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Journal articles on the topic 'FCFM policy'

Author: Grafiati

Published: 8 June 2024

Last updated: 31 July 2025

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1

Grosof, Isaac, Kunhe Yang, Ziv Scully, and Mor Harchol-Balter. "Nudge: Stochastically Improving upon FCFS." Proceedings of the ACM on Measurement and Analysis of Computing Systems 5, no. 2 (2021): 1–29. http://dx.doi.org/10.1145/3460088.

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The First-Come First-Served (FCFS) scheduling policy is the most popular scheduling algorithm used in practice. Furthermore, its usage is theoretically validated: for light-tailed job size distributions, FCFS has weakly optimal asymptotic tail of response time. But what if we don't just care about the asymptotic tail? What if we also care about the 99th percentile of response time, or the fraction of jobs that complete in under one second? Is FCFS still best? Outside of the asymptotic regime, only loose bounds on the tail of FCFS are known, and optimality is completely open. In this paper, we

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Grosof, Isaac, Kunhe Yang, Ziv Scully, and Mor Harchol-Balter. "Nudge: Stochastically Improving upon FCFS." ACM SIGMETRICS Performance Evaluation Review 49, no. 1 (2022): 11–12. http://dx.doi.org/10.1145/3543516.3460102.

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The First-Come First-Served (FCFS) scheduling policy is the most popular scheduling algorithm used in practice. Furthermore, its usage is theoretically validated: for light-tailed job size distributions, FCFS has weakly optimal asymptotic tail of response time. But what if we don't just care about the asymptotic tail? What if we also care about the 99th percentile of response time, or the fraction of jobs that complete in under one second? Is FCFS still best? Outside of the asymptotic regime, only loose bounds on the tail of FCFS are known, and optimality is completely open. In this paper, we

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Elalouf, Amir, Ariel Rosenfeld, and Ofir Rockach. "The Extended David-Yechiali Rule for Kidney Allocation." Mathematics 11, no. 2 (2023): 331. http://dx.doi.org/10.3390/math11020331.

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The First Come First Served (FCFS) queuing policy is routinely assumed to be the benchmark policy for “fairness” in waiting-time performance. In this article, we propose a slight modification of the FCFS policy based on a natural extension of the well-established David and Yechiali (DY) rule and analyze it in the context of managing a waiting list for kidney transplants. In the proposed policy, the queuing agents are sequentially offered a stochastically arriving organ on a “first come, first served” basis while applying the individually optimal DY stopping rule. Through a realistic simulation

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Wu, Yuanyuan, and Feng Zhu. "Junction Management for Connected and Automated Vehicles: Intersection or Roundabout?" Sustainability 13, no. 16 (2021): 9482. http://dx.doi.org/10.3390/su13169482.

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The concept of signal-free management at road junctions is tailored for Connected and Automated Vehicles (CAVs), in which the conventional signal control is replaced by various right-of-way assignment policies. First-Come-First-Served (FCFS) is the most commonly used policy. In most proposed strategies, although the traffic signals are replaced, the organization of vehicle trajectory remains the same as that of traffic lights. As a naturally signal-free strategy, roundabout has not received enough attention. A key motivation of this study is to theoretically compare the performance of signaliz

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Ogunwolu, L., A. Sosimi, and S. Obialo. "MODELING, OPTIMISATION AND ANALYSIS OF RE-ENTRANT FLOWSHOP JOB SCHEDULING WITH FUZZY PROCESSING TIMES." Nigerian Journal of Technology 36, no. 3 (2017): 806–13. http://dx.doi.org/10.4314/njt.v36i3.21.

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This paper presents a makespan minimization of -jobs -machines re-entrant flow shop scheduling problem (RFSP) under fuzzy uncertainties using Genetic Algorithm. The RFSP objective is formulated as a mathematical programme constrained by number of jobs and resources availability with traditional scheduling policies of First Come First Serve (FCFS) and the First Buffer First Serve (FBFS). Jobs processing times were specified by fuzzy numbers and modelled using triangular membership function representations. The modified centroid defuzzification technique was used at different alpha-cuts to obtai

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Yu, George, and Ziv Scully. "Strongly Tail-Optimal Scheduling in the Light-Tailed M/G/1." Proceedings of the ACM on Measurement and Analysis of Computing Systems 8, no. 2 (2024): 1–33. http://dx.doi.org/10.1145/3656011.

