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ContactCenters V. 0.9.9. |
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java.lang.Objectumontreal.iro.lecuyer.contactcenters.msk.stat.MatrixCache
public class MatrixCache
Constructs and caches matrices of observations derived from
the matrices obtained using a CallCenterMeasureManager
.
The CallCenterMeasureManager.getValues(MeasureType,boolean)
method
computes matrices whose rows usually correspond to call types.
However, the rows in matrices of statistical probes correspond
to segments of call types: there is one row per call type,
one row per user-defined group of call types, and a final row
regrouping all call types.
This class computes these aggregate rows, and stores the resulting
matrices in a cache for them to be retrieved faster at a later time.
Constructor Summary | |
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MatrixCache(CallCenter cc,
CallCenterMeasureManager ccm)
Constructs a new matrix cache from the call center cc, and the measure manager ccm. |
Method Summary | |
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void |
clear()
Clears the cached matrix. |
DoubleMatrix2D |
getMatrix(MeasureType mt,
RowType targetRowType)
Returns a matrix of observations for type of measure mt adapted to row type targetRowType. |
Methods inherited from class java.lang.Object |
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clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait |
Constructor Detail |
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public MatrixCache(CallCenter cc, CallCenterMeasureManager ccm)
Method Detail |
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public void clear()
public DoubleMatrix2D getMatrix(MeasureType mt, RowType targetRowType)
RowType.CONTACTTYPE
, the row types might differ.
In particular, targetRowType is set to
RowType.INBOUNDTYPE
if we want to keep only the rows
corresponding to segments of inbound call types, and
RowType.OUTBOUNDTYPE
to keep rows for segment of outbound
types only. For example, if
mt is MeasureType.NUMARRIVALS
, the base
matrix gives the number of arrivals for each segment of call type.
By setting the target row type to RowType.INBOUNDTYPE
,
we obtain the number of arrivals for segments of inbound types only.
If the target row type is
RowType.INBOUNDTYPEAWT
,
the set of rows corresponding to segments of inbound types is duplicated
m times, where m is the number of matrices of acceptable
waiting times.
If mt is
MeasureType.NUMSERVED
, the resulting
base matrix has one row per segment of call type.
By using RowType.INBOUNDTYPEAWT
as target row type,
the obtained matrix of numbers has m segments of inbound
call types, and is compatible with the matrix
returned if mt is
MeasureType.NUMSERVEDBEFOREAWT
.
The method first obtains the base matrix
using getBaseMatrix(MeasureType)
.
If the row type associated with mt does not correspond
to contact types, the method does nothing else.
It then adds or subtracts rows for the returned matrix
to have the number of rows corresponding to targetRowType.
mt
- the type of measure matrix for which a matrix of
observations is needed.targetRowType
- the target row type.
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ContactCenters V. 0.9.9. |
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