CostSensitiveAttributeEval
Package
weka.attributeSelection
Synopsis
A meta subset evaluator that makes its base subset evaluator cost-sensitive.
Available in Weka 3.6.x - 3.7.1. Available via the package management system for Weka >= 3.7.2 (costSensitiveAttributeSelection).
Options
The table below describes the options available for CostSensitiveAttributeEval.
Option |
Description |
|---|---|
costMatrix |
Sets the cost matrix explicitly. This matrix is used if the costMatrixSource property is set to "Supplied". |
costMatrixSource |
Sets where to get the cost matrix. The two options areto use the supplied explicit cost matrix (the setting of the costMatrix property), or to load a cost matrix from a file when required (this file will be loaded from the directory set by the onDemandDirectory property and will be named relation_name.cost). |
evaluator |
The base evaluator to be used. |
onDemandDirectory |
Sets the directory where cost files are loaded from. This option is used when the costMatrixSource is set to "On Demand". |
seed |
The random number seed to be used. |
Capabilities
The table below describes the capabilites of CostSensitiveAttributeEval.
Capability |
Supported |
|---|---|
Class |
Missing class values, Binary class, Nominal class |
Attributes |
Empty nominal attributes, Date attributes, Numeric attributes, Unary attributes, Missing values, Nominal attributes, Binary attributes |
Min # of instances |
1 |