Precision and recall - Revision history

Alan at 10:02, 4 December 2014

2014-12-04T10:02:11Z

Zeno Gantner at 10:01, 10 January 2012

2012-01-10T10:01:56Z

Zeno Gantner at 11:05, 17 July 2011

2011-07-17T11:05:19Z

Zeno Gantner: moved Precision and Recall to Precision and recall

2011-06-06T14:05:15Z

moved Precision and Recall to Precision and recall

Zeno Gantner at 13:45, 6 June 2011

2011-06-06T13:45:50Z

Sherry: Created page with "'''Precision''' or '''Positive Predictive Value''' is a measure for exactness and '''Recall''' or '''Sensitivity''' is a measure of completeness. They range from 0 to 1 and the b..."

2011-02-20T03:24:43Z

Created page with "'''Precision''' or '''Positive Predictive Value''' is a measure for exactness and '''Recall''' or '''Sensitivity''' is a measure of completeness. They range from 0 to 1 and the b..."

New page

'''Precision''' or '''Positive Predictive Value''' is a measure for exactness and '''Recall''' or '''Sensitivity''' is a measure of completeness.
They range from 0 to 1 and the best possible value for both of them is 1.

Precision = TruePositive / (TruePositive + FalsePositive)

Recall = TruePositive / (TruePositive + FalseNegative)

[[Wikipedia: Precision and recall]]
[[Category:Evaluation measure]]

@@ Line 1: / Line 1: @@
-'''Precision''' or '''positive predictive value''' is a measure for exactness and '''recall''' or '''sensitivity''' is a measure of completeness.
+'''Precision''' or '''positive predictive value''' is a [[measure]] for exactness and '''recall''' or '''sensitivity''' is a measure of [[completeness]].
 They range from 0 to 1 and the best possible value for both of them is 1.
@@ Line 6: / Line 6: @@
 :<math>\text{recall} = \frac{tp}{tp + fn},</math>
-:where <math>tp</math> is the number of true positives, <math>fp</math> the number of false positives, and <math>fn</math> the number of false negatives.
+:where <math>tp</math> is the number of [[true positives]], <math>fp</math> the number of false positives, and <math>fn</math> the number of [[false negatives]].
 == External links ==

@@ Line 2: / Line 2: @@
 They range from 0 to 1 and the best possible value for both of them is 1.
-:Precision =  TruePositive / (TruePositive + FalsePositive)
+:<math>\text{precision} =  \frac{tp}{tp + fp}</math>
-:Recall = TruePositive / (TruePositive + FalseNegative)
+:<math>\text{recall} = \frac{tp}{tp + fn},</math>
 == External links ==

@@ Line 1: / Line 1: @@
-'''Precision''' or '''Positive Predictive Value''' is a measure for exactness and '''Recall''' or '''Sensitivity''' is a measure of completeness.
+'''Precision''' or '''positive predictive value''' is a measure for exactness and '''recall''' or '''sensitivity''' is a measure of completeness.
 They range from 0 to 1 and the best possible value for both of them is 1.
-Precision =  TruePositive / (TruePositive + FalsePositive)
+:Precision =  TruePositive / (TruePositive + FalsePositive)
-Recall = TruePositive / (TruePositive + FalseNegative)
+:Recall = TruePositive / (TruePositive + FalseNegative)
 == External links ==

← Older revision		Revision as of 13:45, 6 June 2011
Line 6:		Line 6:
	Recall = TruePositive / (TruePositive + FalseNegative)		Recall = TruePositive / (TruePositive + FalseNegative)

		+	== External links ==
		+	* [[Wikipedia: Precision and recall]]

−	~~[[Wikipedia: Precision and recall]]~~	+	[[Category: Evaluation measure]]
−	[[Category:Evaluation measure]]