XPath evaluation in linear time

Prelegent(ci)

Paweł Parys

Afiliacja

Uniwersytet Warszawski

Termin

29 kwietnia 2009 14:15

Pokój

p. 5870

Seminarium

Seminarium „Teoria automatów”

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We consider a fragment of XPath where attribute values can be tested for equality (FOXPath). We show that for any fixed unary query in this fragment, the set of nodes that satisfy the query can be calculated in time linear in the document size and polynomial in the query size. When we allow arbitrary regular expressions in path expressions, the complexity in the query size is exponential.

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