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We study the problem of scheduling jobs in a queueing system, specifically an M/G/1 with light-tailed job sizes, to asymptotically optimize the response time tail. This means scheduling to make \mathbfP [T > t], the chance a job's response time exceeds t, decay as quickly as possible in the t \to \infty limit. For some time, the best known policy was First-Come First-Served (FCFS), which has an asymptotically exponential tail: \mathbfP [T > t] \sim C e^-γ t . FCFS achieves the optimal *decay rate* γ, but its *tail constant* C is suboptimal. Only recently have policies that improve upon F

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Harlev, Amit, George Yu, and Ziv Scully. "A Gittins Policy for Optimizing Tail Latency." ACM SIGMETRICS Performance Evaluation Review 53, no. 1 (2025): 172–74. https://doi.org/10.1145/3744970.3727267.

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We consider the problem of scheduling to minimize asymptotic tail latency in an M/G/1 queue with unknown job sizes. When the job size distribution is heavy-tailed, numerous policies that do not require job size information (e.g. Processor Sharing, Least Attained Service) are known to be strongly tail optimal, meaning that their response time tail has the fastest possible asymptotic decay. In contrast, for light-tailed size distributions, only in the last few years have policies been developed that outperform simple First-Come First-Served (FCFS). The most recent of these is γ-Boost, which achi

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Harlev, Amit, George Yu, and Ziv Scully. "A Gittins Policy for Optimizing Tail Latency." Proceedings of the ACM on Measurement and Analysis of Computing Systems 9, no. 2 (2025): 1–40. https://doi.org/10.1145/3727109.

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We consider the problem of scheduling to minimize asymptotic tail latency in an M/G/1 queue with unknown job sizes. When the job size distribution is heavy-tailed, numerous policies that do not require job size information (e.g. Processor Sharing, Least Attained Service) are known to be strongly tail optimal, meaning that their response time tail has the fastest possible asymptotic decay. In contrast, for light-tailed size distributions, only in the last few years have policies been developed that outperform simple First-Come First-Served (FCFS). The most recent of these is γ-Boost, which achi

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9

Ni, Ruowei. "The Application and Research of Flight Scheduling Strategies." Highlights in Science, Engineering and Technology 120 (December 26, 2024): 21–25. https://doi.org/10.54097/y6w44r93.

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The rapid development of the aviation industry has increased the complexity and importance of flight scheduling. This paper studies scheduling policies from both temporal and spatial perspectives. Three standard scheduling policies, First Come First Serve policy (FCFS), Small Job First policy (SJF), and Shortest Remaining Processing Time policy (SRPT), are introduced in a modularized form. In this paper, we explore the roles of the three policies in dealing with different scenarios in the airport scheduling process: FCFS prioritizes task arrival time for normal scheduling, SJF prioritizes task

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10

Jeong, Ki Yong, and Hyung Jun Park. "A Study on Policy Design to Improve the Acceptance of Game Regulation Policy: Focusing on Fuzzy Cognitive Map(FCM) Policy Scenario Analysis." Korean Policy Studies Review 31, no. 2 (2022): 33–64. http://dx.doi.org/10.33900/kaps.2022.31.2.2.

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Yu, George, and Ziv Scully. "Strongly Tail-Optimal Scheduling in the Light-Tailed M/G/1." ACM SIGMETRICS Performance Evaluation Review 52, no. 1 (2024): 5–6. http://dx.doi.org/10.1145/3673660.3655084.

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We study the problem of scheduling jobs in a queueing system, specifically an M/G/1 with light-tailed job sizes, to asymptotically optimize the response time tail. This means scheduling to make \mathbfP [T > t], the chance a job's response time exceeds t, decay as quickly as possible in the t → ∞ limit. For some time, the best known policy was First-Come First-Served (FCFS), which has an asymptotically exponential tail: P [T > t] ∼ C e -γ t . FCFS achieves the optimal decay rate ~γ, but its tail constant C is suboptimal. We derive a closed-form expression for the optimal tail constant, a

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Altman, Eitan, and Hanoch Levy. "Queueing in space." Advances in Applied Probability 26, no. 4 (1994): 1095–116. http://dx.doi.org/10.2307/1427906.

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We consider a problem in which a single server must serve a stream of customers whose arrivals are distributed over a finite-size convex space. Under the assumption that the server has full information on the customer location, obvious service policies are the FCFS and the greedy (serve-the-closest-customer) approaches. These algorithms are, however, either inefficient (FCFS) or ‘unfair' (greedy).We propose and study two alternative algorithms, the gated-greedy policy and the gated-scan policy, which are more ‘fair' than the pure greedy method. We show that the stability conditions of the gate

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Altman, Eitan, and Hanoch Levy. "Queueing in space." Advances in Applied Probability 26, no. 04 (1994): 1095–116. http://dx.doi.org/10.1017/s000186780002677x.

