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Exploiting domain structures in heuristic algorithms for the set covering problem

  • Full or part time
  • Application Deadline
    Wednesday, January 15, 2020
  • Funded PhD Project (Students Worldwide)
    Funded PhD Project (Students Worldwide)

Project Description

Start date: May 2020

Wanted - exceptional doctoral candidates to undertake trailblazing, transformative research alongside outstanding early-career researchers.

Coventry University (CU) is inviting applications from suitably-qualified graduates for a fully-funded PhD studentship.

This doctoral (PhD) project has been devised and developed by a leading early-career researcher at Coventry University. The Trailblazer Scheme provides doctoral researchers with an innovative and dynamic intellectual space in which to undertake transformative research, whilst fully supported by a team of experienced supervisors.

Details of the PhD project:

Many real-world optimisation problems in various domains including computational biology and wireless sensor networks are formulated as the set covering problem, for which no fast optimum algorithm is known to date. In practice, at least for large problem instances, inexact algorithms are used that (are hoped to) provide near-optimum solutions in affordable time. Such algorithms are often based on (meta) heuristics that are general and do not exploit domain-specific structures of given instances, which is exactly the gap considered in this research. To address this gap, this research develops a novel general data science framework to identify domain-specific heuristics. We will devise several probabilistic heuristics and record extensive data on their performance at run-time, on data sets from at least three domains. The generated data sets are then analysed using statistical and machine learning data analytics, based on which further modifications are made and improved heuristics are obtained and further analysed. Eventually, selected heuristics for each domain are identified. The resulting algorithms for each domain are expected to outperform existing state-of-the-art. Finally, the obtained heuristics are integrated under a unique hyper-heuristic algorithm, which determines at run-time which ones to use for a given problem instance.

Benefits:

The successful candidate will receive comprehensive research training including technical, personal and professional skills.
All researchers at Coventry University (from PhD to Professor) are part of the Doctoral College and Centre for Research Capability and Development, which provides support with high-quality training and career development activities.

Candidate specification:

• A minimum of a 2:1 first degree in a relevant discipline/subject area with a minimum 60% mark in the project element or equivalent with a minimum 60% overall module average PLUS the potential to engage in innovative research and to complete the PhD within a 3.5 years
• a minimum of English language proficiency (IELTS overall minimum score of 7.0 with a minimum of 6.5 in each component)

For further details see: https://www.coventry.ac.uk/research/research-students/making-an-application/

Additional items for candidate specification:

• Highly skilled in algorithm design and computer programming
• Deep understanding of computer science theory

How to apply:

To find out more about the project please contact

All applications require full supporting documentation, a covering letter, plus a 2000-word supporting statement showing how the applicant’s expertise and interests are relevant to the project.

Funding Notes

Full studentship which includes tuition fees and living expenses for a doctoral candidate over 3.5 years.

Stipend rates set by UKRI with an annual projected average increase of 1.25% per year.

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