Factbites
 Where results make sense
About us   |   Why use us?   |   Reviews   |   PR   |   Contact us  

Topic: Pigeonhole sort


Related Topics

  
  Pigeonhole sort
Pigeonhole sorting takes linear time (O(n)), which is the best possible performance for a sort algorithm since one must inevitably look at each of the elements being sorted at least once, regardless of the sorting algorithm.
However, pigeonhole sorting is only practical if the objects you are sorting fall within (or can be mapped into) a range of possible values that is small compared to the size of the list to be sorted.
Pigeonhole sort is rarely used as the requirements are rarely met and other, more flexible, and almost as fast, sorting algorithms are easier to use.
www.brainyencyclopedia.com /encyclopedia/p/pi/pigeonhole_sort.html   (414 words)

  
  Pigeonhole sort - Wikipedia, the free encyclopedia
Pigeonhole sorting takes linear time (O(n)), which is the best possible performance for a sort algorithm since one must inevitably look at each of the elements being sorted at least once, regardless of the sorting algorithm.
However, pigeonhole sorting is only practical if the objects you are sorting fall within (or can be mapped into) a range of possible values that is small compared to the size of the list to be sorted.
Pigeonhole sort is rarely used as the requirements are rarely met and other, more flexible, and almost as fast, sorting algorithms are easier to use.
en.wikipedia.org /wiki/Pigeonhole_sort   (349 words)

  
 pigeonhole sort   (Site not responding. Last check: 2007-11-03)
Definition: A 2-pass sort algorithm that is efficient when the range of keys is approximately equal to the number of items.
Pigeonhole sort moves items twice: once to the bucket array and again to the final destination.
Since rapid sort only sorts keys, "moving an item in its key's bucket" is just incrementing a count and "moving each item to the destination" is writing the proper number of keys.
www.nist.gov /dads/HTML/pigeonholeSort.html   (198 words)

  
 SORT - Definition
Sort signifies that which constitutes a particular lot of parcel, not implying necessarily the idea of affinity, but of mere assemblage.
the two words are now used to a great extent interchangeably, though sort (perhaps from its original meaning of lot) sometimes carries with it a slight tone of disparagement or contempt, as when we say, that sort of people, that sort of language.
Sorting is the subject of a great deal of study since it is a common operation which can consume a lot of computer time.
www.hyperdictionary.com /dictionary/sort   (826 words)

  
 Sorting algorithm - Encyclopedia, History, Geography and Biography   (Site not responding. Last check: 2007-11-03)
Efficient sorting is important to optimizing the use of other algorithms (such as search and merge algorithms) that require sorted lists to work correctly; it is also often useful for canonicalizing data and for producing human-readable output.
Bubble sort is the most straightforward and simplistic method of sorting data that could actually be considered for real world use.
For sorting really enormous amounts of data that completely dwarf system memory, even the index may need to be sorted using an algorithm or combination of algorithms designed to perform reasonably with virtual memory, i.e., to reduce the amount of swapping required.
www.arikah.net /encyclopedia/Sort_algorithm   (1975 words)

  
 Definition of Pigeonhole sort
an invertible function mapping the objects you are sorting to integers within a small range (say, 0 to 1000).
The range must be limited to some constant times the number of elements that is being sorted to achieve the linear running time.
Pigeonhole sort orders the elements by the result of this mapping.
www.wordiq.com /definition/Pigeonhole_sort   (369 words)

  
 Encyclopedia: Pigeonhole sort   (Site not responding. Last check: 2007-11-03)
In computer science and mathematics, a sorting algorithm is an algorithm that puts elements of a list in a certain order.
Sorting refers to a process of arranging items in some sequence and/or in different sets, and accordingly, it has two common, yet distinct meanings: ordering: aranging items of the same kind, class, nature, etc....
If you think about it, quicksort is also a generalized kind of pigeonhole sort (with just two pigeonholes at any time).
www.nationmaster.com /encyclopedia/Pigeonhole-sort   (575 words)

