Difference between revisions of "Northern Sámi and Norwegian/release"

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==Issues==
==Issues==
===sme-nob-specific stuff should be in sme-nob===
e.g. langs/sme/tools/mt/apertium/tagsets/apertium.nob.relabel

Alternatively (ideally), there shouldn't be sme-nob-specific tag changes; all apertium pairs should have pretty similar tagsets.

===Periods in abbreviations missing from lemma===

Forms "nr" and "nr." get the exact same analysis:

<pre>
$ echo -e 'nr\nnr.'|apertium -f none -d . sme-nob-morph
^nr/nr<n><abbr><acc>/nr<n><abbr><attr>/nr<n><abbr><gen>/nr<n><abbr><nom>$
^nr./nr<n><abbr><acc>/nr<n><abbr><attr>/nr<n><abbr><gen>/nr<n><abbr><nom>$
</pre>

So when translating to Norwegian, we have no idea whether to include the dot or not.

If form "nr." had lemma "nr." this would be simple.


===High priority bad translations===
===High priority bad translations===
What are the high-priority linguistic issues to deal with?
What are the high-priority linguistic issues to deal with?


Would we gain a lot by inserting modals instead of adverbs for
Pot/Cond verbs? Is there a better, general, way to translate the
progressive? Should we get some of Francis' [[Generating lexical selection rules|automatically discovered
lex.sel rules]]? And are there any "simple" constructions that we could
handle but don't yet?


* TODO: We should add a post-generator to insert epenthetics in compounds, turning eg. "ing~b" into "ingsb"
* TODO: Bidix will be added to with stuff from GTSVN
* TODO: Bidix will be added to with stuff from GTSVN
** see dev/inc* (verbs need transitivity, nouns need gender checked, words with spaces shouldn't have)
** see dev/inc* (verbs need transitivity, nouns need gender checked, words with spaces shouldn't have), see also these files with entries are not in bidix:
** [http://apertium.svn.sourceforge.net/viewvc/apertium/incubator/apertium-sme-nob/dev/bidix-pronouns.todo.dix dev/bidix-pronouns.todo.dix]
* TODO: After bidix additions, Francis will run apertium-lex-learner
** [http://apertium.svn.sourceforge.net/viewvc/apertium/incubator/apertium-sme-nob/dev/bidix-abbr.todo.dix dev/bidix-abbr.todo.dix]
* TODO: add forms to nob.dix (that are in bidix) from nn-nb-infreq; add lexicalised compounds using existing lemmas; mwe's and other missing stuff manually
** [http://apertium.svn.sourceforge.net/viewvc/apertium/incubator/apertium-sme-nob/dev/bidix-shcmp.todo.dix dev/bidix-shcmp.todo.dix]
* TODO: After bidix additions, Francis will run apertium-lex-learner to [[Generating lexical selection rules|automatically discover
lex.sel rules]]
* TODO: URL recognition (I tried making some with lexc, it worked by itself, but took ages to compile into the regular lexc, not sure why)
* TODO: URL recognition (I tried making some with lexc, it worked by itself, but took ages to compile into the regular lexc, not sure why)
* TODO: Compounds mess up CG. We have to leave all the tags of the non-heads in because of bidix lookup, so we get eg. <code>politiija<N><Sg><Nom><Cmp>+stašuvdna<N><Sg><Ill></code> (instead of <code>politiija#stašuvdna<N><Sg><Ill></code> like the lookup2cg script gives). CG sees <code>Nom</code> and thus applies rules that it shouldn't, etc.
** The ideal solution, but currently impossible: rename the non-head tags in BEFORE-/AFTER-SECTIONS. I tried <code>BEFORE-SECTIONS SUBSTITUTE (N Sg Nom Cmp) (N* Sg* Nom* Cmp)</code> which works for the above, but CG then also turns <code>duohta<A><Sg><Nom><Cmp>+dilli<N><Sg><Acc></code> into <code>duohta<A><@→N>+dilli<N*><Sg*><Nom*><Cmp><Sg><Gen>$</code>, while if there are several non-heads, it'll only substitute in the first part. It seems some sort of tag order mechanism would be needed in CG for the BEFORE-SECTIONS/AFTER-SECTIONS stashing method to work.
** It's possible to do the initial renaming in a twol rule (committed, but commented out for now), but we have no way of changing the tags back in CG (an AFTER-SECTIONS rule SUBSTITUTE N* N will unfortunately merge N* and later occurences of N).




