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java.lang.Object nz.ac.waikato.mcennis.rat.graph.model.ModelShell nz.ac.waikato.mcennis.rat.graph.algorithm.evaluation.PearsonCorrelation
public class PearsonCorrelation
Utilizes Given(user->artist) as ground truth and Derived(user->artist) as predictions. Calcualtes the Pearsons Correlation between two sets of recommendation with correlations made only if links are present in both sets. Herlocker, J., J. Konstan, L. Terveen, J. Reidl. 2004. Evaluating collaborative filtering recommender systems. ACM Transactions on Information Systems 22(1):5-53
Field Summary |
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Fields inherited from class nz.ac.waikato.mcennis.rat.graph.model.ModelShell |
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listener |
Constructor Summary | |
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PearsonCorrelation()
Creates a new instance of Evaluation |
Method Summary | |
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void |
execute(Graph g)
Calculate all the evaluation metrics against the given graph. |
InputDescriptor[] |
getInputType()
The input type describes all the different kinds of graph objects that are utilized (and hence required) by this object. |
OutputDescriptor[] |
getOutputType()
The output type describes all the different kinds of graph objects that are created during the execution of this algorithm. |
Parameter[] |
getParameter()
List of all parameters this component accepts. |
Parameter |
getParameter(java.lang.String param)
Returns the specific parameter identified by its key-name. |
SettableParameter[] |
getSettableParameter()
Returns settable (i.e. |
SettableParameter |
getSettableParameter(java.lang.String param)
Return the settable parameter namede by this key-name. |
void |
init(java.util.Properties map)
Parameters to be initialized 'name' - name of this instance of this algorithm. |
protected void |
pearsonsCorrelation(Graph g)
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Methods inherited from class nz.ac.waikato.mcennis.rat.graph.model.ModelShell |
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addListener, fireChange |
Methods inherited from class java.lang.Object |
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clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait |
Methods inherited from interface nz.ac.waikato.mcennis.rat.graph.model.Model |
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addListener |
Constructor Detail |
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public PearsonCorrelation()
Method Detail |
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public void execute(Graph g)
execute
in interface Algorithm
g
- graph to be modifiedprotected void pearsonsCorrelation(Graph g)
public InputDescriptor[] getInputType()
Component
getInputType
in interface Component
InputDescriptor
public OutputDescriptor[] getOutputType()
Component
getOutputType
in interface Component
OutputDescriptor
public Parameter[] getParameter()
Component
getParameter
in interface Component
public Parameter getParameter(java.lang.String param)
Component
getParameter
in interface Component
param
- key-name of the parameter
public SettableParameter[] getSettableParameter()
Component
getSettableParameter
in interface Component
public SettableParameter getSettableParameter(java.lang.String param)
Component
getSettableParameter
in interface Component
param
- key-name of the parameter
public void init(java.util.Properties map)
init
in interface Component
map
- map of the given properties naming parameters and their values in a string
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