UniverseTBD/legacysurvey_hsc_embeddings

Legacy Survey ↔ HSC Embeddings (The Platonic Universe)

Precomputed cross-survey embeddings for matched sources in Legacy Survey and HSC. Each row is one object with multiple backbone embeddings for both surveys (paired by suffixes _legacysurvey and _hsc).

Examples of columns (see Viewer for full list):

• —AstroPT: astropt_15m_hsc, astropt_15m_legacysurvey, astropt_95m_*, astropt_850m_*
• —ConvNeXt: convnext_nano_*, convnext_tiny_*, convnext_base_*, convnext_large_*
• —DINOv2: dino_small_*, dino_base_*, dino_large_*, dino_giant_*
• —I-JEPA: ijepa_huge_*, ijepa_giant_*
• —ViT: vit_base_*, vit_large_*, vit_huge_*
• —Identifier: legacysurvey_object_id

Load in Python

from datasets import load_dataset
import numpy as np

ds = load_dataset("UniverseTBD/legacysurvey_hsc_embeddings", split="train")
print("Columns:", ds.column_names[:10], "...")
row = ds[0]