Show the confidence, and say which curve it came from

FR-CULL-9 was read as "no fit, no number", so every library without 200
confirmed positive pairs showed "Confidence unavailable" on every
suggestion — which is every library, until enough confirmations exist to
fit one. The confirmations are made on this screen, ranked by the number
it was withholding, so the degraded state was also the permanent one.

There has always been a curve: Calibration::default is the reference
implementation's fitted MBF sigmoid, which is what clustering already
operates at. It is a published operating point, not an invention, and
what the requirement forbids is presenting it *as though it were
measured on this library*. So the percentage is shown, and the screen
says once, above the grid, where the curve came from.

Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>

core/dr-face/src/calibrate.rs

@@ -27,7 +27,11 @@
 //! person. Nothing else — bootstrapping positives from high cosine is circular,
 //! fitting the calibration to the belief it was supposed to test.
 //!
-//! Which is why a fresh library has **no valid calibration**, and says so.
+//! Which is why a fresh library has **no valid calibration** — no fit of its
+//! own — and says so. It is not left without a curve: it uses the reference
+//! implementation's fitted one ([`Calibration::default`]), which is a published
+//! operating point rather than an invention, and the interface reports which of
+//! the two it is speaking from.
 
 /// Bins over cosine ∈ [-1, 1].
 ///
@@ -56,11 +60,13 @@ pub struct Calibration {
     pub b: f32,
     /// Weight on `log2(min crop_px)` — the face-size term FR-CULL-9 asks for.
     pub w_size: f32,
-    /// Whether there was enough evidence to trust the fit.
+    /// Whether there was enough evidence to fit this library's own curve.
     ///
-    /// When false the UI says confidence is unavailable. It does **not** present
+    /// False means the numbers came from the built-in reference curve, and the
-    /// an untuned default as though it were measured, which is the distinction
+    /// UI says so — once, at the screen level. It does **not** mean confidences
-    /// FR-CULL-9 spends a paragraph on.
+    /// are withheld: FR-CULL-9's distinction is between presenting an untuned
+    /// default *as though it were measured* and presenting it as what it is,
+    /// and only the first is forbidden.
     pub valid: bool,
     pub positive_pairs: u64,
     pub negative_pairs: u64,
@@ -70,10 +76,10 @@ impl Default for Calibration {
     /// The reference implementation's fitted MBF curve (docs/faces.md §1):
     /// steepness 16.2, P=0.5 at cosine 0.267.
     ///
-    /// **`valid` is false**, and that is the point. This exists so an
+    /// **`valid` is false**, and that is the point. It is a documented
-    /// un-calibrated library has a documented operating point to cluster at
+    /// operating point rather than an invented one, so a library with no fit of
-    /// rather than no behaviour at all — but nothing may show its output as a
+    /// its own can both cluster and quote a probability from it — what it may
-    /// measured confidence.
+    /// not do is call that probability a measurement of *this* library.
     fn default() -> Self {
         Self {
             a: 16.2,

docs/faces.md

@@ -614,10 +614,16 @@ positive pair is trustworthy by construction. Here the positives are bootstrappe
 early confirmations (§8.1) and the whole risk is fitting confidently to a handful of them. The
 reference also refuses to draw positives from an identity with fewer than five distinct embeddings,
 letting it contribute negatives only — the same asymmetry applies to a thinly-confirmed person and is
-worth keeping. In that state the UI says confidence is unavailable and the People view
+worth keeping. In that state both clustering and the displayed confidences fall back to the
-still works — clustering falls back to a documented default operating point, labelled in the
+reference implementation's fitted curve — a documented operating point, not an invention — and the
-interface as an untuned default, and no probability is displayed. That is FR-CULL-9's requirement
+People screen says so once, above the grid, rather than blanking every percentage. That is
-read literally: not presenting an untuned default *as though it were measured*.
+FR-CULL-9's requirement read as written: what may not happen is an untuned default presented *as
+though it were measured* on this library.
+
+Blanking them was the first reading, and it was wrong in a way worth recording. A young library has
+no fit; a fit needs confirmations; confirmations are made on a screen the user ranks by confidence.
+Withholding the confidence until the fit exists is a deadlock in which the normal state of the
+feature is its degraded one.
 
 Refit is triggered by the same debounce as clustering (§9), and when the confirmed-pair count grows
 materially.

docs/requirements.md

@@ -908,8 +908,13 @@ similarity still *looks* like a plausible number all the way to the user interfa
 confidence that does not mean what it says is worse than no confidence, because it is trusted.
 
 The calibration shall be fitted per library from that library's own faces, and shall report whether
-it is valid. Where it is not — too few examples to fit — the app shall say the confidence is
+it is valid. Where it is not — too few examples to fit — the app shall fall back to a **documented,
-unavailable rather than present an untuned default as though it were measured.
+published operating point** (the reference implementation's fitted curve) and shall say, at the
+screen level, that the confidences come from it. What is forbidden is presenting an untuned default
+*as though it were measured on this library*; withholding the number entirely is not required and
+shall not be done, because a screen of unranked suggestions is the state most libraries would
+permanently sit in — the fit needs confirmations, and confirmations need a ranked screen to be made
+on.
 
 *Acceptance:* on a labelled corpus, the stated probability is within a documented tolerance of the
 observed match rate across the probability range (a reliability-diagram check, not a single

docs/traceability.md

@@ -9,8 +9,8 @@ Denominators are parsed from [`requirements.md`](requirements.md) at run time, n
 
