Babak Abbasi
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View article: Energy and economic implications of photovoltaic curtailment: current status and future scenarios
Energy and economic implications of photovoltaic curtailment: current status and future scenarios Open
As photovoltaic (PV) capacity grows, electricity grids are increasingly relying on curtailment to manage variability. Curtailments limit the amount of PV energy accepted by the grid, reducing revenues for PV operators, especially in high-p…
View article: Integrated Smart City Solutions: A Multi-Axis Approach for Sustainable Development in Varanasi
Integrated Smart City Solutions: A Multi-Axis Approach for Sustainable Development in Varanasi Open
In this era of perpetual advancement and innovation, the term “smart” is frequently misused. Linking smartness to a city should reflect and solve multiple problems with a single solution. A city, district, or area can only be smart when it…
View article: <b>Effect of Client Satisfaction on Developing CRM, Trust, and Quality</b>
<b>Effect of Client Satisfaction on Developing CRM, Trust, and Quality</b> Open
This study intended to examine the impact of account management practices on client satisfaction within branding and marketing agencies in Karachi. This study uses a mono-method quantitative approach, whereas non-probability purposive samp…
View article: Association of IL2RA and multiple sclerosis risk: A case control, systematic review, and meta-analysis study
Association of IL2RA and multiple sclerosis risk: A case control, systematic review, and meta-analysis study Open
The interleukin-2 receptor alpha chain (IL2RA) gene has been implicated in multiple sclerosis (MS) susceptibility, particularly through the rs2104286 and rs12722489 SNPs. However, previous studies have yielded inconsistent results across d…
View article: Learning to guide local search optimisation for routing problems
Learning to guide local search optimisation for routing problems Open
Machine learning has shown promises in tackling routing problems yet falls short of state-of-the-art solutions achieved by stand-alone operations research algorithms. This paper introduces "Learning to Guide Local Search" (L2GLS), a novel …
View article: Ensuring blood is available when it is needed most
Ensuring blood is available when it is needed most Open
The provision of blood to patients in need is an imperative faced by all countries. Red blood cells (RBCs) are perishable with a life of 42 days. Inventory managers at hospitals need to know how many RBCs to order so that the probability o…
View article: Optimal ordering decisions for red blood cells at hospitals under blood-type substitutions
Optimal ordering decisions for red blood cells at hospitals under blood-type substitutions Open
Hospitals face numerous challenges when determining the ordering quantities of red blood cells (RBC) from a central blood bank.Due to limited shelf-life of RBCs, hospitals need to ensure that they have enough inventories to meet the needs …
View article: Farmland allocation in the conversion from conventional to organic farming
Farmland allocation in the conversion from conventional to organic farming Open
Organic farming enhances food quality and public health, and contributes to a more sustainable environment. Although certified organic farmland grew from 11 to 72.3 million hectares between 1999 and 2019, it constituted only 1.5 percent of…
View article: Supply chain network design with financial considerations: A comprehensive review
Supply chain network design with financial considerations: A comprehensive review Open
International audience
View article: Home healthcare staff dimensioning problem for temporary caregivers: A matheuristic solution approach
Home healthcare staff dimensioning problem for temporary caregivers: A matheuristic solution approach Open
Staff dimensioning, defined as determining the required numbers of caregivers with different types of skills, is a key decision for home healthcare systems. Home healthcare providers often use a combination of permanent and temporary (casu…
View article: Quantum game approach for capacity allocation decisions under strategic reasoning
Quantum game approach for capacity allocation decisions under strategic reasoning Open
From a common point of view, quantum mechanics, psychology, and decision science disciplines try to predict how unruly systems (atomic particles, human behaviors, and decision makers’ choices) might behave in the future. Effective predicti…
View article: Learning Enhanced Optimisation for Routing Problems
Learning Enhanced Optimisation for Routing Problems Open
Deep learning approaches have shown promising results in solving routing problems. However, there is still a substantial gap in solution quality between machine learning and operations research algorithms. Recently, another line of researc…
View article: How to effectively use machine learning models to predict the solutions for optimization problems: lessons from loss function
How to effectively use machine learning models to predict the solutions for optimization problems: lessons from loss function Open
Using machine learning in solving constraint optimization and combinatorial problems is becoming an active research area in both computer science and operations research communities. This paper aims to predict a good solution for constrain…
View article: Allocation Policies to Fulfil Heterogeneous Service Requirements under Resource Pooling
Allocation Policies to Fulfil Heterogeneous Service Requirements under Resource Pooling Open
Designing effective settings for performance measures (e.g., fill rate) of a service‐level agreement (SLA) is challenging. This challenge is intensified when a firm adopts the pooling inventory model to allocate inventory/capacity to multi…
View article: Antecedents of flight delays in the Australian domestic aviation market
Antecedents of flight delays in the Australian domestic aviation market Open
Flight delays are widespread and growing around the world. Using public domain data of the airlines in Australia's domestic aviation market, this study investigates the antecedents of flight delays, and how airline operations contribute to…
View article: Postdisaster Volatility of Blood Donations in an Unsteady Blood Supply Chain*
Postdisaster Volatility of Blood Donations in an Unsteady Blood Supply Chain* Open
The stochastic behavior of both transfusion (demand) and blood donations (collection) is a challenge for the blood supply chain. Although donations are not fully within the control of blood supply chain, the blood service can marginally mo…
View article: Sustainable Open Vehicle Routing with Release-Time and Time-Window: A Two-Echelon Distribution System
Sustainable Open Vehicle Routing with Release-Time and Time-Window: A Two-Echelon Distribution System Open
In an increasingly competitive economic environment, outsourcing for logistics has emerged as a cost-efficient strategy during freight transportation. The open vehicle routing problem is a type of classical vehicle routing problem, in whic…
View article: A two-stage stochastic approach for the asset protection problem during escaped wildfires with uncertain timing of a wind change
A two-stage stochastic approach for the asset protection problem during escaped wildfires with uncertain timing of a wind change Open
Wildfires are natural disasters capable of damaging economies and communities. When wildfires become uncontrollable, Incident Manager Teams (IMT's) dispatch response vehicles to key assets to undertake protective tasks and so mitigate the …