Meeting_2007-03-05

Meeting setup

  • Date: 05.03.2007
  • Time: 09.00 Norw. time
  • Place: Internet
  • Tools: SubEthaEdit, iChat

Agenda

  1. Opening, agenda review
  2. Reviewing the task list from last week
  3. Documentation - divvun.no
  4. Corpus gathering
  5. Corpus infrastructure
  6. Infrastructure
  7. Linguistics
  8. name lexicon infrastructure
  9. Spellers
  10. Other issues
  11. Summary, task lists
  12. Closing

1. Opening, agenda review, participants

Opened at 09: 53.

Present: Sjur, Steinar, Thomas

Absent: Børre, Maaren, Saara, Tomi, Trond

Agenda accepted as is.

2. Updated task status since last meeting

Børre

On Winter Holidays.

Maaren

  • lexicalise actio compounds
  • Manually mark speller test documents for typos

Saara

  • continue aligning the rest of the parallel files
  • prepare files for manual alignment
    • done for bible files
  • add ABBR, ACR, clitics to closed classes + ADV to paradigm generator
    • done
  • update lexc2xml with comment field
    • in progress
  • start improving the corpus interface for Sámi in Oslo.
  • Set up (sub)directories for speller test documents
    • not done
  • Mark-up the added speller test texts, using our existing xml format
    • not done, where are they? If any, Børre and Trond should have added them last week.
  • fix bugs!
    • soon finishing the bug with name lexicon

Sjur

  • name lexicon:
    • refactor the rest of the SD-terms editor code
    • implement missing propnouns editing functions
    • implement improvements decided upon in Tromsø
      • name lexicon hiatus while finishing the public beta
  • hire linguist and programmer
    • short e-mail to the linguist candidate
    • programmer position stopped
  • publish corpus contracts and project infra as open-source on NoDaLi-sta
  • fix stuorra-oslolaš lower case o
  • write form to request corpus user account
  • document how to apply for access to closed corpus, and details on the corpus and its use in general
  • get an Intel Mac for Tomi
    • asked Børre to do it in Tromsø
  • write press release for the beta
  • get speller test tool from Polderland
    • asked them - nothing received so far (they promised them by Wednesday last week by latest - hmm)
  • Set up ways of adding meta-information to speller test docs
  • fix bugs!
  • other tasks:
    • went to Stockholm to present the Divvun project for an informal group of Sámi IT coordinators within each government - positive feedback, and a learning experience
    • worked a lot on derivations and generation of them, finding and fixing bugs in the lexc code.
    • added ms-speller target to the make file, to allow automatic builds of the binary speller lexicon files.

Steinar

  • Beta testing: Align manually (shorter texts)
  • Manually mark speller test texts for typos (making them into gold standards)
    • started working, added some results to documentation
  • Infrastructure test: add report to gt/doc/infra/, probably as infrareport.jspwiki
    • sent to Børre who will help add to documentation
  • Complete the semantic sets in sme-dis.rle
    • no work this week
  • missing lists
    • no work this week
  • Look at the actio compound issue when adding from missing lists
    • not done
  • Align corpus manually
    • not done
  • fix bugs!

Thomas

  • refine smj proper noun lexica, cf. the propernoun-smj-lex.txt
    • not done
  • work with compounding
    • worked and still working
  • Lack of lowering before hyphen: Twol rewrite.
    • not done
  • fix stuorra-oslolaš lower case o
    • not done
  • translate beta release docs to sme and smj
    • not done
  • Add potential speller test texts
    • not done
  • fix bugs!
    • all the time

Tomi

  • add derivations to the PLX generation
    • in progress
  • make PLX conversion test sample; add conversion testing to the make file
  • improve number PLX conversion
  • fix bugs!

