How Flickr Helps us Make Sense of the World

How Flickr Helps us Make Sense of the World: Context and Content in Community-Contributed Media Collections Lyndon Kennedy Mor Naaman* Share Ahern Rahul Nair Tye Rattenbury Yahoo! Research Berkeley Yahoo! Advanced Development Research *me

Community-contributed? ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

Research Challenges ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

Foremost Challenge: ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],“ Social Media Cycle”

In Particular… ,[object Object]

Good news! Patterns That Make Sense: ,[object Object],[object Object],[object Object],[object Object],[object Object]

That Noise…. ,[object Object],[object Object],[object Object],6 kms 5 kms

Experiments byobw We can derive tag semantics using location and time metadata. Also see [Rattenbury et al, SIGIR 2007]

Can We Create Useful Applications? ,[object Object]

Intuition ,[object Object],[object Object]

Make a World Explorer http://tagmaps.research.yahoo.com Also see [Ahern et al., JCDL 2007]

Rolling in Content ,[object Object],[object Object],[object Object],[object Object],[object Object]

Handling scale ,[object Object],[object Object],[object Object],[object Object]

Problem: Better Visual Summaries Locations and Landmarks Raw Data Visual Summary?

The Problem, in Short and more of this… … without explicitly knowing the difference. Find less of this…

Location can help Enough visual similarity for learning?

Visual Features ,[object Object],[object Object],[object Object]

Ranking images: point-wise links Form links between images via matching SIFT points. Rank by degree of connectivity.

Landmark Graph Structure More connected Less connected

Results: Palace of Fine Arts Tags-only Tags+Location Tags+Location+Visual X X X X X X X

Initial Evaluation ,[object Object],[object Object],[object Object],[object Object]

Performance Average +45% from visual +30% from location

Evaluation Issues ,[object Object]

Conclusions ,[object Object],[object Object],[object Object],[object Object]

Thanks ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

APIs for all! ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],http://developer.yahoo.com/yrb/

How Flickr Helps us Make Sense of the World

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How Flickr Helps us Make Sense of the World

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