Google Summer of Code/Midterm report 2011

Language pairs

For language pairs, we have two tasks, for some pairs the task was to translate a news article without any diagnostics and evaluate the output. For the other pairs, the task was to create morphological analysers with 80% coverage.

Turkish → Azerbaijani

See also: apertium-tr-az/dev/midterm

Statistics about input files
-------------------------------------------------------
Number of words in reference: 356
Number of words in test: 364
Number of unknown words (marked with a star) in test: 4
Percentage of unknown words: 1.10 %

Results when removing unknown-word marks (stars)
-------------------------------------------------------
Edit distance: 52
Word error rate (WER): 14.29 %
Number of position-independent word errors: 50
Position-independent word error rate (PER): 13.74 %

Statistics about the translation of unknown words
-------------------------------------------------------
Number of unknown words which were free rides: 1
Percentage of unknown words that were free rides: 25.00 %

Turkish → Kyrgyz

See also: apertium-tr-ky/dev/midterm

Statistics about input files
-------------------------------------------------------
Number of words in reference: 380
Number of words in test: 371
Number of unknown words (marked with a star) in test: 5
Percentage of unknown words: 1.35 %

Results when removing unknown-word marks (stars)
-------------------------------------------------------
Edit distance: 209
Word error rate (WER): 56.33 %
Number of position-independent word errors: 197
Position-independent word error rate (PER): 53.10 %

Statistics about the translation of unknown words
-------------------------------------------------------
Number of unknown words which were free rides: 0
Percentage of unknown words that were free rides: 0.00 %

Serbo-Croatian → Macedonian

Statistics about input files
-------------------------------------------------------
Number of words in reference: 456
Number of words in test: 462
Number of unknown words (marked with a star) in test: 2
Percentage of unknown words: 0.43 %

Results when removing unknown-word marks (stars)
-------------------------------------------------------
Edit distance: 303
Word error rate (WER): 65.58 %
Number of position-independent word errors: 243
Position-independent word error rate (PER): 52.60 %

Statistics about the translation of unknown words
-------------------------------------------------------
Number of unknown words which were free rides: 0
Percentage of unknown words that were free rides: 0.00 %

Slovenian → Spanish

Statistics about input files
-------------------------------------------------------
Number of words in reference: 487
Number of words in test: 454
Number of unknown words (marked with a star) in test: 39
Percentage of unknown words: 8.59 %

Results when removing unknown-word marks (stars)
-------------------------------------------------------
Edit distance: 438
Word error rate (WER): 96.48 %
Number of position-independent word errors: 398
Position-independent word error rate (PER): 87.67 %

Statistics about the translation of unknown words
-------------------------------------------------------
Number of unknown words which were free rides: 11
Percentage of unknown words that were free rides: 28.21 %