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Extracting and displaying temporal and geospatial entities from articles on historical events
Abstract This paper discusses a system that extractThis paper discusses a system that extracts and displays temporal and geospatial entities in text. The first task involves identification of all events in a document followed by identification of important events using a classifier. The second task involves identifying named entities associated with the document. In particular, we extract geospatial named entities. We disambiguate the set of geospatial named entities and geocode them to determine the correct coordinates for each place name, often called grounding. We resolve ambiguity based on sentence and article context. Finally, we present a user with the key events and their associated people, places and organizations within a document in terms of a timeline and a map. For purposes of testing, we use Wikipedia articles about historical events, such as those describing wars, battles and invasions. We focus on extracting major events from the articles, although our ideas and tools can be easily used with articles from other sources such as news articles. We use several existing tools such as Evita, Google Maps, publicly available implementations of Support Vector Machines, Hidden Markov Model and Conditional Random Field, and the MIT SIMILE Timeline.Random Field, and the MIT SIMILE Timeline.
Abstractsub This paper discusses a system that extractThis paper discusses a system that extracts and displays temporal and geospatial entities in text. The first task involves identification of all events in a document followed by identification of important events using a classifier. The second task involves identifying named entities associated with the document. In particular, we extract geospatial named entities. We disambiguate the set of geospatial named entities and geocode them to determine the correct coordinates for each place name, often called grounding. We resolve ambiguity based on sentence and article context. Finally, we present a user with the key events and their associated people, places and organizations within a document in terms of a timeline and a map. For purposes of testing, we use Wikipedia articles about historical events, such as those describing wars, battles and invasions. We focus on extracting major events from the articles, although our ideas and tools can be easily used with articles from other sources such as news articles. We use several existing tools such as Evita, Google Maps, publicly available implementations of Support Vector Machines, Hidden Markov Model and Conditional Random Field, and the MIT SIMILE Timeline.Random Field, and the MIT SIMILE Timeline.
Bibtextype article  +
Doi 10.1093/comjnl/bxt112  +
Has author Chasin R. + , Daryl Woodward + , Jeremy Witmer + , Jugal Kalita +
Has extra keyword Conditional random field + , Entity extractions + , Google maps + , Major events + , Named entities + , NAtural language processing + , News articles + , Wikipedia articles + , Hidden Markov models + , Information retrieval + , Tool + , Websites + , Natural language processing systems +
Has keyword Geospatial entity extraction + , Information extraction + , Natural Language Processing + , Temporal extraction +
Issn 104620  +
Issue 3  +
Language English +
Number of citations by publication 0  +
Number of references by publication 0  +
Pages 403–426  +
Published in Computer Journal +
Title Extracting and displaying temporal and geospatial entities from articles on historical events +
Type journal article  +
Volume 57  +
Year 2014 +
Creation dateThis property is a special property in this wiki. 6 November 2014 13:59:55  +
Categories Publications without license parameter  + , Publications without remote mirror parameter  + , Publications without archive mirror parameter  + , Publications without paywall mirror parameter  + , Journal articles  + , Publications without references parameter  + , Publications  +
Modification dateThis property is a special property in this wiki. 6 November 2014 13:59:55  +
DateThis property is a special property in this wiki. 2014  +
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Extracting and displaying temporal and geospatial entities from articles on historical events + Title
 

 

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