in recent years, the studies of location play a key role in success and stability of economic activities. location studies are under consideration in both national and international levels. meanwhile, identification of goals and methods of solving location problems have significant importance. the purpose of this paper is to examine spatial distribution of economic activities in 14 zones of esf...

BACKGROUND In this paper we apply the principal-component analysis filter (Hotelling filter) to reduce noise from dynamic positron-emission tomography (PET) patient data, for a number of different radio-tracer molecules. We furthermore show how preprocessing images with this filter improves parametric images created from such dynamic sequence.We use zero-mean unit variance normalization, prior ...

This paper considers alternative proofs of the Hotelling ́s Lemma and Shephard ́s Lemma using new relations of duality in the theory of the production. The proofs proposals possess two advantages, relatively to the usual demonstrations, which are, not the use of the known Enveolpe Theorem and the validity of the demonstration for interior points to the production set

Image quality can be defined objectively in terms of the performance of some "observer" (either a human or a mathematical model) for some task of practical interest. If the end user of the image will be a human, model observers are used to predict the task performance of the human, as measured by psychophysical studies, and hence to serve as the basis for optimization of image quality. In this ...

The resolution of a set of n tests o r other var ia tes into components 7~, each of which accounts for the greates t possible port ion 71, ~,~, . , of the total variance of the tests unaccounted for by the previous components, has been dealt with by the author in a previous paper (2). Such "factors ," on account of their analogy with the principal axes of a quadric, have been called principal c...

Sections 3 and 4 present the two versions of the model, which make different The model has a continuum of voters with unit mass and two candidates, 1 and 2. ABSTRACT We consider the Hotelling–Downs model with n 3 office-seeking candidates and runoff voting. We show that Nash equilibria in pure strategies. Congyi Xiang discover inside connections to recommended job candidates, industry January 2...

1 The author wishes to express his indebtedness to the Carnegie Corporation of New York for a research grant in support of our development of multiple factor analysis and its application to the study of primary mental abilities. 2 L. L. Thurstone, "Theory of Multiple Factors," 1932, pp. 17-27, Edward Brothers, Ann Arbor, Mich. 8 Harold Hotelling, "Analysis of a complex of statistical variables ...

The method of change (or anomaly) detection in high-dimensional discrete-time processes using a multivariate Hotelling chart is presented. We use normal random projections as a method of dimensionality reduction. We indicate diagnostic properties of the Hotelling control chart applied to data projected onto a random subspace of R. We examine the random projection method using artificial noisy i...