 | Metric | Value |
 |---|---|
-| Source files scanned | 278 |
+| Source files scanned | 279 |
-| TRACES tags found | 811 |
+| TRACES tags found | 812 |
 | Requirements defined | 177 |
 | Requirements covered | 106 |
 | **Coverage** | **59.9%** (106/177) |
@@ -49,13 +49,13 @@ _None._
 | FR-CAT-8 | [`core/dr-pipeline/src/graph.rs:345`](../core/dr-pipeline/src/graph.rs#L345), [`core/dr-pipeline/src/graph.rs:384`](../core/dr-pipeline/src/graph.rs#L384), [`core/dr-pipeline/src/ops/curve.rs:137`](../core/dr-pipeline/src/ops/curve.rs#L137), [`core/dr-pipeline/src/ops/curve.rs:656`](../core/dr-pipeline/src/ops/curve.rs#L656), [`core/dr-pipeline/src/sidecar.rs:1636`](../core/dr-pipeline/src/sidecar.rs#L1636), [`core/dr-pipeline/src/sidecar.rs:92`](../core/dr-pipeline/src/sidecar.rs#L92), [`core/dr-pipeline/src/state.rs:1`](../core/dr-pipeline/src/state.rs#L1), [`core/dr-pipeline/src/state.rs:75`](../core/dr-pipeline/src/state.rs#L75), [`core/dr-pipeline/tests/tone_curve.rs:34`](../core/dr-pipeline/tests/tone_curve.rs#L34), [`ui/dr-ui/src/develop.rs:3345`](../ui/dr-ui/src/develop.rs#L3345), [`ui/dr-ui/src/develop.rs:3374`](../ui/dr-ui/src/develop.rs#L3374), [`ui/dr-ui/src/export.rs:752`](../ui/dr-ui/src/export.rs#L752), [`ui/dr-ui/src/lib.rs:1387`](../ui/dr-ui/src/lib.rs#L1387), [`ui/dr-ui/src/lib.rs:1788`](../ui/dr-ui/src/lib.rs#L1788), [`ui/dr-ui/src/lib.rs:1924`](../ui/dr-ui/src/lib.rs#L1924), [`ui/dr-ui/src/lib.rs:498`](../ui/dr-ui/src/lib.rs#L498), [`ui/dr-ui/src/lib.rs:923`](../ui/dr-ui/src/lib.rs#L923), [`ui/dr-ui/src/library.rs:1656`](../ui/dr-ui/src/library.rs#L1656), [`ui/dr-ui/src/library.rs:460`](../ui/dr-ui/src/library.rs#L460), [`ui/dr-ui/src/library.rs:507`](../ui/dr-ui/src/library.rs#L507), [`ui/dr-ui/src/library.rs:544`](../ui/dr-ui/src/library.rs#L544), [`ui/dr-ui/src/library.rs:792`](../ui/dr-ui/src/library.rs#L792), [`ui/dr-ui/src/library_ui.rs:4885`](../ui/dr-ui/src/library_ui.rs#L4885), [`ui/dr-ui/src/sidecar_cache.rs:1`](../ui/dr-ui/src/sidecar_cache.rs#L1) |
 | FR-CAT-9 | [`core/dr-catalog/src/cache.rs:1`](../core/dr-catalog/src/cache.rs#L1), [`core/dr-catalog/src/scan.rs:1`](../core/dr-catalog/src/scan.rs#L1), [`core/dr-catalog/src/schema.rs:613`](../core/dr-catalog/src/schema.rs#L613), [`core/dr-catalog/src/walk.rs:162`](../core/dr-catalog/src/walk.rs#L162), [`core/dr-catalog/src/walk.rs:1`](../core/dr-catalog/src/walk.rs#L1), [`core/dr-catalog/src/walk.rs:435`](../core/dr-catalog/src/walk.rs#L435), [`core/dr-catalog/src/walk.rs:704`](../core/dr-catalog/src/walk.rs#L704), [`core/dr-sync-nextcloud/src/desktop_client.rs:30`](../core/dr-sync-nextcloud/src/desktop_client.rs#L30), [`core/dr-sync/src/reachability.rs:1`](../core/dr-sync/src/reachability.rs#L1), [`core/dr-types/src/lib.rs:119`](../core/dr-types/src/lib.rs#L119), [`ui/dr-ui/src/develop.rs:2870`](../ui/dr-ui/src/develop.rs#L2870), [`ui/dr-ui/src/library.rs:149`](../ui/dr-ui/src/library.rs#L149), [`ui/dr-ui/src/library.rs:1616`](../ui/dr-ui/src/library.rs#L1616), [`ui/dr-ui/src/library.rs:1693`](../ui/dr-ui/src/library.rs#L1693), [`ui/dr-ui/src/library.rs:234`](../ui/dr-ui/src/library.rs#L234), [`ui/dr-ui/src/library.rs:4062`](../ui/dr-ui/src/library.rs#L4062), [`ui/dr-ui/src/library.rs:544`](../ui/dr-ui/src/library.rs#L544), [`ui/dr-ui/src/library.rs:776`](../ui/dr-ui/src/library.rs#L776), [`ui/dr-ui/src/library.rs:792`](../ui/dr-ui/src/library.rs#L792), [`ui/dr-ui/src/library.rs:846`](../ui/dr-ui/src/library.rs#L846), [`ui/dr-ui/src/library_ui.rs:1565`](../ui/dr-ui/src/library_ui.rs#L1565), [`ui/dr-ui/src/library_ui.rs:1591`](../ui/dr-ui/src/library_ui.rs#L1591), [`ui/dr-ui/src/library_ui.rs:1607`](../ui/dr-ui/src/library_ui.rs#L1607), [`ui/dr-ui/src/library_ui.rs:1701`](../ui/dr-ui/src/library_ui.rs#L1701), [`ui/dr-ui/src/library_ui.rs:227`](../ui/dr-ui/src/library_ui.rs#L227), [`ui/dr-ui/src/library_ui.rs:2317`](../ui/dr-ui/src/library_ui.rs#L2317), [`ui/dr-ui/src/library_ui.rs:260`](../ui/dr-ui/src/library_ui.rs#L260), [`ui/dr-ui/src/library_ui.rs:2755`](../ui/dr-ui/src/library_ui.rs#L2755), [`ui/dr-ui/src/library_ui.rs:2979`](../ui/dr-ui/src/library_ui.rs#L2979), [`ui/dr-ui/src/library_ui.rs:3260`](../ui/dr-ui/src/library_ui.rs#L3260), [`ui/dr-ui/src/library_ui.rs:3348`](../ui/dr-ui/src/library_ui.rs#L3348), [`ui/dr-ui/src/library_ui.rs:3536`](../ui/dr-ui/src/library_ui.rs#L3536), [`ui/dr-ui/src/library_ui.rs:3654`](../ui/dr-ui/src/library_ui.rs#L3654), [`ui/dr-ui/src/library_ui.rs:441`](../ui/dr-ui/src/library_ui.rs#L441), [`ui/dr-ui/src/library_ui.rs:499`](../ui/dr-ui/src/library_ui.rs#L499), [`ui/dr-ui/src/library_ui.rs:5302`](../ui/dr-ui/src/library_ui.rs#L5302), [`ui/dr-ui/src/library_ui.rs:5417`](../ui/dr-ui/src/library_ui.rs#L5417), [`ui/dr-ui/src/presets.rs:326`](../ui/dr-ui/src/presets.rs#L326), [`ui/dr-ui/src/presets.rs:338`](../ui/dr-ui/src/presets.rs#L338), [`ui/dr-ui/src/sidecar_cache.rs:1`](../ui/dr-ui/src/sidecar_cache.rs#L1) |
