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A comment on Show HN: Find members of Congress with similar voting records. Parent comment

Re:Show HN: Find members of Congress with similar voting rec... by Retric on Friday October 18, 2013 @07:19PM (#6574595)
It's based on how similar someone is to someone else and some people have closer matches than others. Fictitious Example where your listing top 5:

  Adam and Bob are a 80% match.
  Bob and Ted are a 90% match.
  Adam has 1 match better than 75%, but Bob has 5 matches better than 85%.
Thus Adam links to Bob as his #1, but Bob does not link to Adam in his top 5.
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Re:Show HN: Find members of Congress with similar voting rec... by nealb on Saturday October 19, 2013 @01:22AM (#6575456)
yep! for a great example, try out Rush Holt (http://www.congressbuddies.com/?name=Rush%20Holt)

None of his top-5 "buddies" have him anywhere in their own top-5 lists, which is pretty unusual.

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