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hoangbang/star-galaxy-quasar-classification

Star, Galaxy, or Quasar? Sloan Digital Sky Survey Dataset Summary A public, viewer-ready educational challenge dataset. Host-only scoring data and hidden targets are excluded. Splits Split Examples Description train 8,000 Labeled training data test 2,000 Public inputs with withheld target labels or annotations Data Fields Field Type id int64 ra float64 dec float64 u float64 g float64 r float64… See the full description on the dataset page: https://huggingface.co/datasets/hoangbang/star-galaxy-quasar-classification.

sourceHugging Faceotherupdated 2mo agoView on Hugging Face
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Dataset Card

Star, Galaxy, or Quasar? Sloan Digital Sky Survey

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Dataset Summary

A public, viewer-ready educational challenge dataset. Host-only scoring data and hidden targets are excluded.

Splits

SplitExamplesDescription
train8,000Labeled training data
test2,000Public inputs with withheld target labels or annotations

Data Fields

FieldType
idint64
rafloat64
decfloat64
ufloat64
gfloat64
rfloat64
ifloat64
zfloat64
classobject
redshiftfloat64

Labels

Not applicable.

Viewer and Loading

The standard repository layout enables the Hugging Face Dataset Viewer after processing. Load with the datasets library using hoangbang/star-galaxy-quasar-classification.

python
from datasets import load_dataset

dataset = load_dataset("hoangbang/star-galaxy-quasar-classification")

Preparation

  • —Tabular data is stored as Parquet.
  • —Image classification uses class directories and ImageFolder metadata.
  • —Object detection uses pixel-space COCO xywh metadata converted from YOLO annotations.
  • —Audio uses WAV folders and split metadata compatible with AudioFolder.
  • —groundtruth.csv, hostonly, filename maps, source archives, and local OS files are excluded.

Source, License, and Attribution

  • —Source: https://www.kaggle.com/datasets/lucidlenn/sloan-digital-sky-survey
  • —License note: See original source terms and attribution before reuse.
  • —Check original source terms before further redistribution or commercial use.

Limitations and Responsible Use

  • —Survey selection can affect class representation.
  • —Test targets are intentionally withheld.