Core Concepts of Geoinformatics: introdcution Gilberto Camara National Institute for Space Research, Brazil Institut für Geoinformatik, Univ Münster.

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Presentation transcript:

Core Concepts of Geoinformatics: introdcution Gilberto Camara National Institute for Space Research, Brazil Institut für Geoinformatik, Univ Münster

The motivation for “big data” source: Louis Perrochon (Google)

Is the scientific method obsolete?

social network sensors everywhere mobile devices ubiquitous imagery Mobile devices, crowdsourcing, massive Earth observation sets: new technologies, new challenges

Data-intensive Geoinformatics = principles and applications of spatial information science for handling large and complex data sets

Geoinformatics enables crucial links between nature and society Nature: Physical equations Describe processes Society: Decisions on how to Use Earth´s resources

Scientists and Engineers Photo 51(Franklin, 1952) Scientists build in order to study Engineers study in order to build

Stuart Feldman, VP Engineering, Google, Unicamp 2011

The rôle and duties of a software engineer Fred Brooks, “No Silver Bullet: Essence and Accidents of Software Engineering”. IEEE Computer, 1987 “The essence of a software entity is a construct of interlocking concepts: data sets, relationships among data items, algorithms, and invocations of functions. The hard part of building software is the specification, design, and testing of this conceptual construct, not the labor of representing it and testing the fidelity of the representation. Building software will always be hard.”

Challenges for GI software architects Classical view of software development Concepts + Types + Algorithms + Data Structures + Data Sources + Custom programs = Systems for solving real-life problems GI Engineering needs

Core concepts of spatial information (Kuhn, IJGIS, 2012) location neighborhood network fieldobject event

Geometry Cellular Space Social Network Object Core concepts as abstract data types Coverage Time Series Trajectory Event Agent

From Analogue spaces to digital spaces

Hic sunt leones et dragones

fonte: Carlos Nobre Hic sunt leones et dragones

Digital space: Images

Digital space: Flows in networks

1991 iex Digital space: Social exclusion in São Paulo 2000

Digital space: Crime mapping in Porto Alegre

Homicide risk in São Paulo – 2003

Digital space: Deforestation

Ontologies of digital space

What Geoinformatics is about Computational representations of geographical space