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Eyes on the World: Putting Your Photos in Context. Mor Naaman Yahoo! Research Berkeley. Attraction Map of Paris. Stanley Milgram, 1976. Psychological Maps of Paris. Attraction Map of London. Jaffe et al, 2006. Outline. Wisdom of the tags mining information from geo-tagged photos - PowerPoint PPT Presentation
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Eyes on the World:Putting Your Photos in Context
Mor Naaman
Yahoo! Research Berkeley
http://zonetag.research.yahoo.com 2
Attraction Map of Paris
Stanley Milgram, 1976. Psychological Maps of Paris
http://zonetag.research.yahoo.com 3
Attraction Map of London
Jaffe et al, 2006.
http://zonetag.research.yahoo.com 4
Outline
• Wisdom of the tags – mining information from geo-tagged photos
• ZoneTag – your photos in context
• Why we tag – a user study of tagging
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Alternative Outline
How?
What?
Why?
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Information Overload?
Flickr “geotagged”
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What can we derive?
• Dataset:
(photo_id, user_id, latitude, longitude)
(photo_id, tag)
Given all photos from a geographic region,- find a “representative” summary set- generate a meaningful visualization
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Issues to Tackle
• Noisy data
• Photographer biases– In locations– In Tags
• Wrong data
Whatever, color, city, spectrum, santa barbara, california, usa, Lookatme, Herbert Bayer Chromatic Gate
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Intuition
More “activity” in a certain location indicates importance of that location
Tag that are unique to a certain location can suggest importance of that location
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(Very) Simple Example
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Summary of San Francisco
Golden Gate Bridge TransAmerica
AT&T Baseball Park
Golden Gate Twin Peaks Golden Gate
Bay BridgeOcean Beach Chinatown
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Tag Maps
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Tag Maps
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Outline
• Wisdom of the tags – mining information from geo-tagged photos
• ZoneTag – your photos in context
• Why we tag – a user study of tagging
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Outline
How?
What?
Why?
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Another Look at the Tag Map
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ZoneTag(?)
How would we:Create/store?Find?Share?Discover?
“Everything in the world exists to end up in a photograph” -- Susan Sontag
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• Programmable
• Context-aware
• Network-connected
• Quality… it’s getting there
Why Cameraphones?
• Numbers, numbers…– 500,000,000
(Source: Future Image Inc.)
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Current Mobile Experience
• Difficult to share (or even save!)
• Hard to find– No context– No semantic
information
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ZoneTag Experience
• 2-click upload (same key!)
• Photo uploaded with location and time metadata
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ZoneTag Experience
• Tagging made easy– Tag/annotate your photos from the phone
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Where do locations come from?
• Bluetooth GPS (when available)
• User-contributed cell tower mapping
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Where do tags come from?
• Tags I used in this context (`home’)
• Tags my friends used in this context (`Research Meeting’)
• Tags other people used in this context (`PARC’, ‘Mor Naaman’, `This talk sucks’)
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Where do tags come from?
• Stuff around you: – Yahoo! Local – Upcoming.org (`Mor Naaman @ PARC’, `PARC
George E. Pake Auditorium’)
• Stuff from you (any RSS 2.0 feed):– Calendar (G, Upcoming.org, Kiko,…)– Favorite hangouts
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Suggested Tags
“When I went to upload, there were already all these exotic tags like
"Bill Graham Civic
Auditorium" and "Bob dylan
live" available...it
sure was convenient to just select and go…”
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Where do tags go?
• Back to the original RSS items– Upcoming.org
• Action Tags– Trigger a call to a web service
• With parameters
– Command line - from your phone
Rotate:right Email:dad Group:zonetag Scanr:document
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I’m Too Lazy (you’re not alone)
• Tagging is the means, not the goal
• Benefits even if you never tagged a single image
(Bradley Horowitz, elatable.com)
(?)
(?)
(?)
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Things We Learned
• “Best” feature: 2-click upload– Even users that often tag
• For some, last chance to annotate
• Mobile tagging - not just experts, not all experts…
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Things We Learned
• Tagging behavior: – All over the place
– More than Shozu– Connected to privacy
The relative number of users for different ranges of tag usage (n=172)
0%
5%
10%
15%
20%
25%
30%
<0.5 <1 <1.5 <2 <2.5 <3 <3.5 <4 <4.5 <5 5+
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Outline
• Wisdom of the tags – mining information from geo-tagged photos
• ZoneTag – your photos in context
• Why we tag – a user study of tagging
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Outline
How?
