By Evan Miller February 6, 2009 ( Changes ) PROBLEM : You are a web programmer. You have users. Your users rate stuff on your site. You want to put the highest-rated stuff at the top and lowest-rated at the bottom. You need some sort of "score" to sort by. WRONG SOLUTION #1 : Score = (Positive ratings) - (Negative ratings) Why it is wrong : Suppose one item has 600 positive ratings and 400 negative ratings: 60% positive. Suppose item two has 5,500 positive ratings and 4,500 negative ratings: 55% positive. This algorithm puts item two (score = 1000, but only 55% positive) above item one (score = 200, and 60% positive). WRONG. Sites that make this mistake : Urban Dictionary WRONG SOLUTION #2 : Score = Average rating = (Positive ratings) / (Total ratings) Why it is wrong : Average rating works fine if you always have a ton of ratings, but suppose item 1 has 2 positive rati...

Skip to content Sign up Sign in This repository Explore Features Enterprise Blog Watch 179 Star 1,604 Fork 220 donnemartin / data-science-ipython-notebooks /.container /.repohead Code Issues Pull requests Pulse Graphs HTTPS Subversion You can clone with HTTPS or Subversion . Download ZIP /.repository-sidebar Continually updated Data Science Python Notebooks: Spark, Hadoop MapReduce, HDFS, AWS, Kaggle, scikit-learn, matplotlib, pandas, NumPy, SciPy, and various command lines. 406 commits 1 branch 0 releases 1 contributor Python 100.0% Python branch: master Switch branches/tags Branches Tags master Nothing to show Nothing to show data-science-ipython-notebooks / Fixed ...

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Sign up for a GitHub account Sign in All Gists lykkin / gist:9831f8bb88eccd1a61e1 Created July 07, 2015 Code Revisions 1 /.sunken-menu-group /.sunken-menu-contents Embed HTTPS SSH You can clone with HTTPS or SSH . Download Gist /.only-with-full-nav closure based caching View gist:9831f8bb88eccd1a61e1 gistfile1.js Raw File suppressed. Click to show. 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 ' use strict ' function Obj () {} Obj . prototype . getVal = getVal Obj . prototype . clearCache = function clearCachedVal () { console .log ( ' clearing the cache ' ) this .getVal = getVal } function getVal ( x ) { var _val console .log ( ' setting cached data ' ) this .getVal = function g...

This is a dumb hack, we should only have one or the other from the the template context, so only one of the following will be rendered. ...

Skip to content Sign up Sign in This repository Explore Features Enterprise Blog Watch 3 Star 6 Fork 4,745 LarryMad / recipes /.container /.repohead Code Issues Pull requests Pulse Graphs HTTPS Subversion You can clone with HTTPS or Subversion . Download ZIP /.repository-sidebar base sha1: "a6a2f991a1bb60e1dec7c5d68c8393b70ea6f7f6" head sha1: "82f0f00507bb5e64d66ec2fb79bf2ebf49e4b1fc" Loading… Pull request practice #5 Closed brianpchsu wants to merge 4 commits into LarryMad : master from brianpchsu : master +19 −2      Conversation 0 Commits 4 Files changed 2 None yet No milestone No one assigned brianpchsu commented Oct 15, 2014 Hi Larry, this is my...

Skip to content Sign up Sign in This repository Explore Features Enterprise Blog Watch 3 Star 6 Fork 4,745 LarryMad / recipes /.container /.repohead Code Issues Pull requests Pulse Graphs HTTPS Subversion You can clone with HTTPS or Subversion . Download ZIP /.repository-sidebar base sha1: "a6a2f991a1bb60e1dec7c5d68c8393b70ea6f7f6" head sha1: "6c306644cf8a0e4f0ebe0e9a8691c8f7218e2775" Loading… pull request #753 Open tonymayo wants to merge 4 commits into LarryMad : master from tonymayo : master +2 −2      Conversation 0 Commits 4 Files changed 2 None yet No milestone No one assigned tonymayo commented Jul 5, 2015 No description provided. [...

This is a dumb hack, we should only have one or the other from the the template context, so only one of the following will be rendered. ...

Skip to content Sign up Sign in This repository Explore Features Enterprise Blog Watch 3 Star 6 Fork 4,745 LarryMad / recipes /.container /.repohead Code Issues Pull requests Pulse Graphs HTTPS Subversion You can clone with HTTPS or Subversion . Download ZIP /.repository-sidebar Loading… New pull request Issues Pull requests Labels Milestones 361 Open 396 Closed Author Filter by author Labels Filter by label Milestones Filter by milestone Assignee Filter by who's assigned Sort Sort by Newest Oldest Most commented Least commented Recently updated Least recently updated Different oil #757 opened Jul 5, 2015 by buggady ...

Search Images Maps Play YouTube News Gmail Drive More » Send Feedback | Web History | Help | Sign in Home Home Profile People Photos Collections Communities Events Hangouts Pages Settings Feedback Help · Region Privacy · Terms · Maps Terms Start a hangout Richard Green Mathematics Richard Green Shared publicly - 2015-07-03 Why your friends, on average, have more friends than you do The friendship paradox is the observation that your friends, on average, have more friends than you do. This phenomenon, which was first observed by the sociologist Scott L. Feld in 1991, is mathematically provable, even though it contradicts most people's intuition that they have more friends than their friends do. Wikipedia gives a nice intuitive explanation for this phenomenon: People with more friends are more likely to be your friend in the first place; that is, they have a higher propensity to...

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