https://github.com/mtchavez/countmin

CountMin sketching algorithm in golang
https://github.com/mtchavez/countmin

count-min-sketch go golang sketching-algorithm

Last synced: about 2 months ago
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CountMin sketching algorithm in golang

• Host: GitHub
• URL: https://github.com/mtchavez/countmin
• Owner: mtchavez
• License: mit
• Created: 2014-06-20T03:42:27.000Z (almost 11 years ago)
• Default Branch: master
• Last Pushed: 2018-07-26T13:48:19.000Z (almost 7 years ago)
• Last Synced: 2025-02-04T15:32:40.495Z (4 months ago)
• Topics: count-min-sketch, go, golang, sketching-algorithm
• Language: Go
• Homepage:
• Size: 21.5 KB
• Stars: 3
• Watchers: 2
• Forks: 1
• Open Issues: 0
• Metadata Files:
  • Readme: README.md
  • Changelog: CHANGELOG.md
  • License: LICENSE

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README

        
# CountMin

[![Latest Version](http://img.shields.io/github/release/mtchavez/countmin.svg?style=flat-square)](https://github.com/mtchavez/countmin/releases)

[![Build Status](https://travis-ci.org/mtchavez/countmin.svg?branch=master)](https://travis-ci.org/mtchavez/countmin)

[![Go Documentation](http://img.shields.io/badge/go-documentation-blue.svg?style=flat-square)](http://godoc.org/github.com/mtchavez/countmin)

[![Go Report Card](https://goreportcard.com/badge/github.com/mtchavez/countmin)](https://goreportcard.com/report/github.com/mtchavez/countmin)

[![Maintainability](https://api.codeclimate.com/v1/badges/9915ffa2990295885e85/maintainability)](https://codeclimate.com/github/mtchavez/countmin/maintainability)

[![Test Coverage](https://api.codeclimate.com/v1/badges/9915ffa2990295885e85/test_coverage)](https://codeclimate.com/github/mtchavez/countmin/test_coverage)

CountMin sketching algorithm.

## Install

Install package

`go get -u github.com/mtchavez/countmin`

## Usage

```go

package main

import (

	"fmt"

	"github.com/mtchavez/countmin"

)

func main() {

	cm := countmin.New(10, 100000000)

	for _, i := range []int64{1, 2, 3, 4, 5, 6, 7, 8, 9, 1, 2, 3, 4, 5, 6, 7, 8, 9, 1} {

		cm.Add([]byte(fmt.Sprintf("%d", i)), int64(i))

	}

	fmt.Printf("Estimate of %d is %d\n", 1, cm.Count([]byte("1")))

	fmt.Printf("Estimate of %d is %d\n", 3, cm.Count([]byte("3")))

	fmt.Printf("Estimate of %d is %d\n", 9, cm.Count([]byte("9")))

	fmt.Println("Size: ", cm.Size())

	fmt.Println("Err: ", cm.RelativeError())

	fmt.Println("Confidence: ", cm.Confidence())

}

```

## Tests

Run using `go test ./... --cover`

Run benchmarks `go test --bench=.*`

## TODO

* Serialize/Deserialize

* TCP / HTTP server wrappers