Using face detection in photographs and cluster analysis to support exploration of social relationships between historical personages in a biographical database

Background. The Taiwan Biographical Database (TBDB) assembles biographical information of historical personages in Taiwan. It is a digital-humanities-oriented system that supports relational database operations, fulltext search, social network analysis, and geographic information system functions...

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Main Authors: Sie, Shun-Hong, Ke, Hao-Ren, Chang, Su-Bing
Other Authors: National Taiwan Normal University
Format: Journal Article
Language:English
Published: 2022
Subjects:
Online Access:https://hdl.handle.net/10356/154748
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author Sie, Shun-Hong
Ke, Hao-Ren
Chang, Su-Bing
author2 National Taiwan Normal University
author_facet National Taiwan Normal University
Sie, Shun-Hong
Ke, Hao-Ren
Chang, Su-Bing
author_sort Sie, Shun-Hong
collection NTU
description Background. The Taiwan Biographical Database (TBDB) assembles biographical information of historical personages in Taiwan. It is a digital-humanities-oriented system that supports relational database operations, fulltext search, social network analysis, and geographic information system functions. Objectives.Through semi-automatic named entity recognition from the fulltext of biographies, TBDB assists historians to construct networks of social relationships. However, the fulltext of biographies may not describe all social relationships. Taking advantage of the fact that historical photographs were usually taken on formal occasions, historical photographs may be exploited to uncover additional relationships. This paper describes and evaluates a face detection function in TBDB that utilizes the OpenCV Library to detect faces of historical persons in old photographs. Furthermore, it employs hierarchical agglomerative clustering to combine fragmentary social networks. Results. An experiment using 45 historical photographs found that the face detection function achieved an average recall of 98% recall, but with low precision. To address the low precision rate, a user interface has been implemented in TBDB to facilitate review and deletion of false-positive faces in the photographs. Furthermore, cluster analysis is used to integrate social relationships found in biographies, those detected from historical photographs, and even relationships harvested from external sources, to produce comprehensive social networks for historical research.
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spelling ntu-10356/1547482022-01-12T20:10:23Z Using face detection in photographs and cluster analysis to support exploration of social relationships between historical personages in a biographical database Sie, Shun-Hong Ke, Hao-Ren Chang, Su-Bing National Taiwan Normal University Library and information science Background. The Taiwan Biographical Database (TBDB) assembles biographical information of historical personages in Taiwan. It is a digital-humanities-oriented system that supports relational database operations, fulltext search, social network analysis, and geographic information system functions. Objectives.Through semi-automatic named entity recognition from the fulltext of biographies, TBDB assists historians to construct networks of social relationships. However, the fulltext of biographies may not describe all social relationships. Taking advantage of the fact that historical photographs were usually taken on formal occasions, historical photographs may be exploited to uncover additional relationships. This paper describes and evaluates a face detection function in TBDB that utilizes the OpenCV Library to detect faces of historical persons in old photographs. Furthermore, it employs hierarchical agglomerative clustering to combine fragmentary social networks. Results. An experiment using 45 historical photographs found that the face detection function achieved an average recall of 98% recall, but with low precision. To address the low precision rate, a user interface has been implemented in TBDB to facilitate review and deletion of false-positive faces in the photographs. Furthermore, cluster analysis is used to integrate social relationships found in biographies, those detected from historical photographs, and even relationships harvested from external sources, to produce comprehensive social networks for historical research. Published version This work is a partial result of a project funded by the Ministry of Science and Technology (MOST 107-2410-H-003-142 -MY2). 2022-01-06T05:07:52Z 2022-01-06T05:07:52Z 2021 Journal Article Sie, S., Ke, H. & Chang, S. (2021). Using face detection in photographs and cluster analysis to support exploration of social relationships between historical personages in a biographical database. Library and Information Science Research E-Journal, 31(1), 42-55. https://dx.doi.org/10.32655/LIBRES.2021.1.4 1058-6768 https://hdl.handle.net/10356/154748 10.32655/LIBRES.2021.1.4 1 31 42 55 en Library and Information Science Research E-Journal © 2021 Shun-Hong Sie, Hao-Ren Ke and Su-Bing Chang. All rights reserved. application/pdf
spellingShingle Library and information science
Sie, Shun-Hong
Ke, Hao-Ren
Chang, Su-Bing
Using face detection in photographs and cluster analysis to support exploration of social relationships between historical personages in a biographical database
title Using face detection in photographs and cluster analysis to support exploration of social relationships between historical personages in a biographical database
title_full Using face detection in photographs and cluster analysis to support exploration of social relationships between historical personages in a biographical database
title_fullStr Using face detection in photographs and cluster analysis to support exploration of social relationships between historical personages in a biographical database
title_full_unstemmed Using face detection in photographs and cluster analysis to support exploration of social relationships between historical personages in a biographical database
title_short Using face detection in photographs and cluster analysis to support exploration of social relationships between historical personages in a biographical database
title_sort using face detection in photographs and cluster analysis to support exploration of social relationships between historical personages in a biographical database
topic Library and information science
url https://hdl.handle.net/10356/154748
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