Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
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Showing 1 to 5 of 5 for “"Valid time"”.
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Valid Time RDF
… decision making by machines. Naturally, time-varying data and knowledge are required in Semantic Web applications to incorporate time and further reason about it. However, the original specifications of Resource Description Framework (RDF) and Web Ontology Language (OWL) do not include …
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Valid-time indeterminacy.
In 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 …
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Human-centered systems analysis of aircraft separation from adverse weather
… methods articulated the value of forecast valid time according to a space-time reference frame. The models and frameworks were validated using focused interviews with ten national subject matter experts in aviation meteorology or flight operations. The experts unanimously supported the …
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Diffraction-based Optical Architectures for Processing One-dimensional Data
… and then in a vectorial framework, that rigorous time-dependent solutions reveal a temporal source of error in the expected performance of DPIC devices, with the error emerging from the gap between solutions to the wave equation over two spatial dimensions and presumed time-separable harmonic …
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Translating Data Between Xml Schema and 6Nf Conceptual Models
… data containing temporal variables of a point-in-time or interval nature. With the advent of Data Warehousing 2.0 (DW 2.0), there is now an increased emphasis on using fully-temporalized databases in the context of data warehousing, in particular with approaches such as the Anchor Model and Data …