Steering Committee

The Diagrams steering committee contains experts from a variety of backgrounds, reflecting the multi-disciplinary nature of the conference.

The Steering Committee is responsible for:

  • choosing the chairs, and location, of Diagrams conferences
  • providing guidance to Diagrams conference organizers, on topics such as the reviewing process
  • publicizing the conference to diverse communities
  • maintaining the Diagrams series website and mailing list
  • financial aspects of the conference series
  • maintaining the Steering Committee.

The Steering Commitee membership is as follows:

  • In each even numbered year, the General Chair, Senior Program Chair, Co-Program Chairs and Local Chairs of the current Diagrams conference are invited to join the Steering Committee immediately after the conference has run.
  • In each odd numbered year, the Steering Committee will hold an election for one elected place. Nominations should be made, and seconded, by the members of the Steering Committee or the most recent Program Committee (i.e. from the previous year). It is the responsibility of the nominator to ensure that the nominee is willing to stand for election. Self-nominations are not permitted. If no nominations are received then no election will take place. The electorate comprises the current Steering Committee and the Program Committee members of the most recent conference. The elected place shall be filled by single transferrable vote. In the event of a tie, the Steering Committee Chair has the casting vote.
  • In each odd numbered year, the Steering Committee has the right to co-opt up to one person to join the Steering Committee. The choice of co-opted person, if any, will be made to ensure that the right balance of expertise and experience is held by the Steering Committee. Normally, this person will be selected from the most recent Program Committees.
  • For the above all terms are for six years and multiple terms are permitted.
  • One member of the Steering Committee will be assigned by the Steering Committee Chair to direct the online presence, duties to include maintaining the conference series’ web site and mailing list.

Term and Election Process for the Steering Committee Chair:

  1. A member of the Steering Committee shall be elected as Chair immediately after the conference has been held. They will hold the position for four years and until the completion of the election for a new Chair. The election is to take place immediately after the last Diagrams conference during their tenure. Their term of membership on the Steering Committee is automatically extended for another two years after the end of their tenure as Chair.
  2. The existing chair shall be responsible for seeking nominations for the position of chair and for running the election, unless they are nominated, in which case they should seek another member of the steering committee to run the election. Self-nominations are permitted. Nominators are responsible for ensuring nominees wish to be nominated.
  3. The electorate comprises the current Steering Committee. Voting is by single transferable vote. In the event of a tie, the current Chair will get the casting vote but may not at that stage vote for themselves.
  4. If the Chair leaves the position during their tenure, then this will trigger an election for a new Chair who will hold the position until two Diagrams conferences have been completed during their role.

19 September 2018


Steering Committee Members

The current members are all listed below, together with the dates of their current term.

Peter Rodgers (Steering Committee Chair) (2012 - 2022)

I am a Reader in the School of Computing, University of Kent and head of the Computational Intelligence Research Group. I research the layout and use of various diagrams, including graphs and Euler diagrams. Such representations are common in applications that need to represent the connectivity, intersection and containment of data items. Drawing these diagrams from abstract data is complex, and becomes even more difficult when both graphs and Euler diagrams are combined. Recent advances have permitted the effective drawing of some kinds of data. Extending this work to find aesthetic layout for any data set is now the prime research goal.

Jean-Michel Boucheix (2017-2023)

Peter Chapman (2018 - 2024)

I am a Lecturer in Computing at Edinburgh Napier University. I work on both logical aspects of diagrams, and their effectiveness via empirical evaluation. In particular, I study mechanisms for visualising set-based data, including Euler and linear diagrams. I also maintain an interest in Structural Proof Theory, which was the focus of my PhD.

Aidan Delaney (Publicity Committee Chair) (2014 - 2020)

I work at the University of Brighton as a Principle Lecturer. My research interests lie in diagrammatic logics. I've defined new diagrammatic logics and associated reasoning systems. I've also explored the connections between diagrammatic logics and formal language theory. I also have an interest in the industrial application of such logics and have worked with a number of companies in developing visual reasoning systems.

Gem Stapleton (2008 - 2024)

I am a Reader in Computer Science and Director of the Visual Modelling Group at the University of Brighton. Broadly speaking, my research aims to provide a more complete empirical and theoretical understanding of diagrams. My interests include establishing mathematical properties of diagrammatic logics, such as their expressiveness, decidability and completeness. I also work on automated diagram layout in order to produce visualizations of information. A major component of my research is to provide empirical insights into the graphical and topological features of diagrams that impact on human cognition.

