[Script Info] Title: [Events] Format: Layer, Start, End, Style, Name, MarginL, MarginR, MarginV, Effect, Text Dialogue: 0,0:00:00.77,0:00:02.80,Default,,0000,0000,0000,,NARRATOR: Like so many other\Naspects of modern life, Dialogue: 0,0:00:02.80,0:00:05.10,Default,,0000,0000,0000,,the search for a partner has gone online. Dialogue: 0,0:00:05.10,0:00:07.67,Default,,0000,0000,0000,,People everywhere are\Nliking, swiping, winking, Dialogue: 0,0:00:07.67,0:00:09.66,Default,,0000,0000,0000,,in the hopes of finding a match for life, Dialogue: 0,0:00:09.66,0:00:11.61,Default,,0000,0000,0000,,or at least for the night. Dialogue: 0,0:00:11.61,0:00:13.02,Default,,0000,0000,0000,,Dating apps take into account Dialogue: 0,0:00:13.02,0:00:16.35,Default,,0000,0000,0000,,location, age, similar\Ninterests listed in profiles. Dialogue: 0,0:00:16.35,0:00:18.33,Default,,0000,0000,0000,,But the core of the mystique is, Dialogue: 0,0:00:18.33,0:00:20.50,Default,,0000,0000,0000,,how do these apps figure out how desirable Dialogue: 0,0:00:20.50,0:00:24.12,Default,,0000,0000,0000,,you personally might be to a\Npotential match and vice versa? Dialogue: 0,0:00:25.43,0:00:28.21,Default,,0000,0000,0000,,This is Algorithmics, the\Nspace where we explore Dialogue: 0,0:00:28.21,0:00:31.36,Default,,0000,0000,0000,,how invisible computer\Ncontrolled database sets of rules Dialogue: 0,0:00:31.36,0:00:34.42,Default,,0000,0000,0000,,are making decisions for us every day. Dialogue: 0,0:00:34.42,0:00:35.91,Default,,0000,0000,0000,,Let's start with OkCupid, Dialogue: 0,0:00:35.91,0:00:38.02,Default,,0000,0000,0000,,which relies heavily on\Na series of questions Dialogue: 0,0:00:38.02,0:00:40.33,Default,,0000,0000,0000,,to see how well two people match up. Dialogue: 0,0:00:40.33,0:00:41.93,Default,,0000,0000,0000,,OkCupid is pretty transparent Dialogue: 0,0:00:41.93,0:00:44.43,Default,,0000,0000,0000,,about how they calculate\Nmatch percentages. Dialogue: 0,0:00:44.43,0:00:46.55,Default,,0000,0000,0000,,They think of this equation\Nas the probability, Dialogue: 0,0:00:46.55,0:00:48.00,Default,,0000,0000,0000,,two people will get along, Dialogue: 0,0:00:48.00,0:00:49.87,Default,,0000,0000,0000,,and it's calculated based on questions Dialogue: 0,0:00:49.87,0:00:52.01,Default,,0000,0000,0000,,both of you have chosen to answer. Dialogue: 0,0:00:52.01,0:00:55.63,Default,,0000,0000,0000,,For each question, OkCupid asks\Nyou to provide three things, Dialogue: 0,0:00:55.63,0:00:58.81,Default,,0000,0000,0000,,your own answer, how you'd\Nlike your match to answer Dialogue: 0,0:00:58.81,0:01:00.78,Default,,0000,0000,0000,,and how important the question is to you, Dialogue: 0,0:01:00.78,0:01:02.49,Default,,0000,0000,0000,,from irrelevant to very important. Dialogue: 0,0:01:03.44,0:01:06.33,Default,,0000,0000,0000,,OkCupid assigns numerical\Nvalues to these ideas Dialogue: 0,0:01:06.33,0:01:08.18,Default,,0000,0000,0000,,on a scale of zero to 250, Dialogue: 0,0:01:08.18,0:01:10.88,Default,,0000,0000,0000,,and the algorithm assesses\Nhow much your matches answers Dialogue: 0,0:01:10.88,0:01:12.87,Default,,0000,0000,0000,,made you happy and vice versa. Dialogue: 0,0:01:12.87,0:01:16.07,Default,,0000,0000,0000,,[gentle upbeat music] Dialogue: 0,0:01:16.07,0:01:19.93,Default,,0000,0000,0000,,So if your matches answers\Nearned 250 out of 251 Dialogue: 0,0:01:19.93,0:01:22.39,Default,,0000,0000,0000,,possible points based on your preferences, Dialogue: 0,0:01:22.39,0:01:25.37,Default,,0000,0000,0000,,that's 99.6% satisfactory. Dialogue: 0,0:01:25.37,0:01:27.67,Default,,0000,0000,0000,,The same calculation is\Ndone for your answers, Dialogue: 0,0:01:27.67,0:01:29.62,Default,,0000,0000,0000,,compared to your matches preferences. Dialogue: 