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We consider a problem in which a single server must serve a stream of customers whose arrivals are distributed over a finite-size convex space. Under the assumption that the server has full information on the customer location, obvious service policies are the FCFS and the greedy (serve-the-closest-customer) approaches. These algorithms are, however, either inefficient (FCFS) or ‘unfair' (greedy). We propose and study two alternative algorithms, the gated-greedy policy and the gated-scan policy, which are more ‘fair' than the pure greedy method. We show that the stability conditions of the gat

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14

Liu, Hongyi, and Tianyu He. "Sustainable Management of Land Resources: The Case of China’s Forestry Carbon Sink Mechanism." Land 12, no. 6 (2023): 1188. http://dx.doi.org/10.3390/land12061188.

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Compared to more developed countries, the use of land resources is less efficient in China. China’s vast forest land area gives it a rich and underutilized carbon sink. This is an important way for China to achieve the goals of “carbon peaking” and “carbon neutrality”, which is of great significance to China’s sustainable development. In the past 20 years, China has designed a series of policies to serve the development of forestry carbon sinks, namely the forestry carbon sink mechanism (FCSM). However, the questions of which policy is the most important, and what is the socio-economic value i

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Jezkova, Veronika, Zuzana Rowland, Veronika Machova, and Jan Hejda. "The Intrinsic Value of an Enterprise Determined by Means of the FCFE Tool." Sustainability 12, no. 21 (2020): 8868. http://dx.doi.org/10.3390/su12218868.

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This paper deals with the determination of the intrinsic value of the company Seznam.cz, a.s. using discounted cash flow. Specifically, it is concerned with determining the value of the business from the perspective of the company’s shareholders. The Free Cash Flow to Equity (FCFE) method is chosen for analysis and determination of the value. According to this method, the specific FCFE values are discovered. However, the enterprise value must also be analyzed on the basis of other key indicators, such as financial leverage, the Capital Asset Pricing Model (CAPM) method, or the net present and

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Xie, Runhan, Isaac Grosof, and Ziv Scully. "Heavy-Traffic Optimal Size- and State-Aware Dispatching." ACM SIGMETRICS Performance Evaluation Review 52, no. 1 (2024): 7–8. http://dx.doi.org/10.1145/3673660.3655059.

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We study the problem of dispatching jobs to multiple FCFS (First-Come, First-Served) queues. We consider the case where the dispatcher is size-aware, meaning it learns the size (i.e. service time) of each job as it arrives; and state-aware, meaning it always knows the amount of work (i.e. total remaining service time) at each queue. While size- and state-aware dispatching to FCFS queues has been extensively studied, little is known about optimal dispatching for the objective of minimizing mean delay. In this work, we propose the first size- and state-aware dispatching policy, called CARD (Cont

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Chauhan, Deepa. "Admissibility Policy." DIU Journal of Science & Technology 9, no. 1 (2024): 11–16. https://doi.org/10.5281/zenodo.13762497.

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In this paper, we propose to study such a model which deals with the aspects concerning the control of the arrival process. The paper deals with M/G/I queueing system with two types of rE[X]{01 E[B; ] +02E[B2]}{1 + AαE[V]} EL]= 1 – rλ£[ X ]{0; E[B1 |+02E[B2]} heterogeneous services and Bernoulli vacation schedule under a controlled admissibility policy of arriving batches. There is a single server who provides two types of parallel general heterogeneous services (one of which has to be chosen by each customer) to the customer on FCFS basis. Before starting the service,

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18

Naz, Insha, Sameena Naaz, Parul Agarwal, Bhavya Alankar, Farheen Siddiqui, and Javed Ali. "A Genetic Algorithm-Based Virtual Machine Allocation Policy for Load Balancing Using Actual Asymmetric Workload Traces." Symmetry 15, no. 5 (2023): 1025. http://dx.doi.org/10.3390/sym15051025.

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Load balancing is a very important concept in cloud computing. In this work, studies are conducted on workload traces at Los Alamos National Lab (LANL). The jobs in this trace are asymmetric in nature as most of them have small time limit. Two hybrid algorithms, a Genetic Algorithm combined with First Come First Serve (GA_FCFS) and Genetic Algorithm combined with Round Robin (GA_RR), are proposed here. The results obtained are compared with the existing First Come First Serve (FCFS), Round Robin (RR) and Genetic Algorithm (GA). Makespan and Resource Utilization are used for the comparison of r

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Çağlayan, Önder, and Murat Aymelek. "An Integrated Multi-Criteria Decision Support Model for Sustainable Ship Queuing Policy Application via Vessel Traffic Service (VTS)." Sustainability 16, no. 11 (2024): 4615. http://dx.doi.org/10.3390/su16114615.

