Results 351 to 360 of about 19,979,346 (388)
Some of the next articles are maybe not open access.
DiffusionDet: Diffusion Model for Object Detection
IEEE International Conference on Computer Vision, 2022We propose DiffusionDet, a new framework that formulates object detection as a denoising diffusion process from noisy boxes to object boxes. During the training stage, object boxes diffuse from ground-truth boxes to random distribution, and the model ...
Shoufa Chen +3 more
semanticscholar +1 more source
Diffusion reproduction processes
Journal of Statistical Physics, 1990Interesting physics emerges from studying a population of reproducing individuals. Each can be regarded as a random walker, but it can either duplicate or die. Novel features of the collective behavior are quite surprising: if individuals reproduce or die freely, the life expectation is proportional to the size of the population, and if it is kept ...
Zhang Y. C +2 more
openaire +3 more sources
Physical review. E, Statistical, nonlinear, and soft matter physics, 2015
The information diffusion process in single complex networks has been extensively studied, especially for modeling the spreading activities in online social networks.
Wei-Hong Li +5 more
semanticscholar +1 more source
The information diffusion process in single complex networks has been extensively studied, especially for modeling the spreading activities in online social networks.
Wei-Hong Li +5 more
semanticscholar +1 more source
Diffusion of Innovation Theory
The SAGE Encyclopedia of Research Design, 2022One of the greatest pains to human nature is the pain of a new idea. It... makes you think that after all, your favorite notions may be wrong, your firmest beliefs ill-founded...
M. S. Hornor
semanticscholar +1 more source
2001
Abstract Write down Bartlett’s equation in the case of the Wiener process D having drift m and instantaneous variance 1, and solve it subject to the boundary condition D(0) = 0.
Geoffrey R Grimmett, David R Stirzaker
openaire +1 more source
Abstract Write down Bartlett’s equation in the case of the Wiener process D having drift m and instantaneous variance 1, and solve it subject to the boundary condition D(0) = 0.
Geoffrey R Grimmett, David R Stirzaker
openaire +1 more source
2011
All geophysical motions are diffusive because of turbulence. Here, we consider a relatively crude way of representing turbulent diffusion, by means of an eddy diffusivity. Although the theory is straightforward, numerical handling of diffusion terms requires care, and the main objective of this chapter is to treat the related numerical issues, leading ...
Benoit Cushman-Roisin +1 more
openaire +2 more sources
All geophysical motions are diffusive because of turbulence. Here, we consider a relatively crude way of representing turbulent diffusion, by means of an eddy diffusivity. Although the theory is straightforward, numerical handling of diffusion terms requires care, and the main objective of this chapter is to treat the related numerical issues, leading ...
Benoit Cushman-Roisin +1 more
openaire +2 more sources
Diffusion Processes and their Transformations
1993This chapter is devoted to a brief exposition on the theory of diffusion processes in order to fix definitions and notations which will be necessary in the following chapters. Moreover, transformations of diffusion processes by means of multiplicative functionals, a renormalization of Kac′s semi-groups, and Feller′s one-dimensional diffusion processes ...
openaire +2 more sources
1980
Publisher Summary Diffusion processes are special cases of Markov processes with continuous sample functions. Depending on the classification of methods, there are two basically different approaches to the class of diffusion processes. They can be defined either in terms of the conditions on the transition probabilities or the state Xt and its ...
ISHWAR V. BASAWA, B.L.S. PRAKASA RAO
openaire +2 more sources
Publisher Summary Diffusion processes are special cases of Markov processes with continuous sample functions. Depending on the classification of methods, there are two basically different approaches to the class of diffusion processes. They can be defined either in terms of the conditions on the transition probabilities or the state Xt and its ...
ISHWAR V. BASAWA, B.L.S. PRAKASA RAO
openaire +2 more sources
Review on hydrogen safety issues: Incident statistics, hydrogen diffusion, and detonation process
, 2021Fuyuan Yang +7 more
semanticscholar +1 more source