Computational geometry: an introduction
Computational geometry: an introduction
The HiPAC project: combining active databases and timing constraints
ACM SIGMOD Record - Special Issue on Real-Time Database Systems
Principles of pictorial information systems design
Principles of pictorial information systems design
The design and analysis of spatial data structures
The design and analysis of spatial data structures
Introduction to algorithms
Situation monitoring for active databases
VLDB '89 Proceedings of the 15th international conference on Very large data bases
Segment indexes: dynamic indexing techniques for multi-dimensional interval data
SIGMOD '91 Proceedings of the 1991 ACM SIGMOD international conference on Management of data
Temporal databases: theory, design, and implementation
Temporal databases: theory, design, and implementation
The snapshot index: an I/O-optimal access method for timeslice queries
Information Systems
Maintaining knowledge about temporal intervals
Communications of the ACM
Object Database Standard: ODMG-93
Object Database Standard: ODMG-93
Temporal and Real-Time Databases: A Survey
IEEE Transactions on Knowledge and Data Engineering
Efficient Indexing Methods for Temporal Relations
IEEE Transactions on Knowledge and Data Engineering
Indexing Techniques for Historical Databases
Proceedings of the Fifth International Conference on Data Engineering
The TP-Index: A Dynamic and Efficient Indexing Mechanism for Temporal Databases
Proceedings of the Tenth International Conference on Data Engineering
VISUAL: A Graphical Icon-Based Query Language
ICDE '96 Proceedings of the Twelfth International Conference on Data Engineering
An Active Object-Oriented Database: A Multi-Paradigm Approach to Constraint Management
VLDB '93 Proceedings of the 19th International Conference on Very Large Data Bases
A Scientific Database System for Polymers and Materials Engineering Needs
Proceedings of the Seventh International Working Conference on Scientific and Statistical Database Management
Visual Query Systems: A Taxonomy
Proceedings of the IFIP TC2/WG 2.6 Second Working Conference on Visual Database Systems II
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This paper describes SciMMDB, a scientific multimedia database system designed for Polymer Science experiment data applications. SciMMDB maintains multimedia data of type video, text and picture (as well as other standard data types), and allows users to (1) form multimedia presentation streams about experiments, (2) define a presentation which organizes a number of presentation streams for playout purposes, and (3) control the playout of a presentation. To form video, text or picture streams, a presentation stream construction language is described. Queries in this language express spatial and temporal relationships involving content objects; and, efficient evaluation of such queries are facilitated by indexing structures. SciMMDB uses IB+ trees for queries involving temporal intervals. In SciMMDB, presentation streams are formed into a presentation using the notion of presentation graph. During the playout of a presentation, each presentation stream in the presentation is played out by a separate transaction, called an output agent. Such transactions communicate and synchronize with each other using the cooperative transaction model.