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wav2vec2-bloom-speech-boz

Model description

Homepage: SIL AI
Point of Contact: SIL AI email
Source Data: Bloom Library

This model is a fine-tuned version of facebook/wav2vec2-xls-r-300m on the SIL-AI/bloom-speech - BOZ (Bozo, Tieyaxo) dataset. It achieves the following results on the evaluation set:

Loss: 0.6363
Wer: 0.3078
Cer: 0.0835

Users should refer to the original model for tutorials on using a trained model for inference.

Intended uses & limitations

Users of this model must abide by the SIL RAIL-M License.

This model is created as a proof of concept and no guarantees are made regarding the performance of the model is specific situations.

Training and evaluation data

Training, Validation, and Test datasets were generated from the same corpus, ensuring that no duplicate files were used.

Training procedure

Standard finetuning of XLS-R was used based on the examples in the Hugging Face Transformers Github

Training hyperparameters

The following hyperparameters were used during training:

learning_rate: 0.0003
train_batch_size: 16
eval_batch_size: 8
seed: 42
gradient_accumulation_steps: 2
total_train_batch_size: 32
optimizer: Adam with betas=(0.9,0.999) and epsilon=1e-08
lr_scheduler_type: linear
lr_scheduler_warmup_steps: 250
num_epochs: 1000.0
mixed_precision_training: Native AMP

Training results

Training Loss	Epoch	Step	Validation Loss	Wer	Cer
No log	19.22	250	0.5364	0.4952	0.1337
2.125	38.44	500	0.5503	0.3817	0.1015
2.125	57.67	750	0.6261	0.3557	0.0958
0.0839	76.89	1000	0.6022	0.3502	0.0931
0.0839	96.15	1250	0.6244	0.3324	0.0895
0.0438	115.37	1500	0.6471	0.3242	0.0847
0.0438	134.59	1750	0.6664	0.3420	0.0931
0.03	153.81	2000	0.6629	0.3133	0.0859
0.03	173.07	2250	0.6339	0.3105	0.0832
0.0247	192.3	2500	0.6363	0.3078	0.0835
0.0247	211.52	2750	0.6655	0.2996	0.0808
0.0191	230.74	3000	0.6656	0.3256	0.0880
0.0191	249.96	3250	0.7000	0.3092	0.0856
0.0152	269.22	3500	0.7301	0.3119	0.0871

Framework versions

Transformers 4.21.0.dev0
Pytorch 1.9.0+cu111
Datasets 2.2.2
Tokenizers 0.12.1

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Inference Examples

Automatic Speech Recognition

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Evaluation results

Test WER on Bloom Speech boz
self-reported

30.780
Test CER on Bloom Speech boz
self-reported

8.350

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