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» When Are Timed Automata Determinizable
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113
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CC
1999
Springer
154views System Software» more  CC 1999»
15 years 7 months ago
Faster Generalized LR Parsing
Tomita devised a method of generalized LR GLR parsing to parse ambiguous grammars e ciently. A GLR parser uses linear-time LR parsing techniques as long as possible, falling back...
John Aycock, R. Nigel Horspool
125
Voted
SIGMOD
2003
ACM
140views Database» more  SIGMOD 2003»
16 years 3 months ago
Stream Processing of XPath Queries with Predicates
We consider the problem of evaluating large numbers of XPath filters, each with many predicates, on a stream of XML documents. The solution we propose is to lazily construct a sin...
Ashish Kumar Gupta, Dan Suciu
122
Voted
IDEAS
2007
IEEE
148views Database» more  IDEAS 2007»
15 years 10 months ago
Boundedness of Regular Path Queries in Data Integration Systems
In this paper we study the problem of deciding whether a regular path query over views in data-integration systems can be re-expressed without recursion. The problem becomes chall...
Gösta Grahne, Alex Thomo
176
Voted
SOCO
2010
Springer
15 years 1 months ago
Automatic detection of trends in time-stamped sequences: an evolutionary approach
This paper presents an evolutionary algorithm for modeling the arrival dates in time-stamped data sequences such as newscasts, e-mails, IRC conversations, scientific journal artic...
Lourdes Araujo, Juan Julián Merelo Guerv&oa...
CORR
2007
Springer
104views Education» more  CORR 2007»
15 years 3 months ago
Observable Graphs
An edge-colored directed graph is observable if an agent that moves along its edges is able to determine his position in the graph after a sufficiently long observation of the edge...
Raphael M. Jungers, Vincent D. Blondel