Files changed (1) hide show
  1. README.md +27 -22
README.md CHANGED
@@ -1,5 +1,5 @@
1
  ---
2
- license: mit
3
  configs:
4
  - config_name: default
5
  data_files:
@@ -35,25 +35,33 @@ dataset_info:
35
  num_examples: 45
36
  download_size: 19975985
37
  dataset_size: 20690456
 
 
 
 
 
 
 
 
 
38
  ---
39
  # Nyana-Eval Dataset
40
 
41
  ## Dataset Description
42
 
43
- **Nyana-Eval** is a compact, stratified evaluation subset for benchmarking Automatic Speech Recognition (ASR) models in Bambara. It consists of **45 audio recordings** totaling approximately **3.03 minutes** (0.05 hours), carefully selected to represent real-world linguistic and acoustic challenges in low-resource Bambara speech. This dataset is derived from the larger [RobotsMali/Bam_ASR_Eval_500](https://huggingface.co/datasets/RobotsMali/Bam_ASR_Eval_500) corpus and is optimized for quick, reproducible ASR testing.
44
 
45
  Nyana-Eval is ideal for:
46
  - Rapid evaluation of Bambara ASR models (e.g., WER/CER computation on diverse conditions).
47
  - Human-assisted qualitative analysis (e.g., semantic fidelity, code-switching handling).
48
- - Addressing gaps in low-resource settings: dialectal variations, noise, proper names, and code-mixing with French.
49
 
50
  **Key Statistics**:
51
  - **Total Samples**: 45 (balanced: 15 per source subset).
52
  - **Total Duration**: ~3.03 minutes (average ~4.0 seconds per sample).
53
- - **Audio Format**: Mono-channel WAV files at 16 kHz sampling rate.
54
  - **Languages**: Primary: Bambara (Bamana); Secondary: French code-switching (~15% of samples).
55
- - **License**: MIT License (open for research, commercial use with attribution).
56
- - **Tags**: `audio`, `speech`, `asr`, `bambara`, `bamanan`, `low-resource`, `evaluation`, `human-evaluation`, `african-languages`.
57
 
58
  Compiled by Robots Mali AI4D Lab, this dataset powers the human-comparative analysis in the [Bambara ASR Models Evaluation Report].
59
 
@@ -65,10 +73,10 @@ Nyana-Eval is a single-split dataset (default: `test`), with each entry includin
65
 
66
  | Column | Type | Description | Example Value |
67
  |-----------------|----------|-----------------------------------------------------------------------------|---------------|
68
- | `audio` | Audio | Raw audio waveform (array + sampling rate: 16 kHz) or file path. | `{"path": "1.1.wav", "array": [...], "sampling_rate": 16000}` |
69
- | `duration` | Float64 | Length of the audio clip in seconds (range: 0.62s – 15s). | 3.45 |
70
- | `references` | String | Bambara text | "nɔgɔ ye a ka tɔɔrɔ ye" |
71
- | '8 * models transcriptions' | String | Bambara text transcription | |
72
 
73
  ### Splits
74
  - **Default Split**: Full 45 samples (`test` for evaluation).
@@ -84,17 +92,17 @@ print(dataset[0]) # Example: {'audio': ..., 'duration': 3.45, 'transcription'
84
 
85
  ## Sources and Compilation
86
 
87
- Nyana-Eval is a **balanced subsample (15 per subset)** from the full 500-sample [RobotsMali/Bam_ASR_Eval_500](https://huggingface.co/datasets/RobotsMali/Bam_ASR_Eval_500) corpus (~36.69 minutes total). Selection criteria ensured diversity: voice variety (age/gender/accents), acoustic challenges (noise/volume/overlaps), and linguistic phenomena (code-switching, proper names, proverbs).
88
 
89
  **Parent Subsets Breakdown** (15 samples each in Nyana-Eval):
90
  - **Ref. 1: RobotsMali/kunkado (Hugging Face)** – 15 audios (~1.96 minutes scaled).
91
  Semi-supervised interviews and spontaneous discourse. Source: [RobotsMali/kunkado](https://huggingface.co/datasets/RobotsMali/kunkado). Focus: Dialectal variations and natural flow.
92
 