* DONE: Cond rules get modals, handled like passive in t1x (instead of "kanskje" in t3x), Pot gets "da<adv>" for now
* DONE: In chunker/t1x, add tags to certain verbs (eg. using def-lists) that can be used in t3x to change/remove case-prepositions (see dev/valence.txt)
* DONE: In chunker/t1x, add tags to certain verbs (eg. using def-lists) that can be used in t3x to change/remove case-prepositions (see dev/valence.txt)
** TODO: fill out with more def-list entries
** TODO: fill out with more def-list entries
** TODO: go through dev/valence.txt and mark off which examples can be handled with noun-lists, and which with verb-lists
** TODO: go through dev/valence.txt and mark off which examples can be handled with noun-lists, and which with verb-lists


===Derivations mess up CG===
===DONE: remove unhandled derivations===
Mainly a problem with the PoS-changing derivations.
Any [[Northern Sámi and Norwegian/Derivations|derivations]] that are not handled we remove from the analyser with a twol negation rule in dev/xfst2apertium.useless.twol, this makes the lexicon a lot easier to handle for testvoc.


In lookup2cg, PoS tags are given stars if they appear before derivational tags, so "V Der N" becomes "V* Der N". We could do this with twol, but we have no way of removing them before bidix.
===DONE: +G3 tag===
This is used like the +Actor tag, for sme wsd (here based on "stadieveksling").


Simple / clean solution: lexicalise.
We move it after the +N tag in dev/xfst2apertium.hashtags.twol (so it gets the same position as +Actor), this makes transfer a lot simpler.


===Testvoc===
Getting a list of lemmas which have +G3 is easy (grep all nouns from bidix, analyse their lemmas and grep for lemma+G3), use this to tag bidix.
Before release, we need to get [[testvoc]] out of the way – making sure there are no #'s and @'s in the output. The analyser is trimmed, but we can still have generator errors (and CG substitute errors). We can't create all possible surface forms from a cyclic [[HFST]] analyser, but we can at least run as large a corpus as we can find through sme-nob and look for # and @, and also send through the right-hand-sides of the bidix.


There are two helper scripts:
===DONE: ensure we have all necessary postchunk rules===
Postchunk rules are needed for any chunk containing a
determiner/pronoun/adjective/noun/verb, we can easily make sure each
possible chunk name has a postchunk rule (new chunks are created in
t1x with names like pre_pre_nom, but may also be merged in t2x to
eg. pre_pre_nom_conj_nom)


* <code>dev/sme-nob.inconsistency.sh | grep '^#'</code> should give no results. This script just sends the rhs of the bidix through the generator.
All possible SN and SA chunks should have the needed postchunk rules now.
* <code>sed 's/^/sme\t/' smecorpus.txt | dev/analyse-all-stages.sh > analysedcorpus.txt</dev> – here <code>grep 'DGEN.*#'</code> should give no hits. This script also outputs the input and morph and tagger stages (and nob-sentence if handed a parallel corpus)


===Testvoc===
Before release, we need to get [[testvoc]] out of the way – making
sure there are no #'s and @'s in the output. As yet we don't have a
way to create all possible surface forms from an [[HFST]] analyser,
but we can at least run as large a corpus as we can find through
sme-nob and look for # and @.


The script dev/sme-nob.inconsistency.sh tries to generate (with nob.dix) base forms (like infinitives or singular indefinites) of the various rhs entries in the bidix. Statistics so far:
{|class=wikitable
! Part-of-Speech !! entries from bidix that are OK in nob.dix !! in bidix but not in nob.dix !! comments !! in sme analyser but not bidix
|-
| '''verbs''' || 14017 || '''486''' || mostly mwe's missing || ???
|-
| '''nouns''' || 3685 || '''8227''' || mostly compounds missing || ???
|-
| '''proper nouns''' || 17412 || '''0''' || :-) easy to find nob pardefs automatically || ???
|-
| '''adverbs''' || 96 || '''143''' || || ???
|-
| '''prepositions''' || 42 || '''0''' || :-) || ???
|-
| '''adjectives''' || 463 || '''593''' || || ???
|-
| '''abbreviations''' || ??? || '''???''' || see dev/abbr.todo.dix || 619
|}