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The International Maritime Organization (IMO) persistently improves policies to mitigate greenhouse gas (GHG) emissions from maritime operations, emphasizing the significance of operational measures. Simultaneously, heightened recognition of collaborative efforts within the maritime sector has increased the applicability of arrival policies like Just-In-Time Arrival (JITA), aimed at curtailing unnecessary anchorage time and emissions affecting adjacent communities in port vicinities. Nevertheless, ongoing initiatives advocate adopting JITA over the prevailing First Come, First Served (FCFS) po

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Al Duhayyim, Mesfer, Heba G. Mohamed, Jaber S. Alzahrani, et al. "Modeling of Fuzzy Cognitive Maps with a Metaheuristics-Based Rainfall Prediction System." Sustainability 15, no. 1 (2022): 25. http://dx.doi.org/10.3390/su15010025.

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Rainfall prediction remains a hot research topic in smart city environments. Precise rainfall prediction in smart cities becomes essential for planning security measures before construction and transportation activities, flight operations, water reservoir systems, and agricultural tasks. Precise rainfall forecasting now becomes more complex than before because of extreme climatic changes. Machine learning (ML) approaches can forecast rainfall by deriving hidden patterns from historic meteorological datasets. Selecting a suitable classification method for forecasting has become a tough job. Thi

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O'connell, Neil. "Large deviations for departures from a shared buffer." Journal of Applied Probability 34, no. 3 (1997): 753–66. http://dx.doi.org/10.2307/3215100.

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In this paper we describe how the joint large deviation properties of traffic streams are altered when the traffic passes through a shared buffer according to a FCFS service policy with stochastic service capacity. We also consider the stationary case, proving large deviation principles for the state of the system in equilibrium and for departures from an equilibrium system.

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O'connell, Neil. "Large deviations for departures from a shared buffer." Journal of Applied Probability 34, no. 03 (1997): 753–66. http://dx.doi.org/10.1017/s0021900200101408.

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In this paper we describe how the joint large deviation properties of traffic streams are altered when the traffic passes through a shared buffer according to a FCFS service policy with stochastic service capacity. We also consider the stationary case, proving large deviation principles for the state of the system in equilibrium and for departures from an equilibrium system.

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23

Khalili, Myriam, Olusegun Famure, Michelle Minkovich, Kathryn J. Tinckam, and Sang Joseph Kim. "Selective Elimination and Rationalization of Cell-based Assays in Deceased Donor Kidney Transplant Crossmatching." Transplantation Direct 10, no. 4 (2024): e1603. http://dx.doi.org/10.1097/txd.0000000000001603.

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Background. While there is increasing reliance on a negative virtual crossmatch to proceed with deceased donor kidney transplantation, a flow cytometry crossmatch (FCXM) is still usually performed after the transplant has already occurred. Our center has eliminated pretransplant physical crossmatches for most patients, and since 2018, we have eliminated the systematic performance of posttransplant FCXMs. Methods. We studied all deceased donor kidney transplants in our program between June 1, 2018, and March 31, 2021, to evaluate the impact of eliminating retrospective FCXMs on resource utiliza

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Ou, Dongxiu, Huang Yan, Hongming Li, and Wei Li. "Optimization of Conflicting Tram Signal Priority Requests Based on Spatiotemporal Interlocking Logic Using Microscopic Simulation." International Journal of Software Engineering and Knowledge Engineering 28, no. 04 (2018): 507–22. http://dx.doi.org/10.1142/s0218194018400089.

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This paper proposes a method to optimize the conflicting tram signal priority requests at a multi-lines (M-lines) interchange intersection. The method is formulated on the basis of the spatiotemporal logic of complex switch area operations and the characteristics of multiple conflicting tram priority requests. Our study first depicts the interlocking logic of tram system operation according to the phases design and the spatial rules. Furthermore, it classifies the tram priority requests by the intersection entrances, priority phases and tram routes. Finally, it optimizes the serving sequences

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Anton, E., R. Righter, and I. M. Verloop. "Scheduling under redundancy." ACM SIGMETRICS Performance Evaluation Review 50, no. 2 (2022): 30–32. http://dx.doi.org/10.1145/3561074.3561085.

