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» Querying XML streams
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RTA
2004
Springer
15 years 12 months ago
Querying Unranked Trees with Stepwise Tree Automata
The problem of selecting nodes in unranked trees is the most basic querying problem for XML. We propose stepwise tree automata for querying unranked trees. Stepwise tree automata c...
Julien Carme, Joachim Niehren, Marc Tommasi
CNSR
2007
IEEE
128views Communications» more  CNSR 2007»
16 years 28 days ago
A Novel Approach for Frequent Phrase Mining in Web Search Engine Query Streams
In this paper, conceptual frequency rate, a new frequency definition suitable for query stream mining, is introduced. An online single-pass algorithm called OFSD (Online Frequent...
M. Barouni-Ebrahimi, Ali A. Ghorbani
CIKM
2007
Springer
16 years 23 days ago
Effective keyword search for valuable lcas over xml documents
In this paper, we study the problem of effective keyword search over XML documents. We begin by introducing the notion of Valuable Lowest Common Ancestor (VLCA) to accurately and ...
Guoliang Li, Jianhua Feng, Jianyong Wang, Lizhu Zh...
SSDBM
2008
IEEE
177views Database» more  SSDBM 2008»
16 years 29 days ago
Prioritized Evaluation of Continuous Moving Queries over Streaming Locations
Abstract. Existing approaches to the management of streaming positional updates generally assume that all active user requests have equal importance, ignoring the possibility of an...
Kostas Patroumpas, Timos K. Sellis
SIGMOD
2008
ACM
162views Database» more  SIGMOD 2008»
16 years 6 months ago
Event queries on correlated probabilistic streams
A major problem in detecting events in streams of data is that the data can be imprecise (e.g. RFID data). However, current state-ofthe-art event detection systems such as Cayuga ...
Christopher Ré, Dan Suciu, Julie Letchner, ...