Results 11 to 20 of about 52,467,368 (351)

Parallel-Sequential Texture Analysis [PDF]

open access: yes, 2005
Color induced texture analysis is explored, using two texture analysis techniques: the co-occurrence matrix and the color correlogram as well as color histograms. Several quantization schemes for six color spaces and the human-based 11 color quantization scheme have been applied. The VisTex texture database was used as test bed.
van den Broek, Egon   +1 more
openaire   +4 more sources

Analysis of recursively parallel programs [PDF]

open access: yesACM SIGPLAN Notices, 2012
We propose a general formal model of isolated hierarchical parallel computations, and identify several fragments to match the concurrency constructs present in real-world programming languages such as Cilk and X10. By associating fundamental formal models (vector addition systems with recursive transitions) to each fragment, we provide a common ...
Ahmed Bouajjani, Michael Emmi
openaire   +2 more sources

Determining Dimensionality with Dichotomous Variables: A Monte Carlo Simulation Study and Applications to Missing Data in Longitudinal Research

open access: yesMathematics, 2023
Dichotomous data correspond with various types of commonly encountered data, e.g., positive/negative, case/control, missing/observed, in many fields, including medicine, health, and social sciences.
Ting Dai, Adam Davey
doaj   +1 more source

How Does the Valence of Wording Affect Features of a Scale? The Method Effects in the Undergraduate Learning Burnout Scale

open access: yesFrontiers in Psychology, 2020
A combination of both positively and negatively worded items is often employed in a survey to reduce participants’ acquiescence bias, but such a combination may hurt the validity of the survey.
Biao Zeng, Hongbo Wen, Junjie Zhang
doaj   +1 more source

QUANTIFYING THE QUALITY OF INDOOR MAPS [PDF]

open access: yesThe International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences, 2019
Indoor maps are required for multiple applications, such as, navigation, building maintenance and robotics. One of common methods for map generation is laser scanning. In such maps, not only geometry of the map is of interest, but also its quality.
M. Assali   +5 more
doaj   +1 more source

Deterministic parallel analysis: an improved method for selecting factors and principal components [PDF]

open access: yesJournal of The Royal Statistical Society Series B-statistical Methodology, 2017
Factor analysis and principal component analysis are used in many application areas. The first step, choosing the number of components, remains a serious challenge. Our work proposes improved methods for this important problem.
Edgar Dobriban, A. Owen
semanticscholar   +1 more source

Task-parallel Analysis of Molecular Dynamics Trajectories [PDF]

open access: yesInternational Conference on Parallel Processing, 2018
Different parallel frameworks for implementing data analysis applications have been proposed by the HPC and Big Data communities. In this paper, we investigate three task-parallel frameworks: Spark, Dask and RADICAL-Pilot with respect to their ability to
Ioannis Paraskevakos   +7 more
semanticscholar   +1 more source

Analysis of Parallel Systems [PDF]

open access: yesIEEE Transactions on Computers, 1971
A formal analysis procedure for hardware and software computer systems is described. A system is described by a flow table model. The concept of an output hazard is introduced to account for effects of unbounded line delays. Necessary and sufficient conditions for the absence of output hazards are given. A system that contains no output hazards is said
openaire   +1 more source

A dual-population Constrained Many-Objective Evolutionary Algorithm based on reference point and angle easing strategy [PDF]

open access: yesPeerJ Computer Science
Constrained many-objective optimization problems (CMaOPs) have gradually emerged in various areas and are significant for this field. These problems often involve intricate Pareto frontiers (PFs) that are both refined and uneven, thereby making their ...
Chen Ji   +3 more
doaj   +2 more sources

Space exploration using parallel orbits:A study in parallel symbolic computing [PDF]

open access: yes, 2013
Orbit enumerations represent an important class of mathematical algorithms which is widely used in computational discrete mathematics. In this paper, we present a new shared-memory implementation of a generic Orbit skeleton in the GAP computer algebra ...
Brown, Christopher Mark   +11 more
core   +1 more source

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