Trond

  • Participate in the beta testing setup
  • Test the beta versions
  • Work on the parallel corpus issues
    • Discuss with Anders
    • Work on the aligner with (Børre)
    • fix sme texts in corpus this month
    • find missing nob parallel texts in corpus, go through Saara's list
  • Postpone these tasks to after the beta:
    • update the smj proper noun lexicon, and refine the morphological analysis, cf. the propernoun-smj-lex.txt
    • Go through the Num bugs
  • Improve automatic alignment process
  • Align corpus manually
  • Include a testbed and results in the cvs (gt/doc/proof/spelling/testing)
  • Store the tested texts, for reference
  • Add potential speller test texts
  • fix bugs!.

3. Documentation

The open documentation issues fall into these three categories:

  • Beta documentation for testers
  • Documentation for the online corpora
  • General documentation improvement after Steinar's test (for open-source release)

TODO:

  • write form to request corpus user account (Børre, Sjur, Trond)
  • document how to apply for access to closed corpus, and details on the corpus and its use in general (Børre, Sjur, Trond)
  • correct and imrove it based on feedback from Steinar ( Børre)
  • beta documentation (see separate beta section below)

4. Corpus gathering

TODO:

  • sme texts: no new additions, fix corpus errors during this month ( Børre, Trond, Saara)
  • missing nob parallel texts should be added if such holes are found ( Børre, Trond)
  • Go through the list of missing or errouneous nob texts, based upon Saara's perfect list (Børre, Trond)
  • add sma texts to the corpus repository (Børre)

5. Corpus infrastructure

Alignment

TODO

  • go through other directories (nob dicrectories, sd directories), fix parallellity information for other documents (2 hours) ( Børre)
  • Improve the automatic process:
    • Improve the anchor list and realign (Trond, Børre)
    • Only adding words does not improve alignment, you have to consider the format as well. If you cut with star e.g guo* too early, wrong word can be selected.
    • The documents have still some formatting issues which cause trouble in alignment. (In some documents tables are included to the text, some not, etc.)
    • Test and improve settings in the aligner
  • Align manually (Trond, Steinar) (especially shorter terminological texts) good idea. Saara will look for troublesome texts and prepare them for manual alignment.

6. Infrastructure

TODO:

  • add report to gt/doc/infra/, probably as infrareport.jspwiki ( Steinar)
  • update and fix our documentation and infrastructure as Steinar finds problem areas (Børre)

7. Linguistics

North Sámi

TODO:

  • lexicalise actio compounds. Example: vuolggasadji vs. vuolginsadji ( Maaren)
  • fix stuorra-oslolaš lower case o ( Sjur, Thomas, Trond)
    • postponed till after the public beta

Lule Sámi

TODO:

  • refine smj proper noun lexica, cf. the propernoun-smj-lex.txt ( Thomas, Trond)

8. Name lexicon infrastructure

Decisions made in Tromsø can be found in this meeting memo.

TODO:

  1. fix bugs in lexc2xml; add comments to the log element (Saara)
  2. finish first version of the editing (Sjur)
  3. test editing of the xml files. If ok, then: ( Sjur, Thomas, Trond)
  4. make terms-smX.xml <=== automatically from propernoun-sme-lex.xml (add nob as well) (the morphological section should be kept intact, in e.g. propernoun-sme-morph.txt) (Sjur, Saara)
  5. convert propernoun-($lang)-lex.txt to a derived file from common xml files ( Sjur, Tomi, Saara)
  6. implement data synchronisation between risten.no and the cvs repo, and possibly other servers (ie the G5 as an alternative server to the public risten.no - it might be faster and better suited than the official one; also local installations could be treated the same way)
  7. start to use the xml file as source file
  8. clean terms-sme.xml such that all names have the correct tag for their use (e.g. @type=secondary) (Thomas, Maaren, linguists)
  9. merge placenames which are errouneously in different entries: e.g. Helsinki, Helsingfors, Helsset (linguists)
  10. publish the name lexicon on risten.no (Sjur)
  11. add missing parallel names for placenames (linguists)
  12. add informative links between first names like Niillas and Nils ( linguists)

