Conference Live: Accessible and Sociable Conference Semantic Data

IntroductionSemantic Data collectionConference Live System

Conclusions

Conference Live: Accessible and SociableConference Semantic Data

Anna Lisa Gentile,Maribel Acosta, Luca Costabello, Andrea Giovanni Nuzzolese,

Valentina Presutti, Diego Reforgiato Recupero

SAVE-SD 2015 19th May 2015

A. L. Gentile, M. Acosta, L. Costabello, A. G. Nuzzolese, V. Presutti, D. Reforgiato 1 / 28


Conclusions

Outline

Conference Live: Accessible and Sociable Conference Semantic Data

1 Introduction

2 Semantic Data collection

3 Conference Live System

4 Conclusions



Conclusions

Scope


produce and publish linked data about academic conferences

Semantic Web Dog Food1 (SWDF)linked data about papers, people, organizations, and eventsrelated to academic conferences

use the produced linked dataConference Live mobile/Web application

exploits SWDF dataintegrates social network and crowdsourcing functionalities

1SWDF: http://data.semanticweb.orgA. L. Gentile, M. Acosta, L. Costabello, A. G. Nuzzolese, V. Presutti, D. Reforgiato 3 / 28

http://data.semanticweb.org


Conclusions

State of the art


Data representationfirst example of comprehensive semantic descriptions ofconference events - ESWC 2006 and ISWC 2006 conferences[Möller et al., 2007]Semantic Web Conference Ontology [Möller et al., 2009] asvocabulary of choiceSPAR http://sempublishing.sourceforge.net

Data explorationLive-con app [Médini et al., 2013]2

EventMedia [Khrouf and Troncy, 2012] for general events3

Confomaton [Khrouf et al., 2012] - a component of Confomatonspecifically taylored for the conference scenarioConference Explorer4

2http://live-con.com/apps/3811th-eswc-2014#3http://eventmedia.eurecom.fr4http://conference-explorer.fluidops.net


http://sempublishing.sourceforge.net

http://live-con.com/apps/3811th-eswc-2014#

http://eventmedia.eurecom.fr

http://conference-explorer.fluidops.net


Conclusions

State of the art: commercial solutions


Sched http://sched.org/

EventBoard http://www.eventboardmobile.com/

Eventmobi http://www.eventmobi.com/

Whova http://www.whova.com/

Quickmobile http://www.quickmobile.com/

the guidebook event apphttps://guidebook.com/event-apps/

the doubledutch event apphttp://doubledutch.me/event-app.html

... many others


http://sched.org/

http://www.eventboardmobile.com/

http://www.eventmobi.com/

http://www.whova.com/

http://www.quickmobile.com/

https://guidebook.com/event-apps/

http://doubledutch.me/event-app.html


Conclusions

Outline


1 Introduction



4 Conclusions



Conclusions

Data collection


INPUT: different unstructured and semi-structured resource

OUTPUT: data expressed with appropriate vocabularies to beexposed as linked data

we follow recommendations in [Möller et al., 2007]

we introduce novelties in vocabulary



Conclusions

Semantic Web Conference ontology


Figure: SWC ontology http://data.semanticweb.org/ns/swc/swc_2009-05-09.html


http://data.semanticweb.org/ns/swc/swc_2009-05-09.html


Conclusions

Semantic Web Conference ontology


one of the vocabulary of choice to describe academicconferences [Möller et al., 2009]extends and combines existing widely accepted vocabularies

FOAF [Brickley and Miller, 2007]SIOC [Berrueta et al., 2007]Dublin Core [Beckett et al., 2002]...



