Global ETD Search
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Showing 1 to 11 of 11 for “"Temporal database"”.
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Adoption of a visual model for temporal database representation
… technology, conceptual model representation of database schemas is challenging for users both in the Software Development Life Cycle (SDLC) and the Human-Computer Interaction (HCI) domain. The primary way to resolve this issue, in both domains, is to use a model that is concise, interpretable …
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The Annotation Station : an open source technology for data visualization and annotation of large biomedical databases
… Physiology (LCP) to collect and annotate large databases of physiologic signals in order to facilitate an open initiative to develop algorithms to automate a variety of clinical tasks [1]. The success of this approach motivated the collection of a temporal database of signals typically collected …
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Modelling and managing temporal data and its application to Scottish dental information systems.
… information; to process such data requires database management systems which support the evolution of entities. Conventional databases tend to allow users to operate only upon the latest data state and lack the capability to record and process the time-varying aspect of the real world. To …
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Valid-time indeterminacy.
… it is known that an event stored in a temporal database did in fact occur, but it is not known exactly when the event occurred. We extend a tuple-timestamped temporal data model to support valid-time indeterminacy and outline its implementation. This work is novel in that previous …
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The representation and management of evolving features in geospatial databases
… in a manner that reflects human perception. Most database systems used in geographic information systems (GIS) are relational, and change is either captured by exhaustively storing all versions of data, or updates replace previous versions. This stems from the inherent diffculty of modelling …
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Temporal pattern recognition in multiparameter ICU data
… irrelevant alarms. We have developed a temporal database of several thousand ICU patient records to facilitate research in advanced monitoring systems. The MIMIC-II database includes high-resolution physiologic waveforms such as ECG, blood pressures waveforms, vital sign trends, …
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Aggregation in temporal databases
Temporal database systems extend relational database systems to support time-varying information. One important such extension is support for time-varying aggregate functions, such as a time-varying average. Our research will show that temporal aggregates may be specified in a semantically well …
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Towards trusted and efficient temporal relational databases
This research is to develop a blockchain based database based on a relational database management system (RDBMS). The database guarantees authenticity of the stored records using immutable and verifiable signatures. The database supports query evaluation over the entire timeline of the transaction …
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Towards a general temporal theory
… herein addresses time representation and temporal reasoning in the domain of artificial intelligence. A general temporal theory, as an extension of Alien and Hayes', Gallon's and Vilain's theories, is proposed which treats both time intervals and time points on an equal footing; that is, …
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Translating Data Between Xml Schema and 6Nf Conceptual Models
… Normal Form (6NF) is a term used in relational database theory by Christopher Date to describe databases which decompose relational variables to irreducible elements. While this form may be unimportant for non-temporal data, it is certainly important for data containing temporal variables of a …
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Self-tuning data exploration checkpoint
Submission original under an indefinite embargo labeled 'Open Access'. The submission was exported from vireo on 2025-10-19 without embargo terms