Results 1 to 10 of about 585,751 (214)
Video Database Modeling and Temporal Pattern Retrieval using Hierarchical Markov Model Mediator [PDF]
22nd International Conference on Data Engineering Workshops (ICDEW'06), 2006 The dream of pervasive multimedia retrieval and reuse will not be realized without incorporating semantics in the multimedia database. As video data is penetrating many information systems, the need for database support for video data evolves. Hence, we propose an innovative database modeling mechanism called Hierarchical Markov Model Mediator (HMMM ...
Na Zhao, Shu-Ching Chen, Mei-Ling Shyu
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A simulation model to aid in the design and tuning of hierarchical databases [PDF]
Proceedings of the 7th conference on Winter simulation - WSC '74, 1974 Bell Laboratories has developed a data management system for hierarchical databases. The system is designed in such a way that its performance can be significantly affected by a number of parameters which can be manipulated to “tune” an installation for minimum response time and lowest cost. In order to study the relationships among these parameters, a
Wayne A. Hall
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The relational modeling of hierarchical data in biodiversity databases [PDF]
DatabaseAbstract The unifying element of all biodiversity data is the issue of taxon hierarchy modeling. We compared 25 existing databases in terms of handling taxa hierarchy and presentation of this data. We used documentation or demo installations of databases as a source of information and next in line was the analysis of structures using R ...
Petr Novotný, Jan Wild
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Hierarchical database management model with uncertain parameters
IOP Conference Series: Materials Science and Engineering, 2020 Abstract Decision making in large technical, biological, economic and other systems always requires the creation of a complex information system. This implies the need to create sophisticated software for the safe storage of information, its updating and management. At the same time, there should be a convenient and easy to use interface
T I Korotkova, A.A. Mokhov
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MODEL FOR DYNAMIC AND HIERARCHICAL DATA REPOSITORY IN RELATIONAL DATABASE
Computer Science, 2018 The aim of this research is to build an open schema model for digital sources repository in the relational database. It required us to develop a few advanced techniques. One of them was to keep and maintain a hierarchical data structure pushed into the repository.
Mateusz Piech +5 more
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A hierarchical access control model for video database systems [PDF]
ACM Transactions on Information Systems, 2003 Content-based video database access control is becoming very important, but it depends on the progresses of the following related research issues: (a) efficient video analysis for supporting semantic visual concept representation; (b) effective video database indexing structure; (c) the development of suitable video database models; and (d) the ...
Elisa Bertino +5 more
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Compound key word generation from document databases using a hierarchical clustering ART model [PDF]
Intelligent Data Analysis, 1997 The growing availability of databases on the information highways motivates the development of new processing tools able to deal with a heterogeneous and changing information environment. A highly desirable feature of data processing systems handling this type of information is the ability to automatically extract its own key words.
Ana Muñoz
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Hierarchical models for multiple, rare outcomes using massive observational healthcare databases
Statistical Analysis and Data Mining: The ASA Data Science Journal, 2016 Clinical trials often lack power to identify rare adverse drug events (ADEs) and therefore cannot address the threat rare ADEs pose, thus motivating the need for new ADE detection techniques. Emerging national patient claims and electronic health record databases have inspired post‐approval early detection methods like the Bayesian self‐controlled case
Trevor Shaddox +4 more
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Generic database cost models for hierarchical memory systems [PDF]
, 2002 Accurate prediction of operator execution time is a prerequisite for database query optimization. Although extensively studied for conventional disk-based DBMSs, cost modeling in main-memory DBMSs is still an open issue. Recent database research has demonstrated that memory access is more and more becoming a significant-- if not the major--cost ...
Stefan Manegold +2 more
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Hierarchical Model for Preserving Privacy in Vertically Partitioned Distributed Databases
International Journal of Computer Applications, 2013 Data sharing is an important task in the world of globalization. Organizations, government offices and hospitals release data to the public for the purpose of analysis and research. While publishing data to public, privacy is to be provided to the sensitive information.
Rayudu Srinivas, Anurag Chandra
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