the google empire/web-based mapping and gis online monica stephens [email protected]
TRANSCRIPT
Google’s mission: good or bad?"Google's mission is to organize the world's information and to make it universally accessible and useful... a significant amount of information can be found in mapping the world, by gaining a better understanding of the world in general,"
-Stephen Chau, Product Manager, Google Maps
What is Web-based mapping?• Web-based maps are interactive
maps that often contain high-resolution base maps of imagery or streets, tasks or analytics like drive time calculators or place finders, and other data overlays.
• Users can combine their own contents with web-based maps to make “mashups” (2006)
• Application Programming Interface (API)—gives programmers the tools of Google Maps for individual purposes
Arizona Daily Star Crime Map
For real estate: http://www.youtube.com/watch?v=iN3f8j6APns
Positives and Negatives•Positives
•Real time•Portable•Easy interface•Open source/Free•Accessible hardware & software
•Negatives•Urban vs. Rural •Limited functionality•Accuracy/Reliability•Page Rank & Filtering•Privacy•Black Holes•Digitization problems are amplified by reuse of the same data
Example of real time:http://www.latimes.com/news/local/la-me-la-fire-map-html,0,7464337.htmlstory
Accuracy—Fort Huachuca
Reliability
Page Rank and filtering
Privacy Issues
Example: http://maps.google.com/maps?source=embed&layer=c&cbll=38.722823,-9.129196&cbp=12,21.48,,0,7.47&ie=UTF8&panoid=5-oYpZSfE0-KBQvmF3OUjQ&ll=38.72276,-9.129188&spn=0,359.997589&z=19
US vs. China “Tiananmen” Images
(Zook and Graham, 2007)
What next?• Web-based maps can be integrated with
3-D imagery, photos, text, and building footprints (for selected cities).
• 2007—Google My Maps was introduced allowing users to add maps and tools created by others to create personalized, annotated maps.• Integrate maps, satelite imagery, text, photos
and videos
• Make your own MyMaps: http://www.youtube.com/watch?v=TftFnot5uXw
416A produced Google Maps Dive bars in Tucson
http://maps.google.com/maps/ms?ie=UTF8&hl=en&msa=0&msid=100656711571469504903.00046afd57b044f33d1d2&ll=32.243296,-110.917969&spn=0.139672,0.301781&z=12
Tourism in Globe Arizonahttp://maps.google.com/maps/ms?hl=en&ie=UTF8&msa=0&msid=102558012386598672577.00046b0fdd61d9b21ed64&z=10
Traditional Costumes for Mexican Folk Dancehttp://maps.google.com/maps/ms?hl=en&ei=jjUkSsbuJZvAtwe228G0Bg&ie=UTF8&msa=0&msid=100656163757797756183.00046b105988faac47a3e&ll=24.926295,-105.380859&spn=43.221542,26.367188&z=4
“NeoGeography” vs. GIS• Web-based maps attracted users with
no GIS experience• Great for data editing, data delivery and
display• Will these online mapping services
replace GIS?• Does not have capabilities for data
analysis• Can not perform spatial interpolation• Can not use GIS for modeling• Analysis functionality is limited
• Where is data/information stored?• Cloud-Computing
Applications of IP-mappingThe Virtual “Bible Belt”
relative number of mentions of the word “church” in placemarks uploaded to Google.
Google Flu Trends
Uses aggregated Google search data to estimate flu activity in your state up to two weeks faster than traditional systems
(http://www.floatingsheep.org)
Subway map of web trends