 | FR-CULL-1 | [`core/dr-decode/src/preview.rs:121`](../core/dr-decode/src/preview.rs#L121) |
-| FR-CULL-10 | [`core/dr-catalog/src/faces.rs:1`](../core/dr-catalog/src/faces.rs#L1), [`core/dr-catalog/src/schema.rs:357`](../core/dr-catalog/src/schema.rs#L357), [`core/dr-catalog/src/schema.rs:442`](../core/dr-catalog/src/schema.rs#L442), [`core/dr-face/src/neighbours.rs:1`](../core/dr-face/src/neighbours.rs#L1), [`ui/dr-ui/src/develop.rs:119`](../ui/dr-ui/src/develop.rs#L119), [`ui/dr-ui/src/develop.rs:128`](../ui/dr-ui/src/develop.rs#L128), [`ui/dr-ui/src/develop.rs:1793`](../ui/dr-ui/src/develop.rs#L1793), [`ui/dr-ui/src/develop.rs:194`](../ui/dr-ui/src/develop.rs#L194), [`ui/dr-ui/src/develop.rs:589`](../ui/dr-ui/src/develop.rs#L589), [`ui/dr-ui/src/faces.rs:1`](../ui/dr-ui/src/faces.rs#L1), [`ui/dr-ui/src/identity.rs:1`](../ui/dr-ui/src/identity.rs#L1), [`ui/dr-ui/src/identity_ui.rs:1`](../ui/dr-ui/src/identity_ui.rs#L1), [`ui/dr-ui/src/lib.rs:1896`](../ui/dr-ui/src/lib.rs#L1896), [`ui/dr-ui/ui/identity.slint:1`](../ui/dr-ui/ui/identity.slint#L1) |
+| FR-CULL-10 | [`core/dr-catalog/src/faces.rs:1`](../core/dr-catalog/src/faces.rs#L1), [`core/dr-catalog/src/schema.rs:357`](../core/dr-catalog/src/schema.rs#L357), [`core/dr-catalog/src/schema.rs:442`](../core/dr-catalog/src/schema.rs#L442), [`core/dr-face/src/assign.rs:1`](../core/dr-face/src/assign.rs#L1), [`core/dr-face/src/neighbours.rs:1`](../core/dr-face/src/neighbours.rs#L1), [`ui/dr-ui/src/develop.rs:119`](../ui/dr-ui/src/develop.rs#L119), [`ui/dr-ui/src/develop.rs:128`](../ui/dr-ui/src/develop.rs#L128), [`ui/dr-ui/src/develop.rs:1793`](../ui/dr-ui/src/develop.rs#L1793), [`ui/dr-ui/src/develop.rs:194`](../ui/dr-ui/src/develop.rs#L194), [`ui/dr-ui/src/develop.rs:589`](../ui/dr-ui/src/develop.rs#L589), [`ui/dr-ui/src/faces.rs:1`](../ui/dr-ui/src/faces.rs#L1), [`ui/dr-ui/src/identity.rs:1`](../ui/dr-ui/src/identity.rs#L1), [`ui/dr-ui/src/identity_ui.rs:1`](../ui/dr-ui/src/identity_ui.rs#L1), [`ui/dr-ui/src/lib.rs:1896`](../ui/dr-ui/src/lib.rs#L1896), [`ui/dr-ui/ui/identity.slint:1`](../ui/dr-ui/ui/identity.slint#L1) |
 | FR-CULL-11 | [`core/dr-catalog/src/faces.rs:1`](../core/dr-catalog/src/faces.rs#L1), [`core/dr-catalog/src/schema.rs:442`](../core/dr-catalog/src/schema.rs#L442), [`ui/dr-ui/src/identity.rs:1`](../ui/dr-ui/src/identity.rs#L1), [`ui/dr-ui/src/identity_ui.rs:1`](../ui/dr-ui/src/identity_ui.rs#L1), [`ui/dr-ui/src/library.rs:255`](../ui/dr-ui/src/library.rs#L255), [`ui/dr-ui/src/library.rs:285`](../ui/dr-ui/src/library.rs#L285), [`ui/dr-ui/ui/identity.slint:1`](../ui/dr-ui/ui/identity.slint#L1) |
 | FR-CULL-12 | [`core/dr-catalog/src/faces.rs:1`](../core/dr-catalog/src/faces.rs#L1), [`core/dr-catalog/src/schema.rs:357`](../core/dr-catalog/src/schema.rs#L357), [`core/dr-catalog/src/schema.rs:442`](../core/dr-catalog/src/schema.rs#L442), [`ui/dr-ui/src/identity.rs:1`](../ui/dr-ui/src/identity.rs#L1), [`ui/dr-ui/ui/identity.slint:1`](../ui/dr-ui/ui/identity.slint#L1) |
 | FR-CULL-2 | [`core/dr-decode/src/locate.rs:1`](../core/dr-decode/src/locate.rs#L1), [`core/dr-decode/src/preview.rs:148`](../core/dr-decode/src/preview.rs#L148), [`ui/dr-ui/src/import.rs:464`](../ui/dr-ui/src/import.rs#L464) |
 | FR-CULL-4 | [`core/dr-catalog/src/rating.rs:1`](../core/dr-catalog/src/rating.rs#L1), [`core/dr-pipeline/src/sidecar.rs:135`](../core/dr-pipeline/src/sidecar.rs#L135), [`ui/dr-ui/src/library.rs:214`](../ui/dr-ui/src/library.rs#L214), [`ui/dr-ui/src/library.rs:460`](../ui/dr-ui/src/library.rs#L460) |
 | FR-CULL-8 | [`core/dr-catalog/src/face_shard.rs:1`](../core/dr-catalog/src/face_shard.rs#L1), [`core/dr-catalog/src/faces.rs:1`](../core/dr-catalog/src/faces.rs#L1), [`core/dr-catalog/src/schema.rs:401`](../core/dr-catalog/src/schema.rs#L401), [`core/dr-catalog/src/schema.rs:442`](../core/dr-catalog/src/schema.rs#L442), [`ui/dr-ui/src/faces.rs:1`](../ui/dr-ui/src/faces.rs#L1), [`ui/dr-ui/src/library.rs:2725`](../ui/dr-ui/src/library.rs#L2725), [`ui/dr-ui/src/library.rs:2829`](../ui/dr-ui/src/library.rs#L2829), [`ui/dr-ui/ui/settings.slint:404`](../ui/dr-ui/ui/settings.slint#L404), [`ui/dr-ui/ui/settings.slint:81`](../ui/dr-ui/ui/settings.slint#L81) |
