Άρθρα/Articles
Σύνολο αποτελεσμάτων: 109, εμφανίζονται 1 - 10
Αποτελέσματα ανά σελίδα:  10  25  50  100
Ταξινόμηση ανά: Ημερομηνία · Επισκέψεις · Τίτλο
1 A comparative study of algorithms for solving seemingly unrelated regressions models
Kontoghiorghes, Erricos John Belsley, David A. Foschi, Paolo,
The computational efficiency of various algorithms for solving seemingly unrelated regressions (SUR) models is investigated. Some of the algorithms adapt known methods; others are new. The first trans...
2003
2 A computationally efficient method for solving sur models with orthogonal regressor
Kontoghiorghes, Erricos John Foschi, Paolo,
A computationally efficient method to estimate seemingly unrelated regression equations models with orthogonal regressors is presented. The method considers the estimation problem as a generalized lin...
2004
3 A conceptual application of cooperative game theory to liner shipping strategic alliances
Panayides, Photis M. Song, DongWook,
Since its advent, the liner shipping industry has been characterized by fierce competition and cooperation amongst the member carriers. In recent years, almost all the liners have sought extensive coo...
2002
4 A graph approach to generate all possible regression submodels
Kontoghiorghes, Erricos John Gatu, Cristian Yanev, Petko I.,
A regression graph to enumerate and evaluate all possible subset regression models is introduced. The graph is a generalization of a regression tree. All the spanning trees of the graph are minimum sp...
2007
5 A model of tourism destination choice: a theoretical and empirical analysis
Theocharous, Antonis L. Seddighi, Hamid R.,
In recent years tourism has become one of the fastest growing sectors of the world economy and is widely recognised for its contribution to regional and national economic development. The main aim of ...
2002
6 A note on Tukey's polyefficiency
Yatracos, Yannis,
The efficiency of an estimate Sn is usually computed at some underlying distribution. Because it is rare that a real situation can be represented by a single assumed model, Tukey proposed to compute i...
1991
7 A stop-loss risk index
Yatracos, Yannis Wei, Wang,
An index related with the Dutch premium calculation principle [Insur.: Math. Econ. 11 (1992) 129] and the tail conditional expectation [Math. Finance 9 (1999) 203] is proposed to measure the right-tai...
2004
8 Algorithms for computing the qr decomposition of a set of matrices with common columns
Kontoghiorghes, Erricos John Yanev, Petko I. Foschi, Paolo,
The QR decomposition of a set of matrices which have common columns is investigated. The triangular factors of the QR decompositions are represented as nodes of a weighted directed graph. An edge betw...
2004
9 An alternative approach for the numerical solution of seemingly unrelated regression equations models
Kontoghiorghes, Erricos John Clarke, Michael R B,
An alternative approach to compute the coefficients of a Seemingly Unrelated Regression Equations (SURE) model is proposed. Orthogonal transformations are employed to avoid the difficulties in directl...
1995
10 An efficient branch-and-bound strategy for subset vector autoregressive model selection
Kontoghiorghes, Erricos John Gatu, Cristian Gilli, Manfred H.,
A computationally efficient branch-and-bound strategy for finding the subsets of the most statistically significant variables of a vector autoregressive (VAR) model from a given search subspace is pro...
2008