Conclusions

Additional requirements


External feedback

Internal feedback

Voting system

Scheduling

Browsing

Ontology for additional featuresontologydesignpatterns.org/ont/eswc/ontology.owl


ontologydesignpatterns.org/ont/eswc/ontology.owl


Conclusions

External feedback


eswc:hashtag

domain swc:InProceedings

range xsd:string

Prefixesxsd:<http://www.w3.org/2001/XMLSchema#>eswc:<http://ontologydesignpatterns.org/ont/eswc/ontology.owl#>foaf:<http://xmlns.com/foaf/0.1/>scioc:<http://rdfs.org/sioc/ns#>swc:<http://data.semanticweb.org/ns/swc/ontology#>

dbpedia-owl:<http://dbpedia.org/ontology/>


http://www.w3.org/2001/XMLSchema#

http://ontologydesignpatterns.org/ont/eswc/ontology.owl#

http://xmlns.com/foaf/0.1/

http://rdfs.org/sioc/ns#

http://data.semanticweb.org/ns/swc/ontology#

http://dbpedia.org/ontology/


Conclusions

Internal feedback


User feedbackindividual of the class sioc:Postassociated with a paper (instance of swc:InProceedings)has a recognized sentiment (instance of kdo:Sentiment)

association paper-feedback-sentimenteswc:hasArtefactAsTopickdo:hasSentiment

polarity (kdo:hasPolarity) eitherkdo:positivePolarity, kdo:negativePolarity orkdo:neutralPolaritypolarity score kdo:hasScore



Conclusions

Voting system


To capture user votes, we introduced the property eswc:votes forindividual of the class foaf:Person, holding a voter role(eswc:voter)



Conclusions

Browsing


Social media accounts: foaf:account connecting afoaf:Person to individuals of the classfoaf:OnlineAccount

Images: foaf:depiction capturing a foaf:Personpicture

Paper icons: dbpedia-owl:thumbnail capturing athumbnail for a swc:InProceedings



Conclusions

Data Collection and Tranformation


eswcMainGraphrdf graph of conference data (expressed with SWC vocabulary)obtained via script transformation of XML data from easychairconference management system5

contains: main conference track, in-use conference trackdoes not contain: conference satellites events (e.g. challenges,posters, demos and workshops)

eswcRelatedGraphrdf graph of satellites events, in the same format ofeswcMainGraphobtained via script transformation of csv data from satellite events

5http://www.easychair.org/A. L. Gentile, M. Acosta, L. Costabello, A. G. Nuzzolese, V. Presutti, D. Reforgiato 15 / 28

http://www.easychair.org/


Conclusions

Data Cleaning and Augmentation




Conclusions

Data Cleaning


convention to generate a URIs for a personhttp://data.semanticweb.org/person/<firstname>-<middle-names-if-present>-<surname>-<additional-surnames-if-present>

people with multiple names and surnames are sometime reportedinconsistently in different papers

For each person URI, query the SWDF corpus and check if existsalready

If not, query all possible alternative options (e.g. with a URI that doesnot use the middle name of a person)

If options are found, manually checked them

if no option is found, use the new generated URI

final cleaned data from eswcMainGraph and eswcRelatedGraph ismerged into eswcGraph


http://data.semanticweb.org/person/<firstname>-<middle-names-if-present>-<surname>-<additional-surnames-if-present>




Conclusions

Sceduling


collect csv data about presentation schedule from all eventorganizers

generate an rdf graph eswcCalendar with transformation script,using the RDF Calendar vocabulary6

integrate eswcCalendar with eswcGraph by matching paper titlesthe relation between a paper and its presentation event with thetwo inverse properties eswc:isPresented and eswc:presents

6http://www.w3.org/TR/rdfcalA. L. Gentile, M. Acosta, L. Costabello, A. G. Nuzzolese, V. Presutti, D. Reforgiato 18 / 28

http://www.w3.org/TR/rdfcal


Conclusions

Outline


1 Introduction



4 Conclusions



Conclusions

Conference Live System


triple storesstatic store: data collected and loaded before the conference(accessible through a REST API 7)dynamic store: data collected during the conference via thefront-end application (user feedback and votes)

external feedback from the Twitter is not stored internally, butretrieved by using the Twitter API

