정규화구글거리 NGD

1 개요[ | ]

Normalized Google distance, Google distance
정규화된 구글 거리, 정규화 구글 거리, 구글 거리
NGD(x,y)=max{logf(x),logf(y)}logf(x,y)logMmin{logf(x),logf(y)}

2 계산 예시[ | ]

  • horse: f(x) = 46,700,000
  • rider: f(y) = 12,200,000
  • horse rider: f(x,y) = 2,630,000
  • M = 8,058,044,651

NGD=max(log46700000,log12200000)log2630000log8058044651min(log46700000,log12200000)

=7.6693168816.4199557489.906229677.086359831=0.443056312

3 엑셀 예시[ | ]

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A B C D
horse 46700000 log f(x) =LOG(B1)
rider 12200000 log f(y) =LOG(B2)
horse + rider 2630000 log f(x,y) =LOG(B3)
M 8058044651 log M =LOG(B4)
NGD =(MAX(D1,D2)-D3)/(D4-MIN(D1,D2))
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A B C D
horse 46700000 log f(x) 7.669316881
rider 12200000 log f(y) 7.086359831
horse + rider 2630000 log f(x,y) 6.419955748
M 8058044651 log M 9.90622967
NGD 0.443056312

4 같이 보기[ | ]

5 참고[ | ]