1NGRAMCONTEXT(1) User Commands NGRAMCONTEXT(1)
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6 ngramcontext - manual page for ngramcontext 1.3.14
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9 Generates a context set from an input LM.
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11 Usage: ngramcontext [--options] [in.fst] [out.fst]
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13 PROGRAM FLAGS:
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15 --bigram_threshold: type = double, default = 1.1
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17 Bin overfill to force a bigram context split --contexts: type =
18 int64_t, default = 1 Number of desired contexts
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20 LIBRARY FLAGS:
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22 Flags from: flags.cc
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24 --help: type = bool, default = false
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26 show usage information --helpshort: type = bool, default = false
27 show brief usage information --tmpdir: type = std::string, de‐
28 fault = "/tmp" temporary directory --v: type = int32_t, default
29 = 0 verbosity level
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31 Flags from: fst.cc
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33 --fst_align: type = bool, default = false
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35 Write FST data aligned where appropriate --fst_default_cache_gc:
36 type = bool, default = true Enable garbage collection of cache
37 --fst_default_cache_gc_limit: type = int64_t, default = 1048576
38 Cache byte size that triggers garbage collection
39 --fst_read_mode: type = std::string, default = "read" Default
40 file reading mode for mappable files --fst_verify_properties:
41 type = bool, default = false Verify FST properties queried by
42 TestProperties --save_relabel_ipairs: type = std::string, de‐
43 fault = "" Save input relabel pairs to file --save_rela‐
44 bel_opairs: type = std::string, default = "" Save output relabel
45 pairs to file
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47 Flags from: ngram-output.cc
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49 --end_symbol: type = std::string, default = "</s>"
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51 Class label for sentence end --start_symbol: type = std::string,
52 default = "<s>" Class label for sentence start
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54 Flags from: symbol-table.cc
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56 --fst_compat_symbols: type = bool, default = true
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58 Require symbol tables to match when appropriate --fst_field_sep‐
59 arator: type = std::string, default = " " Set of charac‐
60 ters used as a separator between printed fields
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62 Flags from: util.cc
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64 --fst_error_fatal: type = bool, default = true
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66 FST errors are fatal; o.w. return objects flagged as bad: e.g.,
67 FSTs: kError property set, FST weights: not a Member()
68 --ngram_error_fatal: type = bool, default = true NGram errors
69 are fatal if true; otherwise returns objects flagged as bad:
70 e.g., NGramModel::Error() is true
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72 Flags from: weight.cc
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74 --fst_weight_parentheses: type = std::string, default = ""
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76 Characters enclosing the first weight of a printed composite
77 weight (e.g., pair weight, tuple weight and derived classes) to
78 ensure proper I/O of nested composite weights; must have size 0
79 (none) or 2 (open and close parenthesis) --fst_weight_separator:
80 type = std::string, default = "," Character separator between
81 printed composite weights; must be a single character
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85ngramcontext 1.3.14 February 2022 NGRAMCONTEXT(1)