hfst-reweight man page on DragonFly
[printable version]
HFST-REWEIGHT(1) User Commands HFST-REWEIGHT(1)
NAME
hfst-reweight - =Reweight transducer weights simply
SYNOPSIS
hfst-reweight [OPTIONS...] [INFILE]
DESCRIPTION
Reweight transducer weights simply
Common options:
-h, --help
Print help message
-V, --version
Print version info
-v, --verbose
Print verbosely while processing
-q, --quiet
Only print fatal erros and requested output
-s, --silent
Alias of --quiet
Input/Output options:
-i, --input=INFILE
Read input transducer from INFILE
-o, --output=OUTFILE
Write output transducer to OUTFILE
Reweighting options:
-a, --addition=AVAL
add AVAL to matching weights
-b, --multiplier=BVAL
multiply matching weights by BVAL
-F, --function=FNAME
operate matching weights by FNAME
-l, --lower-bound=LVAL
match weights greater than LVAL
-u, --upper-bound=UVAL
match weights less than UVAL
-I, --input-symbol=ISYM
match arcs with input symbol ISYM
-O, --output-symbol=OSYM
match arcs with output symbol OSYM
-S, --symbol=SYM
match arcs havins symbol SYM
-e, --end-states-only
match end states only, no arcs
-T, --tsv-file=TFILE
read reweighting rules from TFILE
If OUTFILE or INFILE is missing or -, standard streams will be used.
Format of result depends on format of INFILE If AVAL, BVAL or FNAME are
omitted, they default to neutral elements of addition, multiplication
or identity function. If LVAL or UVAL are omitted, they default to
minimum and maximum values of the weight structure. If ISYM, OSYM or
SYM are omitted, they default to value that matches all arcs. Float
values are parsed with strtod(3) and integers strtoul(3) The functions
allowed for FNAME are <cmath> float functions with parameter count of 1
and a matching return value: abs, acos, asin, ... sqrt, tan, tanh The
precedence of operands follows the formula BVAL * FNAME(w) + AVAL The
formula is applied iff ((LVAL <= w) && (w <= UVAL)), where w is weight
of arc, and (ISYM == i) && (OSYM == o) && ((SYM == i) || (SYM == o)) ^^
(end state && -e).
REPORTING BUGS
Report bugs to <hfst-bugs@helsinki.fi> or directly to our bug tracker
at: <https://source‐
forge.net/tracker/?atid=1061990&group_id=224521&func=browse>
hfst-reweight home page:
<https://kitwiki.csc.fi/twiki/bin/view/KitWiki//HfstReweight>
General help using HFST software:
<https://kitwiki.csc.fi/twiki/bin/view/KitWiki//HfstHome>
COPYRIGHT
Copyright © 2010 University of Helsinki, License GPLv3: GNU GPL version
3 <http://gnu.org/licenses/gpl.html>
This is free software: you are free to change and redistribute it.
There is NO WARRANTY, to the extent permitted by law.
HFST October 2014 HFST-REWEIGHT(1)
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