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Extracting Information Nuggets from Disaster- Related Messages in Social Media
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BibTeX
@MISC{Imran_extractinginformation,
author = {Muhammad Imran and Shady Elbassuoni and Carlos Castillo and Fernando Diaz and Patrick Meier},
title = {Extracting Information Nuggets from Disaster- Related Messages in Social Media},
year = {}
}
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Abstract
Microblogging sites such as Twitter can play a vital role in spreading information during “natural ” or man-made disasters. But the volume and velocity of tweets posted during crises today tend to be extremely high, making it hard for disaster-affected communities and professional emergency responders to process the information in a timely manner. Furthermore, posts tend to vary highly in terms of their subjects and usefulness; from messages that are entirely off-topic or personal in nature, to messages containing critical information that augments situational awareness. Finding actionable information can accelerate disaster response and alleviate both property and human losses. In this paper, we describe automatic methods for extracting information from microblog posts. Specifically, we focus on extracting valuable “information nuggets”, brief, self-contained information items relevant to disaster response. Our methods leverage machine learning methods for classifying posts and information extraction. Our results, validated over one large disaster-related dataset, reveal that a careful design can yield an effective system, paving the way for more sophisticated data analysis and visualization systems.
Keyphrases
social medium information nugget disaster related message information extraction method leverage machine disaster-affected community crisis today critical information self-contained information item situational awareness vital role effective system timely manner large disaster-related dataset disaster response man-made disaster human loss microblog post professional emergency responder sophisticated data analysis valuable information nugget visualization system careful design automatic method actionable information
