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Singapore govt dating app uses Gale-Shapley stable marriage algorithm

466 points · 499 comments · rzk

  1. purplepatrick · · focus · HN ↗
    Cute. Of course, beyond basic deal breakers, neither do people know their preferences (but they think they do), nor do the majority of preference categories actually matter.

    This is a common problem with all dating apps. Specifically, interests, hobbies, daily routines, objectives, etc. have nothing to do with compatibility.

    “We like the same things!” is the compatibility signal of a naive 22-yr old…

    1. alexey-salmin · · focus · HN ↗
      > “We like the same things!” is the compatibility signal of a naive 22-yr old…

      What signals do you suggest? Regardless of whether it's feasible to put them in the dating app.

      1. morkalork · · focus · HN ↗
        The OkCupid guys figured out that it was (potential) that best predicted stable relationships and everything else was just a proxy for that feature. Similar/compatible education level? Just a proxy for income. Similar/compatible hobbies? Guess what, also a proxy for income!
        1. californical · · focus · HN ↗
          As somebody who met my spouse on there, I can confirm that their algorithm was amazing back in the day.

          Though it definitely wasn’t income proxies as the only criteria, it probably was a decent part..

          I also met a couple other people that I had good relationships with on that site. All in the 90%+ range of their compatibility scores. There weren’t many people in those tiers for me though. Any time a 90% match appeared was a big deal, there were only ever a few!

          Anyone I met in the 80% range was usually also pretty great

          Go much below their 80% match score and meeting in person didn’t usually go so well.

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