006 ◽  
Vol 14 (01) ◽  
pp. 55-61
Author(s):  
DAHUI WANG ◽  
WEITING CHEN ◽  
QIANG YUAN ◽  
ZENGRU DI
Keyword(s):  
Power Law ◽  
Stable Distribution ◽  
Particle Number ◽  
Statistical Approach ◽  
Negative Temperature ◽  
Two Dimensional ◽  
Power Law Distribution ◽  
Sandpile Model ◽  
Total Particle ◽  
The One

A static statistical approach to the Bak, Tang and Wiesenfeld (BTW) sandpile model is proposed. With this approach, the exact avalanche distribution of the one-dimensional BTW sandpile is given concisely. Furthermore, we investigate the two-dimensional BTW sandpile and obtain some interesting results. First, the total particle number of the two-dimensional BTW sandpile obeys some kind of stable distribution. With the increase of the sandpile scale, the stable distribution transits from Gamma to Normal distribution. Second, when the total number of particles is fixed, the avalanche distribution is not power law. The system, however, shows a kind of "negative temperature" phenomenon when the particle number increases. Third, power law distribution of the avalanche could be viewed as the result of the superposition of a series of weighted distributions which do not yield power law.

Perceptual and Motor Impairment within 2 Weeks after a Stroke: A Multifactorial Statistical Approach

1988 ◽  
Vol 8 (2) ◽  
pp. 114-125 ◽  
Author(s):  
Sture Eriksson ◽  
Birgitta Bernspång ◽  
Axel R. Fugl-Meyer
Keyword(s):  
Cluster Analysis ◽  
Visual Perception ◽  
Statistical Approach ◽  
Motor Behavior ◽  
Motor Impairment ◽  
Self Care ◽  
Factor Analyses ◽  
Functional Diagnosis ◽  
Two Factors ◽  
Perceptual Performance

Visual perceptual performance (12 items) and motor behavior were assessed in 109 patients within 2 weeks poststroke and were related to self-care activities of daily living (ADL) proficiency. A cluster analysis revealed that scores for motor behavior and self-care ADL were closely associated whereas visual-perception items could be separated into two groups One of these incorporated relatively meaningless (Low-Order Perception [L-OP]) and the other relatively meaningful (High-Order Perception [H-OP]) stimuli. When the disability parameter, ADL, was excluded factor analyses identified three orthogonal factors—motor behavior, H-OP, and L-OP—which were similar to those of the cluster analysis and explained about 75% of the variance. Standardized factor scores were sizable predictors for self-care ADL-score for motor behavior and H-OP, but not for L-OP. The present findings of grouping of visual perception into two factors are contradictory to espoused categorizations and may shed new light on occupational therapy research, functional diagnosis, and the treatment of stroke patients.

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