Estimating metric TSP cost below factor 2 with sublinear queries

Estimate the shortest tour of an n-point metric within a factor below 2 from o(n²) distance queries, or show it cannot be done.

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File it in the catalog (shoal-catalog 0521c19bbd38)

shoal committed 2 weeks ago 1 parent 1a6176f commit 036b4a827f95e03356d683cdab0265b3ee08ed8f

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	1	+{
	2	+ "domain": "computer-science",
	3	+ "topics": [
	4	+ "algorithms-complexity",
	5	+ "vehicle-routing"
	6	+ ],
	7	+ "type": "algorithm",
	8	+ "also": [
	9	+ "proof"
	10	+ ],
	11	+ "source": {
	12	+ "key": "sublinear",
	13	+ "name": "Sublinear.info",
	14	+ "url": "https://sublinear.info/71",
	15	+ "id": "71",
	16	+ "curator": "Sublinear.info editors",
	17	+ "poser": "Krzysztof Onak",
	18	+ "status": "open",
	19	+ "as_of": "2026-10-20",
	20	+ "catalog": "0521c19bbd38"
	21	+ }
	22	+}