Springer, 2014. — 412.Research in the field of automated generalisation has faced new challenges in recent years as a result of technological developments in web-based processing, new visualisation paradigms and access to very large volumes of multi-source data generated by sensors and humans. In these contexts, map generalisation needs to underpin ‘on-demand mapping’, a form of mapping that responds to individual user requirements in the thematic selection and visualisation of geographic information. It is this new impetus that drives the research of the ICA Commission on Generalisation and Multiple Representation (for example through its annual workshops, biannual tutorials and publications in international journals). This book has a coherent structure, each chapter focusing on core concepts and tasks in the map generalisation towards on-demand mapping. Each chapter presents a state-of-the-art review, together with case studies that illustrate the application of pertinent generalisation methodologies. The book addresses issues from data gathering to multi scaled outputs. Thus there are chapters devoted to defining user requirements in handling specifications, and in the application and evaluation of map generalisation algorithms. It explores the application of generalisation methodologies in the context of growing volumes of data and the increasing popularity of user generated content.Map Generalisation: Fundamental to the Modelling and Understanding of Geographic Space Map Specifications and User Requirements Modelling Geographic Relationships in Automated Environments Data Structures for Continuous Generalisation: tGAP and SSC Integrating and Generalising Volunteered Geographic Information Generalisation Operators Process Modelling, Web Services and Geoprocessing Terrain Generalisation Evaluation in Generalisation Generalisation in the Context of Schematised Maps Generalisation in Practice Within National Mapping Agencies Conclusion: Major Achievements and Research Challenges in Generalisation
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