Building a healthier feed: Private location trace intersection driven feed recommendations · HackerPapers discussionshttps://hackerpaper.kaipfister.de/p/2210.01927/Collected HN comments and submissions linking this paper.enMon, 02 Nov 2026 11:16:22 GMTBuilding a healthier feed: Private location trace intersection driven feed recommendations — mentioned by nlhttps://news.ycombinator.com/item?id=33400887urn:hackerpapers:mention:2210.01927:33400887Mon, 31 Oct 2022 01:14:06 GMT<p>There are other techniques that aren&#x27;t generally included in the &quot;Zero Knowledge Proofs&quot; set of techniques that are perhaps more practical for general development. For example, I find private set intersection[1] as implemented by OpenMined a really useful primitive a bunch of privacy enhancing applications can be built on top of. My colleagues and I recently published a pre-print[2] showing how to use this for sharing locations you and another person have had in common, without being able to see other locations. The paper talks about a social network built around this but I also think there…</p><p><a href="https://hackerpaper.kaipfister.de/p/2210.01927/">Paper and discussion history</a>. A mention is not an endorsement.</p>cs.CY