9. Spellers

OOo speller(s)

TODO after the MS Office Beta is delivered:

  • add Aspell/Hunspell data generation to the lexc2xspell (Tomi - after the PLX data generation is finished)
  • study Hunspell, perhaps also Soikko (Børre, Sjur, Tomi)

Testing

Different ways of testing

  1. Impressionistic, functionality: try the program, try all the functions
  2. Impressionistic, coverage: try the program on different texts, look for false positives
  3. Systematic (in order of importance):
    1. Make a corpus of texts, from different genres (can be done before 0.2 release)
      1. For each text, detect precision
      2. For each text, detect recall
      3. For each text, detect accuracy

Before beta release: precision is important, but have a look at recall as well.

Definitions

  • tp - true positives (correctly recognised misspellings)
  • fp - false positives (correct words errouneously marked as misspellings)
  • fn - false negatives (misspellings not recognised by the speller)

Recall and precision

  • precision = tp / ( tp + fp ) = true redlines / all redlines
    • can we trust that the redlines are actually errors?
    • Task: check all hits
    • (test p, are they tp or fp?)
  • recall = tp / ( tp + fn) = true redlines / all errors in doc
    • can we trust that all errors are actually found?
    • Task: check every single word
    • (test p, are they tp or fp, test n, are they tn or fn?)
  • accuracy = tp + tn / tp + fp + fn + tn = overall performance

Precision and recall testing

A testbed has been set up (Trond), and some texts are marked for errors and corrections (Steinar). Versions alpha, beta 0.1 and beta 0.2 have been tested.

Types of tests:

  1. Technical testing
  2. Testing for linguistic functionality
  3. Testing for lexical coverage
  4. Testing for normativity
  5. Testing the suggestions

The tester should identify these 4 values:

  • wds - number of words in the text
  • tp - correctly identified errors
  • fp - correctly written but marked as errors
  • fn - errors not marked as such

The spreadsheet will then calculate precision, recall and accuracy. Steinar has marked some texts like this: Errors are makred§marked with paragraph number followed by the correct form. Way of finding precision: Take out the § entries and evalate them for tp and fp. Way of finding recall: Remove the § entries and count the fn among the remaining words. Then fill in and collect results.

Testing of suggestion should follow the same lines:

  • errs - number of errors in the text
  • tp - the intended word is among the suggestions
  • fp - the intended word is not among the suggestions
  • fn - no suggestions
  • tn - (not relevant??)

Ordering of suggestions:

  • place in the list of the intended correction
    • ordered first
    • ordered top-five
    • ordered below top-five

"Perceived Quality", ie for all recognised errors/tp:

  • number of correct suggestions at top
  • number of correct suggestions among top-five
  • number of correct suggestions below top-five

Testing on unseen texts

We need to use unknown texts in order to measure the performance of the speller.

Regression tests

We need to ensure that we do not take steps backwars, ie all known spelling errors in the corpus should be correctly identified, with a proper suggestion among the top five. For this purpose we can use the regular corpus with correction markup.

We also need to regression test the PLX conversion. In principle this is easy - just send the full word-form list (as generated by make wordlist TARGET=sme) through the speller. None should be rejected - any word form rejected is in principle a regression. In practice, this is not that easy, since the word list is so huge. We have to investigate alternatives for this testing.

TODO:

  • add extraction of all known spelling errors in the corpus (not the prooftest corpus), and check that they are properly corrected ( Børre, Sjur)
  • test the typos.txt list, and check that all entries are properly corrected ( Børre, Sjur)
  • consider how to do a regression self-test, ie, how to test the full wordlist (Børre, Sjur)

Storing test texts

Test texts should be stored in the corpus catalogue, separated from the ordinary corpus files. They should be marked as to whether their unknown words have been added to the lexicon or not (in the former case, they cannot be used for testing of performance any more, only for regression testing). When the words have been added, the whole text can be transferred to the regular corpus repository.

