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» On the Efficiency of Provenance Queries
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SIGMOD
2004
ACM
163views Database» more  SIGMOD 2004»
16 years 6 months ago
FleXPath: Flexible Structure and Full-Text Querying for XML
Querying XML data is a well-explored topic with powerful databasestyle query languages such as XPath and XQuery set to become W3C standards. An equally compelling paradigm for que...
Sihem Amer-Yahia, Laks V. S. Lakshmanan, Shashank ...
SIGMOD
2003
ACM
174views Database» more  SIGMOD 2003»
16 years 6 months ago
ViST: A Dynamic Index Method for Querying XML Data by Tree Structures
With the growing importance of XML in data exchange, much research has been done in providing flexible query facilities to extract data from structured XML documents. In this pape...
Haixun Wang, Sanghyun Park, Wei Fan, Philip S. Yu
DIALM
1999
ACM
127views Algorithms» more  DIALM 1999»
15 years 11 months ago
The performance of query control schemes for the zone routing protocol
—In this paper, we study the performance of route query control mechanisms for the Zone Routing Protocol (ZRP) for ad hoc networks. ZRP proactively maintains routing information ...
Zygmunt J. Haas, Marc R. Pearlman
DEBS
2008
ACM
15 years 8 months ago
Real-time, load-adaptive processing of continuous queries over data streams
We introduce a new type of query, called a real-time continuous query (RCQ), that captures the real-time requirements of processing data streams. We develop techniques to efficien...
Dhananjay Kulkarni, Chinya V. Ravishankar, Mitch C...
SIGIR
2010
ACM
15 years 6 months ago
Generalized syntactic and semantic models of query reformulation
We present a novel approach to query reformulation which combines syntactic and semantic information by means of generalized Levenshtein distance algorithms where the substitution...
Amac Herdagdelen, Massimiliano Ciaramita, Daniel M...