Building a healthier feed: Private location trace intersection driven feed recommendations

• URL: http://arxiv.org/abs/2210.01927v2
• Date: Wed, 20 Sep 2023 20:37:32 GMT
• Title: Building a healthier feed: Private location trace intersection driven feed recommendations
• Authors: Tobin South, Nick Lothian, Alex "Sandy" Pentland
• Abstract summary: We propose a consent-first private information sharing paradigm for driving social feeds from users' personal private data. This work presents a novel technique for designing feeds that represent real offline social connections through private set intersections.
• Score: 6.913190961680716
• License: http://creativecommons.org/licenses/by-sa/4.0/
• Abstract: The physical environment you navigate strongly determines which communities and people matter most to individuals. These effects drive both personal access to opportunities and the social capital of communities, and can often be observed in the personal mobility traces of individuals. Traditional social media feeds underutilize these mobility-based features, or do so in a privacy exploitative manner. Here we propose a consent-first private information sharing paradigm for driving social feeds from users' personal private data, specifically using mobility traces. This approach designs the feed to explicitly optimize for integrating the user into the local community and for social capital building through leveraging mobility trace overlaps as a proxy for existing or potential real-world social connections, creating proportionality between whom a user sees in their feed, and whom the user is likely to see in person. These claims are validated against existing social-mobility data, and a reference implementation of the proposed algorithm is built for demonstration. In total, this work presents a novel technique for designing feeds that represent real offline social connections through private set intersections requiring no third party, or public data exposure.

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