Searched for: subject:"scheduling"
(1 - 20 of 129)

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Cheng, Long (author), Wang, Ying (author), Liu, Qingzhi (author), Epema, D.H.J. (author), Liu, Cheng (author), Mao, Ying (author), Murphy, John (author)
Large data centers are currently the mainstream infrastructures for big data processing. As one of the most fundamental tasks in these environments, the efficient execution of distributed data operators (e.g., join and aggregation) are still challenging current data systems, and one of the key performance issues is network communication time....
journal article 2021
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de Weerdt, M.M. (author), Baart, Robert (author), He, L. (author)
Single-machine scheduling where jobs have a penalty for being late or for being rejected altogether is an important (sub)problem in manufacturing, logistics, and satellite scheduling. It is known to be NP-hard in the strong sense, and there is no polynomial-time algorithm that can guarantee a constant-factor approximation (unless P=NP). We...
journal article 2021
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Stipanovic, Irina (author), Bukhsh, Zaharah Allah (author), Reale, Cormac (author), Gavin, Kenneth (author)
Aged earthworks constitute a major proportion of European rail infrastructures, the re-placement and remediation of which poses a serious problem. Considering the scale of the networks involved, it is infeasible both in terms of track downtime and money to replace all of these assets. It is, therefore, imperative to develop a rational means...
journal article 2021
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Lao, L. (author), van Someren, J. (author), Ashraf, I. (author), Almudever, Carmen G. (author)
Quantum algorithms need to be compiled to respect the constraints imposed by quantum processors, which is known as the mapping problem. The mapping procedure will result in an increase of the number of gates and of the circuit latency, decreasing the algorithm’s success rate. It is crucial to minimize mapping overhead, especially...
journal article 2021
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Al-Khanak, Ehab Nabiel (author), Lee, Sai Peck (author), Khan, Saif Ur Rehman (author), Behboodian, Navid (author), Khala, Osamah Ibrahim (author), Verbraeck, A. (author), van Lint, J.W.C. (author)
Scientific Workflow Applications (SWFAs) can deliver collaborative tools useful to researchers in executing large and complex scientific processes. Particularly, Scientific Workflow Scheduling (SWFS) accelerates the computational procedures between the available computational resources and the dependent workflow jobs based on the researchers’...
journal article 2021
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Fu, J. (author), Nunez, Alfredo (author), De Schutter, B.H.K. (author)
Preventive maintenance is applied in distribution networks to prevent failures by performing maintenance actions on components that are at risk. Distributed generators (DGs) and batteries can be used to support power to nearby loads when they are isolated due to maintenance. In this paper, a novel short-term preventive maintenance method is...
journal article 2021
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Yürüşen, Nurseda Y. (author), Rowley, Paul N. (author), Watson, S.J. (author), Melero, Julio J. (author)
While many operation and maintenance (O&M) decision support systems (DSS) have been already proposed, a serious research need still exists for wind farm O&M scheduling. O&M planning is a challenging task, as maintenance teams must follow specific procedures when performing their service, which requires working at height in adverse...
journal article 2020
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Deng, Q. (author), Santos, Bruno F. (author), Curran, R. (author)
This paper presents a practical dynamic programming based methodology to optimize the long-term maintenance check schedule for a fleet of heterogeneous aircraft. It is the first time that the long-term aircraft maintenance check schedule is optimized, integrating different check types in a single schedule solution. The proposed methodology...
journal article 2020
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Chen, L. (author), Huang, Y. (author), Zheng, Huarong (author), Hopman, J.J. (author), Negenborn, R.R. (author)
Urban waterways have great potential in cargo transport to relieve the congestion in the overloaded road networks. This paper explores the potential of applying cooperative multi-vessel systems (CMVSs) to improve the safety and efficiency of transport in urban waterway networks. A framework consisting of vessel train formation (VTF) and...
journal article 2020
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Safaei Farahani, S. (author), Bleeker, C.C.A. (author), van Wijk, A.J.M. (author), Lukszo, Z. (author)
The current focus on the massive CO2 reduction highlights the need for the rapid development of technology for the production, storage, transportation and distribution of renewable energy. In addition to electricity, we need other forms of energy carriers that are more suitable for energy storage and transportation. Hydrogen is one of the...
