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Active database systems
1999
ACM Computing Surveys
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Active database systems support mechanisms that enable them to respond automatically to events that are taking place either inside or outside the database system itself. ...
active behavior description languages, execution models, and architectures. ...
ACKNOWLEDGMENTS We are grateful to our colleagues for useful discussions on active database systems, including Alex Buchmann, Andrew Dinn, Alvaro Fernandes, Ray Fernandez, Peter Gray, Jon Iturrioz, Arturo ...
doi:10.1145/311531.311623
fatcat:oye4mjjz2femjcnmjaa4fagxdm
Event-processing network model and implementation
2008
IBM Systems Journal
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The Internet Archive has digitized a microfilm copy of this work. It may be possible to borrow a copy for reading.
Event-processing network model and implementation
This paper presents a conceptual model of an event-processing network for expressing the event-based interactions and event-processing specifications among ...
The order among the events from different event streams to produce the combined event stream is implementation-specific and is not covered by the conceptual model. ...
doi:10.1147/sj.472.0321
fatcat:vakmnkpsb5dedee6vcoc6jb2m4
Interactive hypermedia applications: A model and its implementation
1995
Software, Practice & Experience
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Work in the area of media object synchronization focuses on the definition of a specification model that completely describes multimedia ...
The system supports integration and coordination of audio, video, text and numerical data originating from databases, or live via real-world sources from interconnected high-speed networks. 1 In a DMIS ...
Miscellaneous support classes There are three application specific action classes which can be used with condition events we thought important, but these are not in Figure 8 . ...
doi:10.1002/spe.4380250907
fatcat:sgx3ehpxkzdxhijz3bk7selpj4
JDEVS: an implementation of a DEVS based formal framework for environmental modelling
2004
Environmental Modelling & Software
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In this paper we propose a Discrete EVent System specification (DEVS) based modelling framework as a formal basis in environmental modelling. ...
specification of models in vector space. ...
DSDEVS allows the specification of dynamic structured networks of discrete event systems. Proofs that DSDEVS models are DEVS models and closed under composition are available in (Barros, 1996) . ...
doi:10.1016/j.envsoft.2003.08.016
fatcat:km6tyshmizfclmd2zooepz6oly
D4.2: Risk Identification Database & Risk Reduction Measures Database
2021
Zenodo
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The databases gather the generic risk events associated with the implementation of the digital solutions of DWC by the cities and the associated risk reduction measures. ...
This report describes the Risk Identification Database (RIDB) and Risk Reduction Measures Database (RRMD). ...
Event ID Each entry in the RIDB is connected to a specific "Event ID" facilitating the reference to specific risks from the RIDB. ...
doi:10.5281/zenodo.6497049
fatcat:lekppqatdbhn5hlf3cx5pergyq
An Active Temporal Model for Network Management Databases
[chapter]
1995
Integrated Network Management IV
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The event in the rule is specified using our proposed event specification language. ...
We propose a model of a database that combines and extends the features of active and temporal databases as a model for a network management database. ...
Implementation Model of ESL Operators In this section we will provide an implementation model of the ESL operators using colored Petri net (CPN). ...
doi:10.1007/978-0-387-34890-2_45
fatcat:ysxufeasgrfnlcdx3ttq6win4i
Introducing uncertainty in complex event processing: model, implementation, and validation
2014
Computing
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This asks for a Complex Event Processing (CEP) engine specifically designed to timely process low level event notifications to identify higher level composite events according to a set of user-defined ...
In particular, they are unable to consider, model, and propagate the uncertainty that exists in most scenarios. Moving from this premise, we present CEP2U (Complex Event Processing under Uncertainty), ...
Data Models and Rule Definition Languages The data model determines the way each system models and interprets incoming information: as mentioned in Section 2, the database community gave birth to Data ...
doi:10.1007/s00607-014-0404-y
fatcat:asqr4w3q6rdqlfoyqwtawhg2de
Towards an infrastructure for temporal databases
1994
SIGMOD record
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Fabio Grandi's notes were helpful in t.he preparation of Section 3. This report benefited from the viewpoints expressed by the workshop participants, listed in Table 1 . ...
However, the findings expressed in this report do not necessarily reflect the official position of any of the sponsoring agencies. ...
