Sampling from a moving window over streaming data
SODA '02 Proceedings of the thirteenth annual ACM-SIAM symposium on Discrete algorithms
XAL: an algebra for XML query optimization
ADC '02 Proceedings of the 13th Australasian database conference - Volume 5
Relational Databases for Querying XML Documents: Limitations and Opportunities
VLDB '99 Proceedings of the 25th International Conference on Very Large Data Bases
Yet Another Query Algebra For XML Data
IDEAS '02 Proceedings of the 2002 International Symposium on Database Engineering & Applications
ECOOP '00 Proceedings of the Workshops, Panels, and Posters on Object-Oriented Technology
DBPL '01 Revised Papers from the 8th International Workshop on Database Programming Languages
Storage and Retrieval of XML Documents Using Object-Relational Databases
DEXA '99 Proceedings of the 10th International Conference on Database and Expert Systems Applications
ICDE '00 Proceedings of the 16th International Conference on Data Engineering
XRANK: ranked keyword search over XML documents
Proceedings of the 2003 ACM SIGMOD international conference on Management of data
Tree logical classes for efficient evaluation of XQuery
SIGMOD '04 Proceedings of the 2004 ACM SIGMOD international conference on Management of data
TOSS: an extension of TAX with ontologies and similarity queries
SIGMOD '04 Proceedings of the 2004 ACM SIGMOD international conference on Management of data
An efficient and versatile query engine for TopX search
VLDB '05 Proceedings of the 31st international conference on Very large data bases
Content Syndication with RSS
Client behavior and feed characteristics of RSS, a publish-subscribe system for web micronews
IMC '05 Proceedings of the 5th ACM SIGCOMM conference on Internet Measurement
XSEarch: a semantic search engine for XML
VLDB '03 Proceedings of the 29th international conference on Very large data bases - Volume 29
From tree patterns to generalized tree patterns: on efficient evaluation of XQuery
VLDB '03 Proceedings of the 29th international conference on Very large data bases - Volume 29
ACM SIGMOD Record
Semantic-based Merging of RSS Items
World Wide Web
Multi-query optimization for semantic news feed query
Proceedings of the International Conference on Management of Emergent Digital EcoSystems
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Existing XML query algebras are not fully appropriate to retrieve RSS news items mainly due to three reasons: 1) RSS is text rich and its content is dependent on the wording and verbification of the author, thus semantic aware operators are needed; 2) news items are dynamic and consequently time oriented retrieval is needed; 3) a news item may evolve through time, or overlap with other news items and hence identifying relationships between items is also needed. In this paper, we aim to solve these issues by providing a dedicated RSS algebra based on semantic-aware operators that consider RSS characteristics. The provided operators are application domain specific and can be tuned according to the user preferences. We also provide a set of query rewriting and equivalence rules that would be used during query simplification and optimization. In addition and in order to validate our proposal, we present here our prototype that allows a user to formulate RSS query using our operators.