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» Structured Materialized Views for XML Queries
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SIGMOD
2002
ACM
169views Database» more  SIGMOD 2002»
14 years 7 months ago
Covering indexes for branching path queries
In this paper, we ask if the traditional relational query acceleration techniques of summary tables and covering indexes have analogs for branching path expression queries over tr...
Raghav Kaushik, Philip Bohannon, Jeffrey F. Naught...
DOLAP
2000
ACM
13 years 11 months ago
CUBIST: A New Algorithm For Improving the Performance of Ad-hoc OLAP Queries
Being able to efficiently answer arbitrary OLAP queries that aggregate along any combination of dimensions over numerical and categorical attributes has been a continued, major co...
Lixin Fu, Joachim Hammer
ICDE
1999
IEEE
184views Database» more  ICDE 1999»
14 years 8 months ago
Document Warehousing Based on a Multimedia Database System
Nowadays, structured data such as sales and business forms are stored in data warehouses for decision makers to use. Further, unstructured data such as emails, html texts, images,...
Hiroshi Ishikawa, Kazumi Kubota, Yasuo Noguchi, Ko...
WWW
2007
ACM
14 years 8 months ago
Collaboratively Building Structured Knowledge with DBin: From del.icio.us Tags to an "RDFS Folksonomy"
DBin is a Semantic Web application that enables groups of users with a common interest to cooperatively create semantically structured knowledge bases. These user groups, which we...
Giovanni Tummarello, Christian Morbidoni
VLDB
2007
ACM
229views Database» more  VLDB 2007»
14 years 1 months ago
Sum-Max Monotonic Ranked Joins for Evaluating Top-K Twig Queries on Weighted Data Graphs
In many applications, the underlying data (the web, an XML document, or a relational database) can be seen as a graph. These graphs may be enriched with weights, associated with t...
Yan Qi 0002, K. Selçuk Candan, Maria Luisa ...