PII-Masking-Work-PWI-400K: Multilingual Personal and Work Information for Privacy Masking

418,580 text entries with 2,305,517 annotations for personally identifiable information (PII) across 30 languages and 37 regions, created by Ai4Privacy. The dataset is part of the larger PII-Masking-3M corpus and was last updated on June 3, 2026.

Use Cases

• Train PII detection models based on the 26 annotation labels mentioned in the description.
• Benchmark multilingual NER systems across the 30 languages covered.
• Develop privacy masking tools for HR and work-related documents based on the described personal and work information focus.
• Study geographic variations in PII formats across the 37 regions included.

Strengths

• 418,580 text entries provide a substantial corpus for model training.
• 2,305,517 annotations offer detailed ground truth for PII spans.
• Coverage of 30 languages and 37 regions suggests broad linguistic and geographic diversity.

Limitations

• Column-level documentation is absent; field semantics must be inferred after download.
• Row count is known, but specific data formats and file structures are unknown.
• Description metadata is limited; actual data quality requires manual inspection after download.

Provenance

Source

Ai4Privacy

Collection Method

Part of the PII-Masking-3M corpus; specific collection method is not detailed.

Freshness

Last updated 2026-06-03 07:26:01; freshness should be verified.

Geography

Global, with specific mention of Asia Pacific regions among 37 total regions.