Guy Marshall

Mathematician, Agilist and Systems thinker

ABOUT
Guy is a fractional CTO, scale-up and tech advisor. He is open to part-time advisory roles.

He holds a PhD in Computer Science from University of Manchester, an MSc in Theoretical Physics from Kings College London, an MA in Mathematics from University of Cambridge, and is a Chartered Mathematician. He has over 10 years experience in managing people and delivery of software systems, especially data-centric and machine learning systems.

Guy does things he finds interesting, which usually involve data, systems thinking, and people. He speaks regularly to C-level about AI, culture, governance and data-driven decisions. Where research is beneficial to support decisions, he often uses mixed methods, gathering quantitative and qualitative data to gain unusual insights. A good example of this is his involvement in creating better AI diagrams and in his broader diagram research, as a way to communicate between different thinking patterns..

Based in Manchester (UK), he has lived in Poland, India and Iceland, and collaborated with teams located internationally. He is married with two boys, and can often be found in mountainous environments.

Hiking Borrowdale Corridor, Jan 2022

CAREER HIGHLIGHTS

  • Director of PorthouseDean, building a tech and R&D capability for a structural engineering SME (long term)
  • Tesco Technology Leadership Graduate Scheme alumni, amongst many things delivering a ML-based non-food preseason forecasting system, for products with no sales history. Leading teams in the UK and India
  • Ocado Technology’s first focused agile practitioner, resulting in a full international agile transformation and management coaching capability
  • 5 years independent consulting in data-driven agile transformation, in Iceland and Poland, supporting SMEs and multinationals (e.g. Thales, William Hill)
  • Charitable contributions: Trustee and committee chair of the Institute of Mathematics and it’s Applications (2013-2018), Council Member and Webmaster for Manchester Statistical Society (2017-present), and “IT guy” for several other small charities
  • Mouton D’Or Winner 2021 for Measuring diagram quality through semiotic morphisms; Theoretical Physics Prize winner for top result at KCL
  • Provided COVID scientific advice to UK government through SPI-M and SAGE

RECENT REPORTS

Test Trace & Isolate for Epidemic Control V-KEMS Report
February 2022

Public involvement in pandemic modelling: a qualitative study of Test, Trace and Isolate practices in the UK and implications for modelling
January 2022

Scholarly AI system diagrams as an access point to mental models
April 2021

SELECTED PEER-REVIEWED RESEARCH
Diagrams conference, 2022
Why Scholars Are Diagramming Neural Network Models
Italy

IWCS, 2021
Switching Contexts: Transportability Measures for NLP

Diagrams conference, 2021
Structuralist analysis for neural network system diagrams

Diagrams conference, 2021
Understanding scholarly Natural Language Processing system diagrams through application of VisDNA

Diagrams conference, 2021
Number and quality of diagrams in scholarly publications is associated with number of citations

Beyond static papers: Rethinking how we share scientific understanding in ML-ICLR 2021 workshop
Diagrammatic summaries for neural architectures

Semiotica Journal, 2021
Measuring diagram quality through semiotic morphisms

SELECTED SPEAKING

Agile 2023
The Art and Science of Agile Diagramming: A Practical Guide
Edinburgh, UK

Agile Manchester 2023
Improving your diagramming
Manchester, UK

Agile 2022
Improving your diagramming
Nashville, USA

Diagrams 2022
An Investigation into the Scholarly Usage of Neural Network Systems Diagrams
Rome, IT

Manchester Statistical Society 2021
Modelling COVID-19
Virtual

Agile Manchester 2019
How to make multicultural agility work
Manchester, UK

BookingGo Go Innovate 2018
Motivation for successful teams
Manchester, UK

YouTube presentations

GET IN TOUCH

Guy always makes time for side collaborations and talks. If you want to chat about systems, innovation, data-driven decisions, hiking, or anything else, please reach out.

AFFILIATIONS
University of Manchester
PorthouseDean Ltd
Manchester Statistical Society
Institute of Mathematics