Title
NEREx: Named-Entity Relationship Exploration in Multi-Party Conversations.
Abstract
We present NEREx, an interactive visual analytics approach for the exploratory analysis of verbatim conversational transcripts. By revealing different perspectives on multi-party conversations, NEREx gives an entry point for the analysis through high-level overviews and provides mechanisms to form and verify hypotheses through linked detail-views. Using a tailored named-entity extraction, we abstract important entities into ten categories and extract their relations with a distance-restricted entity-relationship model. This model complies with the often ungrammatical structure of verbatim transcripts, relating two entities if they are present in the same sentence within a small distance window. Our tool enables the exploratory analysis of multi-party conversations using several linked views that reveal thematic and temporal structures in the text. In addition to distant-reading, we integrated close-reading views for a text-level investigation process. Beyond the exploratory and temporal analysis of conversations, NEREx helps users generate and validate hypotheses and perform comparative analyses of multiple conversations. We demonstrate the applicability of our approach on real-world data from the 2016 U.S. Presidential Debates through a qualitative study with three domain experts from political science.
Year
DOI
Venue
2017
10.1111/cgf.13181
Comput. Graph. Forum
Field
DocType
Volume
Data science,Computer science,Entry point,Visual analytics,Named entity,Qualitative research,Sentence
Journal
36
Issue
ISSN
Citations 
3
0167-7055
12
PageRank 
References 
Authors
0.45
26
5
Name
Order
Citations
PageRank
Mennatallah El-Assady112013.73
Rita Sevastjanova2315.02
Bela Gipp343251.77
Daniel A. Keim477041141.60
Christopher Collins5103749.74