  
 Sort algorithm - Wikipedia
Efficient sorting is important to optimizing the use of other algorithms (such as search algorithms and merge algorithms) that require sorted lists to work correctly; it is also often useful for canonicalizing data and for producing human-readable output.
Sort algorithms which only use an abstract key comparison operation always need at least O(n log n) comparisons on average; sort algorithms which exploit the structure of the key space cannot sort faster than O(kn) where k is the average key length.
stability: a sort algorithm is stable if, whenever there are two records R and S with the same key and with R appearing before S in the original list, R will appear before S in the sorted list.
nostalgia.wikipedia.org /wiki/Sort_algorithm   (274 words)

  
 List of all algorithms, classified by purpose
Sort of a binary tree, incremental, similar to insertion sort.
Similar to insertion sort except that moving an element to its proper place is accomplished by a series of swaps, as in bubble sort.
A merge sort that sorts a data stream using repeated merges.
www.scriptol.org /list-of-algorithms.html   (2730 words)

  
 counting sort   (Site not responding. Last check: 2007-11-03)
Definition: A 2-pass sort algorithm that is efficient when the range of keys is small and there many duplicate keys.
A pigeonhole sort is a counting sort that moves items to the auxiliary array instead of counting them.
Bruno R. Preiss' sort integers 0 to m-1 (C).
www.nist.gov /dads/HTML/countingsort.html   (190 words)

  
 Bucket sort - Wikipedia, the free encyclopedia
Bucket sort runs in linear time (Θ(n)) when input is drawn from a uniform distribution.
Not being a comparison sort, it is not subject to the Ω(n log n) lower bound.
Using BUCKET-SORT itself as the NEXT-SORT produces a relative of the radix sort.
en.wikipedia.org /wiki/Bucket_sort   (228 words)

  
 Bucket sort
Bucket sort is a sort algorithm that works by partitioning an array into a finite number of buckets and then sorting each bucket.
Bucket sort runs in linear time when input is drawn from a uniform distribution.
' This could be k*n for sorting numbers, or ' the first character of n for sorting strings.
www.ebroadcast.com.au /lookup/encyclopedia/bu/Bucket_sort.html   (198 words)

  
 separate. Roget’s II: The New Thesaurus, Third Edition. 1995.
To distribute into groups according to kinds: assort, categorize, class, classify, group, pigeonhole, sort (out).
To release from military duty: demobilize, discharge, muster out.
To set apart (one kind or type) from others: sift, sort, winnow.
www.bartleby.com /62/60/S1356000.html   (207 words)

  
 pigeonhole - Search Results - MSN Encarta
- place to put messages: a small compartment that is part of a set in a desk or wall unit into which papers or messages can be sorted or placed
The pigeonhole principle, also known as Dirichlet's box principle, states that if n pigeons are put into m pigeonholes, and if n m, then at least one pigeonhole must contain more than one pigeon...
Pigeonhole sorting, also known as count sort, is a sorting algorithm that takes linear time (), which is the best possible performance for a sorting algorithm since one must inevitably look at each...
encarta.msn.com /encnet/refpages/search.aspx?q=pigeonhole   (203 words)

  
 Clase del pigeonhole   (Site not responding. Last check: 2007-11-03)
Pigeonhole que clasifica el tiempo linear de las tomas (O(n)), que es el mejor funcionamiento posible para un algoritmo de la clase puesto que uno debe observar inevitable cada uno de los elementos que son clasificados por lo menos una vez, sin importar el algoritmo que clasifica.
Pigeonhole las órdenes de la clase los elementos por el resultado de este traz.
La clase del pigeonhole se utiliza raramente como los requisitos se resuelven raramente y otro, más flexible, y casi como rápidamente, los algoritmos que clasifican son más fáciles de utilizar.
www.yotor.net /wiki/es/cl/Clase%20del%20pigeonhole.htm   (333 words)

