Sciweavers

224 search results - page 28 / 45
» Rewriting XPath Queries Using Materialized Views
Sort
View
VLDB
2007
ACM
121views Database» more  VLDB 2007»
16 years 5 months ago
Efficient Keyword Search over Virtual XML Views
Emerging applications such as personalized portals, enterprise search and web integration systems often require keyword search over semi-structured views. However, traditional inf...
Feng Shao, Lin Guo, Chavdar Botev, Anand Bhaskar, ...
VLDB
2005
ACM
105views Database» more  VLDB 2005»
15 years 10 months ago
View Matching for Outer-Join Views
Prior work on computing queries from materialized views has focused on views defined by expressions consisting of selection, projection, and inner joins, with an optional aggrega...
Per-Åke Larson, Jingren Zhou
ADBIS
2005
Springer
116views Database» more  ADBIS 2005»
15 years 10 months ago
A Formal Model for the Problem of View Selection for Aggregate Queries
We present a formal analysis of the following view-selection problem: Given a set of queries and a database, return definitions of views that, when materialized in the database, w...
Jingni Li, Zohreh Asgharzadeh Talebi, Rada Chirkov...
DKE
1999
118views more  DKE 1999»
15 years 4 months ago
Designing Data Warehouses
A Data Warehouse DW is a database that collects and stores data from multiple remote and heterogeneous information sources. When a query is posed, it is evaluated locally, without...
Dimitri Theodoratos, Timos K. Sellis
DEBU
2008
136views more  DEBU 2008»
15 years 4 months ago
Towards a Unified Declarative and Imperative XQuery Processor
Since the birth of XML, the processing of XML query languages like XQuery/XQueryP has been widely researched in the academic and industrial communities. Most of the approaches con...
Zhen Hua Liu, Anguel Novoselsky, Vikas Arora