A Study of Web Logs for Personalizing the MultiLingual Information Access to The European Library

““Cross-Media and Personalized Learning Applications on top of Digital Libraries”Cross-Media and Personalized Learning Applications on top of Digital Libraries”20 September 2007, Budapest, Hungary 20 September 2007, Budapest, Hungary

M. Agosti1, T. Coppotelli1, G.M. Di Nunzio1, N. Ferro1,

E. van der Meulen2

2 2 The European Library, The NetherlandsThe European Library, The Netherlands

1 1 Information Management Systems (IMS) Research GroupInformation Management Systems (IMS) Research GroupDepartment of Information EngineeringDepartment of Information Engineering

University of Padua, ItalyUniversity of Padua, Italy

A Study of Web Logs for Personalizing the MultiLingual A Study of Web Logs for Personalizing the MultiLingual Information Access to The European LibraryInformation Access to The European Library

20 September 2007, Budapest, 20 September 2007, Budapest, Hungary Hungary

22M. Agosti, T. Coppotelli, G.M. Di Nunzio, N. Ferro, E. van der MeulenM. Agosti, T. Coppotelli, G.M. Di Nunzio, N. Ferro, E. van der Meulen

LADLLADL20072007 OutlineOutline

The European LibraryThe European Library

Web LogsWeb Logs

MultiLingual Information Access (MLIA)

Web Log AnalysisWeb Log Analysis Geographic provenanceGeographic provenance Collections usageCollections usage DiscussionDiscussion

Conclusion and Future workConclusion and Future work



LADLLADL20072007

The European Library The European Library http://www.theeuropeanlibrary.org/http://www.theeuropeanlibrary.org/

• Provide access to most of the European National Digital LibrariesProvide access to most of the European National Digital Libraries

• Many different languages Many different languages

• Resources can be both digital or bibliographical (books, posters, Resources can be both digital or bibliographical (books, posters, maps, sound recordings, videos, etc.). maps, sound recordings, videos, etc.).



LADLLADL20072007 The European LibraryThe European Library

The European Library collections are suitable for The European Library collections are suitable for Learning/E-LearningLearning/E-Learning Quality / Reliability Quality / Reliability

How the analysis of WEB Log can help in implementing How the analysis of WEB Log can help in implementing MLIAMLIA

Questions we posed at the beginning of our work:Questions we posed at the beginning of our work: How can E-learning systems deal with collections in different How can E-learning systems deal with collections in different

languages?languages? Are users interested in multilingual/cross-collections instruments?Are users interested in multilingual/cross-collections instruments? What are their preferences?What are their preferences? Are them influenced by language?Are them influenced by language?



LADLLADL20072007 The European LibraryThe European Library

User interaction mainly on the client sideUser interaction mainly on the client side

Web Server logsWeb Server logs



LADLLADL20072007 HTTP Log: structure of the dataHTTP Log: structure of the data

W3C Extended Log File Format

2007-01-01 00:04:05 192.87.31.35 GET /Index.html - 80 - 70. *.*.**.*.* Mozilla/4.0+(compatible;+MSIE+7.0;+Windows+NT+5.1;+.NET+CLR+1.1.4322) - http://www.google.com/search?sourceid=navclient&gfns=1&ie=UTF-8&rls=PCTA,PCTA:2006-33,PCTA:en&q=read+tokyopop+books+online cTargets=collections:a0000,collections:a0037,collections:a0200,collections:a0141,collections:a0010,collections:a0035,collections:a0086,collections:a0132,collections:a0067,collections:a0001,collections:a0062,collections:a0130,collections:a0163,collections:a0211,collections:a0194,collections:a0075,collections:a0073,collections:a0066;+TELSESSID=d551tvd9legbq3rh4l23rjkgh7;+AreCookiesEnabled=889;+cTargetsThemes=theme0 0 0 381 535 203



LADLLADL20072007 Log analysisLog analysis

Logs

On demand query

October 1st 2006 to April 30th 2007October 1st 2006 to April 30th 2007

22,458,350 Requests22,458,350 Requests

209,900 different sessions reconstructed using cookies209,900 different sessions reconstructed using cookies

Log processing



LADLLADL20072007 MLIAMLIA

MultiLingual Information Access (MLIA) ““possibility for the users of the system to access and search the possibility for the users of the system to access and search the

federated libraries in a personalized way that can allow them to federated libraries in a personalized way that can allow them to access the collections of documents in their mother tongue and access the collections of documents in their mother tongue and in other preferred languages”in other preferred languages”

