enow.com Web Search

Search results

  1. Results from the WOW.Com Content Network
  2. Queue (abstract data type) - Wikipedia

    en.wikipedia.org/wiki/Queue_(abstract_data_type)

    Queues provide services in computer science, transport, and operations research where various entities such as data, objects, persons, or events are stored and held to be processed later. In these contexts, the queue performs the function of a buffer. Another usage of queues is in the implementation of breadth-first search.

  3. Priority queue - Wikipedia

    en.wikipedia.org/wiki/Priority_queue

    The priority queue can be further improved by not moving the remaining elements of the result set directly back into the local queues after a k_extract-min operation. This saves moving elements back and forth all the time between the result set and the local queues. By removing several elements at once a considerable speedup can be reached.

  4. Double-ended queue - Wikipedia

    en.wikipedia.org/wiki/Double-ended_queue

    Double-ended queues can also be implemented as a purely functional data structure. [3]: 115 Two versions of the implementation exist. The first one, called 'real-time deque, is presented below. It allows the queue to be persistent with operations in O(1) worst-case time, but requires lazy lists with memoization. The second one, with no lazy ...

  5. Bucket queue - Wikipedia

    en.wikipedia.org/wiki/Bucket_queue

    A bucket queue can handle elements with integer priorities in the range from 0 or 1 up to some known bound C, and operations that insert elements, change the priority of elements, or extract (find and remove) the element that has the minimum (or maximum) priority.

  6. Double-ended priority queue - Wikipedia

    en.wikipedia.org/wiki/Double-ended_priority_queue

    UML class diagram of a double-ended priority queue. A double-ended priority queue features the following operations: isEmpty() Checks if DEPQ is empty and returns true if empty. size() Returns the total number of elements present in the DEPQ. getMin() Returns the element having least priority. getMax() Returns the element having highest ...

  7. Fibonacci heap - Wikipedia

    en.wikipedia.org/wiki/Fibonacci_heap

    In computer science, a Fibonacci heap is a data structure for priority queue operations, consisting of a collection of heap-ordered trees.It has a better amortized running time than many other priority queue data structures including the binary heap and binomial heap.

  8. M/M/c queue - Wikipedia

    en.wikipedia.org/wiki/M/M/c_queue

    In queueing theory, a discipline within the mathematical theory of probability, the M/M/c queue (or Erlang–C model [1]: 495 ) is a multi-server queueing model. [2] In Kendall's notation it describes a system where arrivals form a single queue and are governed by a Poisson process, there are c servers, and job service times are exponentially distributed. [3]

  9. Leftist tree - Wikipedia

    en.wikipedia.org/wiki/Leftist_tree

    The first two items in the queue are removed, merged, and placed back into the queue. This can initialize a HBLT in O(n) time. This approach is detailed in the three diagrams supplied. A min height biased leftist tree is shown. To initialize a min HBLT, place each element to be added to the tree into a queue.