Discover · emergent taxonomy (B7)

Category discovery

Bottom-up faceted taxonomy — not a hand-authored tree · a budget-bounded guided bandit exploits high-yield categories, explores unsearched ones, retires dead ends

$20 / sweep

$40 / sweep

$80 / sweep

$150 / sweep

Active categories138emergent · self-populating

Avg dispersion (CoV)0.42the arbitrage signal

Mean yield26%annualized return

Searches this sweep320budget-bounded bandit

Discovery frontier

exploit · explore · retire — chosen per sweep by expected yield × dispersion

🔥 Exploit

Vinyl · jazz0.58

Vintage synths0.61

Fountain pens0.51

🧭 Explore

Mechanical keyboards?

Film cameras?

Tube amps?

🗑 Retire

Phone cases0.04

Generic cables0.02

Categories

138 active

Category	Facets	Status	Listings	Opps	Dispersion	Yield	Last swept
Vinyl records · jazzparent: Vinyl records · from seed	music collectible analog	Active	6,140	37	0.58	34%	2h ago
Vintage synthesizersparent: Pro audio · from results:audio	audio vintage luxury	Active	1,880	21	0.61	42%	2h ago
Fountain pensparent: Writing · from ebay-taxonomy	collectible luxury	Active	3,210	18	0.51	31%	5h ago
Luxury watchesparent: Jewelry · from seed	jewelry luxury collectible	Active	4,760	12	0.47	27%	1d ago
Mechanical keyboardsparent: Peripherals · from ebay-taxonomy	electronics hobbyist	Candidate	—	—	?	?	never
Film camerasparent: Cameras · from results:audio	cameras vintage	Searched	2,410	9	0.44	24%	6h ago
Tube ampsparent: Pro audio · from results:audio	audio hobbyist	Candidate	—	—	?	?	never
Board gamesparent: Toys & games · from ebay-taxonomy	games collectible	Searched	5,020	6	0.33	19%	12h ago
Generic cablesparent: Electronics · from results:audio	electronics commodity	Retired	18,900	0	0.02	2%	3d ago
Phone casesparent: Accessories · from ebay-taxonomy	accessories commodity	Retired	42,300	0	0.04	3%	3d ago

🔁

Self-populating. Category sweep → connectors search → results tag new categories → next sweep picks up the emergent tags. Consolidation (B7 S3) merges / links duplicate tags via Claude. Dispersion = coefficient of variation (higher = more mispricing = more arbitrage); yield = mean annualized return.