Update README.md

README.md

@@ -36,7 +36,12 @@ license: cc-by-4.0
 
 This dataset is a postprocessed version of the [IPA-CHILDES](https://huggingface.co/datasets/phonemetransformers/IPA-CHILDES) dataset. In particular,
 the following changes have been implemented:
-  - column `lang` was added to make the language code (ISO 639-1/2) accessible during training/inference time
+  - column `processed_gloss` dropped as it duplicates information of `gloss` up to punctuation
+  - column `gloss` renamed as `sentence`, and column `ipa_transcription` renamed as `ipa_g2p_plus` (cf. [G2P+](https://github.com/codebyzeb/g2p-plus))
+  - column `lang` added to make [IETF language tags](https://www.w3.org/International/articles/language-tags/) accessible for training and inference; language tags normalized by the [langcodes](https://github.com/georgkrause/langcodes) package
+  - columns `ipa_espeak` and `ipa_epitran` added, containing IPA transcriptions of `sentence` by the phonemizers
+  [espeak-ng](https://github.com/espeak-ng/espeak-ng) and [Epitran](https://github.com/dmort27/epitran), respectively
+  - columns `espeak_lang_code` and `epitran_lang_code` were added, containing language codes as conventioned by `espeak-ng` and `Epitran`, respectively
   - word boundary marker was changed from `WORD_BOUNDARY` to the character `|`
   - a train/test split is now provided