Home > Term: reservoir sampling
reservoir sampling
Randomly select k items from a stream of items of unknown length. Save the first k items in an array of size k. For each item j, j > k, choose a random integer M from 1 to j (inclusive). If M ≤ k, replace item M of the array with item j.
- ส่วนหนึ่งของคำพูด: noun
- อุตสาหกรรม/ขอบเขต: Computer science
- Category: Algorithms & data structures
- Government Agency: NIST
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- GeorgeV
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