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NER PII Benchmark — NerGuard Hybrid V2 (gpt-4o) × nvidia-pii
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Tier: 2
Evaluated labels: 16
  System labels: 20
  Dataset labels: 54
  Mapping applied: True

Samples: 1000
Tokens: 135894

--- Token-Level Metrics ---
  Precision (macro/micro/weighted): 0.5143 / 0.6484 / 0.7580
  Recall    (macro/micro/weighted): 0.6164 / 0.7641 / 0.7641
  F1        (macro/micro/weighted): 0.5069 / 0.7015 / 0.7321

--- Entity-Level Metrics (seqeval) ---
  Precision: 0.5952
  Recall:    0.7492
  F1:        0.6634

--- Latency ---
  Mean:   41.36 ms
  Median: 35.74 ms
  P95:    65.26 ms
  P99:    100.87 ms
  Throughput: 24.2 samples/sec

--- Per-Entity F1 Scores ---
  B-date_of_birth                P=1.0000  R=1.0000  F1=1.0000  (n=131.0)
  I-credit_debit_card            P=0.9769  R=0.9270  F1=0.9513  (n=274.0)
  B-email                        P=0.7946  R=0.9474  F1=0.8643  (n=494.0)
  B-credit_debit_card            P=0.7377  R=0.9474  F1=0.8295  (n=95.0)
  B-date                         P=0.7923  R=0.8624  F1=0.8258  (n=712.0)
  B-time                         P=0.8263  R=0.7977  F1=0.8118  (n=173.0)
  B-last_name                    P=0.9461  R=0.6565  F1=0.7752  (n=428.0)
  I-time                         P=0.9677  R=0.6452  F1=0.7742  (n=93.0)
  I-phone_number                 P=0.6379  R=0.9231  F1=0.7544  (n=208.0)
  B-first_name                   P=0.8020  R=0.6874  F1=0.7403  (n=595.0)
  I-street_address               P=0.9894  R=0.5846  F1=0.7349  (n=479.0)
  I-date                         P=0.8758  R=0.6321  F1=0.7342  (n=212.0)
  B-age                          P=0.4868  R=1.0000  F1=0.6549  (n=37.0)
  B-ssn                          P=0.4623  R=0.9423  F1=0.6203  (n=52.0)
  B-city                         P=0.5048  R=0.7536  F1=0.6046  (n=211.0)
  B-phone_number                 P=0.3930  R=0.9634  F1=0.5583  (n=246.0)
  B-postcode                     P=0.3827  R=0.9688  F1=0.5487  (n=96.0)
  I-last_name                    P=0.3333  R=1.0000  F1=0.5000  (n=1.0)
  I-city                         P=0.2480  R=0.7045  F1=0.3669  (n=44.0)
  B-street_address               P=0.3138  R=0.3224  F1=0.3181  (n=183.0)
  I-postcode                     P=0.2000  R=0.5000  F1=0.2857  (n=2.0)
  B-tax_id                       P=0.1200  R=0.5455  F1=0.1967  (n=22.0)
  B-certificate_license_number   P=0.0951  R=0.3372  F1=0.1483  (n=86.0)
  B-gender                       P=1.0000  R=0.0278  F1=0.0541  (n=36.0)
  I-first_name                   P=0.0278  R=0.2000  F1=0.0488  (n=5.0)
  I-certificate_license_number   P=0.0000  R=0.0000  F1=0.0000  (n=5.0)
  I-email                        P=0.0000  R=0.0000  F1=0.0000  (n=1.0)
  I-ssn                          P=0.0000  R=0.0000  F1=0.0000  (n=0.0)
  I-tax_id                       P=0.0000  R=0.0000  F1=0.0000  (n=1.0)

--- Per-Length Bucket ---
  short   : F1=0.8065 (n=9)
  medium  : F1=0.5579 (n=238)
  long    : F1=0.5156 (n=753)

--- Error Summary ---
  False positives: 111
  False negatives: 500