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In the present extended abstract we investigate the impact that the scheduling policy has on the performance of redundancy systems when the usual exponentially distributed i.i.d. copies assumption is relaxed. In particular, we investigate the performance, in terms of the total number of jobs in the system, not only for redundancy-oblivious policies, such as FCFS (First-Come-First-Serve) and ROS (Random- Order-of-Service), but also for redundancy-aware policies of the form Π1-?2, where Π1 discriminates among job classes and Π2 discriminates among jobs of the same class. Examples of first-level

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Zhang, Qin. "Dynamic Routing Policies for Multi-Skill Call Centers Using Deep Q Network." Mathematics 11, no. 22 (2023): 4662. http://dx.doi.org/10.3390/math11224662.

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When the call center queuing system becomes complex, it turns out that the static routing policy is not optimal. This paper considers the problem of the dynamic routing policy for call centers with multiple skill types and agent groups. A state-dependent routing policy based on the Deep Q Network (DQN) is proposed, and a reinforcement learning algorithm is applied to optimize the routing. A simulation algorithm is designed to help customers and agents interact with the external environment to learn the optimal strategy. The performance evaluation considered in this paper is the service level/a

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Mousavi Loghman, Seyyede Ashraf, Alireza Moini, and Mir Saman Pishvaee. "A hybrid FCM-VIKOR approach to family economic policy-making." Kybernetes 49, no. 5 (2019): 1485–505. http://dx.doi.org/10.1108/k-02-2019-0078.

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Purpose This paper aims to present a systematic methodology to study different economic labor policies and their impacts on women and families. As women entered into the labor market, the traditional division of family labor vanished. Now, families need to make the best decision to both improve the family economy and enhance family's main functions. In addition, the government is responsible toward the consequences of the family policies. Design/methodology/approach The content analysis, fuzzy cognitive map, scenario-planning and vlse kriterijumsk optimizacija kompromisno resenje (VIKOR) have

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Koole, G. M., B. F. Nielsen, and T. B. Nielsen. "OPTIMIZATION OF OVERFLOW POLICIES IN CALL CENTERS." Probability in the Engineering and Informational Sciences 29, no. 3 (2015): 461–71. http://dx.doi.org/10.1017/s0269964815000091.

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We examine how overflow policies in a multi-skill call center should be designed to accommodate performance measures that depend on waiting time percentiles such as service level. This is done using a discrete Markovian approximation of the waiting time of the first customers waiting in line. A Markov decision chain is used to determine the optimal policy. This policy outperforms considerably the ones used most often in practice, which use a fixed threshold. The present method can be used also for other call-center models and other situations where performance is based on actual waiting times

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Tapsoba, Aicha. "Economic evaluation of the direct use values of goods and services provided by the Bagré wetland in Burkina Faso." European Scientific Journal, ESJ 20, no. 28 (2024): 109. http://dx.doi.org/10.19044/esj.2024.v20n28p109.

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Aim missing this study examines the sustainability of the Bagré wetland in Burkina Faso by assessing the direct use values of its ecosystem goods and services. It is accompanied by practical policy recommendations and aims to contribute to strengthening the country's economic growth. The conceptual framework of Munasinghe's (1992) theory and the economic evaluation guide developed by Somda and Awaïs (2013) made it possible to identify and evaluate the direct use values in the Bagré wetland. A documentary synthesis and individual surveys with a sample of 120 stakeholders spread across nine

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Salimnejad, Mehrdad, and Nikolaos Pappas. "On the Age of Information in a Two-User Multiple Access Setup." Entropy 24, no. 4 (2022): 542. http://dx.doi.org/10.3390/e24040542.

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This work considers a two-user multiple access channel in which both users have Age of Information (AoI)-oriented traffic with different characteristics. More specifically, the first user has external traffic and cannot control the generation of status updates, and the second user monitors a sensor and transmits status updates to the receiver according to a generate-at-will policy. The receiver is equipped with multiple antennas and the transmitters have single antennas; the channels are subject to Rayleigh fading and path loss. We analyze the average AoI of the first user for a discrete-time

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Walkowiak, Justyna. "Minority language policy regarding personal names – an overview." Eesti ja soome-ugri keeleteaduse ajakiri. Journal of Estonian and Finno-Ugric Linguistics 2, no. 1 (2011): 367–82. http://dx.doi.org/10.12697/jeful.2011.2.1.24.

