Description-based Post-hoc Explanation for Twitter List Recommendations

Twitter List recommender systems can generate highly accurate recommendations, but since they employ heterogeneous information of users and Lists and apply complex prediction models, they cannot provide easy understandable intrinsic explanations. To address this limitation, Twitter List descriptions...

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Main Authors: Havva Alizadeh Noughabi, Behshid Behkamal, Mohsen Kahani
Format: Article
Language:English
Published: Ferdowsi University of Mashhad 2024-12-01
Series:Computer and Knowledge Engineering
Subjects:
Online Access:https://cke.um.ac.ir/article_45395_1c89aae7af5bb5910ceec68253f32739.pdf
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author Havva Alizadeh Noughabi
Behshid Behkamal
Mohsen Kahani
author_facet Havva Alizadeh Noughabi
Behshid Behkamal
Mohsen Kahani
author_sort Havva Alizadeh Noughabi
collection DOAJ
description Twitter List recommender systems can generate highly accurate recommendations, but since they employ heterogeneous information of users and Lists and apply complex prediction models, they cannot provide easy understandable intrinsic explanations. To address this limitation, Twitter List descriptions can play a critical role in providing post-hoc explanations that help users make informed decisions. In this paper, we propose an explanation model to provide relevant and informative explanations for recommended Lists by automatically generating descriptions for Twitter Lists. The model selects the most informative tweets from a List as its description to inform users more with the recommended List that positively contributes to the user experience. More specifically, the explanation model incorporates three categories of features: content relevance features, tweet-specific features, and publisher’s authority features that are used in a learning to rank model to rank the List’s tweets in terms of their informativeness. By conducting experiments on a Twitter dataset, we have shown that the proposed model provides useful explanations for the Lists that are recommended to users, while upholding parity in recommendation performance.
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institution Kabale University
issn 2538-5453
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publishDate 2024-12-01
publisher Ferdowsi University of Mashhad
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spelling doaj-art-66f3af40f2fe4b5a94f935c26bf6ff082025-01-19T04:04:23ZengFerdowsi University of MashhadComputer and Knowledge Engineering2538-54532717-41232024-12-0172435010.22067/cke.2024.85185.110745395Description-based Post-hoc Explanation for Twitter List RecommendationsHavva Alizadeh Noughabi0Behshid Behkamal1Mohsen Kahani2Department of Computer Engineering, Ferdowsi University of Mashhad, Mashhad, Iran.Department of Computer Engineering, Ferdowsi University of Mashhad, Mashhad, Iran.Department of Computer Engineering, Ferdowsi University of Mashhad, Mashhad, Iran.Twitter List recommender systems can generate highly accurate recommendations, but since they employ heterogeneous information of users and Lists and apply complex prediction models, they cannot provide easy understandable intrinsic explanations. To address this limitation, Twitter List descriptions can play a critical role in providing post-hoc explanations that help users make informed decisions. In this paper, we propose an explanation model to provide relevant and informative explanations for recommended Lists by automatically generating descriptions for Twitter Lists. The model selects the most informative tweets from a List as its description to inform users more with the recommended List that positively contributes to the user experience. More specifically, the explanation model incorporates three categories of features: content relevance features, tweet-specific features, and publisher’s authority features that are used in a learning to rank model to rank the List’s tweets in terms of their informativeness. By conducting experiments on a Twitter dataset, we have shown that the proposed model provides useful explanations for the Lists that are recommended to users, while upholding parity in recommendation performance.https://cke.um.ac.ir/article_45395_1c89aae7af5bb5910ceec68253f32739.pdfexplainable recommender systemspost-hoc explanationdescription generationtwitter lists
spellingShingle Havva Alizadeh Noughabi
Behshid Behkamal
Mohsen Kahani
Description-based Post-hoc Explanation for Twitter List Recommendations
Computer and Knowledge Engineering
explainable recommender systems
post-hoc explanation
description generation
twitter lists
title Description-based Post-hoc Explanation for Twitter List Recommendations
title_full Description-based Post-hoc Explanation for Twitter List Recommendations
title_fullStr Description-based Post-hoc Explanation for Twitter List Recommendations
title_full_unstemmed Description-based Post-hoc Explanation for Twitter List Recommendations
title_short Description-based Post-hoc Explanation for Twitter List Recommendations
title_sort description based post hoc explanation for twitter list recommendations
topic explainable recommender systems
post-hoc explanation
description generation
twitter lists
url https://cke.um.ac.ir/article_45395_1c89aae7af5bb5910ceec68253f32739.pdf
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AT behshidbehkamal descriptionbasedposthocexplanationfortwitterlistrecommendations
AT mohsenkahani descriptionbasedposthocexplanationfortwitterlistrecommendations