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first visual panel baseline

zenith-008negativecomplete

Can a compact CPU ridge classifier trained on masked Small-UI panel tiles generalize from two development batches to a recognition-disabled frozen holdout captured during a live world boss?

blinded-reviewcomputer-visionguild-wars-2holdoutnegative-resultpanel-recognitionprivacy

Labnote 008: first visual panel baseline

Question

Can a compact CPU ridge classifier trained on masked Small-UI panel tiles generalize from two development batches to a recognition-disabled frozen holdout captured during a live world boss?

Method

  • Development set: 18 visually reviewed samples from batches 001 and 002.
  • Frozen holdout: 12 samples collected with recognition disabled.
  • Holdout composition: 2 closed, 2 Inventory-only, 3 Hero-only, and 5 with
  • Hero plus Inventory.

  • Input: overlapping left and center tiles after structural chat and party masks.
  • Features: pooled luminance, horizontal/vertical gradients, local contrast,
  • and luminance histograms.

  • Model: independent regularized linear ridge outputs for Hero and Inventory.
  • Decision threshold: 0.5, fixed before the holdout run.

Result

MetricResult
Exact panel-set accuracy4/12 (33.3%)
Hero true positives7
Hero false positives4
Hero false negatives0
Inventory true positives3
Inventory false positives2
Inventory false negatives4

Decision

Reject the global pooled-image baseline. It captured Hero-like darkness and world-boss scene structure rather than sufficiently local panel evidence, while Inventory geometry varied too much for the small corpus. The frozen holdout is spent and must never be reused for feature selection, threshold selection, or model promotion.

Continue with localized structural evidence such as the Hero header/icon rail and Inventory grid/header. Gather broader development data, then freeze a new holdout before the next evaluation.