Developers are People, Too Mor Naaman Yahoo! Research Berkeley *Any views or opinions expressed during this panel are those of the author only and do not represent those of Yahoo, Yahoo! Research, or Flickr -- sometimes they do not even represent the author himself.

People are Strange People are Strange. http://flickr.com/photos/genial23/334807527

Why do People Tag? Well, mostly, they don’t But if they do (say, on Flickr): “ Why We Tag”, CHI2007

Well, mostly, they don’t

But if they do (say, on Flickr):

Explanation, please Simple Source: Rashmi Sinha Powerful Tied with their natural motivations

Simple

Source: Rashmi Sinha

Powerful

Tied with their natural motivations

Our Mission Automatically generate tag semantics Few places to start Word-based models E.g., Flickr Clustering E.g., Subsumption E.g., LSI Metadata can help, too

Automatically generate tag semantics

Few places to start

Word-based models

E.g., Flickr Clustering

E.g., Subsumption

E.g., LSI

Metadata can help, too

tagmaps.research.yahoo.com “ World Explorer”, JCDL2007

Extracting Event/Place Semantics “ Extracting Tag Semantics”, SIGIR2007

Developers are people, too! http://flickr.com/photos/fotex/217896072/

Developer Needs Requirements for developing applications that make use or manipulate metadata: Simple Powerful Tied with their natural motivations Just like people!

Requirements for developing applications that make use or manipulate metadata:

Simple

Powerful

Tied with their natural motivations

I too am a Web2.0 Developer My team will support a format: If it’s simple If it’s useful for us If it “plays nice” with key applications So far: RSS and GEO-RSS KML and GPX EXIF (read only) Flickr Machine Tags

My team will support a format:

If it’s simple

If it’s useful for us

If it “plays nice” with key applications

So far:

RSS and GEO-RSS

KML and GPX

EXIF (read only)

Flickr Machine Tags

Machine Tags?? “ Machine tags are not RDF but they could play RDF on TV.” - Aaron Cope, Hackr (Flickr) Book:author=“Tim B.L.” celltower:lac=205 Geo:latitude=23.12 ylocal:venue=224323 camel:humpcount=2 upcoming:event=12413 flower:color=red summit:altitude=2321

“ Machine tags are not RDF but they could play RDF on TV.”

- Aaron Cope, Hackr (Flickr)

What’s the Point? Format is emerging Reflects needs of developers Reflects properties of data Simple Powerful

Format is emerging

Reflects needs of developers

Reflects properties of data

Simple

Powerful

What’s the Problem? Namespace/semantics not defined Multiple formats for same semantics Multiple semantics for same subjects/predicates/objects… It’s up to us to make sense of it Us == researchers Schema mapping, pattern extraction and recognition, semantic analysis…

Namespace/semantics not defined

Multiple formats for same semantics

Multiple semantics for same subjects/predicates/objects…

It’s up to us to make sense of it

Us == researchers

Schema mapping, pattern extraction and recognition, semantic analysis…

Discuss: The Semantic Web is Dead Welcome to the Emerging-Semantics Web!

Send me your wrath More fun and games: www.yahooresearchberkeley.com Mor Naaman http://infolab.stanford.edu/~mor