Ecole d'ingénieur et centre de recherche en Sciences du numérique

Generating semantic snapshots of newscasts using entity expansion

Redondo-Garcia, José Luis; Rizzo, Giuseppe; Perez Romero, Lilia; Hildebrand, Michiel; Troncy, Raphaël

ICWE 2015, 15th International Conference on Web Engineering, June 23-26, 2015, Rotterdam, The Netherlands / Also published in LNCS 9114/2015

TV newscasts report about the latest event-related facts occurring in the world. But relying exclusively on them is therefore insucient to fully grasp the context of the fact being reported. In this paper we propose an approach that retrieves and analyzes related documents in the Web to automatically generate semantic annotations that provide viewers and experts comprehensive information about the news. Named entities detected in the retrieved documents further disclose relevant concepts that were not explicitly mentioned in the original newscast. A ranking algorithm based on entity frequency, popularity peak analysis, and domain experts rules sorts those annotations to generate the Semantic Snapshot of the considered Newscast (NSS). We benchmark this method against a gold standard generated by domain experts and assessed via a user survey over ve BBC newscasts. Results of the experiments show the robustness of the approach holding an Average Normalized Discounted Cumulative Gain of 66.6%.

Document Doi Bibtex

Titre:Generating semantic snapshots of newscasts using entity expansion
Mots Clés:Semantic Video Annotation, Entity Expansion, Newscasts
Type:Conférence
Langue:English
Ville:Rotterdam
Pays:PAYS-BAS
Date:
Département:Data Science
Eurecom ref:4612
Copyright: © Springer. Personal use of this material is permitted. The definitive version of this paper was published in ICWE 2015, 15th International Conference on Web Engineering, June 23-26, 2015, Rotterdam, The Netherlands / Also published in LNCS 9114/2015 and is available at : http://dx.doi.org/10.1007/978-3-319-19890-3_26
Bibtex: @inproceedings{EURECOM+4612, doi = {http://dx.doi.org/10.1007/978-3-319-19890-3_26}, year = {2015}, title = {{G}enerating semantic snapshots of newscasts using entity expansion}, author = {{R}edondo-{G}arcia, {J}os{\'e} {L}uis and {R}izzo, {G}iuseppe and {P}erez {R}omero, {L}ilia and {H}ildebrand, {M}ichiel and {T}roncy, {R}apha{\"e}l }, booktitle = {{ICWE} 2015, 15th {I}nternational {C}onference on {W}eb {E}ngineering, {J}une 23-26, 2015, {R}otterdam, {T}he {N}etherlands / {A}lso published in {LNCS} 9114/2015}, address = {{R}otterdam, {PAYS}-{BAS}}, month = {06}, url = {http://www.eurecom.fr/publication/4612} }
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