Silviu Cucerzan Researcher Microsoft Corporation.

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Silviu Cucerzan Silviu Cucerzan Researcher Researcher Microsoft Corporation Microsoft Corporation

Transcript of Silviu Cucerzan Researcher Microsoft Corporation.

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Silviu CucerzanSilviu CucerzanResearcherResearcherMicrosoft CorporationMicrosoft Corporation

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Browsed Browsed DocumentDocument

Search BoxSearch Box

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ALL PREVIOUS INTERACTIONSALL PREVIOUS INTERACTIONS

Browsed Browsed DocumentDocument

Search BoxSearch Box

heat shield

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NASANASA

Space stationSpace station

Solar panelsSolar panels

DiscoveryDiscovery

Space shuttleSpace shuttle

Space labSpace lab

John CurryJohn Curry

AtmosphericAtmospheric

reentryreentry

Power systemPower system

Peter KingPeter King

CBS NewsCBS News

Associated PressAssociated Press

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Real-time user intent

distribution

moviesnewsfan clubbiographygalleryofficial siteinterviewspictureswallpaperpostersimdbquotesscreensavers

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...28 airplane invention27 printing press invention42 light bulb invention

29 airplane inventor18 printing press inventor18 light bulb inventor

13 inventor of the airplane 27 inventor of the printing press 35 inventor of the light bulb

58 invention of airplane 50 invention of printing press 66 invention of light bulb

4 who invented airplanes3 who invented light bulbs

3 who invented the first airplane

5 who invented the first light bulb

...

...22 bicycle invention25 bicycle inventor9 bicycle inventors2 invented the bicycle2 inventers of the bicycle25 invention of bicycle31 invention of the bicycle3 invention of the first bicycle4 inventions of the bicycle13 inventor of bicycle15 inventor of the bicycle2 inventorofbicycles10 the invention of the bicycle6 the inventor of the bicycle2 when the bicycle was invented4 when was the bicycle invented2 when was the first bicycle invented3 where was the bicycle invented11 who invented bicycle77 who invented the bicycle3 who invented the first bicycle

...

bicycleWeb

Encarta Text

AskMSR who invented the bicycle?

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Surface form Mention of an entityreferred to as “Bush”

George W. BushGeorge H. W. BushBush, music bandReggie Bush…

Bush

The entity George W. Bush: George W. Bush, George Bush, President Bush, Bush, …

Text document

Named entityNamed entityrecognizerrecognizer

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George W. BushGeorge H. W. BushBush, music bandReggie Bush…

Texas, US stateTexas, pop bandTexas, novelUniversity of Texas at Austin…

Texas, US state

George W. Bush

Named entityNamed entityrecognizerrecognizer

Bush

Text document

Texas

Challenges:Challenges:Reference Reference

entitiesentitiesWorld World

knowledge knowledge

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Page TitleFirst Paragraph

Surface Form/Disambiguation

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such as 'Let Me Blow Ya Mind' by Eve and [[Gwen Stefani]] (whom he would produce …

In the video ''[[Cool (song)|Cool]]'', [[Gwen Stefani]] is made-up as Monroe. …

'[[South Side (song)|South Side]]' (featuring [[Gwen Stefani]]) #14 US …

[[1969]] - [[Gwen Stefani]], American singer ([[No Doubt]]) …

[[Rosie Gaines]], [[Carmen Electra]], [[Gwen Stefani]], [[Chuck D]], [[Angie Stone]], …

In late [[2004]], [[Gwen Stefani]] released a hit song called 'Rich Girl' which …

[[Gwen Stefani]] - lead singer of the band [[No Doubt]], who is now a successful …

[[Social Distortion]], and [[TSOL]]. [[Gwen Stefani]], lead vocalist of the [[alternative rock]] ...

main proponents (along with [[Gwen Stefani]] and [[Ashley Judd]]) in bringing back the …

The [[United States|American]] singer [[Gwen Stefani]] references Harajuku in several …

which also features vocals by [[No Doubt]]'s [[Gwen Stefani]]. The cover was included on …

co-written by [[Eric Stefani]] and [[Gwen Stefani]] and co-produced by Matthew Wilder …

E.g.: 385 references of Gwen Stefani in other Wikipedia articles

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Texas

Texas (US State)University of Texas

AustinUSS Texas

Texas (band)Texas (musical)

Texas (TV Series)Texas (novel)

Texas (SpongeBob episode)

Texas InstrumentsTexas County, OK

...

