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OSGKeyboard/ModelTraining/ClipboardSemantics/README.md
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Rocky e5a83843db Expand onboarding and adaptive keyboard intelligence
Add resilient usage analytics, OOBE gateway flows, clipboard semantic ranking, purchase recovery, style learning, and managed current-information search.
2026-08-22 16:33:18 +08:00

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# Clipboard semantic models
This directory contains the reproducible training inputs and evaluation output
for OSGKeyboard's fully local clipboard analyzer.
## Scope
The model suite predicts four independent intents (`task`, `question`,
`invitation`, and `complaint`) plus three-way sentiment. Apple data detectors
remain responsible for dates, addresses, phone numbers, and URLs; `NLTagger`
provides best-effort person and organization names.
The corpus contains 6,334 Chinese and English records:
- 4,100 generated training records
- 1,080 generated validation records
- 1,080 template-held-out test records
- 74 manually authored golden records
No user clipboard content is included.
## Reproduce
```bash
python3 Scripts/clipboard_semantics/generate_corpus.py
xcrun swift Scripts/clipboard_semantics/train_models.swift
```
The trainer balances labels, trains maxEnt and BERT candidates, calibrates
high-precision thresholds, writes detailed errors to `evaluation-report.json`,
and copies the selected models into
`OSGKeyboardShared/Resources/ClipboardSemantics`.
## Deployment decision
Only maxEnt models are eligible for keyboard automatic routing. Create ML BERT
transfer models depend on `NLContextualEmbedding` assets that are not guaranteed
to exist in a simulator or keyboard-extension runtime, so they remain evaluation
candidates only.
The selected task, question, and invitation models passed the automatic-routing
precision gates. The complaint model is packaged for further evaluation but its
automatic-routing flag remains disabled because golden-set precision is 88.89%,
below the 90% release gate. Sentiment returns `unknown` unless confidence and
top-two margin checks both pass.
Synthetic results are not treated as production truth. Real opt-in, anonymized
or manually reviewed examples are still required before widening labels or
lowering thresholds.