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NSF Industry/University Cooperative Research Center
High Performance Database Research CenterNaphtali D. Rishe, Director, rishe@fiu.eduHPDRC.FIU.edu TerraFly.com
HPDRC Expertise:HPDRC Expertise:
• Data visualization
• Spatial databases
• Internet-distributed heterogeneous databases
• Database design methodologies
• Information analysis
• GIS
• Location Data
• Health Informatics
Director: Dr. Naphtali David Rishe Director: Dr. Naphtali David Rishe
The Inaugural Outstanding University Professor of FIU
Awards: $40M, Patents: 4, Books: 4, Papers: 250
HPDRC.FIU.edu TerraFly.com
GIS Solutions Based On Geo-Spatial Research GIS Solutions Based On Geo-Spatial Research TechnologyTechnology• Next generation GIS: Internet geo-visualization & spatial
cloud-computing platform and service
• Advanced geo-spatial computing engine
• Open architecture, API provided
• 40 TB database of aerial imagery and spatial data
• Rich datasets in a user-friendly environment
• Professionally customizable to domain requirements
• NASA, NSF, IBM and USGS funded technology
HPDRC.FIU.edu TerraFly.com
Web-BasedWeb-BasedWeb-BasedWeb-Based
Open Architecture APIOpen Architecture APIOpen Architecture APIOpen Architecture API
Geo-Spatial Mapping SolutionGeo-Spatial Mapping SolutionGeo-Spatial Mapping SolutionGeo-Spatial Mapping Solution
HPDRC.FIU.edu TerraFly.com
Address LocatorAddress LocatorAddress LocatorAddress Locator
Vicinity InformationVicinity InformationVicinity InformationVicinity Information
Demographic DataDemographic DataDemographic DataDemographic Data
Nationwide Layers: 2000 US Census, Businesses, Schools, Travel, Features (airports, heliports, public buildings, churches, hospitals, libraries, post offices, towers, tunnels, water, etc.), Property Lines and much more
Nationwide Layers: 2000 US Census, Businesses, Schools, Travel, Features (airports, heliports, public buildings, churches, hospitals, libraries, post offices, towers, tunnels, water, etc.), Property Lines and much more
HPDRC.FIU.edu TerraFly.com
HPDRC.FIU.edu TerraFly.com
Your System Your System Your DataYour Data
TerraFly TerraFly systemsystem
TerraFly TerraFly IntegrationIntegration
Solution Solution
HPDRC.FIU.edu TerraFly.com
Query Date Range
Time Series
Animation Player
Census Block
Groups are Selectable
Layer Control
HPDRC.FIU.edu TerraFly.com
MapReduce use casesMapReduce use cases● Spatial data indexing [SSDBM’09]● Geospatial query support [SSDBM’10]● Parallel spatial data processing
[GrC’10]● Parallel set-similarity spatial joins● Real Estate data analytics
HPDRC.FIU.edu TerraFly.com
● Objective: Provide computational analytics for estimating how an event influences property values
● Dataset: Miami-Dade county records (~ 20M)● Community Boundaries: U.S. Census Blocks and Tracts
(polygons)● Property transaction geo-database: Join of property
public records (Deeds, Tax Roll)
HPDRC.FIU.edu TerraFly.com
Parcel
Date Value Area Type Location
...
1001 03-10-2005 100K 840 Condo 1,2
1002 03-15-2005 130K 2000 Single-Family 2,3
1003 12-22-2005 80K 1085 Single-Family 2,2
… … … … … …
● MethodMethod• Virtual Community (VC): a set of homes with similar
characteristics within a geographical area• Consider unit price per VC, e.g. median of $/sq-foot• Compute VC’s unit price rate change to compare communities• Hadoop MapReduce: Temporal, in parallel, self-join of the
dataset to compute property value rate change
Parcel Date Value … Loc.
1001 03-10-2005 100K 1,2
1002 03-15-2005 130K 2,3
1003 05-22-2005 80K 3,2
1004 06-20-2005 80K 4,2
1005 07-10-2006 100K 5,2
1006 03-15-2005 130K 6,3
1007 12-22-2005 80K 7,2
1008 12-22-2005 80K 8,2
… … … …
9000 03-15-2005 130K 9,3
9001 12-22-2005 80K 9,2
9002 01-22-2006 80K 2,2
9003 02-10-2006 100K 1,2
9004 03-15-2005 130K 2,3
9005 12-22-2005 80K 2,2
9006 12-22-2005 80K 9,2
Reduce
Map
Map
(Partitions records by: Community, Type, Date)
(Computes community values and change
rate)
…
Reduce
…
Community Rate Value …
300 -10% 100
301 -60% 80
302 15% 55
303 2% 60
… … …
Input: dataset, tstart, tend
Output: Community value change rate
Hurricane Andrew, August 1992, Q2’92 vs. Q4’92
Drop
Raise
No change
HPDRC.FIU.edu TerraFly.com
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