Frequency

Many important problems with streaming applications that operate large data streams are related to the estimation of the frequencies of elements, including determining the most frequent element or detecting the trending ones over some period of time.

• Count Sketch
  • References
  • Build a sketch
  • Index element into the sketch
  • Estmiate frequency of the element
  • Size of the sketch in bytes
  • Length of the sketch
• Count-Min Sketch
  • References
  • Build a sketch
  • Index element into the sketch
  • Estmiate frequency of the element
  • Size of the sketch in bytes
  • Length of the sketch