Tatar and Russian

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This is a language pair translating from Tatar to Russian. The pair is currently located in nursery.

Current state

Last updated Testvoc (clean or not) Corpus testvoc
(no *, no */@, no */@/#)
Stems in bidix WER, PER on dev. corpus WER, PER on unseen texts
02/06/2014 No
  • news(67.6, 67.4, 59.4)
  • wp(66.9, 66.6, 61.1)
  • aytmatov(71.7, 71.5 66.8)
  • NT(67.1, 66.8, 62.0)
  • Quran(68.9, 68.7, 63.3)
2141 71.05 %, 53.68 % --
  • Testvoc = apertium-tat-rus/testvoc/standard/testvoc.sh
  • Corpus testvoc = apertium-tat-rus/testvoc/corpus/trimmed-coverage.sh. Corpora can be found in the turkiccorpora repository.
    • news = tat.news.2005-2011_300K-sentences.txt.bz2, wp = tat.wikipedia.2013-02-25.txt.bz2 NT = tat.NT.txt.bz2. Others are unambiguous.
  • Number of stems taken from the header "aperium-dixtools format-1line 10 55 apertium-tat-rus.tat-rus.dix" produces.
  • Development corpus = apertium-tat-rus/corpus (-test = tat-rus-nova.txt, -ref = tat-rus-posted.txt). WER / PER results are given when unknown-word marks (stars) are not removed.

Workplan (GSoC 2014)

This is a workplan for development efforts for the Tatar to Russian translator in Google Summer of Code 2014.

Major goals

  • Clean testvoc
  • 10000 top stems in bidix and at least 80% trimmed coverage
  • Constraint grammar of Tatar containing at least 1000 rules, which makes 90-95% of all words unambiguous, with at least 95% retaining the correct analysis.
  • Average WER on unseen texts below 50

Overview

Weeks 1-6 Weeks 7-12 Saturdays
transfer rules for pending wiki tests (focus on phrases and clauses, not single words) adding stems
get categor(y/ies) testvoc clean
with one word ->
<- add more stems to categor(y/ies)
while preserving testvoc clean
disambiguation lexical selection

Weekly schedule

Week Dates Goals Reached
1 19/05—25/05 Testvoc-lite for nouns clean
2 26/05—01/06
  • Testvoc-lite for adjectives clean
  • At least 5 new phrase types supported
  • All nouns from tat.lexc added to bidix
3 02/06—08/06 Testvoc-lite for verbs clean
4 09/06—15/06 Testvoc-lite for adverbs clean
5 16/06—22/06 Testvoc-lite for numerals clean
6 23/06—29/06 Testvoc for pronouns clean
12 04/08—10/08 Gisting evaluation
13 11/08—18/08 Installation and usage documentation
for end-users (in Tatar/Russian)
  • Testvoc-lite (apertium-tat-rus/testvoc/lite$ ./testvoc.sh) for a category means taking one word per each sub-category and making the full paradigm of the word pass through the translator without debug symbols. E.g. "testvoc-lite for nouns clean" means that if we leave only one word in each of the N1, N-COMPOUND-PX etc. lexicons, they will pass through translator without [@#] errors.
  • Evaluation is taking words and performing an evaluation for post-edition word error rate (WER). The output for those words should be clean.

See also