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authorChris Dyer <cdyer@cs.cmu.edu>2011-05-03 17:30:45 -0400
committerChris Dyer <cdyer@cs.cmu.edu>2011-05-03 17:30:45 -0400
commit7c7604c4fbbedc4db977b3ad15ac6a47aa7044f2 (patch)
tree6ca8cb8e6801fc172bdf9c12a1966a7e7c33dd24 /training
parent01e219ec7d0bbd81471d7e6978397a2d53a71246 (diff)
parent256dfe09345418962241f83e9bff9b4b4bba7e92 (diff)
Merge branch 'master' of github.com:redpony/cdec
Diffstat (limited to 'training')
-rw-r--r--training/model1.cc11
1 files changed, 8 insertions, 3 deletions
diff --git a/training/model1.cc b/training/model1.cc
index 4023735c..b9590ece 100644
--- a/training/model1.cc
+++ b/training/model1.cc
@@ -129,10 +129,15 @@ int main(int argc, char** argv) {
likelihood += log(sum) + src_logprob;
}
}
+
+ // log(e) = 1.0
+ double base2_likelihood = likelihood / log(2);
+
if (flag) { cerr << endl; }
- cerr << " log likelihood: " << likelihood << endl;
- cerr << " cross entropy: " << (-likelihood / denom) << endl;
- cerr << " perplexity: " << pow(2.0, -likelihood / denom) << endl;
+ cerr << " log_e likelihood: " << likelihood << endl;
+ cerr << " log_2 likelihood: " << base2_likelihood << endl;
+ cerr << " cross entropy: " << (-base2_likelihood / denom) << endl;
+ cerr << " perplexity: " << pow(2.0, -base2_likelihood / denom) << endl;
if (!final_iteration) {
if (variational_bayes)
tt.NormalizeVB(alpha);