  
 Insertion Sort
Sorting algorithms were measured by a standard called big O. Big O measures algorithms by taking the worst-case that the algorithm could have and timing it.
This means that the only time insertion sort is fast is when the array or list is sorted and that defeats the purpose of the sorting algorithm.
Although both of these sorts are faster than insertion sort, insertion sort is the basis of these sorts and is therefore a good foundation to start teaching sorting.
www2.hawaii.edu /~lestery/insertsort.htm   (1149 words)

  
 Pigeonhole sort: Definition and Links by Encyclopedian.com - All about Pigeonhole sort
Pigeonhole sort: Definition and Links by Encyclopedian.com - All about Pigeonhole sort
Pigeonhole sorting takes linear time, which is the best possible performance for a sort algorithm since one has to look at all of the objects to be sorted.
Pigeonhole sort is rarely used as the requirements are rarely met and other, more flexible, sorting algorithms are easier to use.
www.encyclopedian.com /pi/Pigeonhole-sort.html   (222 words)

  
 Untitled Document   (Site not responding. Last check: 2007-11-03)
Pigeonholes are used primarily with Peter Dowson's EPIC VXD software.
Pigeonholes that contain values such as Engine N1, N2 values, or Mag Heading values, change quite frequently, while others such as the autopilot IAS hold remains static and changes only when the pilot selects it.
Extracting the Pigeonhole valule and sending that value to an EPIC Display module is a different story.
www.avsim.com /bluesideup/_pigeonholes/_pigeonholes.htm   (395 words)

  
 Sort algorithm - InfoSearchPoint.com   (Site not responding. Last check: 2007-11-03)
In computer science and mathematics, a sort algorithm is an algorithm that puts elements of a list into order by means of a certain ordering, often lexicographical.
Sort algorithms which only use an abstract key comparison operation always need at least O(n log n) comparisons on average; sort algorithms which exploit the structure of the key space cannot sort faster than O(n log k) where k is the size of the keyspace.
That is, a sort algorithm is stable if whenever there are two records R and S with the same key and with R appearing before S in the original list, R will appear before S in the sorted list.
www.infosearchpoint.com /display/Sort_algorithm   (520 words)

  
 Psychology of Consumer Behavior
Thus when you see a fl person, or meet a stranger and someone tells you he or she is Jewish, the stereotype label triggers the pigeonhole and all that information is what you think of about that person.
Family and friends produce many other pigeonholes of this type, particularly when you are young: best car to drive, political and religious affiliations, hair length and clothing styles, views about schooling, government, blonds, brunettes and redheads, gender, beer, smoking, bill paying, everything.
Since these characteristics are there, the pigeonhole thus triggered will provide the rest of the information that he has a loud voice and a lisp.
www.wsu.edu:8080 /~taflinge/psych2.html   (4147 words)

  
 Pigeonhole sort - Wikipedia
an invertible function mapping the objects you are sorting to integers within a fixed range (say, 0 to 1000).
The hidden constant for this algorithm depends critically on the size of the pigeonhole array.
If it is too big, steps 1 and 3 will significantly slow down the algorithm.
nostalgia.wikipedia.org /wiki/Pigeonhole_sort   (193 words)

  
 Heapsort Algorithms   (Site not responding. Last check: 2007-11-03)
Sorting, in general, is very important due to “need for sorting arises in many situations” (Data Abstraction and Problem Solving in Java; page 384).
It is known fact that mergesort and radix sort algorithms are the two of the best in terms of Big-O analysis, according to the textbook of Data Abstraction and Problem Solving with Java, but selecting the best suited sorting algorithm for a particular data size and specific input order is crucial for optimal results.
Number of comparisons that it makes during run time is very small when compared to some of the other sorting algorithms, such as that of the insertion or quicksort.
www2.hawaii.edu /~mhackler/heapsort.htm   (934 words)

Try your search on: Qwika (all wikis)

Factbites
  About us   |   Why use us?   |   Reviews   |   Press   |   Contact us  
Copyright © 2005-2007 www.factbites.com Usage implies agreement with terms.