Issues:Issues: Interaction happens outside the systemInteraction happens outside the system

Logs contain mainly navigational and browsing activityLogs contain mainly navigational and browsing activity No control over query sentNo control over query sent

MLIA require modifications both on TEL and Digital Libraries servicesMLIA require modifications both on TEL and Digital Libraries services Control over the central indexControl over the central index




Isolated Query TranslationIsolated Query Translation Translation and Retrieval are separatedTranslation and Retrieval are separated

Translation Component

Translation

Retrieval Component

Pseudo-translationPseudo-translation Central index translatedCentral index translated

Index

IndexIndex

Index

IndexIndex

Index

translation




Language to language context (+400 language Language to language context (+400 language resources)resources) Pivot languagePivot language

Does the user like the query translation approach?Does the user like the query translation approach? Poor interaction versus rich interactionPoor interaction versus rich interaction

When should we prefer direct translation?When should we prefer direct translation? User geographical distributionUser geographical distribution Collection usageCollection usage Language to language preferencesLanguage to language preferences Promoting usagePromoting usage



LADLLADL20072007 Session lengthSession length



LADLLADL20072007 Geographic provenanceGeographic provenance



LADLLADL20072007 Collections usageCollections usage

0

20000

40000

60000

80000

100000

120000

140000

160000

*a00

00*a

0037

*a01

41*a

0010

*a01

32*a

0001

*a00

67*a

0211

*a02

00*a

0086

*a01

63*a

0062

*a00

35*a

0130

*a00

73*a

0075

*a00

66*a

0229

*a01

95*a

0224

*a02

32*a

0047

a019

4*a

0186

a014

2a0

063

a000

5a0

055

a012

9a0

107

Most used collections

First time user Collection selection

*a0000 Online books, images, maps, music...

*a0037 British Library integrated catalogue

*a0141BN-OPALE PLUS, the catalogue of the Bibliothèque nationale de

France

*a0010 Online catalogue of the German National Library

*a0132 General Catalogue Koninklijke Bibliotheek

*a0001KatNUK: the catalogue of the Slovene National and University

Library

*a0067 HELVETICAT : the catalogue of the Swiss National Library

Default list




0

2000

4000

6000

8000

10000

12000

a014

2a0

063

a000

5a0

055

a012

9a0

107

a016

6a0

070

a017

1a0

002

a017

5a0

167

a019

3a0

150

a012

3a0

155

a018

8a0

082

a010

9a0

124

a001

4a0

019

a000

4a0

104

a015

7a0

154

a013

6a0

031

a005

7

Most selected collections




FR

AP

OL

DE

UU

SA

ITA

ES

PB

EL

NLD

GB

RC

HE

GR

CR

OM

HU

NP

RT

AU

TC

ZE

AR

GE

ST

CA

N

LTU

a0107

a0129

a0055

a0005

a0063

a01420

200

400

600

800

1000

1200

1400

1600



LADLLADL20072007 ConclusionsConclusions

How can E-learning systems deal with collections in How can E-learning systems deal with collections in different languages?different languages? Isolated query translation versus pseudo-translationIsolated query translation versus pseudo-translation

Are users interested in multilingual/cross-collections Are users interested in multilingual/cross-collections instruments?instruments? Data showed that there is a demand for multilingual contents Data showed that there is a demand for multilingual contents

and users are interested in more multilingual functionalitiesand users are interested in more multilingual functionalities

What are their preferences?What are their preferences? The achieved results allowed The European Library to better

know users preference about multilingual resources (user distribution, collection selection, …)

Are them influenced by language?Are them influenced by language? There is a correlation between language and user behaviorThere is a correlation between language and user behavior



LADLLADL20072007 Future work: new questionsFuture work: new questions

Do users navigate the portal displaying data in their mother tongue or do they prefer to use the default language (English)? 80% use the portal as it is

Do English users search only on English collections? Query language not present in HTTP logs Action logs

53475 sessions, 15674 advanced searches, 783 searches based on language

Most ENG,FRE, GER, ITA



LADLLADL20072007

Question?Question?

Documents

A Study of Web Logs for Personalizing the MultiLingual Information Access to The European Library