TODO:

  • get an Intel Mac for Tomi (Sjur)
    • asked Børre to do it in Tromsø
  • Include a testbed and results in the cvs gt/doc/proof/spelling/testing ( Trond, Børre)
    • textid - nu_wds - tp - fp - tn - fn - prec - rec - acc - spellid - ref_to_txt
    • done
  • Store the tested texts, for reference (Trond, Børre)
  • get speller test tool from Polderland ( Sjur)
    • asked for it - nothing received, will remind them
  • Set up (sub)directories (Saara)
    • top-level dir corpus/prooftest/orig/ and prooftest/xml/
  • Add potential test texts (Børre, Thomas, Trond, anyone, really)
  • Manually mark them for typos (making them into gold standards) ( Steinar, Maaren)
    • erorr§error
  • Format the added texts in appropriate ways - use our existing xml format, with correct markup as decided earlier (the only thing that separate these documents from regular corpus documents is the directory (tree) in which they reside), thus regular corpus conversion tools, plus error markup (Saara)
    • requires changes to ccat to handle error/correction markup (Tomi)
  • Set up ways of adding meta-information (source info, used in testing or not, added to lexicon or not) (Sjur, Børre)
  • Set up test record page in gt/doc/proof/spelling/testing/ ( Børre)
    • done
  • Conduct tests on new beta versions on the basis of the unspoiled gold standard documents (whoever has time), and fill in data from testing (the testers: who?)
  • alternatively: make test scripts that will run the tests automatically, collect the numbers, and transform them into test results (who?) dependent upon the functionality of the Polderland tools.
  • include the ones already tested in the testing/ catalogue
  • test 0.3 on the same texts
  • test each version before beta release

The b0.3 / 2007.02.26 version

Known errors:

  • clitics do not work with W class words (uninflected words). Two options:
    • generate these with clitics (adds words from 6700 -> 100 000) ( Tomi, Saara)
      • done
    • ask Polderland to look at it - Sjur will do that
      • Tomi did it, follow-up e-mail discussions by Sjur and Tomi

Localisation

We need to translate the info added to our front page (and a separate page) regarding the beta release. Also the press release needs to be translated.

TODO:

  • translate beta release docs to sme ( Thomas)
  • translate beta release docs to smj ( Thomas)

Lexicon conversion to the PLX format

We need to test that the conversion is correct and gives expected results in all cases, especially regarding compounding and derivation. For that we need a small set of test entries in lexc format, and the corresponding expected output in PLX format. By comparing the actual output with the expected output we get a measure of the quality of the conversion.

TODO:

  1. add derivations to the PLX generation (Tomi)
    1. working on it
  2. add prefixes to the PLX (Børre)
  3. middle nouns (Børre)
  4. make conversion test sample; add conversion testing to the make file ( Tomi)
    1. Sjur added ms-speller to the Makefile
  5. improve number conversion (Børre, Tomi)

Public Beta release

Tentative public beta release: after the initial linguistic bugs and poor coverage, it is now moved to Thursday 15.3. - this time with derivations and numbers included: -)

Internal deadlines:

  • A date for when lexical updates should be checked in, in order to make it to the beta.
  • A plan for how many pre-betas we should compile, and when(?)
    • alpha = Dutch (sme) + French (smj)
    • beta 0.1 = the first Catalan (sme) + Basque (smj)
    • beta 0.2 = the second Catalan
    • beta 0.3 = 26. or 27.: compound beta
    • beta 0.4 = 2.3.: first derivation beta, also including numbers, prefixes.
    • beta 0.5 = 7.3.: final derivation beta, also including middle nouns

Linguistic issues still open:

  • derivations (Tomi)
  • numbers 1-20 (Børre)
  • prefixes (eahpe, ii-) (Børre)
  • middle nouns (LEXICON: lexc: Rmiddle, plx: L) (Børre)

