Getting the Agenda Right: Measuring Media Agenda using Topic Models (CROSBI ID 627750)
Prilog sa skupa u zborniku | izvorni znanstveni rad | međunarodna recenzija
Podaci o odgovornosti
Korenčić, Damir ; Ristov, Strahil ; Šnajder, Jan
engleski
Getting the Agenda Right: Measuring Media Agenda using Topic Models
Agenda setting is the theory of how issue salience is transferred from the media to media audience. An agenda-setting study requires one to define a set of issues and to measure their salience. We propose a semi-supervised approach based on topic modeling for exploring a news corpus and measuring the media agenda by tagging news articles with issues. The approach relies on an off-the-shelf Latent Dirichlet Allocation topic model, manual labeling of topics, and topic model customization. In preliminary evaluation, the tagger achieves a micro F1-score of 0.85 and outperforms the supervised baselines, suggesting that it could be successfully used for agenda-setting studies.
Agenda setting; Agenda measuring; News media analysis; Topic modeling; Document tagging; Multilabel classification
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Podaci o prilogu
61-66.
2015.
objavljeno
Podaci o matičnoj publikaciji
Proceedings of the 2015 Workshop on Topic Models: Post-Processing and Applications
The Association for Computing Machinery (ACM)
978-1-4503-3784-7
Podaci o skupu
2015 Workshop on Topic Models: Post-Processing and Applications
predavanje
19.10.2015-19.10.2015
Melbourne, Australija