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
i	float64
z	float64
class	object
redshift	float64

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.

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.
• ground_truth.csv, host_only, 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.