X-Git-Url: https://fleuret.org/cgi-bin/gitweb/gitweb.cgi?a=blobdiff_plain;f=pi_feature_family.h;h=ad0999b2d67b7375a6aec103b559108b73ae74d7;hb=cd28e9c7489bae20e3abf67331efd1cab45d83df;hp=d7f2dd3a32991f9de40ce537bcbf014959bd4c91;hpb=20ec321944108cd1fe74b37ea45db3ba1a2d526a;p=folded-ctf.git

diff --git a/pi_feature_family.h b/pi_feature_family.h
index d7f2dd3..ad0999b 100644
--- a/pi_feature_family.h
+++ b/pi_feature_family.h
@@ -18,6 +18,14 @@
 // Contact <francois.fleuret@idiap.ch> for comments & bug reports        //
 ///////////////////////////////////////////////////////////////////////////
 
+/*
+
+  A PiFeatureFamily is simply a set of pi-features, with a method to
+  extract a subfamily, so that we can forget all the features not used
+  by a classifier when the learning is over.
+
+ */
+
 #ifndef PI_FEATURE_FAMILY_H
 #define PI_FEATURE_FAMILY_H