What?
Why?
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Why Tag?
• What are tags?
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Why Tag?
Bay Bridge, Fog, [San Francisco, 94105]
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Why Tag?
RedSox, Fenway, GreenMonster, [Boston, 02215], …
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Why Tag?
Liz, sunbathing, sunny, sunglasses, concrete, [Palo Alto, 94306], …
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Tag Affordances on Flickr
• Displayed next to photo
• Can be used to search:– Your own photos– Others’ photos– Public photos
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Tags on ZoneTag
• By default, tags are kept from one photo to next
• Tags used in a location will be suggested in that location– To you– To others
• Immediate (i.e., during event)
• Place name tags added automatically
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User Study
• 13 ZoneTag users (23-45, 9m, 4f)
• All “taggers” (no use to ask non-taggers why they tag)
• Structured interviews
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Expected…
• Organization/retrieval
• Creator/synthesizer
• “Tagging for community”
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Found…
• Motivation taxonomy• No “synthesizers”• Inspired by community
• Organization/retrieval• Creator/Synthesizer• “Tagging for community”X
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Motivation Taxonomy
QuickTime™ and aTIFF (LZW) decompressor
are needed to see this picture.
“If I tagged ahead of time I can go back and get all my pictures of [my children]
…”
“…I then think “well, maybe I should tag
this” so I can find it again
later”“I’m
obsessive-compulsive”
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Motivation Taxonomy
QuickTime™ and aTIFF (LZW) decompressor
are needed to see this picture.
“I want at least one hook of association in there that can help me reconstruct…”
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Motivation Taxonomy
QuickTime™ and aTIFF (LZW) decompressor
are needed to see this picture.
“I tag photos with what I think might
be interesting to other
people, stuff I think
people will like”
“I know that tagging can connect my photos to activities, and get more interest”
“I want to look at all
[my neighborhood’s] tags. … That’s
definitely a reason I’m
putting these tags in ”
“...at night, by the fires all around the market, ... at each word that one man says -- such as 'wolf', 'sister', 'hidden
treasure', 'battle', 'scabies', 'lovers' -- the others tell, each
one, his tale of wolves, sisters, treasures, scabies, lovers,
battles.” -- Italo Calvino,
Invisible Cities
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Motivation Taxonomy
QuickTime™ and aTIFF (LZW) decompressor
are needed to see this picture.
“…so that my friends can see what I am
up to” I can tell my mom [with the tag] “look, we
went to…”
“I left reviews of
places – like at the
airport, when my flight was delayed, I
tagged “Aloha Air sucks.”
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Breakdown
Organization Communication
Self P2,P6,P10, P12, P3, P8, P11
P1, P6, P2
Social (friends/family)
P8, P6
P1, P4, P7, P11, P6, P8
(public) P3, P9, P13, P2, P4, P6, P7, P8, P11, P12
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Suggested Tags
• Useful for entry, when they “work”– Critical mass needed– Better filtering
• Inspire and give example
• Overtagging may be issue
“Tag suggestions were huge for
me; they really cut down on typing”
“I thought: this is how I want it to work all the
time!”
“This person was in my phone for a
month - who is she???”
“I try to use as many
suggested tags that apply. … I also use it for auto-
completion – I type “s” to get San
Francisco”
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Open Questions
• Those who don’t…
• Better filtering, tag suggestions
• Longer usage trends
• Effect of community on usage
• …
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Final Notes
• All Flickr/ZT photos, Creative Commons or with author permission
• http://www.flickr.com/photos/frozenquack/106111967/• http://www.flickr.com/photos/bryce_edwards/272002447/• http://www.flickr.com/photos/plasticbag/188818779/• http://www.flickr.com/photos/groovymother/131591824/• http://www.flickr.com/photos/deaneckles/220482624/
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ZoneTag For All
• Everything we can do, you can do (better?)– Cell ID translation– Suggested Tags– More…
• Use ZT-technology with your app!
• Email me
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Thanks
With: Shane Ahern, Simon King, Rahul Nair, Nathan Good, Marc Davis, Morgan Ames, Dean Eckles, Alex Jaffe, Tamir Tassa
Download, sign up, get the full scoop:http://zonetag.research.yahoo.com
Become an intern, get involved:Email me.