Difference between revisions of "Hfst documentation"

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* hfst-calculate
* hfst-calculate
** Compiles SFST files into HFST transducers
**
* hfst-compare
* hfst-compare
** Compares two transducers, checking for equivalence
**
* hfst-compose
* hfst-compose
** Composes two transducers
**
* hfst-compose-intersect
* hfst-compose-intersect
** Perform intersecting composition on two transducers (typically the morphotactic transducer/lexicon and the morphophonological transducer)
** Perform intersecting composition on two transducers (typically the morphotactic transducer/lexicon and the morphophonological transducer)
* hfst-concatenate
* hfst-concatenate
** Concatenates two transducers
**
* hfst-conjunct
* hfst-conjunct
** Conjuncts two transducers
**
* hfst-determinize
* hfst-determinize
**
**
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**
**
* hfst-disjunct
* hfst-disjunct
** Disjuncts two transducers
**
* hfst-duplicate
* hfst-duplicate
**
**
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**
**
* hfst-fst2fst
* hfst-fst2fst
** Converts between Hfst, OpenFst, SFST and Foma transducers
**
* hfst-fst2pairstrings
* hfst-fst2pairstrings
**
**
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**
**
* hfst-fst2txt
* hfst-fst2txt
** Prints transducers in AT&T tabular format
**
* hfst-head
* hfst-head
**
**
* hfst-invert
* hfst-invert
** Turn a transducer upside down.
** Turn a transducer upside down.
* hfst-lexc
* '''hfst-lexc'''
** Compile a lexc file into a finite-state transducer
** Compile a lexc file into a finite-state transducer
* hfst-lexc2fst
* hfst-lexc2fst
**
**
* hfst-lookup
* '''hfst-lookup'''
** lookup, gives ''lemma+analysis'' of wordforms
**
* hfst-lookup-optimize
* hfst-lookup-optimize
**
**
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**
**
* hfst-strings2fst
* hfst-strings2fst
** Compiles string-pairs and pair-strings into transducers
**
* hfst-strip-header
* hfst-strip-header
**
**
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**
**
* hfst-summarise
* hfst-summarise
** Calculates the properties of a transducer
**
* hfst-symbols
* hfst-symbols
**
**
* hfst-tail
* hfst-tail
**
**
* hfst-twolc
* '''hfst-twolc'''
** Compiles a twol (two-level morphophonology) file into an Hfst transducer
**
* hfst-twolc-loc
* hfst-twolc-loc
**
**
* hfst-txt2fst
* hfst-txt2fst
** Converts AT&T tabular format into binary transducers
**
* hfst-xfst
* '''hfst-xfst'''
** Compiles xfst files into Hfst transducers
**


==See also==
==See also==

Revision as of 12:55, 18 July 2011

Hfst is a compiler for finite state transducers. The best documentation for writing such transducers is still Beesley and Karttunen (2003): Finite State Morphology. There still are some important differences between Hfst and the compilers described in the B&K book.


The Hfst subprograms

Hfst consists of a large number of smaller programs, with different functions:

  • hfst-calculate
    • Compiles SFST files into HFST transducers
  • hfst-compare
    • Compares two transducers, checking for equivalence
  • hfst-compose
    • Composes two transducers
  • hfst-compose-intersect
    • Perform intersecting composition on two transducers (typically the morphotactic transducer/lexicon and the morphophonological transducer)
  • hfst-concatenate
    • Concatenates two transducers
  • hfst-conjunct
    • Conjuncts two transducers
  • hfst-determinize
  • hfst-diff-test
  • hfst-disjunct
    • Disjuncts two transducers
  • hfst-duplicate
  • hfst-foma-wrapper.sh
  • hfst-format
  • hfst-fst2fst
    • Converts between Hfst, OpenFst, SFST and Foma transducers
  • hfst-fst2pairstrings
  • hfst-fst2strings
  • hfst-fst2txt
    • Prints transducers in AT&T tabular format
  • hfst-head
  • hfst-invert
    • Turn a transducer upside down.
  • hfst-lexc
    • Compile a lexc file into a finite-state transducer
  • hfst-lexc2fst
  • hfst-lookup
    • lookup, gives lemma+analysis of wordforms
  • hfst-lookup-optimize
  • hfst-minimize
  • hfst-name
  • hfst-omor-evaluate
  • hfst-pair-test
  • hfst-preprocess-for-optimized-lookup-format
  • hfst-proc
  • hfst-project
  • hfst-push-weights
  • hfst-regexp2fst
  • hfst-remove-epsilons
  • hfst-repeat
  • hfst-reverse
  • hfst-split
  • hfst-strings2fst
    • Compiles string-pairs and pair-strings into transducers
  • hfst-strip-header
  • hfst-substitute
  • hfst-subtract
  • hfst-summarise
    • Calculates the properties of a transducer
  • hfst-symbols
  • hfst-tail
  • hfst-twolc
    • Compiles a twol (two-level morphophonology) file into an Hfst transducer
  • hfst-twolc-loc
  • hfst-txt2fst
    • Converts AT&T tabular format into binary transducers
  • hfst-xfst
    • Compiles xfst files into Hfst transducers

See also

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