|
||||||||||
PREV PACKAGE NEXT PACKAGE | FRAMES NO FRAMES |
WeightedCovarianceMatrixBuilder
See:
Description
Interface Summary | |
---|---|
WeightFunction | WeightFunction interface that allows the use of various distance-based weight functions. |
Class Summary | |
---|---|
ConstantWeight | Constant Weight function The result is always 1.0 |
ErfcStddevWeight | Gaussian Error Function Weight function, scaled using stddev. |
ErfcWeight | Gaussian Error Function Weight function, scaled such that the result it 0.1 at distance == max erfc(1.1630871536766736 * distance / max) The value of 1.1630871536766736 is erfcinv(0.1), to achieve the intended scaling. |
ExponentialStddevWeight | Exponential Weight function, scaled such that the result it 0.1 at distance == max stddev * exp(-.5 * distance/stddev) This is similar to the Gaussian weight function, except distance/stddev is not squared. |
ExponentialWeight | Exponential Weight function, scaled such that the result it 0.1 at distance == max exp(-2.3025850929940455 * distance/max) This is similar to the Gaussian weight function, except distance/max is not squared |
GaussStddevWeight | Gaussian Weight function, scaled such using standard deviation factor * exp(-.5 * (distance/stddev)^2) with factor being 1 / sqrt(2 * PI) |
GaussWeight | Gaussian Weight function, scaled such that the result it 0.1 at distance == max exp(-2.3025850929940455 * (distance/max)^2) |
InverseLinearWeight | Inverse Linear Weight Function. |
InverseProportionalStddevWeight | Inverse proportional weight function, scaled using the standard deviation. 1 / (1 + distance/stddev) |
InverseProportionalWeight | Inverse proportional weight function, scaled using the maximum. 1 / (1 + distance/max) |
LinearWeight | Linear weight function, scaled using the maximum such that it goes from 1.0 to 0.1 1 - 0.9 * (distance/max) |
QuadraticStddevWeight | Quadratic weight function, scaled using the standard deviation. |
QuadraticWeight | Quadratic weight function, scaled using the maximum to reach 0.1 at that point. 1.0 - 0.9 * (distance/max)^2 |
Weight functions used in weighted PCA via WeightedCovarianceMatrixBuilder
|
|
|||||||||||
PREV PACKAGE NEXT PACKAGE | FRAMES NO FRAMES |