Such basic time events can be used like any other basic events in defining composite events using a composite algebra.. ...
doi:10.1145/181550.181557
fatcat:r3hqjgabajevzfuar6r27klkwu
Active rules for sensor databases
2004
Proceeedings of the 1st international workshop on Data management for sensor networks in conjunction with VLDB 2004 - DMSN '04
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In this paper we propose a second database technology, namely active rules, that provides a natural computational paradigm for sensor network applications which require reactive behavior, such as security ...
Recent years have witnessed a rapidly growing interest in query processing in sensor and actuator networks. ...
In traditional active database (and web-based) systems the condition and action parts of an ECA rule are most often tightly coupled, that is the execution model of a particular rule is [E][CA]: a database ...
doi:10.1145/1052199.1052215
dblp:conf/dmsn/ZoumboulakisRP04
fatcat:epi3ldjl4zgwfm6dzr35gplt7i
Multiware Database: A Distributed Object Database System for Multimedia Support
[chapter]
1995
Open Distributed Processing
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Representation of multimedia documents in this system is normalized, in the sense that distinct aspects of documents, such as structural and exhibition aspects, are stored as distinct objects in the database ...
This paper describes the Multiware Database, a database capable to store and manage complex multimedia documents using the features of both object database management systems and open distributed systems ...
Implementation of multimedia information systems, and more specifically of multimedia databases, is a relatively new field. ...
doi:10.1007/978-0-387-34882-7_34
fatcat:xlvzarbgsfabhawxk3hdde7sbm
D3.5 Final implementation of the interworking reference model
2021
Zenodo
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We explain how IWL implements a distributed transaction logic in order to perform the deployment of an experiment. ...
This deliverable D3.5 is the final deliverable that describes the implementation and testing of the Interworking Layer (IWL). ...
The last state of a specific operation is stored in an in-memory storage implemented with Redis, a key-value database. ...
doi:10.5281/zenodo.4964932
fatcat:sg4ixnyr7fbzxnzinljqfq6lli
Modeling and Distributed Implementation of Synchronization and Coordination in Multi-Robot Systems
2012
Procedia Engineering
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This paper deals with control system design and implementation problems encountered in multiple robot systems. ...
A systematic method of constructing hierarchical net models is described for their direct implementation such that the net is translated into the detailed net by stepwise refinements from the highest task ...
Specification of Discrete Event Robotic Task A specification procedure for discrete event robotic systems based on net models is as follows. ...
doi:10.1016/j.proeng.2012.07.282
fatcat:44quz44eafhcpl267a64sfnvhq
ECA Rule Analysis in a Distributed Active Database
2009
2009 International Conference on Computer Technology and Development
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Active database systems integrate event-based rule processing with traditional database functionality. ...
The model most widely used to represent event-based rules is the Event-Condition-Action rule (ECA rule) model. ...
In our previous work, the CCPN was introduced for modeling and simulation of active database behavior and its corresponding implementation was realized too. ...
doi:10.1109/icctd.2009.282
fatcat:vmzet7m2szffvmla6jci6uhlb4
Supporting temporal multimedia operations in object-oriented database systems
1994
Proceedings of IEEE International Conference on Multimedia Computing and Systems MMCS-94
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In this paper we present an approach of extending the data model of an object-oriented database system by means of schedules which allow for the description of the temporal characteristics of multimedia ...
Second, we introduce the specification language as an extension to the VODAK Model Language and illustrate the concepts by examples. ...
Operational specification of schedules The operational specification, or in other words the implementation of composite schedules, is the place where temporal relationships between different operations ...
doi:10.1109/mmcs.1994.292479
dblp:conf/icmcs/AbererK94
fatcat:3g7qm2eqkzgxxgkzsbfl5w5c2a
Repositories and Object Oriented Databases
[chapter]
1997
Informatik aktuell
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First, a repository system has built-in information models, which are database schemas or object models that cover both generic and tool-specific kinds of information. ...
A repository is a shared database of information about engineered artifacts. ...
Acknowledgments This paper is based in part on my repository tutorial at the 1995 International Conference on Very Large Data Bases, in Zurich. ...
doi:10.1007/978-3-642-60730-1_3
dblp:conf/btw/Bernstein97
fatcat:rwixe5a32zc6rcrgb4xfgitrpa
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