The middle nouns are: beai, beal, geaš, oahpaheai, oai, miel, vuol. They are also marginally used initially (not found in the corpus): 

 beai+ShCmp:beai  Rreal ; (not used init in our corpus)
 beal+ShCmp:beal  Rreal ; (init with Num -goalmmat, -guđát, -nuppi, lexicalized)
 geaš+ShCmp:geaš  Rreal ; (not used init in our corpus)
 oahpaheai+ShCmp:oahpaheai  Rreal ;  init, but then actually 2-part 
 oai+ShCmp:oai 	  Rreal ;  (not used in corpus init oaivuolli (SUB? yes!)
 vuol+ShCmp:vuol  Rreal ;  (not used in our corpus)

The PLX format does not allow encoding a stem as middle-only. For the public beta we will encode them as Left-only (which is really non-right), and evaluate their effect on the quality of the speller as we progress.

DONE:

  • delivered PLX data of sme and smj including compounding
  • translated Windows installer to sme and smj
  • installed PLX compiler in G5 at /usr/local/bin/mklex* (one version for sme and one for smj)
  • added resources needed for compiling PLX lexicons to our cvs repo
  • tested the beta drop from Polderland - good we did, it is absolutely unacceptable (our responsibiliby - only linguistic errors (poor coverage) found so far)

TODO:

  • write press release (Sjur)
    • done first draft, see xtdoc/sd/.../xdocs/pr/
  • add info to front page (incl. download links) (Børre)
  • write separate page with detailed info (incl. download links) (Børre)
    • Sjur wrote a start
  • add compilation of MS Office spellers part of the Makefile (Tomi)
    • Sjur did it
  • install Windows and MS Office; test tools on Windows (Børre, Thomas)
    • done
  • collect a list of PR recipients, forward to Berit Karen Paulsen ( Børre, Sjur, Trond)
  • questions for Polderland (Børre):
    • version info in the speller?
      • see below
    • remaking/updating the installer packages with linguistic updates - who?
      • discussed with Polderland, they will discuss it internallyl

Version identification of speller lexicons

See the Norwegian spellers for an example, with the trigger string tfosgniL.

Suggestion: 

nuvviD -> Divvun
nuvviD -> Dávvisámegiella
nuvviD -> Veršuvdna_1.0b1 (based on cvs tag?)
nuvviD -> 12.2.2007  (automatically generated/added)
nuvviD -> Sjur_Nørstebø_Moshagen
nuvviD -> Børre_Gaup
nuvviD -> Thomas_Omma
nuvviD -> Maaren_Palismaa
nuvviD -> Tomi_Pieski
nuvviD -> Trond_Trosterud
nuvviD -> Saara_Huhmarniemi
nuvviD -> Steinar_Nilsen
nuvviD -> Lene_Antonsen
nuvviD -> Linda_Wiechetek

These correction rules (and their corresponding PLX entries) should be added automatically to the PLX file and the phonetic file as part of the compilation process, to include build date and version number.

TODO:

  • add version info to the generated speller lexicons (Børre, Sjur, Tomi)

Conversion from LexC to PLX

Adjectives compile at 60 sec/adjective, i.e. (5000*60) / 3600 = 83 hrs
Nouns compile at 3 sec/noun,            i.e. (23600*3) / 3600 = 19 hrs

This is so far acceptable for nouns, but on the edge of being unacceptable for adjectives. These times will multiply many times when we add derivation, meaning we will need more than a week to convert the major POSes from LexC to PLX then.

We need to investigate why adjectives are so slow, and try to improve on the conversion speed.

TODO:

  • evaluate the speed of conversion to PLX, and whether we need to try to improve it

10. Other

Corpus contracts

TODO:

  • publish corpus contracts and project infra as open-source on NoDaLi-sta ( Sjur)
    • delayed until the public beta is out the door

Bug fixing

57 open Divvun/Disamb bugs, and 23 risten.no bugs

11. Next meeting, closing

The next meeting is 12.3.2007, 09: 30 Norwegian time.

