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Author: Peter van Oosterom
Publisher:
ISBN:
Category : Computers
Languages : en
Pages : 224
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Book Description
This work is the first to describe techniques for the storage and manipulation of geographic data at multiple scales and in an integrated manner, thus avoiding the redundancies of other techniques. The book opens with a general introduction to Geographic Information Systems. It then goes on to give an overview of the known spatial access methods and presents several new structures: multi-object BSP-tree, KD2B-tree, sphere-tree, BLG-tree, reactive BSP-tree, and reactive-tree. The reactive BSP-tree and reactive-tree are geometric structures which take multiple levels of detail into account. They are reactive data structures which form the basis of a seamless, scaleless, geographic database. The work goes on to describe two advanced GIS architecture types: the geographic relational extension and the object-oriented (OO) approach. Actual implementations are presented as well as theoretical discussion of the systems. GEO++ is based on the open research DBMS Postgres and realizes the geographic relational extension. In the OO programming language, Procol, persistent objects are introduced in order to combine the powerful OO modelling with the database functionality required for GISs. An up-to-date reference for a rapidly developing field, the book will benefit all researchers and practitioners using or developing geographic information systems.
Author: Peter van Oosterom
Publisher:
ISBN:
Category : Computers
Languages : en
Pages : 224
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Book Description
This work is the first to describe techniques for the storage and manipulation of geographic data at multiple scales and in an integrated manner, thus avoiding the redundancies of other techniques. The book opens with a general introduction to Geographic Information Systems. It then goes on to give an overview of the known spatial access methods and presents several new structures: multi-object BSP-tree, KD2B-tree, sphere-tree, BLG-tree, reactive BSP-tree, and reactive-tree. The reactive BSP-tree and reactive-tree are geometric structures which take multiple levels of detail into account. They are reactive data structures which form the basis of a seamless, scaleless, geographic database. The work goes on to describe two advanced GIS architecture types: the geographic relational extension and the object-oriented (OO) approach. Actual implementations are presented as well as theoretical discussion of the systems. GEO++ is based on the open research DBMS Postgres and realizes the geographic relational extension. In the OO programming language, Procol, persistent objects are introduced in order to combine the powerful OO modelling with the database functionality required for GISs. An up-to-date reference for a rapidly developing field, the book will benefit all researchers and practitioners using or developing geographic information systems.
Author: Burkhard Monien
Publisher: Springer Science & Business Media
ISBN: 9783540554882
Category : Computers
Languages : en
Pages : 406
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Book Description
Myocarditis and idiopathic dilated cardiomyopathy are being increasingly recognized as important causes of heart disease and heart failure. Immunological mechanisms have long been suspected as playing a role in thesediseases but direct evidence has been lacking. Recently, animal models have be- come available, in which myocarditis can be induced either by infection with cardiotropic viruses or by autoimmuniza- tion with heart-specific antigens. This book presents and analyzes the latest information obtained from experimental models, relating it to the practical problems of diagnosis and treatment of myocarditis.
Author: Dirk Burghardt
Publisher: Springer
ISBN: 3319002031
Category : Science
Languages : en
Pages : 412
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Book Description
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.
Author: J-P Lagrange
Publisher: CRC Press
ISBN: 1000162702
Category : Technology & Engineering
Languages : en
Pages : 284
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Book Description
This text is the inaugural book in Taylor and Francis's GISDATA series, and is derived from the specialist workshop convened under the auspices of the European Science Foundation's GISDATA Scientific Programme. Generalisation is an integrating tool for the analysis and presentation of spatial data. Effective spatial data analysis requires multiple views of the world at various scales with different thematic layers of representation. Generalisation is a key mechanism in this process, as it filters out information which is required for particular scales or layers; hence it is critical to implement full and comprehensive generalisation capabilities in a GIS, something with which few current GIS are equipped.; This book overviews the core and as-yet unresolved issues surrounding the achievement of this goal, and presents various alternatives - both speculative views and practical examples - in the areas of automated generalisation, vis-a-vis problems such as object simplification and placement. At the same time it distinguishes between modelling with generalisation and graphical representation, and adopts a model-building perspective. It also describes artificial intelligence techniques for implementing automated generalised routines, and addresses issues of data quality and production.; The text is organized into six parts: an introduction; generic issue; object-orientated methods and knowledge-based modelling; knowledge acquisition and representation; data quality; and operation and implementation.
Author: Chris B. Jones
Publisher: Routledge
ISBN: 1317900251
Category : Science
Languages : en
Pages : 630
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Book Description
A concise text presenting the fundamental concepts in Geographical Information Systems (GIS), emphasising an understanding of techniques in management, analysis and graphic display of spatial information. Divided into five parts - the first part reviews the development and application of GIS, followed by a summary of the characteristics and representation of geographical information. It concludes with an overview of the functions provided by typical GIS systems. Part Two introduces co-ordinate systems and map projections, describes methods for digitising map data and gives an overview of remote sensing. Part Three deals with data storage and database management, as well as specialised techniques for accessing spatial data. Spatial modelling and analytical techniques for decision making form the subject of Part Four, while the final part is concerned with graphical representation, emphasising issues of graphics technology, cartographic design and map generalisation.
Author: Prithvish Nag And Smita Sengupta
Publisher: Concept Publishing Company
ISBN: 9788180694356
Category : Geographic information systems
Languages : en
Pages : 548
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Book Description
In Indian context.
Author: Jonathan Raper
Publisher: CRC Press
ISBN: 0203301226
Category : Technology & Engineering
Languages : en
Pages : 336
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Book Description
The way people normally view a GIS is 2-dimensional, a greatly limiting form. However, as developments occur within the field, researchers and practitioners are finding ways to make a GIS 3-dimensional, and in some instances even 4-dimensional. Being able to view a GIS in more than 2 dimensions greatly enhances its usability. This forward-lookin
Author: Ken Arroyo Ohori
Publisher: Lulu.com
ISBN: 1326596381
Category : Technology & Engineering
Languages : en
Pages : 248
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Book Description
Higher-dimensional modelling of geographic information
Author: Bhuiyan Monwar Alam
Publisher: BoD – Books on Demand
ISBN: 9535108247
Category : Science
Languages : en
Pages : 387
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Book Description
The importance of Geographic Information Systems (GIS) can hardly be overemphasized in today’s academic and professional arena. More professionals and academics have been using GIS than ever – urban
Author: Massimo Craglia
Publisher: CRC Press
ISBN: 1000124061
Category : Technology & Engineering
Languages : en
Pages : 630
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Book Description
The contributors to this edited collection demonstrate that geographic information research is truly global in character, cutting across a wide range of disciplines and addressing conceptual, methodological, technical, ethical and political issues alike. Of the six themes, two are broadly concerned with data integration (geographic data infrastructures, GIS diffusion and implementation); two are more technical and conceptual in nature (generalisation, concepts and paradigms), and two reflect to a larger extent the application-driven nature of GIS technology (spatial analysis and multimedia). Each section is introduced by chapters highlighting the key research issues. Further chapters explore these issues in greater depth, and benefit from the international collaboration. Through the comparison of results included in this book, the prospects for advancing the field and addressing the challenges of GIS research are greatly improved.