0,0:01:29.62,0:01:31.60,Default,,0000,0000,0000,,Multiply these two satisfaction numbers, Dialogue: 0,0:01:31.60,0:01:35.12,Default,,0000,0000,0000,,take the square root and\Nthat's your match percentage. Dialogue: 0,0:01:35.12,0:01:36.31,Default,,0000,0000,0000,,The more questions you answer, Dialogue: 0,0:01:36.31,0:01:38.65,Default,,0000,0000,0000,,the more data the\Nalgorithm has to work with, Dialogue: 0,0:01:38.65,0:01:40.30,Default,,0000,0000,0000,,and the more confident it becomes Dialogue: 0,0:01:40.30,0:01:42.00,Default,,0000,0000,0000,,in the matches it presents to you. Dialogue: 0,0:01:42.85,0:01:44.83,Default,,0000,0000,0000,,Then there's Tinder, which prides itself Dialogue: 0,0:01:44.83,0:01:48.69,Default,,0000,0000,0000,,on not requiring a 400\Nquestion registration process. Dialogue: 0,0:01:48.69,0:01:51.36,Default,,0000,0000,0000,,But Tinder is much more\Nclosed mouth than OkCupid Dialogue: 0,0:01:51.36,0:01:52.96,Default,,0000,0000,0000,,about how it calculates matches. Dialogue: 0,0:01:53.81,0:01:55.97,Default,,0000,0000,0000,,Tinder's co-founder did\Nreveal to a fast company Dialogue: 0,0:01:55.97,0:01:58.67,Default,,0000,0000,0000,,that each user has a\Nsecret numerical rating, Dialogue: 0,0:01:58.67,0:02:01.77,Default,,0000,0000,0000,,what the company internally\Ncalls an Elo score. Dialogue: 0,0:02:01.77,0:02:03.41,Default,,0000,0000,0000,,If a lot of people swipe right on you Dialogue: 0,0:02:03.41,0:02:05.72,Default,,0000,0000,0000,,saying they like your profile\Nand want to match with you Dialogue: 0,0:02:05.72,0:02:08.12,Default,,0000,0000,0000,,versus swiping left to\Nskip to the next person, Dialogue: 0,0:02:08.12,0:02:09.81,Default,,0000,0000,0000,,your score will go up. Dialogue: 0,0:02:09.81,0:02:11.46,Default,,0000,0000,0000,,Each swipe is like a vote. Dialogue: 0,0:02:11.46,0:02:14.27,Default,,0000,0000,0000,,This person is more\Ndesirable than that one. Dialogue: 0,0:02:14.27,0:02:17.31,Default,,0000,0000,0000,,Tinder insists that this isn't\Nan attractiveness rating, Dialogue: 0,0:02:17.31,0:02:19.09,Default,,0000,0000,0000,,desirability involves what you wrote Dialogue: 0,0:02:19.09,0:02:20.67,Default,,0000,0000,0000,,in your profile for example. Dialogue: 0,0:02:20.67,0:02:22.64,Default,,0000,0000,0000,,The company also says a lot of factors Dialogue: 0,0:02:22.64,0:02:25.04,Default,,0000,0000,0000,,besides swiping affect your Elo score. Dialogue: 0,0:02:25.04,0:02:27.90,Default,,0000,0000,0000,,A bit like love, the rest is a mystery. Dialogue: 0,0:02:27.90,0:02:30.01,Default,,0000,0000,0000,,Every dating app works\Nslightly differently, Dialogue: 0,0:02:30.01,0:02:31.23,Default,,0000,0000,0000,,but whichever you think gives you Dialogue: 0,0:02:31.23,0:02:32.68,Default,,0000,0000,0000,,the best chance at finding love, Dialogue: 0,0:02:32.68,0:02:35.47,Default,,0000,0000,0000,,this Valentine's Day,\Nremember that your ideal match Dialogue: 0,0:02:35.47,0:02:38.02,Default,,0000,0000,0000,,might very well be the algorithm. Dialogue: 0,0:02:38.02,0:02:41.28,Default,,0000,0000,0000,,[gentle upbeat music] Dialogue: 0,0:02:43.62,0:02:46.08,Default,,0000,0000,0000,,Hey, NBC News fans,\Nthanks for checking out Dialogue: 0,0:02:46.08,0:02:47.47,Default,,0000,0000,0000,,our YouTube channel. Dialogue: 0,0:02:47.47,0:02:50.73,Default,,0000,0000,0000,,Subscribe by clicking on\Nthat button down here, Dialogue: 0,0:02:50.73,0:02:53.08,Default,,0000,0000,0000,,and click on any of the videos over here Dialogue: 0,0:02:53.08,0:02:54.52,Default,,0000,0000,0000,,to watch the latest interviews, Dialogue: 0,0:02:54.52,0:02:57.55,Default,,0000,0000,0000,,show highlights, and digital exclusives. Dialogue: 0,0:02:57.55,0:02:58.55,Default,,0000,0000,0000,,Thanks for watching.