Continuous queries over append-only databases
SIGMOD '92 Proceedings of the 1992 ACM SIGMOD international conference on Management of data
NiagaraCQ: a scalable continuous query system for Internet databases
SIGMOD '00 Proceedings of the 2000 ACM SIGMOD international conference on Management of data
Filtering algorithms and implementation for very fast publish/subscribe systems
SIGMOD '01 Proceedings of the 2001 ACM SIGMOD international conference on Management of data
Monitoring XML data on the Web
SIGMOD '01 Proceedings of the 2001 ACM SIGMOD international conference on Management of data
Continual Queries for Internet Scale Event-Driven Information Delivery
IEEE Transactions on Knowledge and Data Engineering
The Data Warehouse of Newsgroups
ICDT '99 Proceedings of the 7th International Conference on Database Theory
Efficient Filtering of XML Documents for Selective Dissemination of Information
VLDB '00 Proceedings of the 26th International Conference on Very Large Data Bases
Efficient Matching for Web-Based Publish/Subscribe Systems
CooplS '02 Proceedings of the 7th International Conference on Cooperative Information Systems
DBPL '01 Revised Papers from the 8th International Workshop on Database Programming Languages
ICDE '99 Proceedings of the 15th International Conference on Data Engineering
Efficient Query Subscription Processing in a Multicast Environment
ICDE '00 Proceedings of the 16th International Conference on Data Engineering
Efficient Filtering of XML Documents with XPath Expressions
ICDE '02 Proceedings of the 18th International Conference on Data Engineering
Web architectures for scalable moving object servers
Proceedings of the 10th ACM international symposium on Advances in geographic information systems
XPath queries on streaming data
Proceedings of the 2003 ACM SIGMOD international conference on Management of data
RE-tree: an efficient index structure for regular expressions
The VLDB Journal — The International Journal on Very Large Data Bases
Path sharing and predicate evaluation for high-performance XML filtering
ACM Transactions on Database Systems (TODS)
EXPedite: a system for encoded XML processing
Proceedings of the thirteenth ACM international conference on Information and knowledge management
XML stream processing using tree-edit distance embeddings
ACM Transactions on Database Systems (TODS) - Special Issue: SIGMOD/PODS 2003
ACM Transactions on Database Systems (TODS)
Toward expressive syndication on the web
Proceedings of the 16th international conference on World Wide Web
Query processing for high-volume XML message brokering
VLDB '03 Proceedings of the 29th international conference on Very large data bases - Volume 29
Towards an internet-scale XML dissemination service
VLDB '04 Proceedings of the Thirtieth international conference on Very large data bases - Volume 30
Syndication on the Web using a description logic approach
Web Semantics: Science, Services and Agents on the World Wide Web
Web service decomposition: Edge computing architecture for cache-friendly e-commerce applications
Electronic Commerce Research and Applications
XML filtering with XPath expressions containing parent and ancestor axes
Information Sciences: an International Journal
A survey on XML streaming evaluation techniques
The VLDB Journal — The International Journal on Very Large Data Bases
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Applications such as online shopping, e-commerce, and supply-chain management require the ability to manage large sets of specifications of products and/or services as well as of consumer requirements, and call for efficient matching of requirements to specifications.Requirements are best viewed as "queries" and specifications as data, often represented in XML. We present a framework where requirements and specifications are both registered with and are maintained by a registry. On a periodical basis, the registry matches new incoming specifications, e.g., of products and services, against requirements, and notifies the owners of the requirements of matches found. This problem is dual to the conventional problem of database query processing in that the size of data (e.g., a document that is streaming by) is quite small compared to the number of registered queries (which can be very large). For performing matches efficiently, we propose the notion of a "requirements index", a notion that is dual to a traditional index. We provide efficient matching algorithms that use the proposed indexes. Our prototype MatchMaker system implementation uses our requirements index-based matching algorithms as a core and provides timely notification service to registered users. We illustrate the effectiveness and scalability of the techniques developed with a detailed set of experiments.