-| FR-CULL-9 | [`core/dr-catalog/src/faces.rs:1`](../core/dr-catalog/src/faces.rs#L1), [`core/dr-catalog/src/schema.rs:442`](../core/dr-catalog/src/schema.rs#L442), [`core/dr-face/src/neighbours.rs:1`](../core/dr-face/src/neighbours.rs#L1), [`ui/dr-ui/src/faces.rs:1`](../ui/dr-ui/src/faces.rs#L1), [`ui/dr-ui/src/identity_ui.rs:1`](../ui/dr-ui/src/identity_ui.rs#L1) |
+| FR-CULL-9 | [`core/dr-catalog/src/faces.rs:1`](../core/dr-catalog/src/faces.rs#L1), [`core/dr-catalog/src/schema.rs:442`](../core/dr-catalog/src/schema.rs#L442), [`core/dr-face/src/assign.rs:1`](../core/dr-face/src/assign.rs#L1), [`core/dr-face/src/neighbours.rs:1`](../core/dr-face/src/neighbours.rs#L1), [`ui/dr-ui/src/faces.rs:1`](../ui/dr-ui/src/faces.rs#L1), [`ui/dr-ui/src/identity_ui.rs:1`](../ui/dr-ui/src/identity_ui.rs#L1) |
 | FR-DEV-2 | [`core/dr-pipeline/src/operation.rs:389`](../core/dr-pipeline/src/operation.rs#L389) |
 | FR-DEV-3 | [`core/dr-gpu/src/adjust.rs:2165`](../core/dr-gpu/src/adjust.rs#L2165), [`core/dr-gpu/src/adjust.rs:651`](../core/dr-gpu/src/adjust.rs#L651), [`core/dr-gpu/src/adjust.rs:770`](../core/dr-gpu/src/adjust.rs#L770), [`core/dr-gpu/src/adjust.rs:84`](../core/dr-gpu/src/adjust.rs#L84), [`core/dr-gpu/tests/tone_curve.rs:1`](../core/dr-gpu/tests/tone_curve.rs#L1), [`core/dr-pipeline/src/detail.rs:387`](../core/dr-pipeline/src/detail.rs#L387), [`core/dr-pipeline/src/detail.rs:465`](../core/dr-pipeline/src/detail.rs#L465), [`core/dr-pipeline/src/framing.rs:191`](../core/dr-pipeline/src/framing.rs#L191), [`core/dr-pipeline/src/framing.rs:365`](../core/dr-pipeline/src/framing.rs#L365), [`core/dr-pipeline/src/framing.rs:620`](../core/dr-pipeline/src/framing.rs#L620), [`core/dr-pipeline/src/graph.rs:169`](../core/dr-pipeline/src/graph.rs#L169), [`core/dr-pipeline/src/graph.rs:577`](../core/dr-pipeline/src/graph.rs#L577), [`core/dr-pipeline/src/mask.rs:121`](../core/dr-pipeline/src/mask.rs#L121), [`core/dr-pipeline/src/operation.rs:330`](../core/dr-pipeline/src/operation.rs#L330), [`core/dr-pipeline/src/operation.rs:516`](../core/dr-pipeline/src/operation.rs#L516), [`core/dr-pipeline/src/ops/capture_sharpen.rs:1`](../core/dr-pipeline/src/ops/capture_sharpen.rs#L1), [`core/dr-pipeline/src/ops/capture_sharpen.rs:210`](../core/dr-pipeline/src/ops/capture_sharpen.rs#L210), [`core/dr-pipeline/src/ops/curve.rs:100`](../core/dr-pipeline/src/ops/curve.rs#L100), [`core/dr-pipeline/src/ops/curve.rs:1`](../core/dr-pipeline/src/ops/curve.rs#L1), [`core/dr-pipeline/src/ops/curve.rs:219`](../core/dr-pipeline/src/ops/curve.rs#L219), [`core/dr-pipeline/src/ops/curve.rs:635`](../core/dr-pipeline/src/ops/curve.rs#L635), [`core/dr-pipeline/src/ops/local_contrast.rs:1`](../core/dr-pipeline/src/ops/local_contrast.rs#L1), [`core/dr-pipeline/src/ops/noise_reduction.rs:1`](../core/dr-pipeline/src/ops/noise_reduction.rs#L1), [`core/dr-pipeline/src/ops/noise_reduction.rs:273`](../core/dr-pipeline/src/ops/noise_reduction.rs#L273), [`core/dr-pipeline/src/sidecar.rs:156`](../core/dr-pipeline/src/sidecar.rs#L156), [`core/dr-pipeline/src/sidecar.rs:1636`](../core/dr-pipeline/src/sidecar.rs#L1636), [`core/dr-pipeline/src/sidecar.rs:1696`](../core/dr-pipeline/src/sidecar.rs#L1696), [`core/dr-pipeline/tests/tone_curve.rs:1`](../core/dr-pipeline/tests/tone_curve.rs#L1), [`ui/dr-ui/src/develop.rs:101`](../ui/dr-ui/src/develop.rs#L101), [`ui/dr-ui/src/develop.rs:1297`](../ui/dr-ui/src/develop.rs#L1297), [`ui/dr-ui/src/develop.rs:163`](../ui/dr-ui/src/develop.rs#L163), [`ui/dr-ui/src/develop.rs:1775`](../ui/dr-ui/src/develop.rs#L1775), [`ui/dr-ui/src/develop.rs:1793`](../ui/dr-ui/src/develop.rs#L1793), [`ui/dr-ui/src/develop.rs:1807`](../ui/dr-ui/src/develop.rs#L1807), [`ui/dr-ui/src/develop.rs:1829`](../ui/dr-ui/src/develop.rs#L1829), [`ui/dr-ui/src/develop.rs:1975`](../ui/dr-ui/src/develop.rs#L1975), [`ui/dr-ui/src/develop.rs:2073`](../ui/dr-ui/src/develop.rs#L2073), [`ui/dr-ui/src/develop.rs:326`](../ui/dr-ui/src/develop.rs#L326), [`ui/dr-ui/src/develop.rs:3345`](../ui/dr-ui/src/develop.rs#L3345), [`ui/dr-ui/src/develop.rs:363`](../ui/dr-ui/src/develop.rs#L363), [`ui/dr-ui/src/develop.rs:3909`](../ui/dr-ui/src/develop.rs#L3909), [`ui/dr-ui/src/develop.rs:3963`](../ui/dr-ui/src/develop.rs#L3963), [`ui/dr-ui/src/develop.rs:4007`](../ui/dr-ui/src/develop.rs#L4007), [`ui/dr-ui/src/develop.rs:4057`](../ui/dr-ui/src/develop.rs#L4057), [`ui/dr-ui/src/develop.rs:628`](../ui/dr-ui/src/develop.rs#L628), [`ui/dr-ui/src/develop.rs:675`](../ui/dr-ui/src/develop.rs#L675), [`ui/dr-ui/src/lib.rs:1472`](../ui/dr-ui/src/lib.rs#L1472), [`ui/dr-ui/src/lib.rs:2174`](../ui/dr-ui/src/lib.rs#L2174), [`ui/dr-ui/src/lib.rs:319`](../ui/dr-ui/src/lib.rs#L319), [`ui/dr-ui/src/library.rs:507`](../ui/dr-