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» The complexity of XPath query evaluation
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PVLDB
2008
146views more  PVLDB 2008»
13 years 8 months ago
Graceful database schema evolution: the PRISM workbench
Supporting graceful schema evolution represents an unsolved problem for traditional information systems that is further exacerbated in web information systems, such as Wikipedia a...
Carlo Curino, Hyun Jin Moon, Carlo Zaniolo
ADBIS
2006
Springer
182views Database» more  ADBIS 2006»
14 years 2 months ago
A Middleware-Based Approach to Database Caching
Database caching supports declarative query processing close to the application. Using a full-fledged DBMS as cache manager, it enables the evaluation of specific project-select-...
Andreas Bühmann, Theo Härder, Christian ...
ICLP
2007
Springer
14 years 14 days ago
Web Sites Verification: An Abductive Logic Programming Tool
We present the CIFFWEB system, an innovative tool for the verification of web sites, relying upon abductive logic programming. The system allows the user to define rules that a web...
Paolo Mancarella, Giacomo Terreni, Francesca Toni
MTA
2007
141views more  MTA 2007»
13 years 8 months ago
Flexible integration of multimedia sub-queries with qualitative preferences
Complex multimedia queries, aiming to retrieve from large databases those objects that best match the query specification, are usually processed by splitting them into a set of m ...
Ilaria Bartolini, Paolo Ciaccia, Vincent Oria, M. ...
EDBT
2009
ACM
175views Database» more  EDBT 2009»
14 years 3 months ago
Towards materialized view selection for distributed databases
Materialized views (MV) can significantly improve the query performance of relational databases. In this paper, we consider MVs to optimize complex scenarios where many heterogen...
Leonardo Weiss Ferreira Chaves, Erik Buchmann, Fab...