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|Title:||Online News Event Extraction for Global Crisis Surveillance|
|Authors:||PISKORSKI Jakub; TANEV Hristo; ATKINSON Martin; VAN DER GOOT Erik; ZAVARELLA Vanni|
|Citation:||Transactions on Computational Collective Intelligence vol. 6910 p. 182-212|
|JRC Publication N°:||JRC66720|
|Type:||Articles in Journals|
|Abstract:||This article presents a real-time and multilingual news event extraction system developed at the Joint Research Centre of the Euro- pean Commission. It is capable of accurately and efficiently extracting violent and natural disaster events from online news. In particular, a linguistically relatively lightweight approach is deployed, in which clus- tered news are heavily exploited at all stages of processing. Furthermore, the technique applied for event extraction assumes the inverted-pyramid style of writing news articles, i.e., the most important parts of the story are placed in the beginning and the least important facts are left to- ward the end. The article focuses on the system’s architecture, real-time news clustering, geo-locating and geocoding clusters, event extraction grammar development, adapting the system to the processing of new languages, cluster-level information fusion, visual event tracking, event extraction accuracy evaluation, and detecting event reporting boundaries in news article streams. This article is an extended version of .|
|JRC Institute:||Institute for the Protection and Security of the Citizen|
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