add batchTrain: runs a training set, calculates derivates and applies…

… them
marcoeilers · Mar 16, 2012 · 97f25de · 97f25de
1 parent d805ef5
commit 97f25de
Showing 1 changed file with 23 additions and 0 deletions.
diff --git a/handin3/batchTrain.m b/handin3/batchTrain.m
@@ -0,0 +1,23 @@
+function trained = batchTrain(Ws, tdata, acts, actD, allow, Lrate)
+
+%% comments tbd
+
+    ins = tdata(:,1);
+    targets = tdata(:,2);
+
+    accPds = allow * 0;
+
+    for i = 1 : length(ins)
+        az = runNN(Ws, ins(i), acts);
+        As = az(:,1);
+        Zs = az(:,2);
+
+        deltas = findDeltas(Ws, actD, targets(i), Zs(length(Zs)), ...
+                            As);
+
+        pds = partderivs(deltas, Zs, allow);
+        accPds = accPds + pds;
+    end
+
+    trained = modWs(Ws, Lrate, accPds);
+