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Academy of Mathematics and Systems Science, CAS Colloquia & Seminars：Capsule Aggregated Attention for Vehicle Routing Problems
车辆 路径问题 胶囊聚合 关注
2023/4/27
Deep learning based methods have shown great potential for solving Vehicle Routing Problems (VRPs) in recent years. In the current learning based models, attention mechanism plays an important role an...
Chip-Firing and Rotor-Routing on Directed Graphs
Chip-Firing Rotor-Routing Directed Graphs
2015/8/14
We give a rigorous and self-contained survey of the abelian sandpile model and rotor-router model on finite directed graphs, highlighting the connections between them. We present several intriguing op...
Improving overland flow routing by incorporating ancillary road data into Digital Elevation Models
Watershed Delineation Road Geographic Information System GIS Flow Direction Digital Elevation Model DEM Hydrological Modeling
2015/8/6
Roads, ditches, and culverts influence hydrological and geomorphological processes significantly. However, most hydrological models continue to rely solely on regional digital elevation models (DEMs) ...
Applications of GODAE Ocean Current Forecasts to Search and Rescue and Ship Routing
GODAE Ocean Current Search and Rescue
2015/7/6
As GODAE ocean forecast systems progress, their contributions toward improving the safety and efficiency of operations at sea will increase. In this article, we review present uses of GODAE ocean fore...
A Distributed Algorithm with Linear Convergence for Maximum Lifetime Routing in Wireless Networks
Linear Convergence Lifetime Routing
2015/6/19
A wireless sensor network of nodes with limited energy is considered. The problem of computing a routing flow that maximizes the network lifetime is formulated as a linear program. We consider a conve...
Joint Routing, MAC, and Link layer Optimization in Sensor Networks with Energy Constraints
Joint Routing MAC Link layer
2015/6/19
We consider sensor networks where energy is a limited resource so that energy consumption must be minimized while satisfying given throughput requirements. Moreover, energy consumption must take into ...
Distributed Algorithms for Maximum Lifetime Routing in Wireless Sensor Networks
Wireless Sensor Networks Maximum Lifetime
2015/6/19
A sensor network of nodes with wireless transceiver capabilities and limited energy is considered. We propose distributed algorithms to compute an optimal routing scheme that maximizes the time at whi...
Improving overland flow routing by incorporating ancillary road data into Digital Elevation Models
Watershed Delineation Road
2015/1/4
Roads, ditches, and culverts influence hydrological and geomorphological processes significantly. However, most hydrological models continue to rely solely on regional digital elevation models (DEMs) ...
Aircraft routing with minimal climate impact: the REACT4C climate cost function modelling approach (V1.0)
minimal climate impact function modelling approach
2014/12/18
In addition to CO2, the climate impact of aviation is strongly influenced by non-CO2 emissions, such as
nitrogen oxides, influencing ozone and methane, and water
vapour, which can lead t...
A dynamic continental runoff routing model applied to the last Northern Hemisphere deglaciation
continental runoff routing model last Northern Hemisphere glaciation
2014/12/10
We describe and evaluate a dynamical continental runoff routing model for the Northern Hemisphere that calculates the runoff pathways in response to topographic modifications due to changes in ice thi...
The JGrass-NewAge system for forecasting and managing the hydrological budgets at the basin scale: models of flow generation and propagation/routing
JGrass-NewAge system hydrological budgets
2014/12/9
This paper presents a discussion of the predictive capacity of the implementation of the semidistributed
hydrological modeling system JGrassNewAge.
Enhancing Transport Efficiency by Hybrid Routing Strategy
Enhancing Transport Efficiency Hybrid Routing Strategy Adaptation and Self-Organizing Systems
2012/4/26
Traffic is essential for many dynamic processes on real networks, such as internet and urban traffic systems. The transport efficiency of the traffic system can be improved by taking full advantage of...
Routing Physarum with electrical flow/current
Physarum polycephalum Unconventional Computing Extended Analog Computer
2012/4/20
Plasmodium stage of Physarum polycephalum behaves as a distributed dynamical pattern formation mechanism who's foraging and migration is influenced by local stimuli from a wide range of attractants an...
Novel preference-oriented navigation system for optimal routing selection
Navigation Filter Multiple attributes Clustering
2010/9/25
The conventional navigation retrieval generally matches according to keywords and recommends information for users without considering their preferences. The ever-increasing descriptions of POIs have ...
Improved non-linear transfer function and neural network methods of flow routing for real-time forecasting
non-linear transfer function neural network methods flow routing real-time forecasting
2009/12/4
Data-based methods of flow forecasting are becoming increasingly popular due to their rapid development times, minimum information requirements, and ease of real-time implementation, with transfer fun...