We give a constructive characterization of morphisms between open sublocales of localic completions of locally compact metric (LCM) spaces, in terms of continuous functions. The category of open subspaces of LCM spaces is thereby shown to embed fully faithfully into the category of locales (or formal topologies). 2000 Mathematics Subject Classification 03F60, 18B30, 54E99 (primary)

In this paper we discuss two partially ordered sets and give a connection between max-min identity and GCD-LCM one.

The paper is aimed to investigate the performance of information criteria in selecting latent class analysis models which are often used in research of phenotype identification. Six information criteria and a sample size adjustment (Psychometrika 52 (1987) 333) are compared under various sample sizes and model dimensionalities. The simulation design is particularly meaningful for phenotypic res...

Latent class models offer an alternative perspective to the popular mixed logit form, replacing the continuous distribution with a discrete distribution in which preference heterogeneity is captured by membership of distinct classes of utility description. Within each class, preference homogeneity is usually assumed (i.e., fixed parameters), although interactions with observed contextual effect...

Keywords--Regress ion, Latent classes, Iteratively reweighted least squares. I. I N T R O D U C T I O N We consider simultaneous constructing of several regressions by subsets of a given data set. Such an approach corresponds to so-called latent class models known in various statistical applications [1-3]. Latent class techniques are applied in factor and scaling analyses [4-8], structural equa...

This paper studies simultaneous equations models for two or more discrete outcomes. The models allow latent variables to be high dimensional and require latent variables and covariates to be independently distributed. The models may be incoherent, delivering no values of the outcomes at certain values of the latent variables and covariates. The models may be incomplete, delivering more than one...

Studying the location of an airport is essential for optimizing its functionality, ensuring safety, and maximizing economic benefits. There are many airports located within a short distance each other, users can often choose to travel between one or other depending on number variables that they value their final choice. In this paper, we design stated preference survey estimate latent class log...

A fundamental question in e-commerce field is how to explain and predict sales performance of e-marketplace sellers. We draw on competitive repertoire perspective and strategic group theory to understand the interaction between competitive repertoire and strategic group membership in influencing sales performance over time. To empirically test these relationships, we will collect a longitudinal...