9,789 research outputs found
Mirror nuclei constraint in mass formula
The macroscopic-microscopic mass formula is further improved by considering
mirror nuclei constraint. The rms deviation with respect to 2149 measured
nuclear masses is reduced to 0.441 MeV. The shell corrections, the deformations
of nuclei, the neutron and proton drip lines, and the shell gaps are also
investigated to test the model. The rms deviation of alpha-decay energies of 46
super-heavy nuclei is reduced to 0.263 MeV. The central position of the
super-heavy island could lie around N=176~178 and Z=116~120 according to the
shell corrections of nuclei.Comment: 15 pages, 7 figures, 3 tables; version to appear in Phys. Rev.
A Deep Spatio-Temporal Fuzzy Neural Network for Passenger Demand Prediction
In spite of its importance, passenger demand prediction is a highly
challenging problem, because the demand is simultaneously influenced by the
complex interactions among many spatial and temporal factors and other external
factors such as weather. To address this problem, we propose a Spatio-TEmporal
Fuzzy neural Network (STEF-Net) to accurately predict passenger demands
incorporating the complex interactions of all known important factors. We
design an end-to-end learning framework with different neural networks modeling
different factors. Specifically, we propose to capture spatio-temporal feature
interactions via a convolutional long short-term memory network and model
external factors via a fuzzy neural network that handles data uncertainty
significantly better than deterministic methods. To keep the temporal relations
when fusing two networks and emphasize discriminative spatio-temporal feature
interactions, we employ a novel feature fusion method with a convolution
operation and an attention layer. As far as we know, our work is the first to
fuse a deep recurrent neural network and a fuzzy neural network to model
complex spatial-temporal feature interactions with additional uncertain input
features for predictive learning. Experiments on a large-scale real-world
dataset show that our model achieves more than 10% improvement over the
state-of-the-art approaches.Comment: https://epubs.siam.org/doi/abs/10.1137/1.9781611975673.1
Patrol Detection for Replica Attacks on Wireless Sensor Networks
Replica attack is a critical concern in the security of wireless sensor networks. We employ mobile nodes as patrollers to detect replicas distributed in different zones in a network, in which a basic patrol detection protocol and two detection algorithms for stationary and mobile modes are presented. Then we perform security analysis to discuss the defense strategies against the possible attacks on the proposed detection protocol. Moreover, we show the advantages of the proposed protocol by discussing and comparing the communication cost and detection probability with some existing methods
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