MAY 2018

Grey Systems Theory and Uncertainty Analysis Book


We are currently co-ordinating and compiling a groundbreaking book, due to be published and released in May 2018, on the subject of  “Grey Systems Theory and Uncertainty Analysis”.  This is a combined effort from various Grey Systems network members, and will therefore utilise expertise from a variety of sources and international institutions.  Each chapter contribution will combine members research analysis together to highlight their theories, research and conclusions. 

We would like to say a big "thank you" to those members that have  worked on the various chapters for this book. If you have any questions, or would like to discuss any elements of this publication further, please don’t hesitate to contact Professor Yingjie Yang on



April 2018

2018 Grey Systems Analysis Conference and final International Network Project meeting

Due to a short  extension of the existing Leverhulme-funded International Grey Systems project (May 2018),  Professor Yingjie Yang, the principal investigator/project leader plans to host a FINAL Network Project meeting, specifically for members of the “Grey Systems and its Applications International Research Network”, in April 2018.  


The plan is to hold the meeting in Nanjing, China. To continue the momentum of this network, the International Association of Grey Systems and Uncertainty Analysis (launched in our 2016 project meeting), will also organise the 2018 Grey Systems Analysis Conference (in Nanjing too). This conference will be organised by our colleagues at the Nanjing University of Aeronautics and Astronautics and will be an ideal platform in which to promote the recently created “GSUA” Grey Systems society.  The network meeting will be incorporated into the conference, scheduled for the following dates:

  Friday 20th April to Monday 23rd April 2018

Please Note: the details and agenda for the 2018 Grey Systems Conference will be announced separately via the team in Nanjing, who will be hosting the event.

All international network members living outside of China will have their flights and accomodation (only) funded by the Leverhulme Trust.  These arrangements will be arranged in advance via the DMU as per previous e-mail correspondance. 


April 2018

Expert in uncertainty modelling due to visit the DMU from China. Lecture planned for 5th April.


Professor Baoding Liu from Nankai University in China will be visiting the DMU in early April and presenting his lecture as follows:-

Title: Uncertainty Theory: A Branch of Mathematics for Modelling Belief Degrees. 

Speaker: Prof. Baoding Liu,  Tsinghua University, China

Venue: Gateway House, GH3.51

Time: 05/04/2018; 2-3pm

His lecture will introduce some fundamental concepts of uncertainty theory and discuss why uncertainty theory is useful. This presentation is based on the speaker’s book Uncertainty Theory published by Springer-Verlag, Berlin.

Professor Baoding Liu received his B.S. degree in 1986 from Nankai University, an M.S. degree in 1989 and a Ph.D. degree in 1993 from the Chinese Academy of Sciences. He joined Tsinghua University as Associate Professor in 1996, and was appointed Professor of Mathematics in 1998. Dr. Liu's research led to the development of uncertainty theory that is a branch of mathematics for modeling belief degrees.  Click here to learn more about Professor Liu, his books, papers, service and research work.



February 2018

Prominent Canadian university professor visits the UK and lectures at the DMU!


Keith Hipel, a prominent and very well respected professor from the University of Waterloo, Canada visited the DMU on the 14th and 15th of February and presented two innovative research and analysis-based lectures.  

The first presentation, "Negotiations over Groundwater Contamination", was related to the technical application of a variety of data modelling and system analysis techniques, among which Grey Systems can also play a role. 

The second presentation "How to Conduct Original Research in Graduate Studies" was more related to research and training in general and aimed at a wider audience, which includes graduate students and research staff alike.  This particular lecture has proved to be extremely popular with graduate students across the globe and was just as well received at the DMU.      

Keith has been conducting lectures of this nature for many years and his subject knowledge and experience has gained him worldwide respect.  He has recently been appointed to the status of Officer of the Order of Canada by "Her Excellency the Right Honourable Julie Payette," Governor General of Canada.

Please click here to see Keith's first video, "Negotiations over Groundwater Contamination".







August 2017

International Network Project Meeting 


The final International Research Network Project Meeting was held at was held on Thursday the 3rd August 2017 at the De Montfort University (DMU) in Leicester, UK.

The project meeting enabled network members to come together as a group for the final time during the lifespan of the current project to discuss a number of related topics, including:

The forthcoming new book on Grey Systems and Uncertainty Analysis, with progress and further ideas regarding the delegates chapter contributions.

Looking forward and seeing how we can maintain our collaborations once the project has ended, while seeking to forge new partnerships, both during and after the project.

How the "Brexit effect" is likey to affect future funding.  Also, what other paths and options are open to us to secure funding and continue the good work achieved so far in the development and application of Grey Systems Anaysis  

In the afternoon, the network delegates were joined by a number of young scholars in a free-format debate where all aspects of Grey Systems were discussed, including how to spread the word on Grey Systems to a wider audience and in what other ways Grey Systems Analysis might be utilised.

Please click here to view more photos 



 Spring 2017

New Grey Systems book available on Springer Website!

A new book that explores the fundamental methods, models and techniques of the practical application of grey data analysiss is now available on the Springer website.    The book, "Grey Data Analysis Methods, Models and Applications" along with further details about the book and its authors can be found here. This book is not to be confused with the book currently being worked on by network members (prev.article).





August 2016 

 Conference image

The 2016 GSUA International Conference on grey systems was held this summer from 8th-11th August at the De Montfort University (DMU) in Leicester, UK.

The conference provided a platform for leading scholars in the field of grey systems research to present their work and discuss, from their diverse perspectives, the comparative differences between grey systems and other uncertainty models. With  grey systems research being mainly developed mainly in China, the conference also helped to facilitate further research and debate on the applications of grey systems in different historical and socio-economic environments.

The delegate and speaker presentations can be located here.




September 2015


The GSIA European Regional Meeting was held on the 22nd to the 24th September in Bucharest, Romania at The Bucharest University of Economic Studies. Regional and international scholars at the forefront of research on the applications of Grey Systems Theory presented and discussed their work during the event. Their presentations can be found below.


June 2015



The first GSIA International Research Network Regional Meeting was held on the 19th-21st of June in Nanjing, China at the Nanjing University of Aeronautics and Astronautics. The breadth and depth of knowledge on the current and expanding research area of Grey Systems theory and applications were demonstrated by a wealth of presentations by delegates from regional and international universities. A summary of all these presentations can be found here


Prof Liu Key note speech

 The Keynote Speech of Prof. Sifeng Liu, at the 2015 GSIA Regional Meeting in Nanjing, China. 



May 2015


The second GSIA International Research Network Regional Meeting will be held on 22nd-24th of September in Bucharest, Romania. Further information on the research areas and associated deadlines can be found in the call for papers.



March 2015


The first GSIA International Research Network Regional Meeting has been organised for the 19th-21st of June in Nanjing, China. The meeting shall focus on current research and rapidly expanding Grey Systems theory and applications and complex equipment developement. Further information on the research areas and associated deadlines can be found in the call for papers.


February 2015


On the 1st February 2015 The Leverhulme Trust GSIA International Research Network was launched; combining the research capacity of six of the worlds leading universities in the field of grey systems. This project enables the collaboration of esteemed academics representing each institution and is led by Prof Yingjie Yang of De Montfort University, Leicester, UK. The aim of the network is to advance grey systems research and its applications by promoting interdisciplinary discussion between research from different disciplines and countries.

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