2,706 research outputs found
Recurrent Attentional Networks for Saliency Detection
Convolutional-deconvolution networks can be adopted to perform end-to-end
saliency detection. But, they do not work well with objects of multiple scales.
To overcome such a limitation, in this work, we propose a recurrent attentional
convolutional-deconvolution network (RACDNN). Using spatial transformer and
recurrent network units, RACDNN is able to iteratively attend to selected image
sub-regions to perform saliency refinement progressively. Besides tackling the
scale problem, RACDNN can also learn context-aware features from past
iterations to enhance saliency refinement in future iterations. Experiments on
several challenging saliency detection datasets validate the effectiveness of
RACDNN, and show that RACDNN outperforms state-of-the-art saliency detection
methods.Comment: CVPR 201
Evolutionary dynamics of cooperation on interdependent networks with Prisoner's Dilemma and Snowdrift Game
The world in which we are living is a huge network of networks and should be
described by interdependent networks. The interdependence between networks
significantly affects the evolutionary dynamics of cooperation on them.
Meanwhile, due to the diversity and complexity of social and biological
systems, players on different networks may not interact with each other by the
same way, which should be described by multiple models in evolutionary game
theory, such as the Prisoner's Dilemma and Snowdrift Game. We therefore study
the evolutionary dynamics of cooperation on two interdependent networks playing
different games respectively. We clearly evidence that, with the increment of
network interdependence, the evolution of cooperation is dramatically promoted
on the network playing Prisoner's Dilemma. The cooperation level of the network
playing Snowdrift Game reduces correspondingly, although it is almost
invisible. In particular, there exists an optimal intermediate region of
network interdependence maximizing the growth rate of the evolution of
cooperation on the network playing Prisoner's Dilemma. Remarkably, players
contacting with other network have advantage in the evolution of cooperation
than the others on the same network.Comment: 6 pages, 6 figure
Zonotopic fault detection observer design for Takagi–Sugeno fuzzy systems
This paper considers zonotopic fault detection observer design in the finite-frequency domain for discrete-time Takagi–Sugeno fuzzy systems with unknown but bounded disturbances and measurement noise. We present a novel fault detection observer structure, which is more general than the commonly used Luenberger form. To make the generated residual sensitive to faults and robust against disturbances, we develop a finite-frequency fault detection observer based on generalised Kalman–Yakubovich–Popov lemma and P-radius criterion. The design conditions are expressed in terms of linear matrix inequalities. The major merit of the proposed method is that residual evaluation can be easily implemented via zonotopic approach. Numerical examples are conducted to demonstrate the proposed methodPeer ReviewedPostprint (author's final draft
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