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Approximating the longest increasing subsequence in a stream

Find how much space a randomized streaming algorithm needs to approximate the longest increasing subsequence within a constant factor.

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1{
2 "domain": "computer-science",
3 "topics": [
4 "algorithms-complexity"
5 ],
6 "type": "proof",
7 "also": [
8 "algorithm"
9 ],
10 "source": {
11 "key": "sublinear",
12 "name": "Sublinear.info",
13 "url": "https://sublinear.info/44",
14 "id": "44",
15 "curator": "Sublinear.info editors",
16 "poser": "Amit Chakrabarti",
17 "status": "open",
18 "as_of": "2026-10-20",
19 "catalog": "0521c19bbd38"
20 },
21 "review": true,
22 "approval": "first-time"
23}