Everything About ___
Live briefing

Everything about Count-distinct problem

Problem in computer science

In computer science, the count-distinct problem (also known in applied mathematics as the cardinality estimation problem) is the problem of finding the number of distinct elements in a data stream with repeated elements. This is a well-known problem with numerous applications. The elements might represent IP addresses of packets passing through a router, unique visitors to a web site, elements in a large database, motifs in a DNA sequence, or elements of RFID/sensor networks. Wikipedia →

đź§­ Start here: a 6-step reading path

  1. Read the overview: Count-distinct problemA 5-minute orientation
  2. Pick up a classic book: American FilmThe most-reprinted book on the subject
  3. Go sideways: HyperLogLogA closely related topic
  4. Go sideways: Count–min sketchA closely related topic

đź“– Definitions

No dictionary entry for this exact phrase.

🏆 Landmark papers (most cited)

📚 Books worth reading

Ranked by number of editions on Open Library, a rough measure of how lasting a book is.

đź”— Related topics