5,607 research outputs found
Behavior Extraction from Examples Using Federate MCMC-Based Particle Filtering
AbstractData-driven methods of simulating a crowd of virtual humans that exhibit behaviors imitating real human crowds play an important role in crowd simulation. In this paper, we propose a Bayesian framework for the extraction of real human's behaviors which exhibit interactions in their daily life using multiple fixed cameras. The described Markov chain Monte Carlo particle filter can effectively deals with interacting targets which are influenced by the proximity and behaviors of other targets. In this paper, we use a Markov random field motion prior combing with a federate filter algorithm which treats the observations discriminatorily to substantially improve the tracking of a fixed number of interacting targets. Simultaneously, we replace the traditional importance sampling step with MCMC sampling step to get over the vast computational requirements for large numbers of targets. i.e., we focus on the data fusion and the behavior recognition process. Finally, experimental results demonstrate that the proposed Bayesian framework deals efficiently and effectively with extractions of interacting behavior
A new fractal viscoelastic element: Promise and applications to Maxwell-rheological model
This paper proposes a fractal viscoelastic element via He?s fractal derivative, its properties are analyzed in details by the two-scale transform for the first time. The element is used to establish a fractal Maxwell-rheological model, which unifies the fractal creep equation and relaxation equation, and includes the classic elastic model and the classical Maxwell-rheological model as two special cases. This paper sheds a bright light on viscoelasticity, and the model can find wide applications in rock mechanics, plastic mechanics, and non-continuum mechanics
Crystal structure of 1, 7, 8, 9-tetrachloro-4-(2-fluorobenzyl)-10, 10-dimethoxy-4-azatricyclo[5.2.1.02, 6]dec-8-ene-3, 5-dione
Acknowledgements We gratefully acknowledge financial support from the National Natural Science Foundation of China (No.81072530).Peer reviewedPublisher PD
Thermal optimization of a 3-D integrated circuit
In a 3-D integrated circuit the heat source distribution has a huge effect on
the temperature distribution, so an optimal heat source distribution is
needed. This paper gives a numerical approach to its thermal optimization,
the result can be used for 3-D integrated circuit optimal design
The decay and the mixing
We study the and reactions, and pay attention to the different sources of isospin
violation and mixing of and resonances where these
resonances are dynamically generated from meson-meson interaction. We find that
the main reason of isospin violation is the isospin breaking in the meson-meson
transition matrices, and the other source is that the loops involving kaons
in the production mechanism provide a source of isospin violation because they
do not cancel by the different mass of the charged and neutral kaons. We obtain
a branching ratio for production of the order of .
Future experiments can address this problem and the production rate and shape
of the mass distribution will definitely help to better understand
the nature of scalar resonances.Comment: 12 pages, 4 figure
decays into and \omega (\phi) \,''f_1(1420)''
We perform a theoretical study of the reactions with the assumption that the
is dynamically generated from a single channel
interaction in the chiral unitary approach. Two peaks in the
invariant mass distribution are observed, one clear peak locates at the
nominal mass, the other peak locates at around
with about width. We conclude that the former peak is associated
with the and the latter peak is not a genuine resonance but a
manifestation of the kinematic effect in the higher energy region caused by the
decay mode of the .Comment: 17 pages, 5 figures
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