journal article 2020
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Lambelho, Miguel (author), Mitici, M.A. (author), Pickup, Simon (author), Marsden, Alan (author)
To mitigate air traffic demand-capacity imbalances, large European airports implement strategic flight schedules, where flights are assigned arrival/departure slots several months prior to execution. We propose a generic assessment of such strategic schedules using predictions about arrival/departure flight delays and cancellations. We...
journal article 2020
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Kucharski, R.M. (author), Fielbaum, Andres (author), Alonso Mora, J. (author), Cats, O. (author)
Sharing rides in on-demand systems allow passengers to reduce their fares and service providers to increase revenue, though at the cost of adding uncertainty to the system. Notably, the uncertainty of ride-pooling systems stems not only from travel times but also from unique features of sharing, such as the dependency on other passengers'...
journal article 2020
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Pudane, B. (author)
It is widely expected that automated vehicles (AVs) will revolutionise travel experience by better facilitating various on-board activities. While these activities could make travel more pleasant, as is often supposed, they could also affect daily schedules, the related travel choices, and finally, the aggregate travel patterns – possible...
journal article 2020
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Schneider, A.J. Thomas (author), van Essen, J.T. (author), Carlier, Mijke (author), Hans, Erwin W. (author)
Surgery groups are clustered surgery procedure types that share comparable characteristics (e.g. expected duration). Scheduling OR blocks leaves many options for operational surgery scheduling and this increases the variation in usage of both the OR and downstream beds. Therefore, we schedule surgery groups to reduce the options for...
journal article 2020
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van den Boom, A.J.J. (author), Muijsenberg, Marenne van den (author), De Schutter, B.H.K. (author)
In this paper we discuss scheduling of semi-cyclic discrete-event systems, for which the set of operations may vary over a limited set of possible sequences of operations. We introduce a unified modeling framework in which different types of semi-cyclic discrete-event systems can be described by switching max-plus linear (SMPL) models. We use...
journal article 2020
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Aslan, Y. (author), Roederer, A.G. (author), Yarovoy, Alexander (author)
The system effects and trade-offs of varying the minimal angular separation among multiple simultaneous co-frequency users are investigated for a high-capacity multibeam communication scenario. Through the statistical system simulations, it is demonstrated that the optimal (non-zero) value of the required separation depends on the base station...
conference paper 2020
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Zhou, X. (author), van Gelder, P.H.A.J.M. (author), Liang, Yongtu (author), Zhang, Haoran (author)
As the main way for the long-distance transportation of refined products, multi-products pipelines are of vital importance to the regional energy security. The supply reliability evaluation of multi-product pipeline systems can improve the effective response to unexpected disruptions and guarantee the reliable oil supply. Based on reliability...
journal article 2020
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Wallace, Mark (author), Yorke-Smith, N. (author)
The cyclic hoist scheduling problem (CHSP) is a well-studied optimisation problem due to its importance in industry. Despite the wide range of solving techniques applied to the CHSP and its variants, the models have remained complicated and inflexible, or have failed to scale up with larger problem instances. This article re-examines...
journal article 2020
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Wang, Cheng Ming (author), Wang, Q. (author), Gaber, Abdo (author), Guevara, Andrea P. (author), Pollin, Sofie (author)
A massive MIMO network can serve ten's of users simultaneously. However, in dense scenarios the users are potentially closely-spaced, potentially resulting in substantial inter-user interference. Scheduling can overcome this by selecting the users that lead to the highest combined spectral efficiency. As scheduling comes with a significant...
journal article 2020
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Ghotge, R. (author), Paanakker, Marnix (author), van Wijk, A.J.M. (author), Baeten, Brecht (author), Lukszo, Z. (author)
Aggregation of sufficiently large electric vehicle (EV) fleets and control over their charging schedules enables aggregators to utilise the flexibility of EV charging in the Day Ahead Market. Optimising the charge scheduling of such fleets enables time-shifting of electricity demand to hours when electricity is cheaper, reducing the...
conference paper 2020
Searched for: subject:"scheduling"
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