CSAM Seminar: Topic models and co-occurrence maps: from automated text analysis to hybrid interactive exploration
|Speaker:||Mike Yearworth, Professor of Management Science at the University of Exeter|
|Date:||Thursday 10 May 2018|
|Time:||11:00 - 12:00|
I reflect on recent experience of mapping a research field geometrically and present two approaches, topic modelling (using the latent Dirichlet allocation (LDA)) and co-occurrence mapping, that were used in the process. In exploring the value of the tools used to implement these approaches I adopt a position of hybridity, arguing that they are not enough by themselves to meaningfully automate text analysis but they do enable a form of augmented interactive exploration of data. Some results from a prototype classifier are presented to stimulate discussion around questions of hybridity/augmentation as ‘cognitive collaboration’.
Professor Mike Yearworth is Professor of Management Science at the University of Exeter Business School. His research is focussed on the way in which managers in engineering organisations make decisions when faced with messy problem contexts characterised by contested stakeholder viewpoints, difficulties agreeing objectives, lack of reliable data and uncertain outcomes from interventions. Mostly this work is methodological and concerned with the development and use of Problem Structuring Methods (PSMs) to support decision making. Mike has worked with a wide range of organisations in developing and applying systems modelling and problem structuring approaches to strategic decision making including Guardian News and Media (GNM), Defra, Rolls-Royce Defence Aerospace, Thales UK, Dstl, Toshiba Telecoms Research Laboratory, Frazer Nash Consulting and Bristol City Council. His work is published in the European Journal of Operational Research, Energy Research & Social Science, Journal of the Operational Research Society, Energy Policy, Journal of Industrial Ecology, Systems Research and Behavioral Science and Systems Engineering. Mike joined the Business School in 2016 and was previously Professor of Engineering Systems at the University of Bristol where he worked on the development of problem structuring methods to support systems practice in engineering organisations. This built on his previous work whilst Senior Research Manager at Hewlett-Packard’s European Research Laboratory (HP Labs) where he managed a number of projects researching the development and application of system modelling techniques to understanding the performance of very large complex managed services with focus areas in data centre operations, information security and automation.