bvandeusen
f0c08e7326
Milestone #160 Opt 2b (mood half of the era+mood option). A fourth taste facet alongside artists + genre tags + eras: signed weights over canonical mood buckets (melancholic / energetic / chill / …) derived from a track's enriched folksonomy tags (#1490). - internal/mood: shared vocabulary — Of(tags) maps folksonomy tags to canonical mood buckets (synonyms collapse). Imported by both the taste builder and the scorer so a track's mood is derived identically. - Migration 0047: taste_profile_moods table + taste_tuning.mood_scale (DEFAULT 0.5). - Build side (internal/taste): Config.MoodScale ([0,1] damper, mirrors EraScale); accumulate folds each play/like's mood buckets at base*MoodScale; persist atomic-replaces the mood rows. - Scorer (internal/recommendation): TasteProfile gains a mood term (own tanh scale + additive 0.12 share, so it never weakens the existing signal when a track has no mood tags). Match now takes the candidate's mood buckets; loaded per candidate (ListTrackTagsForTracks → mood.Of) in the primary similarity loader only — the near-whole-library fallback pool passes nil (mood → 0) to avoid a full-library tag scan. - Tuning lab: mood_scale threaded through recsettings + admin API + web card ("Mood weight" row) + Go/web tests. Coverage is partial (grows with tag enrichment; richer once Last.fm is keyed), so mood is a supplement — neutral for tracks with no mood tags. Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
68 lines
2.3 KiB
SQL
68 lines
2.3 KiB
SQL
-- Recommendation tuning lab queries (#1250). Seeding happens via the
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-- recsettings boot reconcile; shipped defaults live in Go only.
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-- name: UpsertWeightProfileDefaults :exec
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-- Boot reconcile: insert the shipped defaults for a profile if the row
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-- doesn't exist yet. Never overwrites operator-tuned values.
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INSERT INTO recommendation_weight_profiles (
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profile, base_weight, like_boost, recency_weight, skip_penalty,
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jitter_magnitude, context_weight, similarity_weight, taste_weight,
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context_time_weight
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) VALUES ($1, $2, $3, $4, $5, $6, $7, $8, $9, $10)
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ON CONFLICT (profile) DO NOTHING;
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-- name: ListWeightProfiles :many
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SELECT * FROM recommendation_weight_profiles ORDER BY profile;
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-- name: UpdateWeightProfile :one
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UPDATE recommendation_weight_profiles
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SET base_weight = $2,
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like_boost = $3,
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recency_weight = $4,
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skip_penalty = $5,
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jitter_magnitude = $6,
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context_weight = $7,
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similarity_weight = $8,
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taste_weight = $9,
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context_time_weight = $10,
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updated_at = now()
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WHERE profile = $1
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RETURNING *;
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-- name: UpsertTasteTuningDefaults :exec
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INSERT INTO taste_tuning (
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singleton, half_life_days, engagement_hard_skip,
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engagement_neutral, engagement_full, enriched_tag_scale, era_scale,
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mood_scale
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) VALUES (true, $1, $2, $3, $4, $5, $6, $7)
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ON CONFLICT (singleton) DO NOTHING;
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-- name: GetTasteTuning :one
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SELECT * FROM taste_tuning WHERE singleton = true;
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-- name: UpdateTasteTuning :one
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UPDATE taste_tuning
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SET half_life_days = $1,
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engagement_hard_skip = $2,
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engagement_neutral = $3,
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engagement_full = $4,
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enriched_tag_scale = $5,
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era_scale = $6,
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mood_scale = $7,
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updated_at = now()
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WHERE singleton = true
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RETURNING *;
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-- name: InsertTuningAudit :exec
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-- changes is a jsonb array of {field, old, new} objects.
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INSERT INTO recommendation_tuning_audit (scope, action, changes)
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VALUES ($1, $2, $3);
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-- name: ListTuningAudit :many
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-- Newest first; consumed by the metrics trend view (#1251) to annotate
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-- knob turns on the timeline.
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SELECT id, changed_at, scope, action, changes
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FROM recommendation_tuning_audit
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ORDER BY changed_at DESC, id DESC
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LIMIT $1;
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