View
1
Download
0
Category
Preview:
Citation preview
Lorraine Barry School of Natural and Built Environment, Queen’s University Belfast
@lorraine__barry
Presentation at BelFOSS 27th January 2017
FOSS4G Free and Open Source for Geospatial
Lorraine Barry BelFOSS presentation 2017 @lorraine__barry
Lorraine Barry BelFOSS presentation 2017 @lorraine__barry
Geography is Everywhere: The Importance of Geospatial
Spatial Footprints
54.597528° -5.929871°
Latitude Longitude
Lorraine Barry BelFOSS presentation 2017 @lorraine__barry
Big Social and Economic Data Analytics
Location, location, location
Lorraine Barry BelFOSS presentation 2017 @lorraine__barry
Big Spatial Data Big Spatial Data
Volume, Variety, Velocity
Advertising Insurance
Lorraine Barry BelFOSS presentation 2017 @lorraine__barry
Big Spatial Data Big Earth Data Analytics
New Delhi India 1991 2016
Source: NASA
Environmental and Humanitarian
Movements and Flows
Lorraine Barry BelFOSS presentation 2017 @lorraine__barry
Big Spatial Data
NATS is the UK's leading provider of air traffic control services. Each year it handles 2.4 million flights and 250 million passengers in UK airspace.
Lorraine Barry BelFOSS presentation 2017 @lorraine__barry
Volume – mobile apps, cars, GPS, UAVs, ships, airplanes, IoT devices
Aircraft transmits via Automatic Dependent Surveillance – Broadcast a track every second, 87,000 flights per day in the US, ~ 285 billion points per year
Close to 1 billion tweets per day, many are geolocated – plus facebook, instagram, Google Maps, Uber.......
http://www.ccri.com/
= huge streams of spatial data Big Spatial Data Requires Big Data Methods for Handling, Processing &
Analysis
Big Spatial Data
Lorraine Barry BelFOSS presentation 2017 @lorraine__barry
Big Data Analytics “Big data requires an entirely new set of tools for integration and synthesis” By Michael F. Goodchild, Emeritus Professor of Geography, University of California, Santa Barbara
Volume Variety Velocity
IT advances I of Things
Global sources And disciplines
Connectivity and Real Time
FOSS4G Development
Lorraine Barry BelFOSS presentation 2017 @lorraine__barry
FOSS4G Open Geo Stack
Desktop GIS SDMS Web Map Servers
Development Frameworks and Geospatial Libraries
Open Source GIS Software
Lorraine Barry BelFOSS presentation 2017 @lorraine__barry
Growth of @qgis vs ArcMap from Google Trends. @foss4g overtook proprietary code ~2013! @robinlovelace 13 Apr 2015
Lorraine Barry BelFOSS presentation 2017 @lorraine__barry
In research undertaken by Manchester Metropolitan University and the University of Salford, more than half (53%) of local authorities that responded to the survey use Open Source GIS Software. http://www.geoconnexion.com/uploads/publication_pdfs/uk-v15i3-046-Local-Governement.pdf
In research undertaken by Manchester Metropolitan University and the University of Salford, more than half (53%) of local authorities that responded to the survey use Open Source GIS Software. http://www.geoconnexion.com/uploads/publication_pdfs/uk-v15i3-046-Local-Governement.pdf
Open Source GIS Software
FOSS4G Bonn
Lorraine Barry BelFOSS presentation 2017 @lorraine__barry
FOSS4G Award
Lorraine Barry BelFOSS presentation 2017 @lorraine__barry
Lorraine Barry BelFOSS presentation 2017 @lorraine__barry
PySAL Python Spatial Analysis Library
•Clustering •ESDA Exploratory Spatial Data Analysis •Spatial Dynamics •Spatial Econometrics •Weights •Computational geometry
Python based software tools for spatial data analysis. Python is an object oriented scripting language that is gaining rapid adoption in the computational sciences. Since 2010, PySAL has been downloaded over 100,000 times
© Copyright 2014-, PySAL Developers; 2009-13 Sergio Rey
Lorraine Barry BelFOSS presentation 2017 @lorraine__barry
Geographical Data Science of Flows and FOSS4G
Data Driven Models
Spatial Interaction Modelling
Regionalization
Geovisualization
Lorraine Barry BelFOSS presentation 2017 @lorraine__barry
Geographical Data Science of Flows and FOSS4G
•Import libraries pysal, numpy, csv, pandas •Read matrix of flows •While test failed (range of internal flows per created region) then: •Group areas into regions using Maxp algorithm (PySAL) •Merge created output regions to matrix
•Group the pandas dataframe by region •For list of areas within each region sum flows (rows and columns) •Output flow totals per region •Calculate internal flows •Test solution to check if the regions internal flows are within range
Lorraine Barry BelFOSS presentation 2017 @lorraine__barry
Geographical Data Science of Flows and FOSS4G
Spatial Interaction Modelling
SIM - a technique to evaluate the patterns between volume of flows and the underlying socio-economic tendencies of
the origin and destination zones. (Lloyd et al, 2011)
jointly funded by the Department of Finance and the Department for the Economy
Lorraine Barry BelFOSS presentation 2017 @lorraine__barry
OpenDataNI Challenge – Using Open Data for Education
Environmental awareness outside of the classroom
Lorraine Barry BelFOSS presentation 2017 @lorraine__barry
Open Geo Stack - Leaflet Open Geo Stack - Leaflet
https://ecocommni.github.io/BootstrapTest/schools.html
Lorraine Barry BelFOSS presentation 2017 @lorraine__barry
NI Science Festival Open Data Mapping Challenge
The Open Data Mapping Challenge Wednesday 22 February, 6:00 pm - 7:30 pm
Free. Booking recommended http://www.nisciencefestival.com/
!
Association of Geographical Information NI
Lorraine Barry BelFOSS presentation 2017 @lorraine__barry
AGI NI
LinkedIN : AGI Northern Ireland Twitter : @NI_AGI
Provides focus for the GI community and users Represents the GI community to policy makers Encourages best practice and innovation Promotes the value and benefit of GI Keeps an eye on emerging markets Promotes training, education and CPD.
Free student membership
Lorraine Barry
Geographical Information Science School of Natural and Built Environment, Queen’s University Belfast
@lorraine__barry
l.barry@qub.ac.uk
Lorraine Barry BelFOSS presentation 2017 @lorraine__barry
Recommended