Category Archives: 1st Open GSS Conference

Global Markets – Model and Policies – Reference

Here is a reference on how network theory can be employed to assess the fragility of financial markets:

 

http://www.sciencedirect.com/science/article/pii/S0304393211000481

 

Abstract:

This paper develops a network model of interbank lending in which unsecured claims, repo activity and shocks to the haircuts applied to collateral assume centre stage. We show how systemic liquidity crises of the kind associated with the interbank market collapse of 2007–2008 can arise within such a framework, with funding contagion spreading widely through the web of interlinkages. Our model illustrates how greater complexity and concentration in the financial network may amplify this fragility. The analysis suggests how a range of policy measures – including tougher liquidity regulation, macro-prudential policy, and surcharges for systemically important financial institutions – could make the financial system more resilient.

Global Systems Science – Workshop I

The group included scientists and (at least) two people with experience of applying scientific methods in a policy context, one from a company with 300,000 employees worldwide.

The context for the discussion was the paper on GSS by Ralph Dum (available on this site).

There was consensus that Global System Science is policy oriented.

The term ‘global’ is interpreted as meaning the whole system and can apply at different levels including the city level, national level and international level worldwide. Global system have entangled subsystems that cannot be analysed in isolation, e.g. water, waste, power, transport, housing, crime, employment, climate, etc. Geography and history (path dependence) are usually important. Global systems have many levels.

There was (implicit) consesus that GSS involves systems of systems and networks of networks.

Some systems have to be modelled bottom-up from individual agents.

Although we believe GSS must involve policy, scientists are not good at interfacing to policy makers. The example was given of working with the mayor of a large city. These are smart people who handle complexity all the time. The example included talking to the mayor to understand how they see their problems, and pointing out that the issues are coupled and may be best handled from a systems perspective.

Global systems science can be defined around POLICY INFORMATICS, i.e. building ICT systems to address particular policy issues. The example was given of the $180 million tem year research programme at Los Alamos that started with the US Federal Clean Air Act which could not be implemented because no-one understood how road traffic caused polutants (it can be noted that this generated new science).

There was a discussion of computability.

There was (implicit) consensus that GSS involves Big Data.

Global System Science can be viewed in terms of coordination failure. This can include faliyre cascades. This was considered to be a fruitful direction.

Much more was discussed. The following points were made in conclusion:

* we need to make a bridge between scientists and policy makers
scientists need to usnderstand the language and methods of policy makers
scientists need to be better communicators (some are better at this than others)

* it is useful to consider coordination faliures and cascades of failure
we need a list of exemplar Global Systems
this can help to make the bridge

* we are close to having useful modelling of heterogeneous agents on (changing) (multilevel) networks (of networks)

+ there is the issue of computatiblity (related to topology, local v global) and new ideas in computation.

sorry for leaving a lot out, more to come …

In the meantime we all read Ralph Dum’s paper for the next session.

Information Society Workshops

Chairs: Prof. Patrik Jansson and Ulf Dahlsten

The overall aim of the three workshops (Thu, Fri, Sat) is to identify “ICT Challenges to Global Systems Science”. In each case there are three  workshops in parallel (the ICT workshop + two others) so out of the 55-65 conference participants present perhaps 15-25 will be at “our” workshop. We have 1.5-2 hours scheduled for each workshop, and we should use around half that time for presentations and half for discussions.

This means that each speaker has 15 minutes for the prepared interventions and 15-20 minutes for discussion. In your presentations, please try to highlight opportunities, challenges and open questions and end with a slide (or a hand-out) summarizing these as a basis for the discussion.

Thursday, 8th November 2012, 17.00 – 16.30:

 

Information Society (1):  The  ICT challenges  to  Global  Systems  Science  – Chair:

Ulf  Dahlsten, former Director at the European Commission, Global Climate Forum

 

Main topics and questions:

 

What are the main ICT  challenges for GSS research and evidence-building?

How to enlarge the research community and involve more ICT experts?

How should the challenges be tackled?

 

Please provide insights on key questions for future Research and Development directions relevant for: 1) ICT and 2) policy areas.

 

Speakers:

 

Per Öster: E-science and European Grid Computing.

Vittorio Loreto: ICT and Global online communities.

Chris Barrett: Verification and validation of simulation models: the roles of theory, experimentation and observation.

Other participants: Martin Elsman, Patrik Jansson, Wolfgang Boch

 

 

 

 

Friday, 9th November 2012, 10.30 -12.30:

Information Society (2) – Computer Science meets Global Systems Science – Chair: Prof. P. Jansson, Chalmers University of Technology, Sweden

 

Topics and questions:

 

 

What is the role of computer science in Global Systems Science?

What specification-, modelling- and implementation-languages are useful for GSS?

What visualisation and user interfaces are needed?

What is the role of open and transparent data, new ontologies and structured data?

What is the role of scientific code? (e.g. common languages, specifications and open implementations).

How can we make models and results easily accessible and deployable?

How can we make models and results of modelling – including their strengths and limitations – understandable and accessible to diverse stakeholders?

 

Please provide insights on key questions for future Research and Development directions relevant for: 1) ICT and 2) policy areas.

