Results 41 to 50 of about 76,469 (342)

Crew Scheduling and Routing Problem in Road Restoration via Branch-and-Price Algorithms

open access: yesTransportation Science
This paper addresses the single crew scheduling and routing problem in the context of road network repair and restoration, which is critical in assisting complex postdisaster decisions in humanitarian logistics settings.
Alfredo Moreno, P. Munari, D. Alem
semanticscholar   +1 more source

Selective pricing in branch-price-and-cut algorithms for vehicle routing

open access: yesEURO Journal on Transportation and Logistics, 2019
Branch-price-and-cut is a leading methodology for solving various vehicle routing problems (VRPs). For many VRPs, the pricing subproblem of a branch-price-and-cut algorithm is highly time consuming, and to alleviate this difficulty, a relaxed pricing subproblem is used.
Guy Desaulniers   +2 more
openaire   +2 more sources

Modelling stem cell differentiation related processes—A practical overview for biologists

open access: yesFEBS Letters, EarlyView.
Stem cell differentiation is complex and difficult to control experimentally. This review introduces suitable computational modelling approaches that can support stem cell research, from mechanistic ODE and abstract models to multiscale and deep learning methods.
Ricco Zeegelaar   +4 more
wiley   +1 more source

Short-Term Electricity Price Forecasting via a Reinforcement Learning-Based Dynamic Soft Ensemble Strategy

open access: yesEnergies
To address the high volatility of spot market prices and the feature extraction limitations of single models, a short-term electricity price forecasting method based on a reinforcement learning dynamic soft ensemble strategy is proposed.
Yan Wang   +3 more
doaj   +1 more source

Pickup and delivery problem with hard time windows considering stochastic and time-dependent travel times

open access: yesEURO Journal on Transportation and Logistics, 2023
Due to the uncertain nature of the traffic system, it is not trivial for delivery companies to reliably satisfy customers’ time windows. To guarantee the reliability of the pickup and delivery service under stochastic and time-dependent travel times, we ...
Zheyu Wang   +3 more
doaj   +1 more source

A machine learning-based branch and price algorithm for a sampled vehicle routing problem

open access: yesOR spectrum, 2021
Planning of operations, such as routing of vehicles, is often performed repetitively in rea-world settings, either by humans or algorithms solving mathematical problems.
N. Furian   +3 more
semanticscholar   +1 more source

Branch-and-Price for Prescriptive Contagion Analytics

open access: yesOperations Research
A new optimization methodology helps allocate vaccines to combat a pandemic. During the COVID-19 pandemic, the extraordinary speed of vaccine developments quickly gave rise to a critical operational problem: How to distribute a scarce stockpile of vaccines across communities? In “Branch-and-Price for Prescriptive Contagion Analytics,” A.
Alexandre Jacquillat   +3 more
openaire   +4 more sources

Reconstructing enzyme evolution by protein engineering

open access: yesFEBS Letters, EarlyView.
Natural enzyme evolution can be retraced by protein engineering methods such as directed evolution, rational design, and ancestral sequence reconstruction. These approaches reveal how enzymes emerged from ligand‐binding scaffolds, developed varying substrate preferences, formed oligomeric complexes, adapted to environmental changes, and evolved novel ...
Lukas Drexler   +2 more
wiley   +1 more source

Tactical fixed job scheduling with spread-time constraints [PDF]

open access: yes, 2014
We address the tactical fixed job scheduling problem with spread-time constraints. In such a problem, there are a fixed number of classes of machines and a fixed number of groups of jobs.
Zhang, Xiandong   +3 more
core   +1 more source

The Influence of Products and Prices on Customer Loyality At the Sharia People's Economic Bank Bakti Makmur Indah Main Branch Office in Sidoarjo

open access: yesInternational Journal of Islamic Thought and Humanities
Sharia People's Economic Bank Bakti Makmur Indah Main Branch Office Throughout is one of the sharia banks that has great potential in developing an economy based on Islamic values.
Abdul Majid Toyyibi, Muhammad Adi Satria
doaj   +1 more source

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