Non-existing words should not kill the overall score

1 files changed, 5 insertions, 0 deletions

diff --git a/spellchecker/src/SpellCorrector.java b/spellchecker/src/SpellCorrector.java
index eee6cf1..edff671 100644
--- a/spellchecker/src/SpellCorrector.java
+++ b/spellchecker/src/SpellCorrector.java
@@ -259,6 +259,11 @@ public class SpellCorrector {
         private double combineProbabilities(double[] probabilities) {
             double p = 1;
             for (double score : probabilities) {
+                if (score == 0) {
+                    // Non-existing words are really bad.
+                    p *= 1e-99;
+                    continue;
+                }
                 p *= score;
             }
             return p;