跳到内容
Short encodings of evolving structures 预览资料
关闭预览资料
正在查...

Short encodings of evolving structures

著者: Daniel D Sleator; Robert E Tarjan; William P Thurston
出版商: Pittsburgh, Pa. : School of Computer Science, Carnegie Mellon University, [1991]
丛书: Research paper (Carnegie Mellon University. School of Computer Science), CMU-CS-91-206.
版本/格式:   图书 : 英语查看所有的版本和格式
数据库:WorldCat
提要:
Abstract: "A derivation in a transformational system such as a graph grammar may be redundant in the sense that the exact order of the transformations may not affect the final outcome; all that matters is that each transformation, when applied, is applied to the correct substructure. By taking advantage of this redundancy, we are able to develop an efficient encoding scheme for such derivations. This encoding scheme
评估:

(尚未评估) 0 附有评论 - 争取成为第一个。

主题
更多类似这样的

 

在图书馆查找

&AllPage.SpinnerRetrieving; 正在查找有这资料的图书馆...

详细书目

文件类型:
所有的著者/提供者: Daniel D Sleator; Robert E Tarjan; William P Thurston
OCLC号码: 25683200
注意: "December 1991."
描述: 26 p. : ill. ; 28 cm.
丛书名: Research paper (Carnegie Mellon University. School of Computer Science), CMU-CS-91-206.
责任: Daniel D.K. Sleator, Robert E. Tarjan, William P. Thurston.

摘要:

Abstract: "A derivation in a transformational system such as a graph grammar may be redundant in the sense that the exact order of the transformations may not affect the final outcome; all that matters is that each transformation, when applied, is applied to the correct substructure. By taking advantage of this redundancy, we are able to develop an efficient encoding scheme for such derivations. This encoding scheme has a number of diverse applications. It can be used in efficient enumeration of combinatorial objects or for compact representation of program and data structure transformations. It can also be used to derive lower bounds on lengths of derivations.

We show for example that [omega](n log n) applications of the associative and commutative laws are required in the worst case to transform an n-variable expression over a binary associative, commutative operation into some other equivalent expression. Similarly, we show that [omega](n log n) 'diagonal flips' are required in the worst case to transform one n-vertex numbered triangulated planar graph into some other one. Both of these lower bounds have matching upper bounds. An O(n log n) upper bound for associative, commutative operations was known previously, whereas we obtain here an O(n log n) upper bound for diagonal flips."

评论

用户提供的评论
正在获取GoodReads评论...
正在检索DOGObooks的评论

标签

争取是第一个!

相似资料

相关主题:(1)

确认申请

你可能已经申请过这份资料。如果还是想申请,请选确认。

链接数据


<http://www.worldcat.org/oclc/25683200>
library:oclcnum"25683200"
library:placeOfPublication
library:placeOfPublication
owl:sameAs<info:oclcnum/25683200>
rdf:typeschema:Book
schema:about
schema:about
schema:contributor
schema:contributor
schema:creator
schema:datePublished"1991"
schema:description"We show for example that [omega](n log n) applications of the associative and commutative laws are required in the worst case to transform an n-variable expression over a binary associative, commutative operation into some other equivalent expression. Similarly, we show that [omega](n log n) 'diagonal flips' are required in the worst case to transform one n-vertex numbered triangulated planar graph into some other one. Both of these lower bounds have matching upper bounds. An O(n log n) upper bound for associative, commutative operations was known previously, whereas we obtain here an O(n log n) upper bound for diagonal flips.""@en
schema:description"Abstract: "A derivation in a transformational system such as a graph grammar may be redundant in the sense that the exact order of the transformations may not affect the final outcome; all that matters is that each transformation, when applied, is applied to the correct substructure. By taking advantage of this redundancy, we are able to develop an efficient encoding scheme for such derivations. This encoding scheme has a number of diverse applications. It can be used in efficient enumeration of combinatorial objects or for compact representation of program and data structure transformations. It can also be used to derive lower bounds on lengths of derivations."@en
schema:exampleOfWork<http://worldcat.org/entity/work/id/26003906>
schema:inLanguage"en"
schema:name"Short encodings of evolving structures"@en
schema:numberOfPages"26"
schema:publisher
schema:url

Content-negotiable representations

关闭窗口

请登入WorldCat 

没有张号吗?很容易就可以 建立免费的账号.