URI: http://www.qualityml.org/1.0/metrics/Accuracy
Name: Accuracy
Alternative names: Producer's accuracy, ACC
Definition:

Is the fraction of correctly classified items with regard to all items of the ground truth class (rows). For each class of ground truth items, the number of correctly classified items is divided by the total number of ground truth or test items of that class.

Parameters: actual categories
Source: GeoViQua
Categories: Thematic accuracy
Further information: http://spatial-analyst.net/ILWIS/htm/ilwismen/confusion_matrix.htm
XML schema:
<schema xmlns:qml="http://www.qualityml.org/1.0" 
xmlns:un="http://www.uncertml.org/2.0" 
xmlns="http://www.w3.org/2001/XMLSchema" targetNamespace="http://www.qualityml.org/1.0" 
elementFormDefault="qualified" attributeFormDefault="unqualified">
<import namespace="http://www.uncertml.org/2.0" schemaLocation="../../uncertml/2.0/uncertml.xsd"/>


<element name="Accuracy" type="qml:CategorizedRatesType" substitutionGroup="un:AbstractSummaryStatistic"/>
XML example:
<un:StatisticsCollection xmlns:qml="http://www.qualityml.org/1.0" 

   xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" 
   xsi:schemaLocation="http://www.qualitymlorg/schemas/qualityml/1.0/qualityml.xsd">
		<qml:Accuracy>
<qml:categories>Red Green Blue</qml:categories>
<qml:values max="100">1.57 3.14 6.28</qml:values>
</qml:Accuracy>
JSON example:
N/A
API example:
N/A
Value constraints: categories: any string
counts: any positive natural number