==Schedule==
{|class=wikitable
! Task !! Date
|-
| Work on high priority bad translations, expand bidix coverage || until 2010-07-14
|-
| Remove unhandled derivations, ensure we have all postchunk rules || 2010-07-14…2010-07-18
|-
| Testvoc || 2010-07-18…2010-08-01
|-
| '''Tentative release date for apertium-sme-nob 0.1.0''' || '''August 1st 2010'''
|-
|}


====Expanding the morphology====
Update: Lene and Trond have more free time after August, real release beginning of September?
Running <code>hfst-fst2strings sme-nob.automorf.hfst.ol</code> creates an expansion of the morphology, might be possible to use for testvoc.

There's a handy script <code>dev/gt-expand-to-bidix.sh</code> that takes as input one word and PoS (tab-separated) per line, e.g. <pre>galbmit V
beana N</pre>, and uses the giellatekno web-based lemma expander to create all forms of each lemma (since hfst is still not very good for that), then runs them through bidix to check for missing bidix entries.



[[Category:Northern Sámi and Norwegian|*]]

Latest revision as of 13:47, 15 September 2015

This page holds information about the release schedule for apertium-sme-nob.

Issues[edit]

sme-nob-specific stuff should be in sme-nob[edit]

e.g. langs/sme/tools/mt/apertium/tagsets/apertium.nob.relabel

Alternatively (ideally), there shouldn't be sme-nob-specific tag changes; all apertium pairs should have pretty similar tagsets.

Periods in abbreviations missing from lemma[edit]

Forms "nr" and "nr." get the exact same analysis: 

$ echo -e 'nr\nnr.'|apertium -f none -d . sme-nob-morph 
^nr/nr<n><abbr><acc>/nr<n><abbr><attr>/nr<n><abbr><gen>/nr<n><abbr><nom>$
^nr./nr<n><abbr><acc>/nr<n><abbr><attr>/nr<n><abbr><gen>/nr<n><abbr><nom>$

So when translating to Norwegian, we have no idea whether to include the dot or not.

If form "nr." had lemma "nr." this would be simple.


High priority bad translations[edit]

What are the high-priority linguistic issues to deal with?



  • DONE: In chunker/t1x, add tags to certain verbs (eg. using def-lists) that can be used in t3x to change/remove case-prepositions (see dev/valence.txt)
    • TODO: fill out with more def-list entries
    • TODO: go through dev/valence.txt and mark off which examples can be handled with noun-lists, and which with verb-lists

Derivations mess up CG[edit]

Mainly a problem with the PoS-changing derivations.

In lookup2cg, PoS tags are given stars if they appear before derivational tags, so "V Der N" becomes "V* Der N". We could do this with twol, but we have no way of removing them before bidix.

Simple / clean solution: lexicalise.

Testvoc[edit]

Before release, we need to get testvoc out of the way – making sure there are no #'s and @'s in the output. The analyser is trimmed, but we can still have generator errors (and CG substitute errors). We can't create all possible surface forms from a cyclic HFST analyser, but we can at least run as large a corpus as we can find through sme-nob and look for # and @, and also send through the right-hand-sides of the bidix.

There are two helper scripts:

  • dev/sme-nob.inconsistency.sh | grep '^#' should give no results. This script just sends the rhs of the bidix through the generator.
  • sed 's/^/sme\t/' smecorpus.txt | dev/analyse-all-stages.sh > analysedcorpus.txt</dev> – here grep 'DGEN.*#' should give no hits. This script also outputs the input and morph and tagger stages (and nob-sentence if handed a parallel corpus)



Expanding the morphology[edit]

Running hfst-fst2strings sme-nob.automorf.hfst.ol creates an expansion of the morphology, might be possible to use for testvoc.

There's a handy script dev/gt-expand-to-bidix.sh that takes as input one word and PoS (tab-separated) per line, e.g. 

galbmit	V
beana	N

, and uses the giellatekno web-based lemma expander to create all forms of each lemma (since hfst is still not very good for that), then runs them through bidix to check for missing bidix entries.

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