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Title:      A SEMANTIC CENTRALITY MEASURE FOR FINDING THE MOST TRUSTWORTHY ACCOUNT
Author(s):      Myriam C. Traub, Wilhelm Walter, Maarten H. Lamers
ISBN:      978-972-8939-19-9
Editors:      Hans Weghorn, Jörg Roth and Pedro Isaías
Year:      2010
Edition:      Single
Keywords:      Natural language processing, semantic similarity, text similarity.
Type:      Full Paper
First Page:      117
Last Page:      125
Language:      English
Cover:      cover          
Full Contents:      click to dowload Download
Paper Abstract:      We propose an algorithmic approach for ranking of differing textual descriptions (accounts) of the same event or story according to their likeliness to best describe the source. Application domains include the ranking of eyewitness reports, historical accounts, and news reports. For this, we developed the concept of „semantic centrality“ as a measure of how central a text is among a collection of texts, in terms of semantic overlap or similarity. This measure is based on natural language processing theory, as well as graph theory. Using three different collections of humanly generated texts (gathered through a recall task, „Chinese Whispers“ task, and real-world news reports), we evaluated the proposed method for ranking textual accounts by their trustworthiness to describe source events. In one experiment algorithmic ranking is compared to human ranking. Results indicate that semantic centrality as a measure for trustworthiness of textual accounts is promising and deserves further research attention.
   

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