[feat] HSTUMatch: scalar item-tower export view#518

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tiankongdeguiji merged 17 commits into

alibaba:masterfrom

tiankongdeguiji:feat/hstu-match-scalar-item-export

May 21, 2026

Commits on May 20, 2026

[fix] sampler: resolve bare attr_fields against item_id_field's sequence prefix

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[feat] features: project_grouped_sequence_feature_to_scalar helper for export view

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[feat] HSTUMatchItemTower: scalar export view via set_is_inference(True)

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[feat] HSTUMatch item-tower scalar export view + item_input_path routing

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[ci] add kuairand-1k-match-item-c1.parquet wget for HSTUMatch item-tower scalar export test

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[refactor] sampler: unify sequence state via feature configs, drop _seq_field_delims

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[refactor] HSTUMatchItemTower view via lazy properties; materialize seq defaults; hoist set_is_inference

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[refactor] expose features/feature_groups as properties end-to-end; drop hasattr fallback in ScriptWrapper

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[doc] explain why the prefix-resolve if-else is load-bearing

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[refactor] gate prefix-resolve on candidate-side sequence_input_names (feature-config only)

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[refactor] move item_input_path out of proto; expose as generic --data_input_path CLI flag

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[bugfix] MatchTower: expose features/feature_groups properties (CI fix)

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Commits on May 21, 2026