We analyze the discriminatory power of k-nearest neighbors, logistic regression, artificial neural networks (ANNs), decision tress, and support vector machines (SVMs) on the task of classifying pigmented skin lesions as common nevi, dysplastic nevi, or melanoma. Three different classification tasks were used as benchmarks: the dichotomous problem of distinguishing common nevi from dysplastic ne...

We study hedonic games with dichotomous preferences. Hedonic games are cooperative games in which players desire to form coalitions, but only care about the makeup of the coalitions of which they are members; they are indifferent about the makeup of other coalitions. The assumption of dichotomous preferences means that, additionally, each player’s preference relation partitions the set of coali...

cost optimization of the reinforced concrete cantilever soil retaining wall of a given height satisfying some structural and geotechnical design constraints is performed utilizing harmony search and improved harmony search algorithms. the objective function considered is the cost of the structure, and design is based on aci 318-05. this function is minimized subjected to design constraints. a n...

S hould scholars use intermediate categories to measure differences between democratic and nondemocratic regimes? In a series of influential studies, Przeworski, Alvarez, Cheibub, and Limongi describe this practice as "ludicrous" and insist on dichotomous measures (Alvarez et al. 1996, 21; Przeworski et al. 1996; Przeworski and Limongi 1997, 178-179). Their position, which is shared by other pr...

Mixture factor analysis is examined as a means of flexibly estimating nonnormally distributed continuous latent factors in the presence of both continuous and dichotomous observed variables. A simulation study compares mixture factor analysis with normal maximum likelihood (ML) latent factor modeling. Different results emerge for continuous versus dichotomous outcomes. For dichotomous outcomes,...

Objective: To validate the content of an instrument for nursing consultation with people venous ulcers. Methodology: Methodological study internal validation based on judgment enterostomal therapist judges, whose identification occurred through a search Lattes Platform. The process in months January and February 2019 24 experts participated. Data regarding evaluation query were compiled Microso...

Objective: To validate the content of an instrument for nursing consultation with people venous ulcers. Methodology: Methodological study internal validation based on judgment enterostomal therapist judges, whose identification occurred through a search Lattes Platform. The process in months January and February 2019 24 experts participated. Data regarding evaluation query were compiled Microso...

The Dichotomous Thinking in Eating Disorders Scale (DTEDS) is a short, self-report measure that can be used to assess the presence of a rigid, "black-and-white" cognitive thinking style. It was originally developed for use in a study of psychological predictors of weight regain in obesity. The DTEDS consists of two subscales. Items on the Eating subscale assess dichotomous thinking with regards...

The KT-1000 knee arthrometer (KT-1000) is an objective instrument to measure anterior tibial motion relative to the femur for anterior cruciate ligament (ACL) reconstruction. Four studies between 1950 and 2007 regarding validity of the KT-1000 were identified using a Medline search. One had interpretable information on sensitivities, specificities, and predictive values to validate the instrume...