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SIGIR '93 Proceedings of the 16th annual international ACM SIGIR conference on Research and development in information retrieval
A System for new event detection
Proceedings of the 26th annual international ACM SIGIR conference on Research and development in informaion retrieval
REES: a large-scale relation and event extraction system
ANLC '00 Proceedings of the sixth conference on Applied natural language processing
Counter-training in discovery of semantic patterns
ACL '03 Proceedings of the 41st Annual Meeting on Association for Computational Linguistics - Volume 1
HLT '91 Proceedings of the workshop on Speech and Natural Language
CUTS: CUrvature-based development pattern analysis and segmentation for blogs and other Text Streams
Proceedings of the seventeenth conference on Hypertext and hypermedia
Real-time event extraction for infectious disease outbreaks
HLT '02 Proceedings of the second international conference on Human Language Technology Research
Real-Time News Event Extraction for Global Crisis Monitoring
NLDB '08 Proceedings of the 13th international conference on Natural Language and Information Systems: Applications of Natural Language to Information Systems
Near real time information mining in multilingual news
Proceedings of the 18th international conference on World wide web
Event Extraction for Italian Using a Cascade of Finite-State Grammars
Proceedings of the 2009 conference on Finite-State Methods and Natural Language Processing: Post-proceedings of the 7th International Workshop FSMNLP 2008
Cluster-Centric Approach to News Event Extraction
Proceedings of the 2008 conference on New Trends in Multimedia and Network Information Systems
Exploring Curvature-Based Topic Development Analysis for Detecting Event Reporting Boundaries
Aspects of Natural Language Processing
Automatically constructing a dictionary for information extraction tasks
AAAI'93 Proceedings of the eleventh national conference on Artificial intelligence
Real-time text mining in multilingual news for the creation of a pre-frontier intelligence picture
ACM SIGKDD Workshop on Intelligence and Security Informatics
Frontex real-time news event extraction framework
Proceedings of the 17th ACM SIGKDD international conference on Knowledge discovery and data mining
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This article presents a real-time and multilingual news event extraction system developed at the Joint Research Centre of the European 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 clustered 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 toward 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 [20].