finding
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finding:probe-based-method-is-10-cheaper-than-gradient-based-alternatives-30-vs-320

Probe-based method is ~10× cheaper than gradient-based alternatives (≈$30 vs ≈$320)

xiao-aranguri-probe-data-attribution-2026.md
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  "context": "Efficiency advantage of linear probe approach over gradient-based data attribution once training is complete.",
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    xiao-aranguri-probe-data-attribution-2026.md