Elina Rönnberg

Publications33
h-index6
Citations146
Highly Influential Citations9
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Automating the self-scheduling process of nurses in Swedish healthcare: a pilot study
Hospital wards need to be staffed by nurses round the clock, resulting in irregular working hours for many nurses. Over the years, the nurses’ influence on the scheduling has been increased in order… Expand
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An optimisation approach for pre-runtime scheduling of tasks and communication in an integrated modular avionic system
TLDR
This paper addresses a pre-runtime multiprocessor scheduling problem for an avionic system with periodic tasks, where each task is beforehand assigned to a processor. Expand
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An A* Algorithm for Solving a Prize-Collecting Sequencing Problem with One Common and Multiple Secondary Resources and Time Windows
TLDR
We extend the JSOCMSR by considering job-specific time windows, and instead of minimizing the makespan we aim at finding a feasible solution that maximizes the prizes of scheduled jobs. Expand
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Automatic Scheduling of Nurses: What Does It Take in Practice?
TLDR
This paper is based on the result of two case studies, which will provide insights into real world examples, including evaluation and feedback from the wards. Expand
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Column generation in the integral simplex method
TLDR
The integral simplex method for set partitioning problems allows only pivots-on-one to be made, which results in a primal all-integer method. Expand
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All-integer column generation for set partitioning: Basic principles and extensions
TLDR
Column generation, combined with an appropriate integer programming technique, has shown to be a powerful tool for solving huge integer programmes arising in various applications. Expand
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A∗-based construction of decision diagrams for a prize-collecting scheduling problem
TLDR
We propose a novel construction scheme for relaxed multi-valued DDs for a scheduling problem in which a subset of elements has to be selected from a ground set and the selected elements need to be sequenced. Expand
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Contributions within two topics in integer programming : nurse scheduling and column generation
TLDR
Integer programming can be used to provide solutions to complex decision and planning problems occurring in a wide variety of situations. Expand
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A* Search for Prize-Collecting Job Sequencing with One Common and Multiple Secondary Resources
TLDR
We consider a sequencing problem with time windows, in which a subset of a given set of jobs shall be scheduled. Expand
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The fixed charge transportation problem: a strong formulation based on Lagrangian decomposition and column generation
TLDR
A new and strong convexified formulation of the fixed charge transportation problem is provided. Expand
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