93
- - **Ref. 2: jeli-ASR street interviews subset** – 15 audios (~0.31 minutes scaled).
94
- Griot traditions and urban interviews. Emphasizes oral storytelling, cultural terms, and hesitations.
95
 
96
- - **Ref. 3: Extracts from An Bɛ Kalan app (Robots Mali)** – 15 audios (~3.34 minutes scaled).
97
- User-generated readings from the Bambara learning app. Captures learner speech with occasional errors or pauses.
98
 
99
  ## Metadata
100
 
@@ -106,13 +114,10 @@ Nyana-Eval is a **balanced subsample (15 per subset)** from the full 500-sample
106
  - **Download Size**: ~25 MB (audios + metadata).
107
  - **Ethical Notes**: Ethically sourced/anonymized; focuses on public-domain cultural speech. For research; cite Robots Mali.
108
 
109
- ### Linguistic Metadata
110
- - **Dialect Coverage**: Urban Bamana (Bamako-influenced) with rural elements.
111
- - **Phonetic Coverage**: Tones, nasals, contractions; with OOD proper names (e.g., "Sunjata," "Traoré").
112
- - **Challenges Represented**:
113
  - Code-switching: samples (e.g., "Segou ville").
 
114
  - Noise/Overlaps: (e.g., low-volume interviews, multi-speaker).
115
- - Human Eval Focus: 45 samples scored 0-3 + bonuses for fidelity, names, switching, robustness.
116
 
117
  ### Evaluation Metadata
118
  - **WER Baselines**: From report – Soloni-v2: 36.07%; QuartzNet-v0: 65.42% (greedy decoding).
@@ -127,6 +132,6 @@ Nyana-Eval is a **balanced subsample (15 per subset)** from the full 500-sample
127
  ## Related Resources
128
  - **Parent Dataset**: [RobotsMali/Bam_ASR_Eval_500](https://huggingface.co/datasets/RobotsMali/Bam_ASR_Eval_500) (full 500 samples).
129
  - **Models**: Test with [RobotsMali ASR models](https://huggingface.co/RobotsMali/models)
130
- - **App**: Collect similar data via [An Bɛ Kalan](https://play.google.com/store/apps/details?id=com.robotsmali.anbekalan).
131
 
132
- This README is self-contained; explore the attached report PDF for detailed human annotations and model rankings on these exact 45 samples!
 
1
  ---
2
+ license: cc-by-4.0
3
  configs:
4
  - config_name: default
5
  data_files:
 
35
  num_examples: 45
36
  download_size: 19975985
37
  dataset_size: 20690456
38
+ task_categories:
39
+ - automatic-speech-recognition
40
+ language:
41
+ - bm
42
+ tags:
43
+ - speech
44
+ - asr
45
+ - bambara
46
+ - low-resource
47
  ---
48
  # Nyana-Eval Dataset
49
 
50
  ## Dataset Description
51
 
52
+ **Nyana-Eval** is a compact, stratified evaluation subset for benchmarking Automatic Speech Recognition (ASR) models in Bambara. It consists of **45 audio recordings** totaling approximately **3.03 minutes**, carefully selected to represent real-world linguistic and acoustic challenges in low-resource Bambara speech. This dataset is derived from the larger [RobotsMali/Bam_ASR_Eval_500](https://huggingface.co/datasets/RobotsMali/Bam_ASR_Eval_500) corpus and is optimized for quick, reproducible human evaluation.
53
 
54
  Nyana-Eval is ideal for:
55
  - Rapid evaluation of Bambara ASR models (e.g., WER/CER computation on diverse conditions).
56
  - Human-assisted qualitative analysis (e.g., semantic fidelity, code-switching handling).
57
+ - Testing models on low-resource settings gaps: dialectal variations, noise, proper names, and code-mixing with French.
58
 
59
  **Key Statistics**:
60
  - **Total Samples**: 45 (balanced: 15 per source subset).
61
  - **Total Duration**: ~3.03 minutes (average ~4.0 seconds per sample).
62
+ - **Audio Format**: Mono-channel WAV files at 16 | 44.1k kHz sampling rate.
63
  - **Languages**: Primary: Bambara (Bamana); Secondary: French code-switching (~15% of samples).
64
+ - **License**: CC-BY-4.0 License (open for research, commercial use with attribution).
 