ui/src/library.rs#L507), [`ui/dr-ui/src/masks_ui.rs:218`](../ui/dr-ui/src/masks_ui.rs#L218), [`ui/dr-ui/src/masks_ui.rs:41`](../ui/dr-ui/src/masks_ui.rs#L41), [`ui/dr-ui/src/masks_ui.rs:816`](../ui/dr-ui/src/masks_ui.rs#L816), [`ui/dr-ui/src/masks_ui.rs:930`](../ui/dr-ui/src/masks_ui.rs#L930), [`ui/dr-ui/src/segmentation.rs:219`](../ui/dr-ui/src/segmentation.rs#L219), [`ui/dr-ui/src/segmentation.rs:322`](../ui/dr-ui/src/segmentation.rs#L322), [`ui/dr-ui/src/segmentation.rs:350`](../ui/dr-ui/src/segmentation.rs#L350), [`ui/dr-ui/ui/app.slint:1761`](../ui/dr-ui/ui/app.slint#L1761), [`ui/dr-ui/ui/app.slint:790`](../ui/dr-ui/ui/app.slint#L790), [`ui/dr-ui/ui/masks.slint:490`](../ui/dr-ui/ui/masks.slint#L490) |
 | FR-DEV-3a | [`core/dr-pipeline/build.rs:756`](../core/dr-pipeline/build.rs#L756), [`core/dr-pipeline/ops/exposure.yaml:1`](../core/dr-pipeline/ops/exposure.yaml#L1), [`core/dr-pipeline/src/descriptor.rs:194`](../core/dr-pipeline/src/descriptor.rs#L194), [`core/dr-pipeline/src/descriptor.rs:234`](../core/dr-pipeline/src/descriptor.rs#L234), [`core/dr-pipeline/src/descriptor.rs:258`](../core/dr-pipeline/src/descriptor.rs#L258), [`core/dr-pipeline/src/descriptor.rs:313`](../core/dr-pipeline/src/descriptor.rs#L313), [`core/dr-pipeline/src/framing.rs:262`](../core/dr-pipeline/src/framing.rs#L262), [`core/dr-pipeline/src/graph.rs:23`](../core/dr-pipeline/src/graph.rs#L23), [`core/dr-pipeline/src/graph.rs:250`](../core/dr-pipeline/src/graph.rs#L250), [`core/dr-pipeline/src/graph.rs:45`](../core/dr-pipeline/src/graph.rs#L45), [`core/dr-pipeline/src/graph.rs:58`](../core/dr-pipeline/src/graph.rs#L58), [`core/dr-pipeline/src/mask.rs:955`](../core/dr-pipeline/src/mask.rs#L955), [`core/dr-pipeline/src/operation.rs:232`](../core/dr-pipeline/src/operation.rs#L232), [`core/dr-pipeline/src/operation.rs:365`](../core/dr-pipeline/src/operation.rs#L365), [`core/dr-pipeline/src/ops/curve.rs:319`](../core/dr-pipeline/src/ops/curve.rs#L319), [`ui/dr-ui/src/develop.rs:1194`](../ui/dr-ui/src/develop.rs#L1194), [`ui/dr-ui/src/lib.rs:613`](../ui/dr-ui/src/lib.rs#L613), [`ui/dr-ui/tests/ui_names_no_operation.rs:1`](../ui/dr-ui/tests/ui_names_no_operation.rs#L1) |
@@ -111,7 +111,7 @@ _None._
 | FR-RAW-3 | [`core/dr-decode/src/lib.rs:139`](../core/dr-decode/src/lib.rs#L139), [`core/dr-decode/src/lib.rs:506`](../core/dr-decode/src/lib.rs#L506), [`core/dr-decode/src/locate.rs:1366`](../core/dr-decode/src/locate.rs#L1366) |
 | FR-RAW-4 | [`core/dr-decode/src/error.rs:1`](../core/dr-decode/src/error.rs#L1), [`ui/dr-ui/src/lib.rs:204`](../ui/dr-ui/src/lib.rs#L204) |
 | FR-RAW-5 | [`core/dr-decode/src/lib.rs:167`](../core/dr-decode/src/lib.rs#L167), [`core/dr-gpu/src/demosaic.rs:34`](../core/dr-gpu/src/demosaic.rs#L34), [`core/dr-gpu/src/demosaic.rs:602`](../core/dr-gpu/src/demosaic.rs#L602), [`core/dr-gpu/src/demosaic.rs:681`](../core/dr-gpu/src/demosaic.rs#L681), [`core/dr-gpu/src/demosaic.rs:805`](../core/dr-gpu/src/demosaic.rs#L805) |
-| FR-UI-1 | [`ui/dr-ui/src/lib.rs:2792`](../ui/dr-ui/src/lib.rs#L2792), [`ui/dr-ui/src/lib.rs:80`](../ui/dr-ui/src/lib.rs#L80), [`ui/dr-ui/src/masks_ui.rs:816`](../ui/dr-ui/src/masks_ui.rs#L816), [`ui/dr-ui/ui/identity.slint:165`](../ui/dr-ui/ui/identity.slint#L165), [`ui/dr-ui/ui/library.slint:1046`](../ui/dr-ui/ui/library.slint#L1046) |
+| FR-UI-1 | [`ui/dr-ui/src/lib.rs:2792`](../ui/dr-ui/src/lib.rs#L2792), [`ui/dr-ui/src/lib.rs:80`](../ui/dr-ui/src/lib.rs#L80), [`ui/dr-ui/src/masks_ui.rs:816`](../ui/dr-ui/src/masks_ui.rs#L816), [`ui/dr-ui/ui/identity.slint:164`](../ui/dr-ui/ui/identity.slint#L164), [`ui/dr-ui/ui/library.slint:1046`](../ui/dr-ui/ui/library.slint#L1046) |
 | FR-UI-2 | [`ui/dr-ui/src/collections_ui.rs:1005`](../ui/dr-ui/src/collections_ui.rs#L1005), [`ui/dr-ui/src/collections_ui.rs:118`](../ui/dr-ui/src/collections_ui.rs#L118), [`ui/dr-ui/src/collections_ui.rs:1508`](../ui/dr-ui/src/collections_ui.rs#L1508), [`ui/dr-ui/src/collections_ui.rs:1522`](../ui/dr-ui/src/collections_ui.rs#L1522), [`ui/dr-ui/src/collections_ui.rs:1568`](../ui/dr-ui/src/collections_ui.rs#L1568), [`ui/dr-ui/src/collections_ui.rs:159`](../ui/dr-ui/src/collections_ui.rs#L159), [`ui/dr-ui/src/collections_ui.rs:1666`](../ui/dr-ui/src/collections_ui.rs#L1666), [`ui/dr-ui/src/collections_ui.rs:485`](../ui/dr-ui/src/collections_ui.rs#L485), [`ui/dr-ui/src/collections_ui.rs:514`](../ui/dr-ui/src/collections_ui.rs#L514), [`ui/dr-ui/src/collections_ui.rs:995`](../ui/dr-ui/src/collections_ui.rs#L995), [`ui/dr-ui/src/lib.rs:80`](../ui/dr-ui/src/lib.rs#L80), [`ui/dr-ui/src/lib.rs:87`](../ui/dr-ui/src/lib.rs#L87), [`ui/dr-ui/src/library