Post on 22-May-2020
SOME THOUGHTS ON BIG DATA IN GISCIENCE...
BIG DATA GISCIENCE?
BIG DATA GISCIENCE? KRZYSZTOF JANOWICZ, UCSB (FEB. 03 2012)
SOME THOUGHTS ON BIG DATA IN GISCIENCE...
IS BIG DATA MORE THAN JUST ANOTHER BUZZWORD?
BIG DATA GISCIENCE? KRZYSZTOF JANOWICZ, UCSB (FEB. 03 2012)
SOME THOUGHTS ON BIG DATA IN GISCIENCE...
DO THESE BUZZWORDS SHARE A COMMON CORE?
Digital Earth as a multi-thematic and multi-perspectiveknowledge archivee-Science as an infrastructure to share data and modelsand to enable collaborationSmart Dust as self-organizing, ubiquitous sensor networksLinked Data as a global graph connecting raw data to makethem accessible and re-usable
Is Big Data a paradigm shift towards data-intensive,collaborative science in which models and data are shared?
BIG DATA GISCIENCE? KRZYSZTOF JANOWICZ, UCSB (FEB. 03 2012)
SOME THOUGHTS ON BIG DATA IN GISCIENCE...
THE THREE V’S OF BIG DATA
Volume: The size of the involved data, their multi-dimensionalnature, as well as their inter-linkage which creates a global graph.E.g., Volunteered Geographic Information, Location-based SocialNetworks, sensor networks, high resolution remote sensing data,complex transportation simulations. V
Variety: The number of sources and type of data is increasing aswell. Combining social media with authoritative sources andintegrating different formats such as video, audio, photo, and textallows a more holistic analysis but raises new issues in dataintegration. V
Velocity: Big Data is not only about large amounts of data but alsothe speed at which data is created and updated. A rapidlyincreasing number of data sources deliver near real-time datawhich poses new challenges for stream reasoning and rulesystems, which data do we keep? V
BIG DATA GISCIENCE? KRZYSZTOF JANOWICZ, UCSB (FEB. 03 2012)
SOME THOUGHTS ON BIG DATA IN GISCIENCE...
KNOWLEDGE AS A NETWORK...
... The global Linked Data graph may be a promising knowledgeinfrastructure for Big Data.
BIG DATA GISCIENCE? KRZYSZTOF JANOWICZ, UCSB (FEB. 03 2012)
SOME THOUGHTS ON BIG DATA IN GISCIENCE...
NSF EARTH CUBE
’NSF seeks [...] approaches to create integrated data managementinfrastructures across the Geosciences. [...] recognize the multifacetedchallenges of modern, data-intensive science and education and envisionan environment where low adoption thresholds and new capabilities acttogether to greatly increase the productivity and capability of researchers andeducators [...].’ (http://www.nsf.gov/geo/earthcube/)
BIG DATA GISCIENCE? KRZYSZTOF JANOWICZ, UCSB (FEB. 03 2012)
SOME THOUGHTS ON BIG DATA IN GISCIENCE...
IARPA FINDER CHALLENGE
Estimate the location of pictures and videos without any explicitgeolocation information.
BIG DATA GISCIENCE? KRZYSZTOF JANOWICZ, UCSB (FEB. 03 2012)
SOME THOUGHTS ON BIG DATA IN GISCIENCE...
IM2GPS
’Estimating geographic information from a single image’’Purely data-driven scene matching’ (low-level features)
Big Data CheckVolume: 6 million (out of 6 billion) of Flickr photosVVelocity: in theory, new pictures every secondVVariety: single type of dataV
BIG DATA GISCIENCE? KRZYSZTOF JANOWICZ, UCSB (FEB. 03 2012)
SOME THOUGHTS ON BIG DATA IN GISCIENCE...
DIALOC: NEW DATA SOURCES FOR OLD QUESTIONS
’market food street narrow dense populated asia economy air conditioningsmog fog humid warm building construction skyscrapers skyline shippingexport channel harbor transportation tram city advertisement’
Variety: Plain text, not image features as data source V
BIG DATA GISCIENCE? KRZYSZTOF JANOWICZ, UCSB (FEB. 03 2012)
SOME THOUGHTS ON BIG DATA IN GISCIENCE...
DIALOC: NEW DATA SOURCES FOR OLD QUESTIONS
0
0.1
0.2
0.3
0.4
0.5Cape NormanSanta Barbara
City
Lake
Valley
Mountain
HistoricPlace
Town
WorldHeritageSite
ProtectedArea
Village
Cave
Island
Museum
Stream
Park
Theatre
Lighthouse
Stadium
Hotel
Restaurant
Airport
Hospital
Volume: > 500,000 Wikipedia articles & travel blog entries. VVelocity: in theory, new travel blog entries every minute VIM2GPS and DiaLoc each exclude 99.9% of the land-surface ofthe Earth, what if we combine them.
BIG DATA GISCIENCE? KRZYSZTOF JANOWICZ, UCSB (FEB. 03 2012)
SOME THOUGHTS ON BIG DATA IN GISCIENCE...
FUTURICT – A BIG SCIENCE PROJECT
EU flagship proposal> 300 teams10 years1 billion Euro
Knowledge accelerator
BIG DATA GISCIENCE? KRZYSZTOF JANOWICZ, UCSB (FEB. 03 2012)
SOME THOUGHTS ON BIG DATA IN GISCIENCE...
FUTURICT – INVOLVED SCIENTIFIC DOMAINS
GEOGRAPHY?BIG DATA GISCIENCE? KRZYSZTOF JANOWICZ, UCSB (FEB. 03 2012)
SOME THOUGHTS ON BIG DATA IN GISCIENCE...
GEOGRAPHY IS ABOUT INTERDISCIPLINARITY!
BIG DATA GISCIENCE? KRZYSZTOF JANOWICZ, UCSB (FEB. 03 2012)
SOME THOUGHTS ON BIG DATA IN GISCIENCE...
SO MAYBE THEY ARE JUST ADDRESSING OTHER PROBLEMS?
BIG DATA GISCIENCE? KRZYSZTOF JANOWICZ, UCSB (FEB. 03 2012)
SOME THOUGHTS ON BIG DATA IN GISCIENCE...
SO MAYBE THEY ARE JUST ADDRESSING OTHER PROBLEMS?
... which role do we play?BIG DATA GISCIENCE? KRZYSZTOF JANOWICZ, UCSB (FEB. 03 2012)
SOME THOUGHTS ON BIG DATA IN GISCIENCE...
THE PANELISTS
Mark Gahegan, University of Auckland, New ZealandProfessor at the School of Environment
Mark Schildhauer, University of California, Santa Barbara, USADirector of Computing at National Center for Ecological Analysis and Synthesis
Isabel Cruz, University of Illinois, USAProfessor of Computer Science
Werner Kuhn, University of Muenster, GermanyProfessor for Geographic Information Science
Pascal Hitzler, Wright State University, USAAssistant Professor of Computer Science
Mike Goodchild, University of California, Santa Barbara, USAJack and Laura Dangermond Professor of Geography
Big Data is a big topic, this panel will focus on the variety component.
BIG DATA GISCIENCE? KRZYSZTOF JANOWICZ, UCSB (FEB. 03 2012)