Article
Management
Xu Sun, Weiliang Liu
Summary: This paper aims to help call centers improve service levels while keeping operating expenses low by utilizing an on-call pool of temporary agents. A two-stage decision model is developed, where the optimal mix of permanent and on-call staff is sought in the first stage, and a joint on-demand staffing and call scheduling policy is sought in the second stage to minimize costs. Numerical studies show that the proposed solution approach can achieve significant cost savings.
OPERATIONS RESEARCH
(2023)
Article
Ecology
Valentina Niccolucci, Luca Coscieme, Nadia Marchettini
Summary: The study calculates Ecosystem Service Yield Factors (ES-YFs) using ecosystem service values, which can be used for environmental economic accounting and as part of wellbeing indicators. This helps in making more sustainable natural resource management choices and allows comparison with market economic values.
ECOSYSTEM SERVICES
(2021)
Article
Operations Research & Management Science
Horst Zisgen
Summary: This paper presents a new approximation approach for calculating the mean queue length of a multi-server queue with fixed batch size and improves upon existing methods in certain scenarios.
OPERATIONS RESEARCH LETTERS
(2022)
Article
Engineering, Electrical & Electronic
Ahmadreza Montazerolghaem, Mohammad Hossein Yaghmaee
Summary: This paper proposes an SDN-enabled framework for DR flow management to address the communication challenges in Demand Response. The framework utilizes two-tier cloud computing and NFV technology to seamlessly manage energy and data traffic. Experimental results show that it achieves low delay, high throughput, and effectively balances energy and data on the entire DR network.
IEEE TRANSACTIONS ON SMART GRID
(2022)
Article
Business
Daniel Asante, Chunyong Tang, Michael Kwamega, Eric Adom Asante
Summary: This study integrates social exchange and psychological contract theories to examine the impact of service-oriented high-performance work systems (HPWS) on service encounter quality in high-contact service organizations. The results reveal that psychological contract fulfillment, innovative work behavior, and prosocial service behavior mediate the relationship between service-oriented HPWS and service encounter quality.
JOURNAL OF RETAILING AND CONSUMER SERVICES
(2022)
Article
Operations Research & Management Science
Burak Buke, Wenyi Qin
Summary: This paper considers multiple-server queueing systems with heterogeneous exponential servers and develops a framework for analyzing the heavy-traffic diffusion limits using measure-valued stochastic processes. The measure-valued fairness process is introduced to represent the proportion of cumulative idleness experienced by servers with specific service rates, and a new convergence concept is proposed based on shifted versions of these processes. The paper also introduces useful martingales to identify limiting fairness processes under different routing policies. The framework is demonstrated by proving diffusion limits for parallel server systems with within-pool heterogeneity.
MATHEMATICS OF OPERATIONS RESEARCH
(2022)
Article
Multidisciplinary Sciences
J. Bharathi, S. Nandhini
Summary: This paper considers a single-server queue model with Modified Bernoulli Vacation. The server offers Compulsory Service and Non-Compulsory Re-service. The Probability Generating Function for the system is derived using the Supplementary Variable Method, and numerical examples are discussed to demonstrate the impact of system parameters.
JOURNAL OF KING SAUD UNIVERSITY SCIENCE
(2024)
Article
Computer Science, Information Systems
Smitha Kurian, Loganathan Ramasamy
Summary: Service discovery is crucial in networks, especially in resource-constrained Mobile AdHoc networks. Designing protocols specific to MANET can reduce storage overhead, decrease Service Discovery Latency, and improve Service Discovery Ratio.
Article
Hospitality, Leisure, Sport & Tourism
Soona Park, Xinran Lehto, Mark Lehto
Summary: This research established an SST House of Quality structure for restaurants using the QFD methodology, allowing restaurants to assess the relationship between SST attributes and technical design specifications in a measurable way to deliver better service and customer experiences. It provides an example of how the QFD method can be a useful tool in SST service design in restaurants.
INTERNATIONAL JOURNAL OF HOSPITALITY MANAGEMENT
(2021)
Article
Operations Research & Management Science
Ward Whitt
Summary: Pender, Rand, and Wesson have recently established a delay differential equation limit for a parallel service system with routing based on delayed information. The interpretation provided in their study suggests that their limit can be seen as an example of the law of large numbers in the context of many-server heavy-traffic scaling. Scaling in the probabilistic routing function is required, and related many-server heavy-traffic delay-differential-equation limits for more general models have also been obtained.
OPERATIONS RESEARCH LETTERS
(2021)
Article
Chemistry, Analytical
Antonio Angrisano, Silvia Ascione, Giovanni Cappello, Ciro Gioia, Salvatore Gaglione
Summary: Employing precise positioning techniques can result in low-cost receivers for various applications. However, the complexity of techniques, such as Precise Point Positioning (PPP), may be a disadvantage for users who require simple solutions. On the other hand, the entry Galileo High-Accuracy Service (HAS) could have a positive impact on Single-Point Positioning (SPP) by offering improvements in accuracy.
Article
Environmental Sciences
Ali Kizgin, Danina Schmidt, Adriano Joss, Juliane Hollender, Eberhard Morgenroth, Cornelia Kienle, Miriam Langer
Summary: Wastewater treatment plants are a major source of micropollutants to surface waters. Continuous assessment of wastewater composition is currently not feasible due to the labor and cost-intensive nature of the process. This study demonstrates the potential of automated real-time biological early warning systems for wastewater surveillance.
JOURNAL OF ENVIRONMENTAL MANAGEMENT
(2023)
Article
Green & Sustainable Science & Technology
Pingping Sun, Lingang Gu
Summary: The study proposes a method of decomposing the quality of QoS indicators based on Web service composition technology, which improves the calculation speed of QoS for Internet of Things service quality. Research also shows that while big data technology can effectively handle massive amounts of data, there are still limitations in accuracy and real-time processing. Therefore, a real-time visualized integrated energy big data platform based on heterogeneous computers is introduced to achieve visual energy management and control.
SUSTAINABLE ENERGY TECHNOLOGIES AND ASSESSMENTS
(2021)
Review
Operations Research & Management Science
Madhu Jain, Sandeep Kaur, Parminder Singh
Summary: This article discusses the performance modeling and analysis of a single server, general service queueing system with service interruption, utilizing the supplementary variable technique. It elaborates on the factors causing service interruption and the methodology for establishing queue size distribution. Additionally, it provides an overview of research in the past decade on queues with service interruption and related key concepts, along with highlighting specific applications.
OPERATIONAL RESEARCH
(2021)
Article
Computer Science, Hardware & Architecture
Maryam Nooraei Abadeh, Shohreh Ajoudanian
Summary: The paper introduces a constraint-based programming approach for server reconfiguration problem in edge computing to automate efficient access to qualified edges under QoS constraints. By discussing abstract meta-modeling, validation, and empirical analysis in three phases, the proposed REaaS paradigm offers a new solution for edge design.
JOURNAL OF SUPERCOMPUTING
(2021)