Answering queries using templates with binding patterns (extended abstract)
PODS '95 Proceedings of the fourteenth ACM SIGACT-SIGMOD-SIGART symposium on Principles of database systems
Query optimization in the presence of limited access patterns
SIGMOD '99 Proceedings of the 1999 ACM SIGMOD international conference on Management of data
Computing capabilities of mediators
SIGMOD '99 Proceedings of the 1999 ACM SIGMOD international conference on Management of data
Answering queries with useful bindings
ACM Transactions on Database Systems (TODS)
Proceedings of the 27th International Conference on Very Large Data Bases
Answering queries using views: A survey
The VLDB Journal — The International Journal on Very Large Data Bases
Query containment for data integration systems
Journal of Computer and System Sciences - Special issue on PODS 2000
Computing complete answers to queries in the presence of limited access patterns
The VLDB Journal — The International Journal on Very Large Data Bases
The Lixto data extraction project: back and forth between theory and practice
PODS '04 Proceedings of the twenty-third ACM SIGMOD-SIGACT-SIGART symposium on Principles of database systems
Processing first-order queries under limited access patterns
PODS '04 Proceedings of the twenty-third ACM SIGMOD-SIGACT-SIGART symposium on Principles of database systems
MetaQuerier: querying structured web sources on-the-fly
Proceedings of the 2005 ACM SIGMOD international conference on Management of data
VLDB '05 Proceedings of the 31st international conference on Very large data bases
Efficiently ordering subgoals with access constraints
Proceedings of the twenty-fifth ACM SIGMOD-SIGACT-SIGART symposium on Principles of database systems
Rewriting queries using views with access patterns under integrity constraints
Theoretical Computer Science
Conjunctive Query Containment under Access Limitations
ER '08 Proceedings of the 27th International Conference on Conceptual Modeling
Querying Data under Access Limitations
ICDE '08 Proceedings of the 2008 IEEE 24th International Conference on Data Engineering
Data integration for the relational web
Proceedings of the VLDB Endowment
Optimal algorithms for crawling a hidden database in the web
Proceedings of the VLDB Endowment
Ontology evolution without tears
Web Semantics: Science, Services and Agents on the World Wide Web
| Hi-index | 0.00 |
Data stored outside Web pages and accessible from the Web, typically through HTML forms, consitute the so-called Deep Web. Such data are of great value, but difficult to query and search. We survey techniques to optimize query processing on the Deep Web, in a setting where data are represented in the relational model. We illustrate optimizations both at query plan generation time and at runtime, highlighting the role of integrity constraints. We discuss several prototype systems that address the query processing problem.