Searched for: author%3A%22Najafian%2C+S.%22
(1 - 11 of 11)
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Musick, Geoff (author), Duan, Wen (author), Najafian, S. (author), Sengupta, Subhasree (author), Flathmann, Christopher (author), Knijnenburg, Bart (author), McNeese, Nathan (author)
Newly-formed teams often encounter the challenge of members coming together to collaborate on a project without prior knowledge of each other’s working and communication styles. This lack of familiarity can lead to conflicts and misunderstandings, hindering effective teamwork. Derived from research in social recommender systems, team...
journal article 2024
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Najafian, S. (author)
My thesis investigates what makes good explanations for group recommendations, considering the privacy concerns of group members. Let’s give an example. Have you ever been to lunch with other colleagues on a business trip? Do you recall how long it took you to pick a restaurant? In these situations, recommender systems could help people decide,...
doctoral thesis 2023
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Barile, Francesco (author), Draws, T.A. (author), Inel, Oana (author), Rieger, A. (author), Najafian, S. (author), Ebrahimi Fard, Amir (author), Hada, Rishav (author), Tintarev, N. (author)
Social choice aggregation strategies have been proposed as an explainable way to generate recommendations to groups of users. However, it is not trivial to determine the best strategy to apply for a specific group. Previous work highlighted that the performance of a group recommender system is affected by the internal diversity of the group...
journal article 2023
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Najafian, S. (author), Draws, T.A. (author), Barile, Francesco (author), Tkalcic, Marko (author), Yang, J. (author), Tintarev, N. (author)
Recent research has shown that explanations serve as an important means to increase transparency in group recommendations while also increasing users' privacy concerns. However, it is currently unclear what personal and contextual factors affect users' privacy concerns about various types of personal information. This paper studies the effect...
conference paper 2021
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Najafian, S. (author), Delic, Amra (author), Tkalcic, Marko (author), Tintarev, N. (author)
Explanations can help users to better understand why items have been recommended. Additionally, explanations for group recommender systems need to consider further goals than single-user recommender systems. For example, we need to balance group members' need for privacy with their need for transparency, since a transparent explanation might...
conference paper 2021
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Najafian, S. (author)
In some scenarios, like music or tourism, people often consume items in groups. However, reaching a consensus is difficult as different members of the group may have highly diverging tastes. To keep the rest of the group satisfied, an individual might need to be confronted occasionally with items they do not like. In this context, presenting an...
conference paper 2020
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Najafian, S. (author), Inel, O. (author), Tintarev, N. (author)
Explanations can be used to supply transparency in recommender systems (RSs). However, when presenting a shared explanation to a group, we need to balance users' need for privacy with their need for transparency. This is particularly challenging when group members have highly diverging tastes and individuals are confronted with items they do not...
conference paper 2020
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Najafian, S. (author), Herzog, Daniel (author), Qiu, S. (author), Inel, O. (author), Tintarev, N. (author)
Most recommender systems propose items to individual users. However, in domains such as tourism, people often consume items in groups rather than individually. Different individual preferences in such a group can be difficult to resolve, and often compromises need to be made. Social choice strategies can be used to aggregate the preferences of...
conference paper 2020
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Sullivan, Emily (author), Bountouridis, D. (author), Harambam, Jaron J. (author), Najafian, S. (author), Loecherbach, Felicia (author), Makhortykh, Mykola (author), Kelen, Domokos (author), Wilkinson, Daricia (author), Graus, David (author), Tintarev, N. (author)
Personalized content provided by recommender systems is an integral part of the current online news reading experience. However, news recommender systems are criticized for their'black-box' approach to data collection and processing, and for their lack of explainability and transparency. This paper focuses on explaining user profiles...
conference paper 2019
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Kapcak, Öykü (author), Spagnoli, Simone (author), Robbemond, Vincent (author), Vadali, Soumitri (author), Najafian, S. (author), Tintarev, N. (author)
When a group is traveling together it is challenging to recommendan itinerary consisting of several points of interest (POIs). Thepreferences of individual group members often diverge, but it isimportant to keep everyone in the group satisfied during the entiretrip. We propose a method to consider the preferences of all thepeople in the group....
conference paper 2018
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Najafian, S. (author), Tintarev, N. (author)
In some scenarios, like music, people often consume items in groups. However, reaching a consensus is difficult, and often compromises need to be made. Such compromises can potentially help users expand their tastes. They can also lead to outright rejection of the recommended items. One way to avoid this is to explain recommendations that are...
conference paper 2018
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