https://speakerdeck.com/halfrost 2020-10-20 03:59:20 -0400 Wed, 15 Jan 2020 00:00:00 -0500 https://speakerdeck.com/halfrost/segment-tree-basics https://speakerdeck.com/halfrost/segment-tree-basics Thu, 31 Oct 2019 00:00:00 -0400 https://speakerdeck.com/halfrost/redis-multi-data-center-two-way-synchronization https://speakerdeck.com/halfrost/redis-multi-data-center-two-way-synchronization Tue, 18 Jun 2019 00:00:00 -0400 https://speakerdeck.com/halfrost/redis-design-ideas-and-usage-specifications https://speakerdeck.com/halfrost/redis-design-ideas-and-usage-specifications Fri, 15 Mar 2019 00:00:00 -0400 https://speakerdeck.com/halfrost/golang-message-streaming-practice-in-eleme https://speakerdeck.com/halfrost/golang-message-streaming-practice-in-eleme Tue, 25 Dec 2018 00:00:00 -0500 https://speakerdeck.com/halfrost/sql-practical-optimization https://speakerdeck.com/halfrost/sql-practical-optimization Article is in there: https://github.com/halfrost/Halfrost-Field#-protocol Article is in there: https://github.com/halfrost/Halfrost-Field#-protocol Sun, 15 Jul 2018 00:00:00 -0400 https://speakerdeck.com/halfrost/fundamentals-of-cryptography https://speakerdeck.com/halfrost/fundamentals-of-cryptography I share my practice 《Application of spatial index in geographic service》. The contents are as follows: - How to understand n-dimensional space and n-dimensional space-time - Efficient multi-dimensional spatial point indexing algorithm — Geohash and Google S2 - How to generate CellID in Google S2? - The algorithm of finding LCA recent public ancestor on the quadtree in Google S2 - The magical of Bruyne sequence - How to find the neighbors of Hilbert curve on the quadtree? - How does Google S2 solve the problem of optimal solution in spatial coverage? Article is in there: https://github.com/halfrost/Halfrost-Field#-go I share my practice 《Application of spatial index in geographic service》. The contents are as follows: - How to understand n-dimensional space and n-dimensional space-time - Efficient multi-dimensional spatial point indexing algorithm — Geohash and Google S2 - How to generate CellID in Google S2? - The algorithm of finding LCA recent public ancestor on the quadtree in Google S2 - The magical of Bruyne sequence - How to find the neighbors of Hilbert curve on the quadtree? - How does Google S2 solve the problem of optimal solution in spatial coverage? Article is in there: https://github.com/halfrost/Halfrost-Field#-go Sun, 14 Jan 2018 00:00:00 -0500 https://speakerdeck.com/halfrost/the-practice-of-spatial-index-in-geographic-service https://speakerdeck.com/halfrost/the-practice-of-spatial-index-in-geographic-service Article is in there: https://github.com/halfrost/Halfrost-Field#-machine-learning Article is in there: https://github.com/halfrost/Halfrost-Field#-machine-learning Wed, 08 Nov 2017 00:00:00 -0500 https://speakerdeck.com/halfrost/getting-started-with-machine-learning https://speakerdeck.com/halfrost/getting-started-with-machine-learning Article is in there: https://github.com/halfrost/Halfrost-Field#-ios Article is in there: https://github.com/halfrost/Halfrost-Field#-ios Thu, 15 Jun 2017 00:00:00 -0400 https://speakerdeck.com/halfrost/functional-reactive-programming https://speakerdeck.com/halfrost/functional-reactive-programming Tue, 18 Apr 2017 00:00:00 -0400 https://speakerdeck.com/halfrost/eleme-report https://speakerdeck.com/halfrost/eleme-report Thu, 25 Aug 2016 00:00:00 -0400 https://speakerdeck.com/halfrost/ios-architecture https://speakerdeck.com/halfrost/ios-architecture Article is in there: https://github.com/halfrost/Halfrost-Field/blob/master/contents/iOS/Phabricator/Code%20review%20-%20Phabricator%20Use%20guide%20introduce.md Article is in there: https://github.com/halfrost/Halfrost-Field/blob/master/contents/iOS/Phabricator/Code%20review%20-%20Phabricator%20Use%20guide%20introduce.md Wed, 20 Jan 2016 00:00:00 -0500 https://speakerdeck.com/halfrost/phabricator-introduce https://speakerdeck.com/halfrost/phabricator-introduce