exploring semantic means

exploring semantic means Daniel Tunkelang Chief Scientist, Endeca

about me
1988 – 1992
1993 – 1998
1999 -

overview
a means, not an end
exploratory search (HCIR)
searching for meaning

do you like our owl?

a means, not an end The Semantic Web will improve the connections between knowledge on the web and software.

so much religion, so little time
Skeptical reactions
Practical feasibility
An unrealized idea
Censorship and privacy
Doubling output formats
Need
vs.

what semantic means to (people who pay) me
using linguistic and statistical approaches to derive meaning from unstructured text
using semantic web approaches to represent meaning in content and query structure

exploratory search
what i really care about
what you should care about too
especially if you see more to information seeking than google

what would google do? information Need query select from results rank using IR model USER: SYSTEM: tf-idf PageRank

assumptions of relevance-centric approach
self-awareness
self-expression
model knows best
answer is a document
one-shot query

human-computer information retrieval
don’t just guess the user’s intent
optimize communication
increase user responsibility and control
require and reward human intellectual effort
“ Toward Human-Computer Information Retrieval” Gary Marchionini

let’s make this concrete
Colleague: Hey Daniel! You should check out what this guy Steve Pollitt’s been researching. Sounds right up your alley.
Daniel: Sure thing, I’ll look into it.

google him!

google scholar him?

hcir-inspired interface

tags provide summarization and guidance

my information need evolves as i learn

how did we do that?
wisdom of crowds
corpus analysis
scope the problem
target exploratory search

if you prefer sports to computer science

a more current slide…

hcir can get fancy

and there’s query structure side of semantics

a more current example All reviewers Reviewers Under 18

one last example
“…As an example, I may be interested in the tensions between government and newly nationalized banks over the bonus culture that taxpayers are now funding (a hot topic in the UK currently)…”
--a commenter at The Noisy Channel, in a discussion of exploratory search for news

still in private beta…

following the information scent

to explore the news

in closing
let’s not quibble over protocols
exploration is the killer app for semantic tech
it’s real, and it’s fabulous!

thank you
communication 1.0
email: [email_address]
communication 2.0
blog: http://thenoisychannel.com
twitter: http://twitter.com/dtunkelang

http://thenoisychannel.com	174
http://www.cs.cmu.edu	67
http://www.slideshare.net	6
http://blog.contentmanagementconnection.com	4
https://wiki.atlantictranslations.com	3
http://smartdatacollective.com	2
http://static.slideshare.net	2

exploring semantic means

by Daniel Tunkelang on Mar 06, 2009

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exploring semantic means — Presentation Transcript