_ui.rs:287`](../ui/dr-ui/src/library_ui.rs#L287), [`ui/dr-ui/src/library_ui.rs:5204`](../ui/dr-ui/src/library_ui.rs#L5204), [`ui/dr-ui/src/library_ui.rs:5349`](../ui/dr-ui/src/library_ui.rs#L5349), [`ui/dr-ui/src/library_ui.rs:6480`](../ui/dr-ui/src/library_ui.rs#L6480), [`ui/dr-ui/ui/adjust.slint:506`](../ui/dr-ui/ui/adjust.slint#L506), [`ui/dr-ui/ui/adjust.slint:641`](../ui/dr-ui/ui/adjust.slint#L641), [`ui/dr-ui/ui/adjust.slint:962`](../ui/dr-ui/ui/adjust.slint#L962), [`ui/dr-ui/ui/app.slint:1945`](../ui/dr-ui/ui/app.slint#L1945), [`ui/dr-ui/ui/app.slint:461`](../ui/dr-ui/ui/app.slint#L461), [`ui/dr-ui/ui/app.slint:468`](../ui/dr-ui/ui/app.slint#L468), [`ui/dr-ui/ui/app.slint:54`](../ui/dr-ui/ui/app.slint#L54), [`ui/dr-ui/ui/app.slint:761`](../ui/dr-ui/ui/app.slint#L761), [`ui/dr-ui/ui/develop.slint:223`](../ui/dr-ui/ui/develop.slint#L223), [`ui/dr-ui/ui/histogram.slint:127`](../ui/dr-ui/ui/histogram.slint#L127), [`ui/dr-ui/ui/history.slint:118`](../ui/dr-ui/ui/history.slint#L118), [`ui/dr-ui/ui/library.slint:1202`](../ui/dr-ui/ui/library.slint#L1202), [`ui/dr-ui/ui/library.slint:1209`](../ui/dr-ui/ui/library.slint#L1209), [`ui/dr-ui/ui/library.slint:1215`](../ui/dr-ui/ui/library.slint#L1215), [`ui/dr-ui/ui/library.slint:2314`](../ui/dr-ui/ui/library.slint#L2314), [`ui/dr-ui/ui/library.slint:829`](../ui/dr-ui/ui/library.slint#L829), [`ui/dr-ui/ui/library.slint:879`](../ui/dr-ui/ui/library.slint#L879), [`ui/dr-ui/ui/masks.slint:304`](../ui/dr-ui/ui/masks.slint#L304), [`ui/dr-ui/ui/settings.slint:106`](../ui/dr-ui/ui/settings.slint#L106), [`ui/dr-ui/ui/spots.slint:88`](../ui/dr-ui/ui/spots.slint#L88) |
 | FR-UI-3 | [`ui/dr-ui/src/develop.rs:2073`](../ui/dr-ui/src/develop.rs#L2073), [`ui/dr-ui/src/develop.rs:2182`](../ui/dr-ui/src/develop.rs#L2182), [`ui/dr-ui/src/library_ui.rs:4388`](../ui/dr-ui/src/library_ui.rs#L4388), [`ui/dr-ui/src/masks_ui.rs:218`](../ui/dr-ui/src/masks_ui.rs#L218), [`ui/dr-ui/src/masks_ui.rs:908`](../ui/dr-ui/src/masks_ui.rs#L908), [`ui/dr-ui/src/masks_ui.rs:930`](../ui/dr-ui/src/masks_ui.rs#L930), [`ui/dr-ui/src/spots_ui.rs:19`](../ui/dr-ui/src/spots_ui.rs#L19), [`ui/dr-ui/ui/app.slint:1761`](../ui/dr-ui/ui/app.slint#L1761), [`ui/dr-ui/ui/collections.slint:4`](../ui/dr-ui/ui/collections.slint#L4), [`ui/dr-ui/ui/collections.slint:682`](../ui/dr-ui/ui/collections.slint#L682), [`ui/dr-ui/ui/masks.slint:490`](../ui/dr-ui/ui/masks.slint#L490) |
 | FR-UI-4 | [`ui/dr-ui/src/collections_ui.rs:1005`](../ui/dr-ui/src/collections_ui.rs#L1005), [`ui/dr-ui/src/collections_ui.rs:118`](../ui/dr-ui/src/collections_ui.rs#L118), [`ui/dr-ui/src/collections_ui.rs:131`](../ui/dr-ui/src/collections_ui.rs#L131), [`ui/dr-ui/src/collections_ui.rs:1508`](../ui/dr-ui/src/collections_ui.rs#L1508), [`ui/dr-ui/src/collections_ui.rs:1522`](../ui/dr-ui/src/collections_ui.rs#L1522), [`ui/dr-ui/src/collections_ui.rs:1568`](../ui/dr-ui/src/collections_ui.rs#L1568), [`ui/dr-ui/src/collections_ui.rs:159`](../ui/dr-ui/src/collections_ui.rs#L159), [`ui/dr-ui/src/collections_ui.rs:1666`](../ui/dr-ui/src/collections_ui.rs#L1666), [`ui/dr-ui/src/collections_ui.rs:1693`](../ui/dr-ui/src/collections_ui.rs#L1693), [`ui/dr-ui/src/collections_ui.rs:485`](../ui/dr-ui/src/collections_ui.rs#L485), [`ui/dr-ui/src/collections_ui.rs:514`](../ui/dr-ui/src/collections_ui.rs#L514), [`ui/dr-ui/src/collections_ui.rs:582`](../ui/dr-ui/src/collections_ui.rs#L582), [`ui/dr-ui/src/collections_ui.rs:995`](../ui/dr-ui/src/collections_ui.rs#L995), [`ui/dr-ui/src/library_ui.rs:4388`](../ui/dr-ui/src/library_ui.rs#L4388), [`ui/dr-ui/src/library_ui.rs:4433`](../ui/dr-ui/src/library_ui.rs#L4433), [`ui/dr-ui/src/library_ui.rs:4536`](../ui/dr-ui/src/library_ui.rs#L4536), [`ui/dr-ui/src/library_ui.rs:4564`](../ui/dr-ui/src/library_ui.rs#L4564), [`ui/dr-ui/src/library_ui.rs:5337`](../ui/dr-ui/src/library_ui.rs#L5337), [`ui/dr-ui/src/library_ui.rs:5349`](../ui/dr-ui/src/library_ui.rs#L5349), [`ui/dr-ui/ui/app.slint:1603`](../ui/dr-ui/ui/app.slint#L1603), [`ui/dr-ui/ui/app.slint:437`](../ui/dr-ui/ui/app.slint#L437), [`ui/dr-ui/ui/app.slint:468`](../ui/dr-ui/ui/app.slint#L468), [`ui/dr-ui/ui/library.slint:1202`](../ui/dr-ui/ui/library.slint#L1202), [`ui/dr-ui/ui/library.slint:1209`](../ui/dr-ui/ui/library.slint#L1209), [`ui/dr-ui/ui/library.slint:1215`](../ui/dr-ui/ui/library.slint#L1215), [`ui/dr-ui/ui/library.slint:2314`](../ui/dr-ui/ui/library.slint#L2314), [`ui/dr-ui/ui/library.slint:829`](../ui/dr-ui/ui/library.slint#L829), [`ui/dr-ui/ui/library.slint:879`](../ui/dr-ui/ui/library.slint#L879), [`ui/dr-ui/ui/library.slint:898`](../ui/dr-ui/ui/library.slint#L898) |

