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authorKenneth Heafield <kheafiel@cluster10.lti.ece.cmu.local>2011-03-09 13:40:23 -0500
committerKenneth Heafield <kheafiel@cluster10.lti.ece.cmu.local>2011-03-09 13:40:23 -0500
commit6c923d45f2aaf960806429d36ca58a41b3a39740 (patch)
tree9d8c5bf26189e9e8e6c12c199a5925c5ca6046a9 /klm/lm/ngram_config.hh
parent95ea293005f74a627fdd2aae318d5746fa8c4e6c (diff)
kenlm sync
Diffstat (limited to 'klm/lm/ngram_config.hh')
-rw-r--r--klm/lm/ngram_config.hh58
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diff --git a/klm/lm/ngram_config.hh b/klm/lm/ngram_config.hh
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-#ifndef LM_NGRAM_CONFIG__
-#define LM_NGRAM_CONFIG__
-
-/* Configuration for ngram model. Separate header to reduce pollution. */
-
-#include <iostream>
-
-namespace lm { namespace ngram {
-
-struct Config {
- /* EFFECTIVE FOR BOTH ARPA AND BINARY READS */
- // Where to log messages including the progress bar. Set to NULL for
- // silence.
- std::ostream *messages;
-
-
-
- /* ONLY EFFECTIVE WHEN READING ARPA */
-
- // What to do when <unk> isn't in the provided model.
- typedef enum {THROW_UP, COMPLAIN, SILENT} UnknownMissing;
- UnknownMissing unknown_missing;
-
- // The probability to substitute for <unk> if it's missing from the model.
- // No effect if the model has <unk> or unknown_missing == THROW_UP.
- float unknown_missing_prob;
-
- // Size multiplier for probing hash table. Must be > 1. Space is linear in
- // this. Time is probing_multiplier / (probing_multiplier - 1). No effect
- // for sorted variant.
- // If you find yourself setting this to a low number, consider using the
- // Sorted version instead which has lower memory consumption.
- float probing_multiplier;
-
- // While loading an ARPA file, also write out this binary format file. Set
- // to NULL to disable.
- const char *write_mmap;
-
-
-
- /* ONLY EFFECTIVE WHEN READING BINARY */
- bool prefault;
-
-
-
- // Defaults.
- Config() :
- messages(&std::cerr),
- unknown_missing(COMPLAIN),
- unknown_missing_prob(0.0),
- probing_multiplier(1.5),
- write_mmap(NULL),
- prefault(false) {}
-};
-
-} /* namespace ngram */ } /* namespace lm */
-
-#endif // LM_NGRAM_CONFIG__