flickr tags network
DESCRIPTION
Flickr Tags Network. Mustafa Kilavuz. Tags. A tag is a keyword Search , spam detection, reputation systems, personal organization and metadata. Usage. Social bookmarking Personal bookmarks Allows users to store and retrieve resources Social tagging systems - PowerPoint PPT PresentationTRANSCRIPT
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Flickr Tags NetworkMustafa Kilavuz
![Page 2: Flickr Tags Network](https://reader035.vdocuments.net/reader035/viewer/2022062810/56815ccb550346895dcad87f/html5/thumbnails/2.jpg)
TagsA tag is a keywordSearch, spam detection,
reputation systems, personal organization and metadata
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UsageSocial bookmarking
◦Personal bookmarks◦Allows users to store and retrieve
resourcesSocial tagging systems
◦Shared tags for particular resources◦Each tag is a link to additional
resources tagged the same way by other users
◦Folksonomy: popular tags
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Youtube
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Delicious
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Last.fm
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Last.fm
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Last.fm
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Flickr
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Vocabulary ProblemDifferent users use different terms to describe
the same thingsPolysemy: A single word has multiple meaningsSynonymy: Different words have the same
meaningAbstraction: Tagging a resource in different levels
of abstraction◦ Animal, cat, Persian cat, Felis silvestris catus longhair
PersianDifferent languagesMissing context: Tags that could not be related
with the images by others◦ Holiday, me, friends, a person’s name
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Tag Usage on FlickrThe tag usage is not mandatory
in Flickr.User can tag their friends’
photos. But within 58 million tag observed, the overwhelming majority are owner tags.
Most people has very few distinct tags while a small group has extremely large sets of tags.
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Tag vocabulary size across the set of users
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Growth of distinct tags10 users are randomly chosen
◦Frequent uploaders ( > 100 photos)◦Frequent taggers ( > 100 tags)
The number of distinct tags are observed as the number of photos uploaded increases.
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Growth of distinct tags
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Vocabulary Formation
Vocabulary overlap distribution for random users and contacts
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Tag frequency distribution in Flickr
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Number of tags per photo in Flickr
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Information from a Flickr PhotoUseful
◦User◦Upload date◦Tags◦View count◦Groups
Other◦Title◦Description◦Comments
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Data Extraction Methodhttp://www.flickr.com/services/api
/Iterate on each user
◦Iterate on each public photo of the user
◦Get all contacts and group information
Iterate on each group◦Iterate on each photo in the group
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Tripartite Network Modelpageperson
tag
• Can project onto bipartite graphs• person – tag• tag – page• person – page
• Can project onto one-mode graphs• person – person• tag – tag• person - page
From Lada Adamic
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A bipartite model
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Tag Network Model
BuildingSky
Light
Blue
CloudWindow
3410
4
54 28
23
80
12
2
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aTagsLife
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GeotagsAdditional place informationSpatial distribution, places
◦San Francisco, museumTemporal distribution, events
◦Burst of tagging in a small time interval
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ClustersStrongly connected tagsFlickr uses for years for searching
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What we can do..Investigate clusters to get
information about◦Events and their relations◦Interests and their relations◦Etc.
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Tag Categories
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Tag Categories
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QUESTIONS?