Changeset 1762 for trunk/autoquest-core-usageprofiles/src/main/java

Timestamp:

09/25/14 10:44:02 (10 years ago)

Author:

sherbold

Message:

• adapted getLogSum method to use log(x+1) instead of -log for the summation of the probabilities

File:

• trunk/autoquest-core-usageprofiles/src/main/java/de/ugoe/cs/autoquest/usageprofiles/TrieBasedModel.java (modified) (1 diff)

trunk/autoquest-core-usageprofiles/src/main/java/de/ugoe/cs/autoquest/usageprofiles/TrieBasedModel.java

@@ -398 +398 @@
         List<Event> context = new LinkedList<Event>();
         for (Event event : sequence) {
-            odds -= Math.log(getProbability(context, event));
+            odds = Math.log(getProbability(context, event)+1);
             context.add(event);
         }