URI: http://www.qualityml.org/1.0/metrics/OverallAccuracy Name: Overall accuracy Alternative names:   Definition:

Is calculated as the total number of correctly classified items (diagonal elements) divided by the total number of test items.

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"/>


	<complexType name="ConfusionMatrixDerivatesType">
<complexContent>
<extension base="qml:AbstractMetricsAggregationType">
<sequence> <element ref="qml:OverallAccuracy" minOccurs="0"/>
</sequence>
</extension>
</complexContent>
</complexType>
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:OverallAccuracy>
<qml:values>3.14</qml:values>
</qml:OverallAccuracy>
JSON example:
N/A
API example:
N/A
Value constraints: categories: any string
counts: any positive natural number