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ER
2008
Springer
110views Database» more  ER 2008»
13 years 9 months ago
Conjunctive Query Containment under Access Limitations
Access limitations may occur when querying data sources over the web or heterogeneous data sources presented as relational tables: this happens, for instance, in Data Exchange and ...
Andrea Calì, Davide Martinenghi
ADBIS
2009
Springer
140views Database» more  ADBIS 2009»
14 years 2 months ago
Optimizing Maintenance of Constraint-Based Database Caches
Abstract. Caching data reduces user-perceived latency and often enhances availability in case of server crashes or network failures. DB caching aims at local processing of declarat...
Joachim Klein 0002, Susanne Braun
LAWEB
2003
IEEE
14 years 1 months ago
Finding Buying Guides with a Web Carnivore
Research on buying behavior indicates that buying guides perform an important role in the overall buying process. However, while many buying guides can be found on the Web, findin...
Reiner Kraft, Raymie Stata
WWW
2007
ACM
14 years 8 months ago
Web object retrieval
The primary function of current Web search engines is essentially relevance ranking at the document level. However, myriad structured information about real-world objects is embed...
Zaiqing Nie, Yunxiao Ma, Shuming Shi, Ji-Rong Wen,...
ICDE
2008
IEEE
127views Database» more  ICDE 2008»
14 years 9 months ago
Querying Data under Access Limitations
Data sources on the web are often accessible through web interfaces that present them as relational tables, but require certain attributes to be mandatorily selected, e.g., via a w...
Andrea Calì, Davide Martinenghi