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SUMMARY:Mapping the World's Photos
DTSTART:20090615T161500
DTSTAMP:20260406T194637Z
UID:42017b17456bb9e692bcb6d23ffa79fa2d7d38a763af45b03fb64999
CATEGORIES:Conferences - Seminars
DESCRIPTION:Prof. Daniel Huttenlocher\, Cornell University\, USA\nWe inves
 tigate how to organize a large collection of geotagged photos\, working wi
 th a dataset of about 35 million images collected from Flickr. Our approac
 h combines content analysis based on text tags and image data with structu
 ral analysis based on geospatial data. We use the spatial distribution of 
 where people take photos to define a relational structure between the phot
 os that are taken at popular places. We then study the interplay between t
 his structure and the content\, using classification methods for predictin
 g such locations from visual\, textual and temporal features of the photos
 . We find that combined visual and temporal features improve the ability t
 o estimate the location of a photo\, compared to using just textual or vis
 ual features alone. We illustrate using these techniques to structure a la
 rge collection of geotagged photos\, while also revealing various interest
 ing properties about popular cities and landmarks at a global scale.\n\nJo
 int work with David Crandall\, Lars Backstrom and Jon Kleinberg\n\nD. Hutt
 enlocher's homepage
LOCATION:INM202
STATUS:CONFIRMED
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