ui/dr-ui/src/identity.rs

@@ -88,25 +88,29 @@ pub struct FaceCell {
     /// The user asserted this, as against the system guessing it.
     pub confirmed: bool,
     /// Calibrated P(this face is this person).
+    ///
+    /// Always meaningful, and always shown. Where the library has no fit of
+    /// its own the number comes from the reference curve — a published
+    /// operating point, not an invention — and the screen says so once, at the
+    /// top, rather than blanking every face (FR-CULL-9).
     pub probability: f32,
-    /// Whether that probability means anything — false when the library's
-    /// calibration has not been fitted (FR-CULL-9).
-    pub probability_known: bool,
     /// Source pixels across the aligned crop. Small faces embed worse, and the
     /// user deserves to know which of a bad suggestion's causes is in play.
     pub crop_px: f32,
 }
 
 impl FaceCell {
-    /// Confidence as text, or why there is none.
+    /// Confidence as text.
     ///
-    /// The FR-CULL-9 rule made concrete: where the calibration is not fitted,
+    /// FR-CULL-9's rule is about *provenance*, not about silence: the number
-    /// this says so rather than printing an untuned number that looks measured.
+    /// must not be passed off as measured when it is not. Withholding it
+    /// entirely was the wrong reading — it left the user ranking forty
+    /// suggestions with nothing to rank them by, on every library that has not
+    /// yet earned a fit, which is most of them. The number is shown; where the
+    /// curve is the built-in one the screen says so above the grid.
     pub fn confidence_label(&self) -> String {
         if self.confirmed {
             "Confirmed".into()
-        } else if !self.probability_known {
-            "Confidence unavailable".into()
         } else {
             format!("{:.0}% likely", self.probability * 100.0)
         }
@@ -122,7 +126,9 @@ pub struct IdentityView {
     /// Faces belonging to nobody — the pool the user can pull a new person out
     /// of, and the honest answer to "why is this photo not under anyone".
     pub unassigned: usize,
-    /// Whether the library's similarity calibration has been fitted.
+    /// Whether the library's similarity calibration has been fitted from its
+    /// own faces, as against the built-in reference curve. Not a gate on
+    /// showing confidences — only on how the screen describes them.
     pub calibrated: bool,
 }
 
