MatrAIx2026/MatrAIx_Persona_1M

MatrAIx Persona 1M 999,847 personas, each described by 1,290 categorical attributes. 599,847 are derived from real records, 400,000 are synthetic. 10 Zstandard Parquet shards, 4.17 GB. Read it with pyarrow, not datasets Attributes are packed: one persona's 1,290 attributes are 645 bytes of 4-bit codes, low nibble first. datasets cannot open these files at all. Use pyarrow and decode against persona_codes.schema.json. import json, pyarrow.parquet as pq schema =… See the full description on the dataset page: https://huggingface.co/datasets/MatrAIx2026/MatrAIx_Persona_1M.

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