Simple and integrated heuristic algorithms for scheduling tasks with time and resource constraints
Journal of Systems and Software
POPL '87 Proceedings of the 14th ACM SIGACT-SIGPLAN symposium on Principles of programming languages
Introduction to the ISO specification language LOTOS
Computer Networks and ISDN Systems - Special Issue: Protocol Specification and Testing
Constraint logic programming languages
Communications of the ACM
The Z notation: a reference manual
The Z notation: a reference manual
Hybrid reasoning using universal attachment
Artificial Intelligence
Data modeling of time-based media
SIGMOD '94 Proceedings of the 1994 ACM SIGMOD international conference on Management of data
Selected papers of the 9th annual ACM SIGACT-SIGMOD-SIGART symposium on Principles of database systems
A quality-of-service specification for multimedia presentations
Multimedia Systems - Special issue on multimedia database systems
Vision: a digital video library
Proceedings of the first ACM international conference on Digital libraries
Optimization and relaxation in constraint logic languages
POPL '96 Proceedings of the 23rd ACM SIGPLAN-SIGACT symposium on Principles of programming languages
Strategic directions in constraint programming
ACM Computing Surveys (CSUR) - Special ACM 50th-anniversary issue: strategic directions in computing research
A framework for supporting quality-based multimedia presentation in educational digital libraries
IEEE ADL '97 Proceedings of the IEEE international forum on Research and technology advances in digital libraries
An integrated metric for video QoS
MULTIMEDIA '97 Proceedings of the fifth ACM international conference on Multimedia
Optimization and relaxation in logic languages
Optimization and relaxation in logic languages
Logics for specifying concurrent information systems
Logics for databases and information systems
Guest Editorial: Quality of Service in Multimedia Networks
Multimedia Tools and Applications
Analyzing the Multimedia Operating System
IEEE MultiMedia
Querying Multimedia Presentations Based on Content
IEEE Transactions on Knowledge and Data Engineering
Storage System Architectures for Continuous Media Data
FODO '93 Proceedings of the 4th International Conference on Foundations of Data Organization and Algorithms
A Logical Reconstruction of Constraint Relaxation Hierarchies in Logic Programming
ISMIS '93 Proceedings of the 7th International Symposium on Methodologies for Intelligent Systems
An Approach to Real-time Scheduling - but is it Really a Problem for Multimedia?
Proceedings of the Third International Workshop on Network and Operating System Support for Digital Audio and Video
Quality of Service Semantics for Multimedia Database Systems
DS-8 Proceedings of the IFIP TC2/WG2.6 Eighth Working Conference on Database Semantics- Semantic Issues in Multimedia Systems
Framework and requirements of Quality of Service for multimedia applications
IIS '97 Proceedings of the 1997 IASTED International Conference on Intelligent Information Systems (IIS '97)
Querying multimedia presentations
MMNET '97 Proceedings of the IEEE Conference on Protocols for Multimedia Systems - Multimedia Networking (PROMSMmNet'97)
Access control, confidentiality and privacy for video surveillance databases
Proceedings of the eleventh ACM symposium on Access control models and technologies
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Quality of Service (QoS) is defined as a set of perceivable attributes expressed in a user-friendly language with parameters that may be objective or subjective. Objective parameters are those related to a particular service and are measurable and verifiable. Subjective parameters are those based on the opinions of the end-users. We believe that quality of service should become an integral part of multimedia database systems and users should be able to query by requiring a quality of service from the system. The specification and enforcement of QoS presents an interesting challenge in multimedia systems development. A deal of effort has been done on QoS specification and control at the system and the network levels, but less work has been done at the application/user level. In this paper, we propose a language, in the style of constraint database languages, for formal specification of QoS constraints. The satisfaction by the system of the user quality requirements can be viewed as a constraint satisfaction problem, and the negotiation can be viewed as constraint optimization. We believe this paper represents a first step towards the development of a database framework for quality of service management in video databases. The contribution of this paper lies in providing a logical framework for specifying and enforcing quality of service in video databases. To our knowledge, this work is the first from a database perspective on quality of service management.