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SIGMOD
2007
ACM
123views Database» more  SIGMOD 2007»
14 years 7 months ago
Schema advisor for hybrid relational-XML DBMS
In response to the widespread use of the XML format for document representation and message exchange, major database vendors support XML in terms of persistence, querying and inde...
Mirella Moura Moro, Lipyeow Lim, Yuan-Chi Chang
SIGMOD
2004
ACM
124views Database» more  SIGMOD 2004»
14 years 7 months ago
BLAS: An Efficient XPath Processing System
We present BLAS , a Bi-LAbeling based System, for efficiently processing complex XPath queries over XML data. BLAS uses Plabeling to process queries involving consecutive child ax...
Yi Chen, Susan B. Davidson, Yifeng Zheng
SEMWEB
2010
Springer
13 years 5 months ago
Using Reformulation Trees to Optimize Queries over Distributed Heterogeneous Sources
Abstract. In order to effectively and quickly answer queries in environments with distributed RDF/OWL, we present a query optimization algorithm to identify the potentially relevan...
Yingjie Li, Jeff Heflin
TKDE
2012
312views Formal Methods» more  TKDE 2012»
11 years 10 months ago
Efficient Fuzzy Type-Ahead Search in XML Data
—In a traditional keyword-search system over XML data, a user composes a keyword query, submits it to the system, and retrieves relevant answers. In the case where the user has l...
Jianhua Feng, Guoliang Li
KDD
1998
ACM
148views Data Mining» more  KDD 1998»
13 years 11 months ago
Group Bitmap Index: A Structure for Association Rules Retrieval
Discovery of association rules from large databases of item sets is an important data mining problem. Association rules are usually stored in relational databases for future use i...
Tadeusz Morzy, Maciej Zakrzewicz