Results 61 to 70 of about 109,601 (167)

Penalized Likelihood Methods for Estimation of Sparse High Dimensional Directed Acyclic Graphs

open access: yes, 2009
Directed acyclic graphs (DAGs) are commonly used to represent causal relationships among random variables in graphical models. Applications of these models arise in the study of physical, as well as biological systems, where directed edges between nodes ...
A. Shojaie, G. Michailidis, Huang
core   +5 more sources

An Adaptive Large Neighborhood Search for a Green Vehicle Routing Problem with Depot Sharing

open access: yesMathematics
In urban logistics distribution, vehicle carbon emissions during the distribution process significantly contribute to environmental pollution. While developing green logistics is critical for the sustainable growth of the logistics industry, existing ...
Zixuan Wu   +4 more
doaj   +1 more source

The Self-Organization of Interaction Networks for Nature-Inspired Optimization

open access: yes, 2009
Over the last decade, significant progress has been made in understanding complex biological systems, however there have been few attempts at incorporating this knowledge into nature inspired optimization algorithms.
Pham, Q. Tuan   +2 more
core   +1 more source

An adaptive large neighborhood search for a vehicle routing problem with cross-dock under dock resource constraints [PDF]

open access: yes, 2015
International audienceIn this work, we study the impact of dock resource constraints on the cost of VRPCD ...
Gendreau, Michel   +3 more
core   +2 more sources

Seven ways to improve example-based single image super resolution

open access: yes, 2015
In this paper we present seven techniques that everybody should know to improve example-based single image super resolution (SR): 1) augmentation of data, 2) use of large dictionaries with efficient search structures, 3) cascading, 4) image self ...
Rothe, Rasmus   +2 more
core   +1 more source

Reinforced Adaptive Large Neighborhood Search

open access: yes, 2011
The Large Neighborhood Search metaheuristic for solving Constrained Optimization Problems has been proved to be effective on a wide range of problems. This Local Search heuristic has the particu- larity of using a complete search (such as Constraint Programming) to explore the large neighborhoods obtained by relaxing a fragment of the variables of the ...
Mairy, Jean-Baptiste   +3 more
openaire   +1 more source

Location Decision Making and Transportation Route Planning Considering Fuel Consumption

open access: yesJournal of Open Innovation: Technology, Market and Complexity, 2019
This study presents the Location Routing Problem (LRP) for which we have created a model for the integration of locating facilities and vehicle routing decisions to solve the problem.
Chalermchat Theeraviriya   +3 more
doaj   +1 more source

An Adaptive Large Neighborhood Search for the Larger-Scale Instances of Green Vehicle Routing Problem with Time Windows

open access: yesComplexity, 2020
Due to huge amount of greenhouse gases emission (such as CO2), freight has been adversely affecting the global environment in facilitating the global economy.
Zixuan Yu   +4 more
doaj   +1 more source

A reinforcement learning model for dynamic distribution route optimization of agricultural products under replenishment demand

open access: yesAlexandria Engineering Journal
Most existing logistics optimization models assume static demand or ignore transportation replenishment, which limits their applicability in dynamic agricultural environments.
Delong Zhu   +8 more
doaj   +1 more source

Operator Selection in Adaptive Large Neighborhood Search using Deep Reinforcement Learning

open access: yesarXiv, 2022
Large Neighborhood Search (LNS) is a popular heuristic for solving combinatorial optimization problems. LNS iteratively explores the neighborhoods in solution spaces using destroy and repair operators. Determining the best operators for LNS to solve a problem at hand is a labor-intensive process.
Reijnen, Robbert   +3 more
openaire   +1 more source

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