Results 51 to 60 of about 8,476 (163)

Generic adaptive heuristics for large neighborhood search

open access: yes, 2010
The Large Neighborhood Search (LNS) approach for solving Constrained Optimization Problems has been proved to be eective on a wide range of problems. LNS is a local search metaheuristic that uses a complete search method (such as CP) to explore a large neighborhood.
Mairy, Jean-Baptiste   +3 more
openaire   +1 more source

Research on Green Distribution Problems of Mixed Fleets Considering Multiple Charging Methods

open access: yesEnergies
Against the backdrop of global emissions reduction and transportation electrification, electric vehicles are gradually replacing traditional fuel vehicles for delivery.
Lvjiang Yin, Ruixue Zhu, Dandan Jian
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

An intelligent stochastic optimization approach for air cargo order allocation under carbon emission constraints.

open access: yesPLoS ONE
In air cargo transportation, effective order allocation is crucial for improving the efficiency of business operations and reducing environmental impact.
Zhenzhong Zhang   +3 more
doaj   +1 more source

Blockchain-Enabled Infection Sample Collection System Using Two-Echelon Drone-Assisted Mechanism

open access: yesDrones
The collection and transportation of samples are crucial steps in stopping the initial spread of infectious diseases. This process demands high levels of safety and timeliness.
Shengqi Kang, Xiuwen Fu
doaj   +1 more source

Item Storage Assignment Problem in Robotic Mobile Fulfillment Systems With Nonempty Pods

open access: yesIEEE Access
This study examines the item storage assignment problem in robotic mobile fulfillment systems (RMFSs), that determines the assignment of items to pods.
Rubo Li, Xudong Deng, Yunfeng Ma
doaj   +1 more source

Heuristic Algorithms for Heterogeneous and Multi-Trip Electric Vehicle Routing Problem with Pickup and Delivery

open access: yesWorld Electric Vehicle Journal
In light of the widespread use of electric vehicles for urban distribution, this paper delves into the electric vehicle routing problem (EVRP): specifically addressing multiple trips per vehicle, diverse vehicle types, and simultaneous pickup and ...
Li Wang   +4 more
doaj   +1 more source

Adaptive Large Neighborhood Search for a Flexible Truck–Drone Routing Problem with Multi-Visit and Cost Trade-Offs

open access: yesWorld Electric Vehicle Journal
Extending the truck–drone mothership system, this paper addresses a flexible multi-visit truck and drone joint routing problem (FMTDJRP). A mixed integer linear program is proposed to minimize total travel cost. An adaptive large neighborhood search with
Jiang Bian, Rui Zhou, Qingbin Meng
doaj   +1 more source

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