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Language Policy (LP) with language planning as its implementation is now a well-established field; yet, as evidenced by the scarcity of scholarly literature, seldom concerned with personal names. The paper looks at personal names (given names and surnames) and discusses the ways in which they can be perceived as objects of minority LP. Policies regarding personal names are analysed within the framework of the traditional division of language planning into status, corpus and acquisition planning. These policies are then further examined according to other dimensions: what the object of a LP is,

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Xie, Runhan, Isaac Grosof, and Ziv Scully. "Heavy-Traffic Optimal Size- and State-Aware Dispatching." Proceedings of the ACM on Measurement and Analysis of Computing Systems 8, no. 1 (2024): 1–36. http://dx.doi.org/10.1145/3639035.

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Dispatching systems, where arriving jobs are immediately assigned to one of multiple queues, are ubiquitous in computer systems and service systems. A natural and practically relevant model is one in which each queue serves jobs in FCFS (First-Come First-Served) order. We consider the case where the dispatcher is size-aware, meaning it learns the size (i.e. service time) of each job as it arrives; and state-aware, meaning it always knows the amount of work (i.e. total remaining service time) at each queue. While size- and state-aware dispatching to FCFS queues has been extensively studied, lit

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SASAKI, A. "A Distributed Task Assignment Algorithm with the FCFS Policy in a Logical Ring." IEICE Transactions on Fundamentals of Electronics, Communications and Computer Sciences E88-A, no. 6 (2005): 1573–82. http://dx.doi.org/10.1093/ietfec/e88-a.6.1573.

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Zhang, Qi, Qiuhong Zhao, and Yashuai Li. "Integrating Replenishment Policy with GSAA-FCM Based Multi-Criteria Inventory Classification." International Journal of Computational Intelligence Systems 11, no. 1 (2018): 248. http://dx.doi.org/10.2991/ijcis.11.1.19.

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Sahkhar, Lizia, Bunil Kumar Balabantaray, and Satyendra Singh Yadav. "Efficient Cloudlet Allocation to Virtual Machine to Impact Cloud System Performance." International Journal of Information System Modeling and Design 13, no. 6 (2022): 1–21. http://dx.doi.org/10.4018/ijismd.297630.

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Performance is an essential characteristic of any cloud computing system. It can be enhance through parallel computing, scheduling and load balancing. This work evaluates the connection between the response time (RT) and virtual machine’s (VM) CPU utilization when cloudlets are allocated from the datacenter broker to VM. To accentuate the RT and VM’s CPU utilization, a set of 100 and 500 heterogeneous cloudlets are analyzed under hybridized provisioning, scheduling and allocation algorithm using CloudSim simulator. These includes space shared (SS) and time shared (TS) provisioning policy, shor

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Chang, Zheng, Jing Lu, and Zhuang Qi. "Location Analysis for Dry Ports Based on FCM." Applied Mechanics and Materials 97-98 (September 2011): 1022–26. http://dx.doi.org/10.4028/www.scientific.net/amm.97-98.1022.

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This paper deals with the problem of optimally locating dry ports for seaport. Evaluation system for dry port location decision is established and FCM is applied to solve the problem. The model is used to select optimal location for inland terminals of port Tianjin in China. It is shown that among the direct hinterland of the seaport, Beijing is most suitable for operating dry port, there are also eight inland cities as alternatives. According to the result comparison, industry transfer and relevant policy tendency should also be considered when make the dry port location decision.

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Morgenstern, Craig. "Methods for Precise Submesh Allocation." Scientific Programming 3, no. 4 (1994): 353–64. http://dx.doi.org/10.1155/1994/317328.

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In this article we describe and compare several recently proposed algorithms for precise submesh allocation in a two-dimensional mesh connected system. The methods surveyed include various frame sliding strategies, the maximum boundary value heuristic, and interval set scan techniques. In addition, a new enhancement to the interval set scan method is described. This enhancement results in an algorithm that has better allocation and run-time performance under a FCFS scheduling policy than any of the other proposed methods. We present results drawn from an extensive simulation study to illustrat

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Baek, Jung Woo. "On the Control Policy of a Queuing–Inventory System with Variable Inventory Replenishment Speed." Mathematics 12, no. 2 (2024): 194. http://dx.doi.org/10.3390/math12020194.

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This paper considers a make-to-order production–inventory system that comprises a production facility and an inventory warehouse. Customers arrive at the facility to place an order, and the orders are processed using the first-come-first-served (FCFS) discipline. The warehouse supplies inventory items (raw materials) for the production process, and the warehouse inventory is replenished by internal production. The speed of internal production can be controlled through additional costs. If the inventory level drops to zero, the unmet demand waits in the facility until the inventory is replenish

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Choi, Bong Dae, Bara Kim, and Sung Ho Choi. "An M/G/1 queue with multiple types of feedback, gated vacations and FCFS policy." Computers & Operations Research 30, no. 9 (2003): 1289–309. http://dx.doi.org/10.1016/s0305-0548(02)00071-0.