The meeting was closed at 10: 42.

Appendix - task lists for the next week

Boerre

  • write form to request corpus user account
  • document how to apply for access to closed corpus, and details on the corpus and its use in general
  • update and fix our documentation and infrastructure as Steinar finds problem areas
  • continue work on script for automatic testing of the spell checker in Word
  • fix sme texts in corpus this month
  • find missing nob parallel texts in corpus
  • add prefixes to the PLX conversion
  • add middle nouns to the PLX conversion
  • improve number PLX conversion
  • go through other directories, fix parallellity information for other documents
  • add sma texts to the corpus repository
  • add info to front page (incl. download links)
  • write separate page with detailed info (incl. download links)
  • Improve automatic alignment process
  • Store the tested texts, for reference
  • Add potential speller test texts
  • Set up ways of adding meta-information to speller test docs
  • get an Intel Mac for Tomi
  • collect a list of PR recipients, forward to Berit Karen Paulsen
  • add version info to the generated speller lexicons
  • run all known spelling errors in the corpus through the speller
  • test the typos.txt list, and check that all entries are properly corrected
  • consider how to do a regression self-test
  • fix bugs!

Maaren

  • lexicalise actio compounds
  • Manually mark speller test documents for typos

Saara

  • continue aligning the rest of the parallel files
  • prepare more files for manual alignment
  • update lexc2xml with comment field
  • start improving the corpus interface for Sámi in Oslo.
  • Set up corpus directories for proofing test documents
  • Mark-up the added speller test texts, using our existing xml format
  • fix bugs!

Sjur

  • name lexicon:
    • refactor the rest of the SD-terms editor code
    • implement missing propnouns editing functions
    • implement improvements decided upon in Tromsø
  • hire linguist
  • fix stuorra-oslolaš lower case o
  • write form to request corpus user account
  • document how to apply for access to closed corpus, and details on the corpus and its use in general
  • write press release for the beta
  • get speller test tool from Polderland
  • Set up ways of adding meta-information to speller test docs
  • collect a list of PR recipients
  • add version info to the generated speller lexicons
  • run all known spelling errors in the corpus through the speller
  • test the typos.txt list, and check that all entries are properly corrected
  • consider how to do a regression self-test
  • fix bugs!

Steinar

  • Beta testing: Align manually (shorter texts)
  • Manually mark speller test texts for typos (making them into gold standards), add the texts to a certain directory
  • Infrastructure test: add report to gt/doc/infra/, probably as infrareport.jspwiki
  • Complete the semantic sets in sme-dis.rle
  • missing lists
  • Look at the actio compound issue when adding from missing lists
  • Align corpus manually
  • fix bugs!

Thomas

  • refine smj proper noun lexica, cf. the propernoun-smj-lex.txt
  • work with compounding
  • Lack of lowering before hyphen: Twol rewrite.
  • fix stuorra-oslolaš lower case o
  • translate beta release docs to sme and smj
  • Add potential speller test texts
  • fix bugs!

Tomi

  • add derivations to the PLX generation
  • make PLX conversion test sample; add conversion testing to the make file
  • improve number PLX conversion
  • update ccat to handle error/correction markup
  • add version info to the generated speller lexicons
  • fix bugs!

Trond

  • Participate in the beta testing setup
  • Test the beta versions
  • Work on the parallel corpus issues
    • Discuss with Anders
    • Work on the aligner with (Børre)
    • fix sme texts in corpus this month
    • find missing nob parallel texts in corpus, go through Saara's list
  • Postpone these tasks to after the beta:
    • update the smj proper noun lexicon, and refine the morphological analysis, cf. the propernoun-smj-lex.txt
    • Go through the Num bugs
  • Improve automatic alignment process
  • Align corpus manually
  • Store the tested texts, for reference
  • Add potential speller test texts
  • collect a list of PR recipients
  • fix bugs!.