Tree inclusion problems

Cégielski, Patrick; Guessarian, Irène; Matiyasevich, Yuri

doi:10.1051/ita:2007052

Cégielski, Patrick ; Guessarian, Irène ; Matiyasevich, Yuri

RAIRO - Theoretical Informatics and Applications - Informatique Théorique et Applications, Tome 42 (2008) no. 1, pp. 5-20.

Résumé

Given two trees (a target $T$ and a pattern $P$ ) and a natural number $w$ , window embedded subtree problems consist in deciding whether $P$ occurs as an embedded subtree of $T$ and/or finding the number of size (at most) $w$ windows of $T$ which contain pattern $P$ as an embedded subtree. $P$ is an embedded subtree of $T$ if $P$ can be obtained by deleting some nodes from $T$ (if a node $v$ is deleted, all edges adjacent to $v$ are also deleted, and outgoing edges are replaced by edges going from the parent of $v$ (if it exists) to the children of $v$ ). Deciding whether $P$ is an embedded subtree of $T$ is known to be NP-complete. Our algorithms run in time $O (| T | 2^{2^{| P |}})$ where $| T |$ (resp. $| P |$ ) is the size of $T$ (resp. $P$ ).

MR Zbl

DOI : 10.1051/ita:2007052

Classification : 68Q25, 68W05
Mots-clés : subtree inclusion, algorithm

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     author = {C\'egielski, Patrick and Guessarian, Ir\`ene and Matiyasevich, Yuri},
     title = {Tree inclusion problems},
     journal = {RAIRO - Theoretical Informatics and Applications - Informatique Th\'eorique et Applications},
     pages = {5--20},
     publisher = {EDP-Sciences},
     volume = {42},
     number = {1},
     year = {2008},
     doi = {10.1051/ita:2007052},
     mrnumber = {2382541},
     zbl = {1149.68040},
     language = {en},
     url = {http://www.numdam.org/articles/10.1051/ita:2007052/}
}

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Cégielski, Patrick; Guessarian, Irène; Matiyasevich, Yuri. Tree inclusion problems. RAIRO - Theoretical Informatics and Applications - Informatique Théorique et Applications, Tome 42 (2008) no. 1, pp. 5-20. doi : 10.1051/ita:2007052. http://www.numdam.org/articles/10.1051/ita:2007052/

Bibliographie
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