add optimization library source code

git-svn-id: https://ws10smt.googlecode.com/svn/trunk@204 ec762483-ff6d-05da-a07a-a48fb63a330f

1 files changed, 19 insertions, 0 deletions

diff --git a/gi/posterior-regularisation/prjava/src/optimization/gradientBasedMethods/GradientDescent.java b/gi/posterior-regularisation/prjava/src/optimization/gradientBasedMethods/GradientDescent.java
new file mode 100644
index 00000000..9a53cef4
--- /dev/null
+++ b/gi/posterior-regularisation/prjava/src/optimization/gradientBasedMethods/GradientDescent.java
@@ -0,0 +1,19 @@
+package optimization.gradientBasedMethods;
+
+import optimization.linesearch.LineSearchMethod;
+
+
+
+public class GradientDescent extends AbstractGradientBaseMethod{
+	
+	public GradientDescent(LineSearchMethod lineSearch) {
+		this.lineSearch = lineSearch;
+	}
+		
+	public double[] getDirection(){
+		for(int i = 0; i< gradient.length; i++){
+			direction[i] = -gradient[i];
+		}
+		return direction;
+	}
+}