Data Analysis
Dataset Imbalance Detector & Resampler
Detect class imbalance in CSV or JSON datasets, compare resampling strategies, and preview a balanced output dataset
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Quick start
Call this tool from your code in three languages.
cURL
# 1) Request a presigned URL → returns { uploadUrl, storageKey }
curl -X POST 'https://api.elysiatools.com/api/upload/presign/dataset-imbalance-detector-resampler' \
-H 'Content-Type: application/json' \
-d '{"filename":"datasetFile.ext","contentType":"application/octet-stream","size":12345}'
# 2) PUT the file bytes directly to the presigned uploadUrl
curl -X PUT '<presigned uploadUrl>' \
--data-binary @/path/to/file.ext
# 3) Call the tool, passing the returned storageKey for each file field
curl -X POST 'https://api.elysiatools.com/en/api/tools/dataset-imbalance-detector-resampler' \
-F 'datasetInput=id,label,amount
1,normal,20
2,normal,21
3,normal,19
4,normal,22
5,fraud,300' \
-F 'datasetFile=uploads/2026/01/01/your-tool-1700000000000-abc123.ext' \
-F 'labelColumn=label' \
-F 'strategy=oversample' \
-F 'exportFormat=json' \
-F 'previewRows=10'