1192 search results - page 168 / 239 » Symbolic Query Exploration |
105
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PODS
2005
ACM
16 years 2 months ago
2005
ACM
We study the satisfiability problem associated with XPath in the presence of DTDs. This is the problem of determining, given a query p in an XPath fragment and a DTD D, whether or...
131
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EDBT
2008
ACM
16 years 2 months ago
2008
ACM
Many systems such as Tukwila and YFilter combine automaton and algebra techniques to process queries over tokenized XML streams. Typically in this architecture, an automaton is fi...
108
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ECIR
2009
Springer
15 years 11 months ago
2009
Springer
We explore the utility of different types of topic models for retrieval purposes. Based on prior work, we describe several ways that topic models can be integrated into the retrie...
100
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ECIR
2009
Springer
15 years 11 months ago
2009
Springer
In this paper we address the task of finding topically relevant email messages in public discussion lists. We make two important observations. First, email messages are not isolat...
105
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ALT
2009
Springer
15 years 11 months ago
2009
Springer
Abstract. A variant of iterative learning in the limit (cf. [LZ96]) is studied when a learner gets negative examples refuting conjectures containing data in excess of the target la...