In this paper, I consider the social choice problems such that (i) the set of alternatives can be categorized into two groups based on some prominent and objective feature and (ii) the agents have strict preferences over the candidates. I introduce a notion of linear dichotomous domains to describe a class of plausible preference profiles in these social choice problems. My main result is a cha...

The R package ltm has been developed for the analysis of multivariate dichotomous and polytomous data using latent variable models, under the Item Response Theory approach. For dichotomous data the Rasch, the Two-Parameter Logistic, and Birnbaum’s Three-Parameter models have been implemented, whereas for polytomous data Semejima’s Graded Response model is available. Parameter estimates are obta...

The purpose of this qualitative study is to explore the perception of managers and talents of perceived retention factors in the textile industry in Yazd province, Iran. In this regard, phenomenography is used to map the different perceptions of both talents and their managers. Data were collected through semi-structured interviews with 22 talented individuals who were selected according to an ...

Recent experiments in normal subjects using neuroimaging demonstrate that the dorsal cortico-cortical pathway is involved during purely perceptual activities. Pathological cases with right posterior parietal lesions show deficits in visuospatial perception. It is argued that the radical dichotomy between perception and action pathways, as heralded in Milner and Goodale's book should be reexamin...

A reliability study is assumed to be carried out with each of a number of observers making a dichotomous ]udgment concerning each of a sample of subjects. A nonparametric model is proposed for the errors underlying such judgments, and conditions are given under which Cochran's Q statistic is valid for testing the hypothesis of no systematic differences among the judgments of the different obser...

This paper presents optimal collective dichotomous choices under quota constraints. We focus on committees that have to decide whether to accept or reject a set of projects under quota constraints. We provide a method for optimal ranking of projects which is suitable for solving this problem. The main result generalizes a number of earlier results in the subject. To outline the applicability of...

We consider two data-structuring problems which involve performing priority queue (pq) operations on a set of integers in the range 0 . . 2 − 1 on a unit-cost RAM with word size w bits. A monotone min-PQ has the property that the minimum value stored in the pq is a non-decreasing function of time. We give a monotone minpq that, starting with an empty set, processes a sequence of n insert and de...

UNLABELLED Dichotomy is an ancient principle of categorisation, where a class is divided into two jointly exhaustive and mutually disjoint categories. The principle as a general requirement was abandoned during the middle. The recent inquiry shows that studying this principle is still worthwhile and in some cases it can be used as a quality assessment tool. The paper presents algorithms that ca...