University of Southern California Background Photo by NASA, date unknown Texas A&M University Big GeoData Problems – High Volume Transactions and National.

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Presentation transcript:

University of Southern California Background Photo by NASA, date unknown Texas A&M University Big GeoData Problems – High Volume Transactions and National Datasets Presented to: TAMU Big Data Workshop College Station, TX Dr. Daniel W. Goldberg Department of Geography, Department of Computer Science & Engineering Texas A&M University

Texas A&M University 2 Simple Problem - Geocoding

Texas A&M University 3 Who Cares Address Data Geocode Address Data Calculate Exposure Locational Spatially Referenced Spatial Analysis Values Conclusions Hot Spots Incomplete / incorrect Inaccurate location Incorrect assignment Invalid association Misguided actions Error Propagation Relative Magnitude

Texas A&M University 4 Challenges Geographic processes are complex, and there are lots of them 500 m radius 0.1 ppm 4.5 ppm 9.0 ppm 13.5 ppm 18.0 ppm 27.0 ppm 45.0 ppm 1000 m radius a) b) c) Discretizing continuous phenomena

Texas A&M University 5 Challenges Geography is everywhere, and there is lots of it 390 Million US Addresses Updated Quarterly

Texas A&M University 6 Challenges Geographic processing is complex, and it is done all the time Computing continuous phenomena

Texas A&M University 7 Challenges 1M transactions per day

Texas A&M University 8 Challenges High variety of access patterns, and all need to be fast Reference Date Transaction Logs Account Balance READWRITER/W

Texas A&M University 9 Challenges Infrastructure is complex, and there is lots of it 75+ VMs

Texas A&M University 10 Solutions Lots of interesting challenges Ripe for research opportunities Let’s get started

Texas A&M University THANKS FOR LISTENING Questions? Contact Information Dr. Daniel Goldberg Departments of Geography and Computer Science & Engineering Texas A&M University