≈ 30

e.g.: Texas

Surface FormsSurface Forms

Texas (TV Series)

Tags: NBC network showsAmerican television

soapsTelevision spin-offs

Contexts:Another World

Pam LongPaul Rauch

...

EntitiesEntities

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the titles of entity pagesthe titles of redirecting pagesthe disambiguation pagesthe references to entity pages in other Wikipedia articles.

• the titles of entity pages

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the titles of entity pagesthe titles of redirecting pagesthe disambiguation pagesthe references to entity pages in other Wikipedia articles.

• the titles of redirecting pages

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the titles of entity pagesthe titles of redirecting pagesthe disambiguation pagesthe references to entity pages in other Wikipedia articles.

• the disambiguation pages

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the titles of entity pagesthe titles of redirecting pagesthe disambiguation pagesthe references to entity pages in otherWikipedia articles.

• the references to entity pages in other

• Wikipedia articles

Texas (TV Series)

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List pages (“List of [...]” “Table of [...]”)

540,000 pairs

Wikipedia categories2.65 million pairs

Lexicosyntactic patternsnoisy

• List pages (“List of [...]” “Table of [...]”)

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List pages (“List of [...]” “Table of [...]”)

540,000 pairs

Wikipedia categories2.65 million pairs

Lexicosyntactic patternsnoisy

• Wikipedia categories

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List pages (“List of [...]” “Table of [...]”)

540,000 pairs

Wikipedia categories2.65 million pairs

Lexicosyntactic patternsnoisy

• Lexicosyntactic patterns

LEX_Scotland_Music_#1

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Appositives and parentheticals in the titlesE.g.:Texas (TV Series)

Texas, Queensland

Entity references (links)

Appositives and parentheticals in the titlesE.g.:Texas (TV Series)

Texas, Queensland

Entity references (links)

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Appositives and parentheticals in the titlesE.g.:Texas (TV Series)

Texas, Queensland

Entity references (links)• Entity references (links)

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Truecasing

Named EntityRecognition

DocumentAnalysis

Disambiguation

CoreferenceResolution

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Stage 1: Sentence boundary detection and truecasing (sentence beginnings and titles)

Stage 2: Structural ambiguity resolutionConjunctions (e.g., Barnes and Noble)Possessives (e.g., Britain’s Tony Blair)Pp attachment (e.g., Whitney Museum in

New York)

by using Wikipedia and Web statistics:T1 Particle T2 search engine query “T1”

“T2”

Stage 3: 5-way named entity classification

Stage 4: Coreference resolutionShorter to longer formse.g., Brown/PERSON Michael Brown/PERSON Acronyms

Web and Corpus StatsRegular ExpressionsGazetteers

GazetteersWeb SearchQuery LogsWikipedia Entities

CoNLL 2003 StatisticsGazetteers

Heuristics

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1

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Text document Ds1

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snMaximize the similarity between the

document context d and each entity’s contextsas well as the category tags of each entity pair.

C = {c1,…,cM} - known contexts (all surface forms and appositives/parentheticals)T = {t1,…,tN} - known category tags

d = D ∩ C

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Optimization problem:

n

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More robust and simpler :

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Development:Reference: Wikipedia ver. 04/02/2006100 news stories from MSNBC

Evaluation:Reference: Wikipedia ver. 09/11/2006Test sets:

Wikipedia data: 88.3%News: 91.4%

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© 2007 Microsoft Corporation. All rights reserved. Microsoft, Windows, Windows Vista and other product names are or may be registered trademarks and/or trademarks in the U.S. and/or other countries.

The information herein is for informational purposes only and represents the current view of Microsoft Corporation as of the date of this presentation. Because Microsoft must respond to changing market conditions, it should not be interpreted to be a commitment on the part of Microsoft, and Microsoft cannot guarantee the accuracy of any information provided after

the date of this presentation. MICROSOFT MAKES NO WARRANTIES, EXPRESS, IMPLIED OR STATUTORY, AS TO THE INFORMATION IN THIS PRESENTATION.

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Microsoft Research Faculty Summit 2007