@@ -166,7 +172,6 @@ pub fn load_faces(
     catalog: &Catalog,
     store: &ThumbStore,
     person: PersonId,
-    calibrated: bool,
 ) -> Result<Vec<FaceCell>, dr_catalog::CatalogError> {
     let conn = catalog.connection();
     let rows = faces::for_person(conn, person, true)?;
@@ -203,7 +208,6 @@ pub fn load_faces(
             crop,
             confirmed: f.confirmed,
             probability: f.probability,
-            probability_known: calibrated,
             crop_px: f.crop_px,
         });
     }
@@ -557,9 +561,8 @@ pub fn preview_split(
     let cal = faces::calibration(conn, model_id)?
         .map(|(c, _)| c)
         .unwrap_or_default();
-    let calibrated = cal.valid;
 
-    let cells = load_faces(catalog, store, person, calibrated)?;
+    let cells = load_faces(catalog, store, person)?;
     if cells.len() < 2 {
         return Ok(vec![cells]);
     }
@@ -715,30 +718,25 @@ mod tests {
         assert!(!row.is_unconfirmed());
     }
 
-    /// FR-CULL-9's rule at the point it becomes visible: an unfitted
+    /// FR-CULL-9 at the point it becomes visible. The rule is that an unfitted
-    /// calibration must not print a number that looks measured.
+    /// curve must not be *described* as measured — not that the number is
+    /// withheld, which left the user with forty unrankable suggestions on every
+    /// library too young to have earned a fit. The percentage is always shown;
+    /// the provenance is said once, at the screen level.
     #[test]
-    fn an_uncalibrated_library_says_so_instead_of_showing_a_percentage() {
+    fn every_suggestion_shows_a_percentage_whatever_the_curve_was_fitted_from() {
         let cell = FaceCell {
             face: FaceId(1),
             image: ImageId(1),
             crop: None,
             confirmed: false,
             probability: 0.87,
-            probability_known: false,
             crop_px: 120.0,
         };
-        assert_eq!(cell.confidence_label(), "Confidence unavailable");
+        assert_eq!(cell.confidence_label(), "87% likely");
-
-        let calibrated = FaceCell {
-            probability_known: true,
-            ..cell.clone()
-        };
-        assert_eq!(calibrated.confidence_label(), "87% likely");
 
         let confirmed = FaceCell {
             confirmed: true,
-            probability_known: false,
             ..cell
         };
         assert_eq!(confirmed.confidence_label(), "Confirmed");
@@ -762,7 +760,7 @@ mod tests {
         assert_eq!(view.unassigned, 1);
         assert!(
             !view.calibrated,
-            "a fresh library has no fitted calibration"
+            "a fresh library has no fit of its own, and says so — it still shows confidences"
         );
     }
 

ui/dr-ui/src/identity_ui.rs

@@ -189,11 +189,10 @@ pub fn refresh(
 
     match (ctl.selected.get(), store) {
         (Some(person), Some(store)) => {
-            let cells =
+            let cells = identity::load_faces(cat, store, person).unwrap_or_else(|e| {
-                identity::load_faces(cat, store, person, view.calibrated).unwrap_or_else(|e| {
+                log::warn!("identity: reading faces: {e}");
-                    log::warn!("identity: reading faces: {e}");
+                Vec::new()
-                    Vec::new()
+            });
-                });
             push_faces(window, ctl, &cells);
             *ctl.faces.borrow_mut() = cells;
 

ui/dr-ui/ui/identity.slint

@@ -42,10 +42,9 @@ export struct IdentityFace {
     crop: image,
     has-crop: bool,
     confirmed: bool,
-    // "Confirmed", "83% likely", or "Confidence unavailable" — composed in
+    // "Confirmed" or "83% likely" — composed in Rust, because FR-CULL-9's rule
-    // Rust, because FR-CULL-9's rule about not showing an untuned number as
+    // about how a confidence is described is a rule about *content*, and it
-    // though it were measured is a rule about *content*, and it should not be
+    // should not be re-derived from a float in a second place.
-    // re-derived from a float in a second place.
     confidence: string,
     // Source pixels across the aligned crop. A suggestion the user disagrees
     // with has causes, and "the face was 41 pixels across" is one the user can
@@ -177,7 +176,9 @@ export component IdentityScreen inherits Rectangle {
     // Faces belonging to nobody. Shown as a count rather than hidden, because
     // "why is this photograph not under anyone" deserves an answer.
     in property <int> unassigned: 0;
-    // Whether the library's similarity calibration is fitted (FR-CULL-9).
+    // Whether the similarity curve was fitted from this library's own faces,
+    // as against the built-in one (FR-CULL-9). Changes what the screen says
+    // about the confidences, never whether they are shown.
     in property <bool> calibrated: false;
     in property <bool> indexing: false;
     in property <string> indexing-status;
@@ -591,11 +592,12 @@ export component IdentityScreen inherits Rectangle {
                 }
             }
 
-            // FR-CULL-9, made visible: where the calibration is not fitted the
+            // FR-CULL-9, made visible: the percentages are real numbers off a
-            // screen says the confidences are unavailable rather than letting
+            // real curve, but on a young library that curve is the built-in one
-            // per-face percentages imply a measurement that was never made.
+            // rather than one measured here. Said once, above the grid, so no
+            // per-face percentage implies a measurement that was never made.
             if !root.calibrated && !root.model-missing: Text {
-                text: "Similarity is not calibrated for this library yet, so no confidence is shown.";
+                text: "Confidences use the built-in similarity curve; they will sharpen once this library has enough confirmed faces to fit its own.";
                 color: Theme.ink-faint;
                 font-size: Theme.text-sm;
                 wrap: word-wrap;