Utilizing Structural Network Positions to Diversify People Recommendations on Twitter

Social recommender systems, such as “Who to follow” on Twitter, utilize approaches that recommend friends of a friend or interest-wise similar people. Such algorithmic approaches have been criticized for resulting in filter bubbles and echo chambers, calling for diversity-enhancing recommendation st...

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Main Authors: Ekaterina Olshannikova, Erjon Skenderi, Thomas Olsson, Sami Koivunen, Jukka Huhtamäki
Format: Article
Language:English
Published: Wiley 2022-01-01
Series:Advances in Human-Computer Interaction
Online Access:http://dx.doi.org/10.1155/2022/6584394
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author Ekaterina Olshannikova
Erjon Skenderi
Thomas Olsson
Sami Koivunen
Jukka Huhtamäki
author_facet Ekaterina Olshannikova
Erjon Skenderi
Thomas Olsson
Sami Koivunen
Jukka Huhtamäki
author_sort Ekaterina Olshannikova
collection DOAJ
description Social recommender systems, such as “Who to follow” on Twitter, utilize approaches that recommend friends of a friend or interest-wise similar people. Such algorithmic approaches have been criticized for resulting in filter bubbles and echo chambers, calling for diversity-enhancing recommendation strategies. Consequently, this article proposes a social diversification strategy for recommending potentially relevant people based on three structural positions in egocentric networks: dormant ties, mentions of mentions, and community membership. In addition to describing our analytical approach, we report an experiment with 39 Twitter users who evaluated 72 recommendations from each proposed network structural position altogether. The users were able to identify relevant connections from all recommendation groups. Yet, perceived familiarity had a strong effect on perceptions of relevance and willingness to follow-up on the recommendations. The proposed strategy contributes to the design of a people recommender system, which exposes users to diverse recommendations and facilitates new social ties in online social networks. In addition, we advance user-centered evaluation methods by proposing measures for subjective perceptions of people recommendations.
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institution Kabale University
issn 1687-5907
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publishDate 2022-01-01
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spelling doaj-art-c325e5b6575d42ea8b659c321f39e3af2025-02-03T00:59:06ZengWileyAdvances in Human-Computer Interaction1687-59072022-01-01202210.1155/2022/6584394Utilizing Structural Network Positions to Diversify People Recommendations on TwitterEkaterina Olshannikova0Erjon Skenderi1Thomas Olsson2Sami Koivunen3Jukka Huhtamäki4Faculty of Information Technology and Communication StudiesDepartment of Industrial and Information ManagementFaculty of Information Technology and Communication StudiesFaculty of Information Technology and Communication StudiesDepartment of Industrial and Information ManagementSocial recommender systems, such as “Who to follow” on Twitter, utilize approaches that recommend friends of a friend or interest-wise similar people. Such algorithmic approaches have been criticized for resulting in filter bubbles and echo chambers, calling for diversity-enhancing recommendation strategies. Consequently, this article proposes a social diversification strategy for recommending potentially relevant people based on three structural positions in egocentric networks: dormant ties, mentions of mentions, and community membership. In addition to describing our analytical approach, we report an experiment with 39 Twitter users who evaluated 72 recommendations from each proposed network structural position altogether. The users were able to identify relevant connections from all recommendation groups. Yet, perceived familiarity had a strong effect on perceptions of relevance and willingness to follow-up on the recommendations. The proposed strategy contributes to the design of a people recommender system, which exposes users to diverse recommendations and facilitates new social ties in online social networks. In addition, we advance user-centered evaluation methods by proposing measures for subjective perceptions of people recommendations.http://dx.doi.org/10.1155/2022/6584394
spellingShingle Ekaterina Olshannikova
Erjon Skenderi
Thomas Olsson
Sami Koivunen
Jukka Huhtamäki
Utilizing Structural Network Positions to Diversify People Recommendations on Twitter
Advances in Human-Computer Interaction
title Utilizing Structural Network Positions to Diversify People Recommendations on Twitter
title_full Utilizing Structural Network Positions to Diversify People Recommendations on Twitter
title_fullStr Utilizing Structural Network Positions to Diversify People Recommendations on Twitter
title_full_unstemmed Utilizing Structural Network Positions to Diversify People Recommendations on Twitter
title_short Utilizing Structural Network Positions to Diversify People Recommendations on Twitter
title_sort utilizing structural network positions to diversify people recommendations on twitter
url http://dx.doi.org/10.1155/2022/6584394
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