 

 

Contributors / participants:

 

Patrik Jansson: Introduction

Martin Elsman: Scientific code: common languages, specifications and open implementations

Zhengang Han: Modelling and visualization

Johan Jeuring: E-learning and mathematics

Other participants: John Sutcliffe-Braithwaite, Katharyna Szkuta,
Sat, Nov 10, 09.00 – 10.30:

ICT, Models and Narratives – Co-chairs:Patrik Jansson & Ilan Chabay

 

Topics and questions:

 

Verification and validation of simulation models: the roles of theory, experimentation and observation

Models and Narratives: bringing stakeholders into the process of GSS and GSS into societal processes via ICT
Speakers:

Jeremy Gibbons: “Dependent types for dependable modelling”

Michael Resch: “Verification and validation of simulation models:  the roles of theory, experimentation and observation”

David De Roure: “Software sustainability” or “myExperiment – sharing workflows

 

Some points to consider for GSS

To get the ball rolling…

• Systems approach to provide a framework for studying policy options, testing scenarios and decision making
• What needs to be considered and at what scale?
• Modelling techniques for analysis, predictions and forecasts.
• Incorporation of data – especially new data provided by user participation, data mining or ubiquitous computing
• Methods to offer new explanations, allow consultation and obtain feedback.
• Greater transparency and  relevance in periods of instability and uncertainty.

Models and Narratives

Models and Narratives for Policy in the Digital Age

 

Conveners: Steven Bishop, Peter Baudains, Ilan Chabay

Raison d’etre

Models are increasingly being used to address problems over different scales, hierarchies, and policy domains to develop a so-called ‘global systems science’. Such models—whether heuristic, analytical, or computational—are approximations tailored to specific contexts and questions. To be useful they must be understood, particularly by decision-makers, but also by society at large and this typically only takes place through the lens of a narrative. Indeed decision-makers often require narratives of policy issues to be prepared for them within a short time-scale.

 

Model outputs can provide the backbone of a narrative for a particular scenario or policy option. This is then clothed in different forms of expression, argument and storytelling. There is currently insufficient understanding into how such narratives can be constructed in such a way as to also clearly communicate the limitations and assumptions built into that model. We need to explore how to couple models of globally connected systems with narratives in culturally appropriate forms in order to offer insight and options that are generated by the models themselves.

 

To achieve this coupling, we need a better understanding of the emergence of narratives through social interactions, particularly in the face of a changing media landscape, facilitated by new and ubiquitous digital communication. This is because, as well as being formed directly from a scientific model, narratives can emerge through social interaction. The scientific backbone of a narrative can often be entirely overwhelmed or suppressed by narratives based on social and cultural identity. How can stories, games and art, perhaps embedded in digital communication, be used to bridge the gap between scientific models, policy-makers and citizens? Detecting socially emerging narratives from social media data may lead to the prediction of social trends and enable decision-makers to gauge responses to different policy options on short time-scales.

 

This workshop will consider how narratives fit into the developing research agenda focused on the use of ICT and models for global policy decisions, with the aim being to identify the crucial research questions for narratives in global systems science from the perspective of both global policy challenges and also ICT.


 

 

Workshop format

The first session will begin with an introduction to the workshop. This introduction will comprise of some framing talks by Steven Bishop, Julian Hunt (via video recording) and Ilan Chabay. During these introductory comments, a series of questions (see below) will be introduced, which aim to address the research area to be discussed during the workshop at a relatively high conceptual level. These will be circulated among participants beforehand. The workshop participants will be invited to respond to these questions.

 

The workshop will firstly discuss whether these questions are appropriate or whether they need to be re-framed. It will be considered whether or not these questions are sufficient, necessary, and specific for the research topic in the context of a science of global systems.

 

The workshops will then proceed with an open discussion to be chaired by Ilan and Steven, during which each question will be addressed in turn, and specific research challenges that fall under each of the questions will be determined. A list of these research challenges will be recorded during the discussions and displayed on the projector. These will form the basis of the subsequent scientific report.

 

A provisional agenda is shown below:

 

Thursday 8th November 17.00 – 19.00

17.00 Introductory talks and questions (Steven Bishop, Julian Hunt, Ilan Chabay)

17.30 Response by participants

18.00 Discussion on suitability of proposed questions

18.50 Agreement on questions

 

Friday 9th November 14.30 – 16.30

Discussion of each question in turn, specifying specific research challenges.

 

 

Proposed Research Questions

The questions we initially pose are outlined below:

 

  • What are the links between models and scenarios of Global Systems Science and the narratives derived from them, as expressed in different forms, cultures and communities? How can ICT help express such narratives?

 

  • How might a useful public understanding, including by policy-makers and corporate leaders, of Global Systems Science, via associated narratives, be developed to more effectively support decision-making?

 

  • How can ICT be used to assess the impact of a narrative on attitudes and collective behaviour change in diverse communities and across spatial and temporal scales?

 

  • How might digital methods (models, ICT) and their users and analogue methods (performance, non-digital 2 and 3 dimensional art) and their users interact and collaborate in creating narratives in order to initiate positive social change?