Datasets:
Dataset Card for ChaLL
Table of Contents
- Table of Contents
- Dataset Description
- Dataset Structure
- Dataset Creation
- Considerations for Using the Data
- Additional Information
Dataset Description
- Homepage:
- Repository:
- Paper:
- Leaderboard:
- Point of Contact:
Dataset Summary
The dataset comprises audio recordings featuring spontaneous speech from young Swiss learners of English, specifically from students in grades 4 to 6. The audio data was collected during engaging language activities designed to elicit natural speech patterns and includes corresponding verbatim transcripts where learners' errors are annotated. The learners participated in a variety of tasks such as role plays, guessing games, and mock interviews, providing a rich source of authentic conversational data.
The transcripts were prepared by a professional transcription service, and each recording was associated with detailed metadata, including school grade, recording conditions, and error annotations.
Access to the dataset is regulated to ensure the confidentiality and ethical use of the sensitive data.
[TDB Data Access]
Supported Tasks and Leaderboards
[More Information Needed]
Languages
The primary language represented in this dataset is English, specifically as spoken by Swiss children who are learners of the language. This includes a variety of accents and dialectal influences from the German-speaking regions of Switzerland.
Dataset Structure
Data Instances
A typical data instance in this dataset include an audio file, its full transcription, error annotations, and associated metadata such as the speaker's grade level and recording conditions.
Data Fields
[More Information Needed]
Data Splits
[More Information Needed]
Dataset Creation
Curation Rationale
The dataset was curated to address the lack of resources for developing ASR systems that can handle the unique characteristics of children's speech, especially non-native English speakers, and to facilitate the development of educational tools that provide corrective feedback on language learning.
Source Data
Initial Data Collection and Normalization
Audio recordings were collected in controlled environments mimicking naturalistic settings to elicit genuine conversational speech from children. The recordings were then annotated professionally to include detailed error tags.
Who are the source language producers?
The language producers are Swiss children from grades 4 to 6, engaged in language learning activities designed to elicit natural speech.
Annotations
Annotation process
[More Information Needed]
Who are the annotators?
Transcriptions and error annotations were performed by a professional service, following strict guidelines to ensure accuracy and consistency in error marking.
Personal and Sensitive Information
The dataset contains audio recordings of children, and all personal identifiers have been removed to protect privacy. Access to the data is restricted and requires approval to ensure ethical use.
Considerations for Using the Data
Social Impact of Dataset
The dataset supports the development of educational tools that could enhance language learning for children, providing an important resource for educational technology.
Discussion of Biases
Given the specific demographic (Swiss German-speaking schoolchildren), the dataset may not generalize well to other forms of English or to speakers from different linguistic or cultural backgrounds.
Other Known Limitations
[More Information Needed]
Additional Information
Dataset Curators
The dataset was curated by researchers at PHZH, UZH and Zhaw, with collaboration from local schools in Switzerland.
Licensing Information
[More Information Needed]
Citation Information
[More Information Needed]
Contributions
Thanks to @mict-zhaw for adding this dataset.