{"guid":"706f4ad5-8d29-57df-888c-96e1d5d3d992","title":"Some Useful Maths","subtitle":null,"slug":"emf2022-129-some-useful-maths","link":"https://c3voc.de","description":"4 lightning talks about different mathematical subjects\n1. *A tip for when to take risks in board games and in life*. I will give an insight into how Google's AlphaGo AI chooses its next move, and give an example of a game that seems biased against you, but you actually have a slight advantage.\n2. *Teaching a robot to tell jokes*. I will introduce the concept of factor graphs and describe an application of them to joke generation.\n3. *The twitter bot that is playing the longest possible game of chess*. The World Chess Federation has some rules to prevent games from going on forever. I will outline a proposal by Tom Murphy VII for the longest possible legal chess game, and show the Twitter bot that I made to celebrate this achievement.\n4. *A little theory of abundant numbers*. Abundant numbers, e.g. 12, 60, 360, are useful as they have many factors. I will show you how common these numbers are and how to find them.","original_language":"eng","persons":["Alexander Bolton"],"tags":["emf2022","129","2022"],"view_count":122,"promoted":false,"date":"2022-06-04T16:20:00.000+02:00","release_date":"2024-01-07T00:00:00.000+01:00","updated_at":"2026-01-31T13:15:08.749+01:00","length":1056,"duration":1056,"thumb_url":"https://static.media.ccc.de/media/events/emf/2022/129-706f4ad5-8d29-57df-888c-96e1d5d3d992.jpg","poster_url":"https://static.media.ccc.de/media/events/emf/2022/129-706f4ad5-8d29-57df-888c-96e1d5d3d992_preview.jpg","timeline_url":"https://static.media.ccc.de/media/events/emf/2022/129-706f4ad5-8d29-57df-888c-96e1d5d3d992.timeline.jpg","thumbnails_url":"https://static.media.ccc.de/media/events/emf/2022/129-706f4ad5-8d29-57df-888c-96e1d5d3d992.thumbnails.vtt","frontend_link":"https://media.ccc.de/v/emf2022-129-some-useful-maths","url":"https://api.media.ccc.de/public/events/706f4ad5-8d29-57df-888c-96e1d5d3d992","conference_title":"Electromagnetic Field 2022","conference_url":"https://api.media.ccc.de/public/conferences/emf2022","related":[],"recordings":[{"size":79,"length":1056,"mime_type":"video/webm","language":"eng","filename":"emf2022-129-eng-Some_Useful_Maths_webm-hd.webm","state":"new","folder":"webm-hd","high_quality":true,"width":1920,"height":1080,"updated_at":"2024-01-07T23:08:05.796+01:00","recording_url":"https://cdn.media.ccc.de/events/emf/2022/webm-hd/emf2022-129-eng-Some_Useful_Maths_webm-hd.webm","url":"https://api.media.ccc.de/public/recordings/74206","event_url":"https://api.media.ccc.de/public/events/706f4ad5-8d29-57df-888c-96e1d5d3d992","conference_url":"https://api.media.ccc.de/public/conferences/emf2022"},{"size":30,"length":1056,"mime_type":"video/mp4","language":"eng","filename":"emf2022-129-eng-Some_Useful_Maths_sd.mp4","state":"new","folder":"h264-sd","high_quality":false,"width":720,"height":576,"updated_at":"2024-01-07T10:22:35.066+01:00","recording_url":"https://cdn.media.ccc.de/events/emf/2022/h264-sd/emf2022-129-eng-Some_Useful_Maths_sd.mp4","url":"https://api.media.ccc.de/public/recordings/74106","event_url":"https://api.media.ccc.de/public/events/706f4ad5-8d29-57df-888c-96e1d5d3d992","conference_url":"https://api.media.ccc.de/public/conferences/emf2022"},{"size":16,"length":1056,"mime_type":"audio/mpeg","language":"eng","filename":"emf2022-129-eng-Some_Useful_Maths_mp3.mp3","state":"new","folder":"mp3","high_quality":false,"width":0,"height":0,"updated_at":"2024-01-07T09:31:04.327+01:00","recording_url":"https://cdn.media.ccc.de/events/emf/2022/mp3/emf2022-129-eng-Some_Useful_Maths_mp3.mp3","url":"https://api.media.ccc.de/public/recordings/73970","event_url":"https://api.media.ccc.de/public/events/706f4ad5-8d29-57df-888c-96e1d5d3d992","conference_url":"https://api.media.ccc.de/public/conferences/emf2022"},{"size":10,"length":1056,"mime_type":"audio/opus","language":"eng","filename":"emf2022-129-eng-Some_Useful_Maths_opus.opus","state":"new","folder":"opus","high_quality":false,"width":0,"height":0,"updated_at":"2024-01-07T09:30:35.417+01:00","recording_url":"https://cdn.media.ccc.de/events/emf/2022/opus/emf2022-129-eng-Some_Useful_Maths_opus.opus","url":"https://api.media.ccc.de/public/recordings/73969","event_url":"https://api.media.ccc.de/public/events/706f4ad5-8d29-57df-888c-96e1d5d3d992","conference_url":"https://api.media.ccc.de/public/conferences/emf2022"},{"size":36,"length":1056,"mime_type":"video/webm","language":"eng","filename":"emf2022-129-eng-Some_Useful_Maths_webm-sd.webm","state":"new","folder":"webm-sd","high_quality":false,"width":720,"height":576,"updated_at":"2024-01-07T05:37:05.049+01:00","recording_url":"https://cdn.media.ccc.de/events/emf/2022/webm-sd/emf2022-129-eng-Some_Useful_Maths_webm-sd.webm","url":"https://api.media.ccc.de/public/recordings/73852","event_url":"https://api.media.ccc.de/public/events/706f4ad5-8d29-57df-888c-96e1d5d3d992","conference_url":"https://api.media.ccc.de/public/conferences/emf2022"},{"size":65,"length":1056,"mime_type":"video/mp4","language":"eng","filename":"emf2022-129-eng-Some_Useful_Maths_hd.mp4","state":"new","folder":"h264-hd","high_quality":true,"width":1920,"height":1080,"updated_at":"2024-01-07T00:34:32.872+01:00","recording_url":"https://cdn.media.ccc.de/events/emf/2022/h264-hd/emf2022-129-eng-Some_Useful_Maths_hd.mp4","url":"https://api.media.ccc.de/public/recordings/73773","event_url":"https://api.media.ccc.de/public/events/706f4ad5-8d29-57df-888c-96e1d5d3d992","conference_url":"https://api.media.ccc.de/public/conferences/emf2022"}]}