diff options
Diffstat (limited to 'decoder/ff.h')
| -rw-r--r-- | decoder/ff.h | 11 |
1 files changed, 9 insertions, 2 deletions
diff --git a/decoder/ff.h b/decoder/ff.h index afa3dbca..d6487d97 100644 --- a/decoder/ff.h +++ b/decoder/ff.h @@ -1,5 +1,5 @@ -#ifndef _FF_H_ -#define _FF_H_ +#ifndef FF_H_ +#define FF_H_ #include <string> #include <vector> @@ -27,6 +27,12 @@ class FeatureFunction { // search. When non-zero, the last N bytes in the state should be ignored when // splitting a hypernode by the state. This allows the feature function to // store some side data and later retrieve it via the state bytes. + // + // In general, this should not be necessary and it should always be possible + // to replace this with a more appropriate design of state (if you find + // yourself having to ignore some part of the state, you are most likely + // storing redundant information in the state). Be sure that you + // understand how this affects ApplyModelSet() before using it. int IgnoredStateSize() const { return ignored_state_size_; } // override this. not virtual because we want to expose this to factory template for help before creating a FF @@ -82,6 +88,7 @@ class FeatureFunction { state_size_ = state_size; } + // See document of IgnoredStateSize() above. void SetIgnoredStateSize(size_t ignored_state_size) { ignored_state_size_ = ignored_state_size; } |