Personal information

Quantum Computing Applications, Quadratic Unconstrained Binary Optimisation, Digital Annealer, Evolutionary Computation
United Kingdom, Spain

Biography

I joined Fujitsu Research of Europe Limited, based in the UK, in March 2022 where I now work as a Senior Researcher. My current research area focuses on R&D of applications for quantum circuit simulation at large scale, by taking advantage of different methods and technologies such as tensor networks and exascale supercomputers. At Fujitsu, I have also worked on quantum-inspired computing technologies such as the Digital Annealer for solving Quadratic Unconstrained Binary Optimisation (QUBO) problems. In particular, I contributed to develop a general penalty framework comprising different penalty methods that can automatically find suitable penalty weights for constraint functions, given any constrained optimisation problem that is expressible as QUBO.

From 2021 to 2022, I completed a post-doctoral programme at the University of Exeter in the UK to research penalty methods for QUBO. From January 2017 to June 2021, I completed a PhD degree in Computer Science at the University of Exeter, supervised by Dr Alberto Moraglio and Prof Jonathan Fieldsend. My PhD research area was theoretical Evolutionary Computation, specifically concerning the population behaviour of Evolutionary Algorithms, crossover operators and associated search space structure, as well as Fitness Landscape Analysis.

From 2009 to June 2016, I completed a Computer Engineering Licentiate degree "Licenciado en Ingeniería Informática" at the University of Seville in Spain. This degree corresponds to a 5-year programme in the European Higher Education Area second cycle. My final degree project titled "Adaptive Mutation Factor in Genetic Algorithms", obtained first-class mark and was supervised by Agustín Riscos Núñez (ORCID: 0000-0002-5409-3578). The project's software repository is available online at <https://github.com/marcosdg/darwin>. In 2013, I was an intern for one-semester at the Department of Computer Science and Artificial Intelligence at the University of Seville, where I participated in several workshops and brainstorming sessions given by world-leading researchers Gheorghe Păun and Grzegorz Rozenberg.

Activities

Employment (5)

Fujitsu (United Kingdom): Slough, England, GB

2023-04 to present | Senior Researcher (Quantum Research Group)
Employment
Source: Self-asserted source
Marcos Díez García

Fujitsu (United Kingdom): Slough, England, GB

2022-03-07 to 2023-04 | Researcher (Optimization Platform Technology Group)
Employment
Source: Self-asserted source
Marcos Díez García

University of Exeter: Exeter, Devon, GB

2021-02-08 to 2022-01 | Postdoctoral Research Associate (College of Engineering, Mathematics and Physical Sciences)
Employment
Source: Self-asserted source
Marcos Díez García

University of Exeter: Exeter, Devon, GB

2019-01-28 to 2019-03-28 | Postgraduate Teaching Assistant (Dept. Computer Science)
Employment
Source: Self-asserted source
Marcos Díez García

University of Exeter: Exeter, Devon, GB

2018-01-21 to 2018-03-30 | Postgraduate Teaching Assistant (Dept. Computer Science)
Employment
Source: Self-asserted source
Marcos Díez García

Education and qualifications (3)

University of Exeter: Exeter, Devon, GB

2017-01-06 to 2021-06-28 | PhD in Computer Science (Computer Science)
Education
Source: Self-asserted source
Marcos Díez García

Universidad de Sevilla: Sevilla, Andalucía, ES

2009-09-10 to 2016-08-15 | Computer Engineer Licentiate
Education
Source: Self-asserted source
Marcos Díez García

Universidad de Sevilla: Sevilla, Andalucía, ES

2013-01-01 to 2013-06-25 | Intern student (Department of Computer Science and Artificial Intelligence)
Qualification
Source: Self-asserted source
Marcos Díez García

Works (7)

Survey on Computational Applications of Tensor-Network Simulations

IEEE Access
2024 | Journal article
Contributors: Marcos Díez García; Antonio Márquez Romero
Source: check_circle
Crossref

AutoQUBO v2: Towards Efficient and Effective QUBO Formulations for Ising Machines

GECCO '23 Companion: Proceedings of the Companion Conference on Genetic and Evolutionary Computation
2023-07-15 | Conference poster | Author
Contributors: Justin Pauckert; Mayowa Ayodele; Marcos Díez García; Serban Georgescu; Matthieu Parizy
Source: Self-asserted source
Marcos Díez García
grade
Preferred source (of 2)‎

Reformulating Portfolio Optimisation within a General Penalty Framework for Quadratic Unconstrained Binary Optimisation

Workshop on New Architectures for Search and Optimization (NASO), IJCAI-ECAI 2022, Vienna, Austria
2022-07-24 | Conference paper | Investigation, Formal analysis, Writing - original draft, Writing - review & editing
Contributors: Marcos Díez García
Source: Self-asserted source
Marcos Díez García

Exact and Sequential Penalty Weights in Quadratic Unconstrained Binary Optimisation with a Digital Annealer

Proceedings of the Genetic and Evolutionary Computation Conference Companion
2022-07-19 | Conference poster | Investigation, Formal analysis, Methodology, Writing - original draft, Writing - review & editing
Contributors: Marcos Díez García
Source: Self-asserted source
Marcos Díez García

Unifying a Geometric Framework of Evolutionary Algorithms and Elementary Landscapes Theory

University of Exeter
2021-06-28 | Dissertation or Thesis | Investigation, Writing - original draft, Writing - review & editing
Contributors: Marcos Díez García
Source: Self-asserted source
Marcos Díez García

A Unifying View on Recombination Spaces and Abstract Convex Evolutionary Search

Evolutionary Computation in Combinatorial Optimization, EvoCOP 2019
2019-03-28 | Conference paper | Investigation, Writing - original draft, Writing - review & editing
Part of ISBN: 9783030148119
Part of ISBN: 9783030148126
Part of ISSN: 0302-9743
Part of ISSN: 1611-3349
Contributors: Marcos Díez García
Source: Self-asserted source
Marcos Díez García
grade
Preferred source (of 2)‎

Bridging Elementary Landscapes and a Geometric Theory of Evolutionary Algorithms: First Steps

15th International Conference PPSN, Coimbra, Portugal, September 8–12, 2018, Proceedings, Part II
2018-09-01 | Conference paper | Investigation, Writing - original draft, Writing - review & editing
Contributors: Marcos Díez García
Source: Self-asserted source
Marcos Díez García
grade
Preferred source (of 2)‎