Ordered and unordered tree inclusion:
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Bibliographische Detailangaben
Beteiligte Personen: Kilpeläinen, Pekka (VerfasserIn), Mannila, Heikki (VerfasserIn)
Format: Buch
Sprache:Englisch
Veröffentlicht: Helsinki 1991
Schriftenreihe:Tietojenkäsittelyopin Laitos <Helsinki>: [Series of publications / A] 1991,4
Schlagwörter:
Abstract:Abstract: "We consider the following problem: Given labeled trees P and T, can P be obtained from T by deleting nodes? Deleting a node v entails removing all edges incident to v, and if v has a parent u, replacing the edge from u to v by edges from u to the children of v. The problem is motivated by the study of query languages for structured text data bases. Simple solutions to this problem require exponential time. For ordered trees we present an algorithm that requires [formula] time and space. We also consider the corresponding problem for unordered trees and give a proof of its NP-completeness."
Umfang:22 Bl.
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Teilbibliothek Mathematik & Informatik, Berichte

Bestandsangaben von Teilbibliothek Mathematik &amp; Informatik, Berichte
Signatur: 0111 2001 B 6050-1991,4
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