org.biojava.stats.svm
Class CachingKernel
java.lang.Object
org.biojava.stats.svm.NestedKernel
org.biojava.stats.svm.CachingKernel
- All Implemented Interfaces:
- java.io.Serializable, SVMKernel
- public class CachingKernel
- extends NestedKernel
Caches the results of a nested kernel so that k(a, b) need only be calculated
once.
This kernel is thread-safe. However, care must be taken when setting the
nested kernel that no other thread is retrieving values at the same time.
This would cause a race condition in which the newly flushed cache may
contain a value from the previous kernel.
- Author:
- Thomas Down, Matthew Pocock
- See Also:
- Serialized Form
Method Summary |
double |
evaluate(java.lang.Object x,
java.lang.Object y)
Return the dot product of two vectors in an arbitrary
feature space. |
void |
setNestedKernel(SVMKernel k)
Set the SVMKernel to nest to
k. |
java.lang.String |
toString()
|
Methods inherited from class java.lang.Object |
clone, equals, finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait |
CachingKernel
public CachingKernel()
CachingKernel
public CachingKernel(SVMKernel k)
setNestedKernel
public void setNestedKernel(SVMKernel k)
- Description copied from class:
NestedKernel
- Set the SVMKernel to nest to
k.
- Overrides:
setNestedKernel
in class NestedKernel
- Parameters:
k
- the SVMKernel to nest.
evaluate
public double evaluate(java.lang.Object x,
java.lang.Object y)
- Description copied from interface:
SVMKernel
- Return the dot product of two vectors in an arbitrary
feature space. In this implementation, the `vectors'
can actually be arbitrary objects.
toString
public java.lang.String toString()