7http://isotta.cs.unibo.it:9292/apiA. L. Gentile, M. Acosta, L. Costabello, A. G. Nuzzolese, V. Presutti, D. Reforgiato 20 / 28

http://isotta.cs.unibo.it:9292/api


Conclusions

Conference Live System




Conclusions

Social network widget


list of public tweets associated to each paper

embedded Twitter timelines8

one timeline from each hashtag associated to a paper

8https://dev.twitter.com/docs/embedded-timelinesA. L. Gentile, M. Acosta, L. Costabello, A. G. Nuzzolese, V. Presutti, D. Reforgiato 22 / 28

https://dev.twitter.com/docs/embedded-timelines


Conclusions

Implementation details


cross-platform web application

developed in JavaScript

based on the Backbone.js http://backbonejs.org/

front-end adoptsBootstrap http://getbootstrap.com/ frameworkUnderscore.js http://underscorejs.org templating engine

packaged as cross-platform, native mobile applications using theApache Cordova framework http://cordova.apache.org

a web-based application http://2014.eswc-conferences.org/Live

Google Play store http://play.google.com

iTunes http://www.apple.com/itunes/


http://backbonejs.org/

http://getbootstrap.com/

http://underscorejs.org

http://cordova.apache.org

http://2014.eswc-conferences.org/Live

http://play.google.com

http://www.apple.com/itunes/


Conclusions

Outline


1 Introduction



4 Conclusions



Conclusions

Conclusions and future work


data collection methodology

novel application, named Conference Livecollecting data (for satellites events)

good practise: integrate data collection in the conferenceorganization procedure as early as possible

verifying and cleaning datadistribute it to the crowd during data collection

approach used during:ESWC2014ISWC2014



Conclusions

Future work


reuse the data collection methodology for ESWC2015release the whole data collection framework Open Sourcehttps://github.com/AnLiGentile/eswcConfMetadata

develop a novel front-end applicationin collaboration with Sympozer http://www.sympozer.com


https://github.com/AnLiGentile/eswcConfMetadata

https://github.com/AnLiGentile/eswcConfMetadata

http://www.sympozer.com


Conclusions

Further reading I


Beckett, D., Miller, E., and Brickey, D. (2002).

Expressing simple dublin core in rdf/xml.retrievable on line at http://dublincore.org/documents/dcmes-xml/.

Berrueta, D., Brickley, D., Decker, S., Fernández, S., Görn, C., Harth, A., Heath, T., Idehen, K., Kjernsmo, K., Miles, A.,

Passant, A., Polleres, A., Polo, L., and Sintek, M. (2007).SIOC Core Ontology Specification.W3c member submission, W3C.

Brickley, D. and Miller, L. (2007).

FOAF Vocabulary Specification.Technical report, FOAF project.Published online on May 24th, 2007 at http://xmlns.com/foaf/spec/20070524.html.

Khrouf, H., Atemezing, G., Steiner, T., Rizzo, G., and Troncy, R. (2012).

Confomaton: A conference enhancer with social media from the cloud.In ESWC 2012.

Khrouf, H. and Troncy, R. (2012).

Eventmedia: A lod dataset of events illustrated with media.Semantic Web journal, sp. iss. on Linked Dataset descriptions, pages 1570–0844.

Médini, L., Bâcle, F., and Nguyen, H. D. T. (2013).

Dataconf: Enriching conference publications with a mobile mashup application.In Proc. of WWW ’13, pages 477–478.


http://dublincore.org/documents/dcmes-xml/

http://xmlns.com/foaf/spec/20070524.html


Conclusions

Further reading II


Möller, K., Bechofer, S., and Heath, T. (2009).

Semantic web conference ontology.retrievable on line at http://data.semanticweb.org/ns/swc/swc_2009-05-09.html.

Möller, K., Heath, T., Handschuh, S., and Domingue, J. (2007).

Recipes for semantic web dog food: The eswc and iswc metadata projects.In Proc. of ISWC’07/ASWC’07, pages 802–815, Berlin, Heidelberg. Springer-Verlag.


http://data.semanticweb.org/ns/swc/swc_2009-05-09.html

Data & Analytics

Conference Live: Accessible and Sociable Conference Semantic Data