65
 
66
  Compiled by Robots Mali AI4D Lab, this dataset powers the human-comparative analysis in the [Bambara ASR Models Evaluation Report].
67
 
 
73
 
74
  | Column | Type | Description | Example Value |
75
  |-----------------|----------|-----------------------------------------------------------------------------|---------------|
76
+ | `audio` | Audio | Raw audio waveform (array + sampling rate: 16 | 44.1k kHz) or file path. | `{"path": "1.1.wav", "array": [...], "sampling_rate": 16000}` |
77
+ | `duration` | Float64 | Length of the audio clip in seconds (range: 0.62s – 15s). | 3.45 |
78
+ | `references` | String | Bambara text | "nɔgɔ ye a ka tɔɔrɔ ye" |
79
+ | '8 * models transcriptions' | String | ASR provised transcriptions | |
80
 
81
  ### Splits
82
  - **Default Split**: Full 45 samples (`test` for evaluation).
 
92
 
93
  ## Sources and Compilation
94
 
95
+ Nyana-Eval is a **balanced subsample (15 per subset)** from the full 500-sample [RobotsMali/Bam_ASR_Eval_500](https://huggingface.co/datasets/RobotsMali/Bam_ASR_Eval_500) corpus (~36.69 minutes total). Selection criteria ensured diversity: voice variety (age/gender/accents), acoustic challenges (noise/volume/overlaps), and linguistic phenomena (code-switching, proper names etc.)
96
 
97
  **Parent Subsets Breakdown** (15 samples each in Nyana-Eval):
98
  - **Ref. 1: RobotsMali/kunkado (Hugging Face)** – 15 audios (~1.96 minutes scaled).
99
  Semi-supervised interviews and spontaneous discourse. Source: [RobotsMali/kunkado](https://huggingface.co/datasets/RobotsMali/kunkado). Focus: Dialectal variations and natural flow.
100
 
101
+ - **Ref. 2: jeli-ASR street interviews subset** – 30 audios (~1.85 minutes).
102
+ Street interviews Subset from the jeli-asr project. Source: [jeli-asr](https://github.com/robotsmali-ai/jeli-asr/)
103
 
104
+ - **Ref. 3: Readings of Excerpts from An Bɛ Kalan app (RobotsMali)** – 220 audios (~20.06 minutes).
105
+ User-generated readings and interactions from the mobile app for Bambara learning, captures learner speech with occasional errors or pauses. source: [https://github.com/Robotsmali-ai/an-be-kalan]
106
 
107
  ## Metadata
108
 
 
114
  - **Download Size**: ~25 MB (audios + metadata).
115
  - **Ethical Notes**: Ethically sourced/anonymized; focuses on public-domain cultural speech. For research; cite Robots Mali.
116
 
117
+ ### Challenges Represented:
 
 
 
118
  - Code-switching: samples (e.g., "Segou ville").
119
+ - Proper names (e.g., "Sunjata," "Traoré").
120
  - Noise/Overlaps: (e.g., low-volume interviews, multi-speaker).
 
121
 
122
  ### Evaluation Metadata
123
  - **WER Baselines**: From report – Soloni-v2: 36.07%; QuartzNet-v0: 65.42% (greedy decoding).
 
132
  ## Related Resources
133
  - **Parent Dataset**: [RobotsMali/Bam_ASR_Eval_500](https://huggingface.co/datasets/RobotsMali/Bam_ASR_Eval_500) (full 500 samples).
134
  - **Models**: Test with [RobotsMali ASR models](https://huggingface.co/RobotsMali/models)
135
+ - **App**: Collect similar data via [An Bɛ Kalan](https://play.google.com/store/apps/details?id=org.robotsmali.literacy_app).
136
 
137
+ This README is self-contained; explore the attached report PDF for detailed human annotations and model rankings on these exact 45 samples!