The Rise of Big Spatial Data
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Specificatii
This edited volume gathers the proceedings of the Symposium GIS
Ostrava 2016, the Rise of Big Spatial Data, held at the Technical
University of Ostrava, Czech Republic, March 16-18, 2016. Combining
theoretical papers and applications by authors from around the
globe, it summarises the latest research findings in the area of
big spatial data and key problems related to its
utilisation.Welcome to dawn of the big data era: though it's in
sight, it isn't quite here yet. Big spatial data is characterised
by three main features: volume beyond the limit of usual
geo-processing, velocity higher than that available using
conventional processes, and variety, combining more diverse geodata
sources than usual. The popular term denotes a situation in which
one or more of these key properties reaches a point at which
traditional methods for geodata collection, storage, processing,
control, analysis, modelling, validation and visualisation fail to
provide effective solutions. >Entering the era of big spatial
data calls for finding solutions that address all small data issues
that soon create big data troubles. Resilience for big spatial data
means solving the heterogeneity of spatial data sources (in topics,
purpose, completeness, guarantee, licensing, coverage etc.), large
volumes (from gigabytes to terabytes and more), undue complexity of
geo-applications and systems (i.e. combination of standalone
applications with web services, mobile platforms and sensor
networks), neglected automation of geodata preparation (i.e.
harmonisation, fusion), insufficient control of geodata collection
and distribution processes (i.e. scarcity and poor quality of
metadata and metadata systems), limited analytical tool capacity
(i.e. domination of traditional causal-driven analysis), low visual
system performance, inefficient knowledge-discovery techniques (for
transformation of vast amounts of information into tiny and
essential outputs) and much more. These trends are accelerating as
sensors become more ubiquitous around the world.
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