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Cited by 332

The DOI matches its Crossref record; 19 of the 19 references it cites were found in a registry or an index.

Continual queries for Internet scale event-driven information delivery

Ling Liu, Pu, C., Wei Tang·1999·IEEE Transactions on Knowledge and Data Engineering

Abstract

We introduce the concept of continual queries, describe the design of a distributed event-driven continual query system-OpenCQ, and outline the initial implementation of OpenCQ on top of the distributed interoperable information mediation system DIOM. Continual queries are standing queries that monitor update of interest and return results whenever the update reaches specified thresholds. In OpenCQ, users may specify to the system the information they would like to monitor (such as the events or the update thresholds they are interested in). Whenever the information of interest becomes available, the system immediately delivers it to the relevant users; otherwise, the system continually monitors the arrival of the desired information and pushes it to the relevant users as it meets the specified update thresholds. In contrast to conventional pull-based data management systems such as DBMSs and Web search engines, OpenCQ exhibits two important features: it provides push-enabled, event-driven, content-sensitive information delivery capabilities; and it combines pull and push services in a unified framework. By event-driven we mean that the update events of interest to be monitored are specified by users or applications. By content-sensitive, we mean the evaluation of the trigger condition happens only when a potentially interesting change occurs. By push-enabled, we mean the active delivery of query results or triggering of actions without user intervention.

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Metadata

Authors
Liu, L., Pu, C., & Tang, W.
Venue
IEEE Transactions on Knowledge and Data Engineering
Published
1999
Volume
11
Issue
4
Pages
610-628
ISSN
1041-4347 (ISSN-L)
OpenAlex
W2097432384
Cited by
332
References
19
FWCI
36.54
Type
journal article
Language
en
Open access
closed

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CoChat. (2026). Citation check: Continual queries for Internet scale event-driven information delivery. https://app.cochat.ai/papers/10.1109/69.790816
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Liu, L., Pu, C., & Tang, W. (1999). Continual queries for Internet scale event-driven information delivery. IEEE Transactions on Knowledge and Data Engineering. https://doi.org/10.1109/69.790816

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