Mateja Jamnik (2010 - 2022)

I am a Senior Lecturer at the University of Cambridge (UK) and hold the EPSRC Advanced Research Fellowship "Automating Informal Human Mathematical Reasoning". My PhD thesis at the University of Edinburgh, "Automating Diagrammatic Proofs of Arithmetic Arguments" broke new ground in automated reasoning. I was invited by CSLI Press, Stanford, to write a book about this work -- Mathematical Reasoning with Diagrams: From Intuition to Automation (2001). My work focuses on exploring how people solve problems in mathematics, in particular with the use of diagrams. I computationally model this type of reasoning, thus trying to enable machines to reason in a similar way to humans. Very few systems attempt to benefit from the power of such human techniques. In my work, I aim to do just that: integrate informal human reasoning techniques, such as the use of diagrams, with the proven successful formal techniques, such as different types of logic.

Amirouche Moktefi (2018-2024)

I am a Lecturer in Philosophy and member of the Ragnar Nurkse Department of Innovation and Governance at Tallinn University of Technology, Estonia. My areas of interest include the history of logic diagrams. I also study the role of diagrams in mathematical reasoning. In particular, I approach diagrams as scientific instruments and I investigate the role of imagination and rules in their construction and manipulation.

Helen Purchase (2014 - 2020)

I am Senior Lecturer in Computing Science at the University of Glasgow. My main research interest is in the evaluation of information visualisation techniques, and in particular, graph drawings (of various types). My work is strongly empirically based, and I have conducted experimental research with colleagues in a range of areas, including sketched graph drawing, biological networks, space-filling graph visualisations, animated dynamic graphs, visual aesthetics, and Euler diagrams. On a broader level, I am interested in experimental methods for HCI and how such methods develop within a research area over time - informed by experiences, successful or not. I enjoy the challenges of designing robust and valid experiments, and in encouraging and advising others to do the same. Recently, as part of my research into the aesthetics of interface design, I have become more interested in image processing metrics, and, in particular, whether it is possible for such metrics to be able to characterise aspects of human perception.

Atsushi Shimojima (Publicity Committee) (2013 - 2019)

I am Professor of Culture and Information Science at Doshisha University in Japan. I started studying diagrams as a Ph.D. student of late Jon Barwise, who, with John Etchemendy, initiated the modern logical research of diagrams. My research so far has been focused on applying semantical analysis of diagrammatic systems to make predictions on their cognitive potentials and verifying these predictions on the basis of psychological experimentation. A good sample of this coupling of semantic analysis and cognitive science is found in my recent publication with Yasuhiro Katagiri in the journal, Cognitive Science, entitled "A Eye-Tracking Study of Exploitations of Spatial Constraints in Diagrammatic Reasoning."

Stephanie Schwartz (2016 - 2022)

I am an Associate Professor of Computer Science at Millersville University, and my research interests include Artificial Intelligence and Cognitive Science. My research has focused on information graphics (graphs, specifically bar charts, appearing in popular media) as a form of language with a communicative intention. By applying natural language techniques to understanding information graphics, we can make them more broadly accessible, such as to visually impaired individuals and for indexing and searching in digital libraries. Through the process of modeling the communicative signals inherent in information graphics, we also come to better understand the cognitive and perceptual aspects of graph design. I enjoy an active and ongoing collaboration with a group at the University of Delaware dedicated to furthering this research.

Richard Burns (2016 - 2022)

I am an Associate Professor in the Computer Science Department at West Chester University in the US. My primary research interests are in the disciplines of machine learning, artificial intelligence, data mining, and natural language processing. Most recently, my applied research has investigated the usage and characteristics of information graphics in popular media and how graphic designers can specifically design visualizations in such a way that aids the comprehension of some desired parts of the graphic.

Yuri Uesaka (2015- 2022)

Previous Steering Committee Members

Michael Anderson, Dave Barker-Plummer, Alan Blackwell, B. Chandrasekaran, Peter Cheng, Phil Cox, Richard Cox, Tim Dwyer, George Furnas, Ashok Goel, Volker Haarslev, Mary Hegarty, John Howse, Roland Hubscher, John Lee, Emmanuel Manalo, Mark Minas, Kim Marriott, Bernd Meyer, Hari Narayanan, Ian Oliver, Beryl Plimmer, and Nik Swoboda.