tailieunhanh - Báo cáo sinh học: " Use of sparse matrix in animal breeding"

Tuyển tập các báo cáo nghiên cứu về sinh học được đăng trên tạp chí sinh học Journal of Biology đề tài: Use of sparse matrix in animal breeding | 457 Genet. Sei Evol. 1989 21 457-466 @ Elsevier INRA Original article Use of sparse matrix absorption in animal breeding B. Tier anti . Smith University of New England Animal Genetics and Breeding Unit Armidale NSW 2351 Australia received 1 March 1988 accepted 1 June 1989 Summary - Although the capacity of modern computers is increasing dramatically so too are the complexity of models that animal breeders employ with the result that we still find computers limiting. This paper demonstrates the employment of linked lists for sparse matrix manipulations and their use in a number of relevant applications. animal breeding prediction of genetic merits numerical methods sparse matrix Resume utilisation en génétique animale de 1 absorption dans des matrices creuses. Malgre I accroissementde capacité des ordinateurs la complexitéegalement croissante des modèles employ ệs en gệnétique animate nécessite le raffinement des methodes numeriques Get article explique I utilisation de ỉistes lịệes pour manipuler de très grandes matrices creuses et illustre leur usage dans differents types d application dans le cadre de I evaluation des reproducteurs absorption d effets fixes inversion de matrices estimations de composantes de la variance par le maximum de vrais emb lance. génétique animate - evaluation des reproducteurs - analyse numérique - matrices creuses INTRODUCTION As the capacity of modern computers increases so does the quantity of data and the complexity of models that animal geneticists wish to use in their analyses. In the early years of computing when main memory was a major limitation a variety of techniques were developed to utilise efficiently that memory which was available Bunch and Rose 1976 . This paper illustrates the use of one of these techniques -linked lists - to store sparse matrices and eliminate absorb equations. Examples are given of how this technique can be useful. TYPICAL MODELS Linear models that are commonly used by animal geneticists have .