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| | P(e|c) - P(e|C\backslash c) | | P(e|c) - P(e|C\backslash c) |
| | </math> | | </math> |
| − | |<math> | + | |<math>suff(e,c)+nec(e,c)-1</math> |
| − | suff + nec - 1 | |
| − | </math> | |
| | |<ref name="pearl_causality" /><ref>Eells, E. (1991). ''Probabilistic causality'' (Vol. 1). Cambridge University Press.</ref> | | |<ref name="pearl_causality" /><ref>Eells, E. (1991). ''Probabilistic causality'' (Vol. 1). Cambridge University Press.</ref> |
| | |- | | |- |
| | |Cheng度量 | | |Cheng度量 |
| − | |<math> | + | |<math>suff(e,c)-nec^{\dagger}(e)</math> |
| − | \frac{P(e|c) - P(e|C\backslash c)}{1 - P(e|C\backslash c)}
| + | |<math>\frac{suff(e,c)+nec(e,c)-1}{nec(e,c)}</math> |
| − | </math> | |
| − | |<math> | |
| − | \frac{suff + nec - 1}{nec} | |
| − | </math> | |
| | |<ref name="pearl_causality" /><ref>Cheng, P. W., & Novick, L. R. (1991). Causes versus enabling conditions. ''Cognition'', ''40''(1-2), 83-120.</ref> | | |<ref name="pearl_causality" /><ref>Cheng, P. W., & Novick, L. R. (1991). Causes versus enabling conditions. ''Cognition'', ''40''(1-2), 83-120.</ref> |
| | |- | | |- |
| | |Judea Pearl度量 | | |Judea Pearl度量 |
| − | |<math>\mathrm{PNS}=P(e\mid c)-P(e\mid C\backslash c)</math> | + | |<math>\mathrm{PNS}(充要概率)=P(e\mid c)-P(e\mid C\backslash c)</math> |
| − | <math>\mathrm{PN}=\frac{P(e\mid c)-P(e\mid C\backslash c)}{P(e\mid c)}</math> | + | <math>\mathrm{PN}(必要概率)=\frac{P(e\mid c)-P(e\mid C\backslash c)}{P(e\mid c)}</math> |
| − | <math>\mathrm{PS}=\frac{P(e\mid c)-P(e\mid C\backslash c)}{1-P(e\mid C\backslash c)}</math> | + | <math>\mathrm{PS}(充分概率)=\frac{P(e\mid c)-P(e\mid C\backslash c)}{1-P(e\mid C\backslash c)}</math> |
| | |<math>\mathrm{PNS}=suff(e,c)+nec(e,c)-1</math> | | |<math>\mathrm{PNS}=suff(e,c)+nec(e,c)-1</math> |
| | <math>\mathrm{PN}=\frac{suff(e,c)+nec(e,c)-1}{suff(e,c)}</math> | | <math>\mathrm{PN}=\frac{suff(e,c)+nec(e,c)-1}{suff(e,c)}</math> |