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Keho, Yaya. "Budget Deficit and Economic Growth in Cote d’Ivoire: A Search for Threshold." Journal of Economics and Public Finance 9, no. 3 (2023): p106. http://dx.doi.org/10.22158/jepf.v9n3p106.

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This study examines the effect of budget deficit on economic growth in Cote d’Ivoire. The study applies threshold regression model to annual data covering the period 1970-2022. The results show that fiscal policy significantly influences economic growth rate. Further, the study establishes that the threshold level of budget deficit conducive for economic growth is 4% of GDP. Beyond this threshold, budget deficit is detrimental to economic growth. As the actual budget deficit is above 4%, the study recommends measures aimed at increasing domestic revenue and enhancing efficiency of public spend

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Akram, Hafiz Wasim, Samreen Akhtar, Alam Ahmad, Imran Anwar, and Mohammad Ali Bait Ali Sulaiman. "Developing a Conceptual Framework Model for Effective Perishable Food Cold-Supply-Chain Management Based on Structured Literature Review." Sustainability 15, no. 6 (2023): 4907. http://dx.doi.org/10.3390/su15064907.

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This paper reviews the literature on perishable food cold-chain management (FCCM) in order to assess its current state, pinpoint its knowledge gaps, and suggest a framework for addressing the issues faced by this industry. This work examines 103 academic articles on the topic of the perishable food supply chain published in various journals between 2001 and 2022. Research publications were selected from two reputed databases—Scopus and Web of Science. The study finds that the current trend in FCCM is toward sustainable FCCM, which offers financial, ecological, and social benefits. However, sus

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Aydin Keskin, Gulsen, and Coskun Ozkan. "Multiple Criteria ABC Analysis with FCM Clustering." Journal of Industrial Engineering 2013 (December 18, 2013): 1–7. http://dx.doi.org/10.1155/2013/827274.

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The number of stock keeping units (SKUs) possessed by organizations can easily reach quite a few. An inventory management policy for each individual SKU is not economical to design. ABC analysis is one of the conventionally used approaches to classify SKUs. In the classical method, the SKUs are ranked with respect to the descending order of the annual dollar usage, which is the product of unit price and annual demand. The few of the SKUs that have the highest annual dollar usage are in group A and should be taken into account mostly; the SKUs with the least annual dollar usage are in group C a

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AHOHOUNKPANZON, Michel, and Wilfried Gnipabo YERGO. "Déterminants des pratiques maraîchères et effets sur le revenu des ménages de riziculteurs au Bénin." Revue d’Economie Théorique et Appliquée 10, no. 1 (2020): 75–92. https://doi.org/10.62519/reta.v10n1a5.

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Résumé : Avec les difficultés que connait la filière coton, l’Etat béninois a entrepris une politique de soutien à la diversification du portefeuille d’activités des ménages ruraux afin de les prémunir contre les risques de pauvreté et d’insécurité alimentaire. Certaines filières agricoles stratégiques comme le riz et les cultures maraîchères connaissent de ce fait un intérêt soutenu. Cette étude se propose d’identifier les déterminants de « la diversification riz-cultures maraîchères » et d’évaluer le gain de revenu qu’elle induit pour les ménages dans les systèmes de production agricole au B

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Etim, Etim Osim, Emmanuel E. Daferighe, Ekwere Raymond Enang, and Mary Bassey Nyong. "CASH FLOW MANAGEMENT AND FINANCIAL PERFORMANCE OF SELECTED LISTED COMPANIES IN NIGERIA." INDO-ASIAN JOURNAL OF FINANCE AND ACCOUNTING 3, no. 1 (2022): 27–46. http://dx.doi.org/10.47509/iajfa.2022.v03i01.03.

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This study was aimed at examining the influence of cash flow management on financial performance of selected listed companies in Nigeria. This was premised on the conflicting results and assertions in the literature in respect to the influence of cash flow management and financial performance of entities. Ex-post facto research design was adopted for the study using secondary data of sixty-three (63) selected listed companies in the Nigerian Stock Exchange (NSE) for the period 2013 to 2019. The nature of data was panel data. The dependent variable for financial performance is Return on Asset (

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Bowring, Bill. "Chapter 6: The Impact (or Not) of the War in Ukraine on Russian Minorities and Minorities Policy." European Yearbook of Minority Issues Online 21, no. 1 (2024): 128–54. http://dx.doi.org/10.1163/22116117_02101007.

