Deciding Equivalence of Linear Tree-to-Word Transducers in Polynomial Time

被引:4
|
作者
Boiret, Adrien [1 ]
Palenta, Raphaela [2 ]
机构
[1] Univ Lille 1, CRIStAL, Ave Carl Gauss, F-59655 Villeneuve Dascq, France
[2] Tech Univ Munich, Dept Informat, Boltzmannstr 3, D-85748 Garching, Germany
来源
关键词
Tree transducer; Deciding equivalence; Partial normal form;
D O I
10.1007/978-3-662-53132-7_29
中图分类号
TP31 [计算机软件];
学科分类号
081202 ; 0835 ;
摘要
We show that the equivalence of linear top-down tree-to-word transducers is decidable in polynomial time. Linear tree-to-word transducers are non-copying but not necessarily order-preserving and can be used to express XML and other document transformations. The result is based on a partial normal form that provides a basic characterization of the languages produced by linear tree-to-word transducers.
引用
收藏
页码:355 / 367
页数:13
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