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Author, Editor(s)

Author(s):

Elmasry, Amr
Jensen, Claus
Katajainen, Jyrki

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Not MPG Author(s):

Jensen, Claus
Katajainen, Jyrki

BibTeX cite key*:

Elmasry2008b

Title

Title*:

Multipartite Priority Queues


ACM-final.pdf (176.11 KB)

Journal

Journal Title*:

ACM Transactions on Algorithms

Journal's URL:

http://talg.acm.org/

Download URL
for the article:

http://delivery.acm.org/10.1145/1440000/1435389/a14-elmasry.pdf?key1=1435389&key2=3608984321&coll=portal&dl=ACM&CFID=22957209&CFTOKEN=87484811

Language:

English

Publisher

Publisher's
Name:

Association for Computing Machinery (ACM)

Publisher's URL:

http://www.acm.org/

Publisher's
Address:

New York, USA

ISSN:

1549-6325

Vol, No, pp, Date

Volume*:

5

Number:

1

Publishing Date:

November 2008

Pages*:

1-19

Number of
VG Pages:

19

Page Start:

1

Page End:

19

Sequence Number:

14

DOI:

10.1145/1435375.1435389

Note, Abstract, ©

Note:


(LaTeX) Abstract:

We introduce a framework for reducing the number of element
comparisons performed in priority-queue operations. In particular, we
give a priority queue which guarantees the worst-case cost of $O(1)$
per minimum finding and insertion, and the worst-case cost of $O(\log
n)$ with at most $\log n + O(1)$ element comparisons per minimum
deletion and deletion, improving the bound of $2\log n + O(1)$ known for
binomial queues. Here, $n$ denotes the number of elements stored in the
data structure prior to the operation in question, and $\log n$ equals
$\log_2(\max\set{2, n})$. As an immediate application of the priority queue
developed, we obtain a sorting algorithm that is optimally adaptive with
respect to the inversion measure of disorder, and that sorts a sequence
having $n$ elements and $I$ inversions with at most $n \log (I/n) + O(n)$
element comparisons.

URL for the Abstract:

http://portal.acm.org/citation.cfm?id=1435375.1435389&coll=portal&dl=ACM&idx=J982&part=transaction&WantType=Transactions&title=ACM%20Transactions%20on%20Algorithms%20%28TALG%29&CFID=22957209&CFTOKEN=87484811

Categories,
Keywords:

Priority Queues, Heaps, Meticulous Analysis, Constant Factors

HyperLinks / References / URLs:


Copyright Message:


Personal Comments:


Download
Access Level:

Public

Correlation

MPG Unit:

Max-Planck-Institut für Informatik



MPG Subunit:

Algorithms and Complexity Group

Audience:

experts only

Appearance:

MPII WWW Server, MPII FTP Server, MPG publications list, university publications list, working group publication list, Fachbeirat, VG Wort


BibTeX Entry:

@ARTICLE{Elmasry2008b,
AUTHOR = {Elmasry, Amr and Jensen, Claus and Katajainen, Jyrki},
TITLE = {Multipartite Priority Queues},
JOURNAL = {ACM Transactions on Algorithms},
PUBLISHER = {Association for Computing Machinery (ACM)},
YEAR = {2008},
NUMBER = {1},
VOLUME = {5},
PAGES = {1--19},
ADDRESS = {New York, USA},
MONTH = {November},
ISBN = {1549-6325},
DOI = {10.1145/1435375.1435389},
}


Entry last modified by Amr Elmasry, 03/17/2009
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Editor(s)
Amr Elmassry
Created
02/17/2009 07:15:14 PM
Revision
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Editor
Amr Elmasry
Amr Elmassry


Edit Date
03/17/2009 04:36:35 PM
02/17/2009 07:15:14 PM


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