Flickr

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Information about Flickr
Education

Published on March 16, 2008

Author: Natalia

Source: authorstream.com

Flickr:  Flickr the framework of Flickr Observe them:  Observe them How many photos does each user offer? How many tags does each photo have? The tag hot-list How many comments does each photo have? The ratio of the geo-tagged photos. dataset:  dataset European Travel on Flickr http://www.flickr.com/groups/europe05/ 1154 members 500- providers About 15000(pretended) photos Actual 4500 photos How many photos does each user offer? :  How many photos does each user offer? How many photos does each user offer?:  How many photos does each user offer? How many photos does each user offer?:  How many photos does each user offer? 1 photo : 77 users 2 photos : 85 users 3 photos : 44 users 4 photos : 56 users 5 photos : 29 users 6 photos : 24 users 7 photos : 21 users How many photos does each user offer?:  How many photos does each user offer? Top 10 providers has 20% photos. Top 20 providers has 30% photos. Top 53 providers has 50% photos. 486 providers / 1154 members How many photos does each user offer?:  How many photos does each user offer? Visit the top 10 providers’ albums. See their photos, photosets and groups Top1 (195 photos, England):  Top1 (195 photos, England) http://www.flickr.com/photos/77185053@N00 Photoset: UK, Paris, Crete, Switzerland, USA Group: France image, This is Europe, Top20 France, TRAVEL Photography How many photos does each user offer?:  How many photos does each user offer? Not easy to build a dataset by tracing group members’ albums automatically (by Flickr API) because many of the photos are beside. Some people only upload the photos to associated group and not in their own album. How many photos does each user offer?:  How many photos does each user offer? But we can still expand our dataset from some members’ photos approximately. (manually) Through the groups the members belong to, we can find other suitable groups. How many tags does each photo have?:  How many tags does each photo have? How many tags does each photo have?:  How many tags does each photo have? How many tags does each photo have?:  How many tags does each photo have? 209 (5%) photos without any tag 1tag : 135 photos 2tags : 302 photos 3tags : 270 photos 4tags : 319 photos 5tags : 302 photos 6tags : 392 photos 7tags : 345 photos 8tags : 262 photos 9tags : 265 photos How many tags does each photo have?:  How many tags does each photo have? 62131 photos 5069 (8%) without any tag How many tags does each photo have?:  How many tags does each photo have? Most of the photos have non-zero tags. Not really a power-law distribution, photos < 10 tags are common and few has more than 10 tags. The tag hot-list:  The tag hot-list European travel 446 Europe + 427 europe + 121 europa + 105 Europa = 1009 549 (1st) travel + 135 Travel = 684 The tag hot-list:  The tag hot-list Country : 334 France + 264 france = 598 275 Italy + 242 italy + 119 italia = 636 202 spain + 187 Spain = 389 The tag hot-list:  The tag hot-list Scene 138 landscape 166 architecture 125 water 114 church 110 sky 101 sea 97 building 87 river Why we tag?:  Why we tag? Why we tag? Self/Organization: Search and Retrieval :  Why we tag? Self/Organization: Search and Retrieval traditional annotation motivations in personal photo collections tag specifically to later retrieve their pictures for sharing tag for personal organization purposes Why we tag? Self/Communication: Memory and Context :  Why we tag? Self/Communication: Memory and Context aid future recall of the situation it depicts adding context is the traditional motivation for annotating printed photographs the memory function of tags was still not a popular motivation. Why we tag? Social/Organization: Public Search and Photo Pools :  Why we tag? Social/Organization: Public Search and Photo Pools Making their photos findable by others Enrich and share experiences Be discovered by anyone who may be interested in the photo Why we tag? Social/Communication: Context and Signaling :  Why we tag? Social/Communication: Context and Signaling communicate contextual information to others about the image added these contextual tags for the benefit of known others, such as friends or family For privacy, friends or family would understand what the tags meant Why we tag? Summary for motivations:  Why we tag? Summary for motivations tags can play several roles Why we tag? conclusion:  Why we tag? conclusion organization for oneself is a more common motivation than communication for oneself over half of our participants used tags for personal search and retrieval; very few were motivated to tag for personal memory Why we tag? Conclusion (cont.):  Why we tag? Conclusion (cont.) communication with friends and family is a more common motivation than organization for friends and family organization for the general public is a much more common motivation than communication. How many comments does each photo have?:  How many comments does each photo have? How many comments does each photo have?:  How many comments does each photo have? How many comments does each photo have?:  How many comments does each photo have? 1711 (38%) photos have no comments Unlike tags, it’s a power-law distribution The ratio of the geo-tagged photos:  The ratio of the geo-tagged photos Photo counts = 4497 With geo counts = 1182 (26%) Without geo counts = 3315 Future work:  Future work Work with Winston's "Video Search Reranking" to think about how to design a query Reference:  Reference Why We Tag: Motivations for Annotation in Mobile and Online Media (2007 ACM) http://www.flickr.com/services/api/

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