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Abstract In this article I show how the Russian Federation (Russia) seeks to sustain an impression of business as usual in its minorities policy and administration, while normalising as far as possible the results of its illegal annexation of Crimea in 2014, and its full-scale invasion of Ukraine on 24 February 2022. I start with the controversial All-Russian Census, 2020–2021, conducted from October to December 2021, and the disputes concerning its results. Second, I turn to the Fifth Report submitted by Russia to the Advisory Committee on the Framework Convention for the Protection of Nation

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Patra, Prashant Kumar, and Padma Lochan Pradhan. "Dynamic FCFS ACM Model for Risk Assessment on Real Time Unix File System." International Journal of Advanced Pervasive and Ubiquitous Computing 5, no. 4 (2013): 41–62. http://dx.doi.org/10.4018/ijapuc.2013100104.

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The access control is a mechanism that a system grants, revoke the right to access the object. The subject and object can able to integrate, synchronize, communicate and optimize through read, write and execute over a UFS. The access control mechanism is the process of mediating each and every request to system resources, application and data maintained by a operating system and determining whether the request should be approve, created, granted or denied as per top management policy. The AC mechanism, management and decision is enforced by implementing regulations established by a security po

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Li, Jianjun, and Liwei Liu. "On an M/G/1 queue in random environment with Min(N, V) policy." RAIRO - Operations Research 52, no. 1 (2018): 61–77. http://dx.doi.org/10.1051/ro/2018006.

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In this paper, we analyze an M∕G∕1 queue operating in multi-phase random environment with Min(N, V) vacation policy. In operative phase i, i = 1, 2, …, n, customers are served according to the discipline of First Come First Served (FCFS). When the system becomes empty, the server takes a vacation under the Min(N, V) policy, causing the system to move to vacation phase 0. At the end of a vacation, if the server finds no customer waiting, another vacation begins. Otherwise, the system jumps from the phase 0 to some operative phase i with probability qi, i = 1, 2, …, n. And whenever the number of

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Vis, P., R. Bekker, and R. D. van der Mei. "Heavy-traffic limits for polling models with exhaustive service and non-FCFS service order policies." Advances in Applied Probability 47, no. 4 (2015): 989–1014. http://dx.doi.org/10.1239/aap/1449859797.

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We study cyclic polling models with exhaustive service at each queue under a variety of non-FCFS (first-come-first-served) local service orders, namely last-come-first-served with and without preemption, random-order-of-service, processor sharing, the multi-class priority scheduling with and without preemption, shortest-job-first, and the shortest remaining processing time policy. For each of these policies, we first express the waiting-time distributions in terms of intervisit-time distributions. Next, we use these expressions to derive the asymptotic waiting-time distributions under heavy-tr

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Vis, P., R. Bekker, and R. D. van der Mei. "Heavy-traffic limits for polling models with exhaustive service and non-FCFS service order policies." Advances in Applied Probability 47, no. 04 (2015): 989–1014. http://dx.doi.org/10.1017/s0001867800048989.

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We study cyclic polling models with exhaustive service at each queue under a variety of non-FCFS (first-come-first-served) local service orders, namely last-come-first-served with and without preemption, random-order-of-service, processor sharing, the multi-class priority scheduling with and without preemption, shortest-job-first, and the shortest remaining processing time policy. For each of these policies, we first express the waiting-time distributions in terms of intervisit-time distributions. Next, we use these expressions to derive the asymptotic waiting-time distributions under heavy-tr

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MBANG, Marthe Olga. "Les effets des mésalignements du taux de change effectif réel sur le volume des exportations en zone CEMAC." Revue d’Economie Théorique et Appliquée 11, no. 1 (2021): 21–40. https://doi.org/10.62519/reta.v11n1a2.

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Résumé : Cet article analyse les effets des mésalignements du taux de change effectif réel sur le volume des exportations en zone CEMAC. Pour cela, les mésalignements sont d’abord calculés à partir de l’estimation du taux de change effectif réel (TCER), des données de la Banque Mondiale et du Centre d’Etudes Prospectives et d’Information Internationale (CEPII) sur la période 2000-2017. Le modèle explicatif du volume des échanges de la zone est estimé grâce à la technique des doubles moindres carrés en panel sur la même période. Les résultats révèlent que ces mésalignements contribuent à l’accr

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