Privacy Customization in a Social Sharing Tool

Where Academic Publications Meet Social Platforms

Julian Fietkau

University of the Bundeswehr Munich

Laura Stojko

University of the Bundeswehr Munich

Mensch und Computer 2025

ABIS 2025 – International Workshop on Personalization and Recommendation

31 Aug 2025

RecorddataAPIFollowRecordupdatesWebsite

Privacy Settings: ORCID

  • Record contents: publications, projects, employment history, biography, research interests, web links, …
  • Visibility setting for each item (+ default for new items):
    Set visibility for: This item only. Everyone, Trusted parties, Only me. More information on ORCID visibility settings.

Privacy Settings: Encyclia

Which of the following parts of your ORCID record should be visible on your Encyclia account? Note: only the fields that you have marked as “Public” on your ORCID record will be visible to Encyclia. Biography, Keywords, E-mail addresses, …Who should be allowed to access your account? Decide who is allowed to read and interact with your Encyclia account: by default, the content of your account can be accessed from anywhere. You can use the following settings to block a subset of Fediverse servers from accessing it, or to restrict access to specific servers. Public: Your Encyclia account is available publicly and anonymously, through ActivityPub and on this website. Block list: Your Encyclia account is not available anonymously via ActivityPub, requests for it must be signed (“authorized fetch”). Servers on your block list will be unable to access it. Your account is still available to anyone reading it anonymously on this website. Your block list: (…) Allow list: Your Encyclia account is not available anonymously via ActivityPub, requests for it must be signed (“authorized fetch”). Only servers on your allow list will be able to access it. It is additionally hidden from anonymous access via this website. Your allow list: (…)Opt your ORCID record out of Encyclia. This setting fully opts your ORCID record out of being bridged into the Fediverse. If your account has never been requested through Encyclia, this opt-out will prevent it from being created. If an Encyclia account was already created for your ORCID record, it will be deactivated and your personal information will be removed. Deactivating your bridged account …

Cascading Privacy

Conceptualizing Privacy Personalization

  • Adaptivity ↔ adaptability spectrum (Oppermann et al., 1997):
    • Provide adaptivity by default, flip to adaptability if desired
  • Personalization classification scheme (Fan & Poole, 2006):
    • What is personalized? ➙ privacy settings
    • To whom to personalize? ➙ individual ORCID record owners
    • Who does the personalization? ➙ implicit personalization (by Encyclia) by default, explicit personalization (targeted adjustments) if desired
  • Cascading privacy, as shown here, appears to not be well-represented in the existing literature about personalization.


@julian@fietkau.social

https://fietkau.science/privacy_customization_social_academic_publications