Imprecise information and uncertainty in information systems
ACM Transactions on Information Systems (TOIS)
A semantics for complex objects and approximate answers
Journal of Computer and System Sciences
A digital on-demand video service supporting content-based queries
MULTIMEDIA '93 Proceedings of the first ACM international conference on Multimedia
Querying video libraries
Video parsing, retrieval and browsing: an integrated and content-based solution
Proceedings of the third ACM international conference on Multimedia
Aspects of partial information in databases
Aspects of partial information in databases
SIGMOD '95 Proceedings of the 1995 ACM SIGMOD international conference on Management of data
On semantic issues connected with incomplete information databases
ACM Transactions on Database Systems (TODS)
Maintaining knowledge about temporal intervals
Communications of the ACM
Video Database Systems: Issues, Products and Applications
Video Database Systems: Issues, Products and Applications
Benchmarking Multimedia Databases
Multimedia Tools and Applications
Composition and Search with a Video Algebra
IEEE MultiMedia
SQL Extension for Interval Data
IEEE Transactions on Knowledge and Data Engineering
Interval-Based Conceptual Models for Time-Dependent Multimedia Data
IEEE Transactions on Knowledge and Data Engineering
OVID: Design and Implementation of a Video-Object Database System
IEEE Transactions on Knowledge and Data Engineering
An Object-Oriented Query Processor that Produces Monotonically Improving Approximate Answers
Proceedings of the Seventh International Conference on Data Engineering
WWCA '97 Proceedings of the International Conference on Worldwide Computing and Its Applications
The Stratification System - A Design Emvironment for Random Access
Proceedings of the Third International Workshop on Network and Operating System Support for Digital Audio and Video
Architecture of a Multimedia Information System for Content-Based Retrieval
Proceedings of the Third International Workshop on Network and Operating System Support for Digital Audio and Video
A Temporal Foundation of Video Databases
Proceedings of the International Workshop on Temporal Databases: Recent Advances in Temporal Databases
VDB 5 Proceedings of the Fifth Working Conference on Visual Database Systems: Advances in Visual Information Management
Model for Interactive Retrieval of Videos and Still Images
IW-MMDBMS '95 Proceedings of the International Workshop on Multi-Media Database Management Systems
Extracting story units from long programs for video browsing and navigation
ICMCS '96 Proceedings of the 1996 International Conference on Multimedia Computing and Systems
ADBIS-DASFAA '00 Proceedings of the East-European Conference on Advances in Databases and Information Systems Held Jointly with International Conference on Database Systems for Advanced Applications: Current Issues in Databases and Information Systems
Modeling and Structuring Multiple Perspective Video for Browsing
ER '01 Proceedings of the 20th International Conference on Conceptual Modeling: Conceptual Modeling
Towards an integrated framework for querying collection of heterogeneous data
Proceedings of the 3rd International Conference on Ubiquitous Information Management and Communication
Two-Dimensional Retrieval in Synchronized Media Streams
DASFAA '09 Proceedings of the 14th International Conference on Database Systems for Advanced Applications
Semantic video fingerprinting and retrieval using face information
Image Communication
A web search method based on the temporal relation of query keywords
WISE'06 Proceedings of the 7th international conference on Web Information Systems
An annotation method and application for video contents based on a semantic graph
PCM'04 Proceedings of the 5th Pacific Rim conference on Advances in Multimedia Information Processing - Volume Part I
Structural and event based multimodal video data modeling
ADVIS'06 Proceedings of the 4th international conference on Advances in Information Systems
Flexible querying using structural and event based multimodal video data model
FQAS'06 Proceedings of the 7th international conference on Flexible Query Answering Systems
Towards a unified framework for context-preserving video retrieval and summarization
ICADL'05 Proceedings of the 8th international conference on Asian Digital Libraries: implementing strategies and sharing experiences
Extending information unit across media streams for improving retrieval effectiveness
Data & Knowledge Engineering
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While a query result in a traditional database is a subset of the database, in a video database, it is a set of subintervals extracted from the raw video sequence. It is very hard, if not impossible, to predetermine all the queries that will be issued in the future, and all the subintervals that will become necessary to answer them. As a result, conventional query frameworks are not applicable to video databases. In this paper, we propose a new video query model that computes query results by dynamically synthesizing needed subintervals from fragmentary indexed intervals in the database. We introduce new interval operations required for that computation. We also propose methods to compute relative relevance of synthesized intervals to a given query. A query result is a list of synthesized intervals sorted in the order of their degree of relevance.