196,254 research outputs found
Parallel solution of Almost Block Diagonal systems on a Hypercube
No full textAbstractA new tearing-type approach toward the solution of Almost Block Diagonal Systems on distributed memory parallel computers is presented. Its arithmetical complexity is examined and compared with other existing approaches
Visually Enhanced Python Functions for Clinical Equality of Measurement Assessment
No full textEquivalence testing requires specific procedures usually provided by specialized statistical software. The proposed package includes customized methods to assess biomedical equivalence and focuses on translating the outcomes into visual reports. The functions are coded in an object-oriented framework, contain improved plots or novel graphs to facilitate interpretation of the results, and are accompanied by console textual outputs to support users with additional explanations. Special attention has been devoted to verifying the preliminary assumptions of the statistical tests with automatic routines. The current module covers four aspects of biomedical statistics (equivalence, Bland--Altman and ROC analyses, effect size, and confidence intervals interpretation), offering these methodologies to the biomedical community as accessible stand-alone functions. The manuscript defines software's functions and innovations with examples and theoretical explanations.@inproceedings{FedCSIS202232,
author={Mauro Nascimben and Lia Rimondini},
pages={241–249},
title={Visually Enhanced Python Functions for Clinical Equality of Measurement Assessment},
booktitle={Communication Papers of the 17th Conference on Computer Science and Intelligence Systems},
year={2022},
editor={Maria Ganzha and Leszek Maciaszek and Marcin Paprzycki and Dominik Ślęzak},
publisher={PTI},
doi={10.15439/2022F32},
url={http://dx.doi.org/10.15439/2022F32},
volume={32},
series={Annals of Computer Science and Information Systems}
Parallel performance of a direct elliptic solver
No full textParallel performance of a direct elliptic solver / H. Hope, M. Paprzycki, S. Petrova. - In: Large scale scientific computations of engineering and environmental problems / ed. by Michael Griebel ... - Braunschweig u.a. : Vieweg, 1998. – S. 310-318. – (Notes in numerical fluid mechanics ; 62
A survey of parallel direct methods for block bidiagonal linear systems on distributed memory computers
No full textAbstractFour parallel algorithms for the solution of block bidiagonal linear systems on distributed memory computers are presented. All the algorithms belong to the class of direct methods. The first is a variant of the sequential algorithm and is suitable for a small number of processors. The remaining three algorithms are based on the parallel methods for banded systems and are much better suited for parallel computations on multiple processors. The arithmetical complexity functions of the proposed algorithms are derived. The results of experiments with the four algorithms implemented in Parallel Fortran on a linear array of 32 Transputers are presented and discussed
On the usage of 16 bit indices in recursively stored sparse matrices
No full textIn our earlier work, we have investigated the feasibility of utilization of recursive partitioning in basic (BLAS oriented) sparse matrix computations, on multi-core cache-based computers. Following encouraging experimental results obtained for SpMV and SpSV operations, here we proceed to tune the storage format. To limit the memory bandwidth overhead we introduce usage of shorter (16 bit) indices in leaf sub matrices (at the end of the recursion). Experimental results obtained for the proposed approach on 8-core machines illustrate speed improvements, when performing sparse matrix-vector multiplication
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