From e26434979adc33bd949566ba7bf02dff64e80a3e Mon Sep 17 00:00:00 2001 From: Chris Dyer Date: Tue, 2 Oct 2012 00:19:43 -0400 Subject: cdec cleanup, remove bayesian stuff, parsing stuff --- .../src/optimization/projections/Projection.java | 72 ---------------------- 1 file changed, 72 deletions(-) delete mode 100644 gi/posterior-regularisation/prjava/src/optimization/projections/Projection.java (limited to 'gi/posterior-regularisation/prjava/src/optimization/projections/Projection.java') diff --git a/gi/posterior-regularisation/prjava/src/optimization/projections/Projection.java b/gi/posterior-regularisation/prjava/src/optimization/projections/Projection.java deleted file mode 100644 index b5a9f92f..00000000 --- a/gi/posterior-regularisation/prjava/src/optimization/projections/Projection.java +++ /dev/null @@ -1,72 +0,0 @@ -package optimization.projections; - -import optimization.util.MathUtils; -import optimization.util.MatrixOutput; -import util.ArrayMath; -import util.Printing; - - - -public abstract class Projection { - - - public abstract void project(double[] original); - - - /** - * From the projection theorem "Non-Linear Programming" page - * 201 fact 2. - * - * Given some z in R, and a vector x* in X; - * x* = z+ iif for all x in X - * (z-x*)'(x-x*) <= 0 where 0 is when x*=x - * See figure 2.16 in book - * - * @param original - * @param projected - * @return - */ - public boolean testProjection(double[] original, double[] projected){ - double[] original1 = original.clone(); - //System.out.println(Printing.doubleArrayToString(original1, null, "original")); - //System.out.println(Printing.doubleArrayToString(projected, null, "projected")); - MathUtils.minusEquals(original1, projected, 1); - //System.out.println(Printing.doubleArrayToString(original1, null, "minus1")); - for(int i = 0; i < 10; i++){ - double[] x = samplePoint(original.length); - // System.out.println(Printing.doubleArrayToString(x, null, "sample")); - //If the same this returns zero so we are there. - MathUtils.minusEquals(x, projected, 1); - // System.out.println(Printing.doubleArrayToString(x, null, "minus2")); - double dotProd = MathUtils.dotProduct(original1, x); - - // System.out.println("dot " + dotProd); - if(dotProd > 0) return false; - } - - //Perturbs the point a bit in all possible directions - for(int i = 0; i < original.length; i++){ - double[] x = perturbePoint(projected,i); - // System.out.println(Printing.doubleArrayToString(x, null, "perturbed")); - //If the same this returns zero so we are there. - MathUtils.minusEquals(x, projected, 1); - // System.out.println(Printing.doubleArrayToString(x, null, "minus2")); - double dotProd = MathUtils.dotProduct(original1, x); - - // System.out.println("dot " + dotProd); - if(dotProd > 0) return false; - } - - - - return true; - } - - //Samples a point from the constrained set - public abstract double[] samplePoint(int dimensions); - - //Perturbs a point a bit still leaving it at the constraints set - public abstract double[] perturbePoint(double[] point, int parameter); - - -} -- cgit v1.2.3