Difference between revisions of "Analysing Finnish text"
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#redirect[[Finnish]] |
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[[Analyser un texte finnois|En français]] |
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{{TOCD}} |
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==Installation== |
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First make a directory called something like "source" in your home directory. The commands below assume you start in that directory. |
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===Install SFST=== |
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Note: you might have to uncomment the FPIC line in Makefile, in order to avoid a relocation error in sudo make libinstall. |
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<pre> |
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$ sudo apt-get install libreadline5-dev |
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$ wget ftp://ftp.ims.uni-stuttgart.de/pub/corpora/SFST/SFST-1.4.6a.tar.gz |
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$ tar -xzvf SFST-1.4.6a.tar.gz |
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$ cd SFST/src |
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$ make |
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$ sudo make install |
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$ sudo make libinstall |
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$ cd .. |
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</pre> |
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===Install OpenFST=== |
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<pre> |
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$ wget http://openfst.cs.nyu.edu/twiki/pub/FST/FstDownload/openfst-1.2.6.tar.gz |
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$ tar -xzvf openfst-1.2.6.tar.gz |
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$ cd openfst-1.2.6/ |
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$ ./configure |
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$ make |
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$ sudo make install |
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$ cd .. |
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</pre> |
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===Install HFST=== |
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<!-- |
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<pre> |
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$ svn co https://hfst.svn.sourceforge.net/svnroot/hfst/trunk hfst |
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$ cd hfst/hfst3 |
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$ sh autogen.sh |
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$ ./configure --without-foma |
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$ make |
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$ sudo make install |
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$ cd .. |
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</pre> |
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--> |
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<pre> |
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$ wget http://downloads.sourceforge.net/project/hfst/hfst/hfst-2.4.1.tar.gz |
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$ tar -xzvf hfst-2.4.1.tar.gz |
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$ cd hfst-2.4.1/ |
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$ ./configure |
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$ make |
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$ sudo make install |
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$ cd .. |
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</pre> |
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===Install Omorfi=== |
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<pre> |
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$ svn co http://svn.gna.org/svn/omorfi/trunk omorfi |
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$ cd omorfi |
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$ sh autogen.sh |
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$ ./configure |
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$ make |
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$ sudo make install |
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$ cd .. |
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</pre> |
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===Install VISLCG=== |
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Some hints can be found here: |
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* [http://giellatekno.uit.no/doc/tools/docu-vislcg3.html Giellatekno's vislcg3 installation page] |
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* [http://giellatekno.uit.no/doc/tools/cg3-usage.html Giellatekno's vislcg3 usage page] |
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The main vislcg3 page is at [http://beta.visl.sdu.dk/cg3.html http://beta.visl.sdu.dk/cg3.html]. |
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==Usage== |
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===Morphological analysis=== |
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====Testing==== |
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<pre> |
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$ cd omorfi/src |
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$ echo "auton" | hfst-optimized-lookup mor-omorfi.cg.hfst.ol |
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auton auto+N+Sg+Gen |
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$ echo "autojen" | hfst-optimized-lookup mor-omorfi.cg.hfst.ol |
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autojen auto+N+Pl+Gen |
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</pre> |
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===Morphological disambiguation=== |
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The analysis chain is as follows: |
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# take text |
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# preprocess: change it to one token per line (with proper punctuation handling) |
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# morphological analysis |
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# change it from omorfi output to vislcg3 input |
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# run it through vislcg3 |
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In the following, apertium-style example, points 2, 3, 4 above have been included in one operation, ''hfst-proc''. In [http://giellatekno.uit.no/doc/tools/docu-sme-manual.html the Giellatekno environment] they are run separately. The command below is run with the ''--trace'' option, giving the type (MAP, REMOVE, etc.) and line number in the cg file (here ''apertium-sme-fin.fin-sme.rlx'', cf. the message ''MAP:2859'', indicating that the addition of @+FMAINV tag is done with a mapping rule on line 2859). Running the same command but without the ''--trace'' option will give a clean output., but with less info. |
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<pre> |
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$ echo "Alussa loi Jumala taivaan ja maan." | hfst-proc -C fin-sme.automorf.hfst | vislcg3 --trace -g apertium-sme-fin.fin-sme.rlx |
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VISL CG-3 Disambiguator version 0.9.7.6378 |
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Codepage: default UTF-8, input UTF-8, output UTF-8, grammar UTF-8 |
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Parsing grammar took 0.06 seconds. |
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Grammar has 6 sections, 0 templates, 1379 rules, 1312 sets, 748 c-tags, 1299 s-tags. |
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"<Alussa>" |
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"alku" N Sg Ine |
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"<loi>" |
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"luoda" V Act Ind Prt Sg3 @+FMAINV MAP:2859 |
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"<Jumala>" |
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"Jumala" N Prop Sg Nom @→N MAP:2694 |
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"jumala" N Sg Nom @→N MAP:2694 |
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"<taivaan>" |
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"taivas" N Sg Gen @→N MAP:2680 |
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"<ja>" |
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"ja" CC @CNP MAP:2651 |
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; "ja" Pcle REMOVE:820 |
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"<maan>" |
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"maa" N Sg Gen @←OBJ MAP:2785 |
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"<.>" |
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"." Punct CLB ADD:793 |
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</pre> |
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===Morphological disambiguation within the Giellatekno framework=== |
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Note that the Finnish analysers are improved (on an admittedly slow pace) in Giellatekno's $GTHOME/langs/fin branch: |
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echo "Alussa loi Jumala taivaan ja maan." |preprocess|ufin|lookup2cg|vislcg3 -g main/langs/fin/src/syntax/disambiguation.cg3 |
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<pre> |
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"<Alussa>" |
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"alku" N Sg Ine |
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"<loi>" |
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"luoda" V Act Ind Pst Sg3 |
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"<Jumala>" |
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"Jumala" N Prop Sg Nom @→N |
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"<taivaan>" |
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"taivas" N Sg Gen @→N |
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"<ja>" |
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"ja" CC @CNP |
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"<maan>" |
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"maa" N Sg Gen @←OBJ |
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"<.>" |
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"." Punct CLB |
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</pre> |
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[[Category:Documentation]] |
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[[Category:Documentation in English]] |
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[[Category:Finnish]] |
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Latest revision as of 19:33, 18 April 2017
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