A bucket queue is a data structure that implements the priority queue abstract data type: it maintains a dynamic collection of elements with numerical priorities and allows quick access to the element with minimum (or maximum) priority. In the bucket queue, the priorities must be integers, and it is particularly suited to applications in which the priorities have a small range. A bucket queue has the form of an array of buckets: an array data structure, indexed by the priorities, whose cells contain collections of items with the same priority as each other. With this data structure, insertion of elements and changes of their priority take constant time. Searching for and removing the minimum-priority element takes time proportional to the number of buckets or, by maintaining a pointer to the most recently found bucket, in time proportional to the difference in priorities between successive operations. The bucket queue is the priority-queue analogue of pigeonhole sort (also called bucket sort), a sorting algorithm that places elements into buckets indexed by their priorities and then concatenates the buckets. Using a bucket queue as the priority queue in a selection sort gives a form of the pigeonhole sort algorithm. Bucket queues are also called bucket priority queues or bounded-height priority queues. When used for quantized approximations to real number priorities, they are also called untidy priority queues or pseudo priority queues. They are closely related to the calendar queue, a structure that uses a similar array of buckets for exact prioritization by real numbers. Applications of the bucket queue include computation of the degeneracy of a graph, fast algorithms for shortest paths and widest paths for graphs with weights that are small integers or are already sorted, and greedy approximation algorithms for the set cover problem. The quantized version of the structure has also been applied to scheduling and to marching cubes in computer graphics. The first use of the bucket queue was in a shortest path algorithm by . (Wikipedia).
Related videos: Queue intro: https://youtu.be/KxzhEQ-zpDc Queue implementation: https://youtu.be/EoisnPvUkOA Queue code: https://youtu.be/HV-hpvuGaC4 Data Structures Source Code: https://github.com/williamfiset/algorithms My website: http://www.williamfiset.com
From playlist Queue data structure playlist
From playlist CS50 Shorts
Queuing lesson 1 - Types of queues, definitions
Hi all. In this lesson on queueing we introduce you to FIFO, LIFO, Single queue single server, single queue multiple server, multiple queue single server, multiple queue multiple server, baulking, reneging, and jockeying. A lot of definitions in one video - hope it helps!
From playlist Maths A / General Course, Grade 11/12, High School, Queensland, Australia
From playlist Week 6 2015 Shorts
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From playlist Queue data structure playlist
Priority Queue Inserting Elements
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From playlist Data structures playlist
Queue - concept and java implementation
in this tutorial, I cover the basic concepts of queue and explain java implementation of queue.
From playlist Java Coding Interview
Priority Queue Min Heaps and Max Heaps
Related Videos: Priority queue intro: https://www.youtube.com/watch?v=wptevk0bshY Priority queue min/max heaps: https://www.youtube.com/watch?v=HCEr35qpawQ Priority queue insertion: https://www.youtube.com/watch?v=QOJ-CmQiXko Priority queue removals: https://www.youtube.com/watch?v=eVq8Cmo
From playlist Data structures playlist
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Application Services in AWS | Top Application services in AWS | AWS Training | Edureka | AWS Live -4
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From playlist Edureka Live Classes 2020
Data Structures and Algorithms in JavaScript - Full Course for Beginners
Learn common data structures and algorithms in this tutorial course. You will learn the theory behind them, as well as how to program them in JavaScript. ⭐️ Contents (link to code after title) ⭐️ ⌨️ Stacks (00:21) https://codepen.io/beaucarnes/pen/yMBGbR?editors=0012 ⌨️ Sets (09:03) https
From playlist Data Structures and Algorithms - Beau teaches JavaScript
Another way to analyse queueing systems -- Network Calculus
This is my submission for the Summer of Math Exposition 1 (Some1) organized by the YouTuber 3 Blue 1 Brown. In this introductory video I describe the very basics of network calculus. It is a theory that models queueing systems and is based on min-plus algebra instead of Markov Chains (w
From playlist Summer of Math Exposition Youtube Videos
Sorting Algorithms Full Course | Sorting Algorithms In Data Structures Explained | Simplilearn
This Simplilearn video is based on The Sorting Algorithms Full Course. This tutorial mainly focuses on all the major Sorting Algorithms In Data Structures Explained with detailed theory and practical examples for providing a better learning experience. This video covers the following Sort
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From playlist Edureka Live Classes 2020
Amazon Web Services Training - Zero to Hero
Full course / tutorial about AWS. Learn how to do common tasks: -Create an AWS EC2 WordPress Web server; -Launch and connect to an AWS RDS relational database server; -Create a highly available and fault tolerant back-end for NodeJS applications with AWS Elastic Beanstalk; -Store and retr
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Data Structures Easy to Advanced Course - Full Tutorial from a Google Engineer
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CS50 2019 - Lecture 5 - Data Structures
TABLE OF CONTENTS 00:00:00 - Introduction 00:01:22 - Week 4 Recap 00:06:10 - Pointer Fun with Binky 00:08:44 - Arrays 00:14:19 - list.c 00:28:25 - Data Structures 00:30:23 - Linked Lists 00:38:57 - Linked List Representation 00:51:05 - Linked List Demo 01:01:02 - list.c, continued 01:08:2
From playlist CS50 Lectures 2019
Queue Data Structure – Algorithms
This is an explanation of the dynamic data structure known as a queue. It compares a linear queue implemented by means of a dynamic array with a linear queue implemented with a static array. It also includes an explanation of how a circular queue works, along with pseudocode for the enqu
From playlist Data Structures