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Social and Behavioral Sciences Commons™
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Full-Text Articles in Social and Behavioral Sciences
Dynamic Schema Navigation Using Formal Concept Analysis, Jon R. Ducrou, Bastian Wormuth, Peter W. Eklund
Dynamic Schema Navigation Using Formal Concept Analysis, Jon R. Ducrou, Bastian Wormuth, Peter W. Eklund
Faculty of Commerce - Papers (Archive)
This paper introduces a framework for relational schema navigation via a Web-based browser application that uses Formal Concept Analysis as the metaphor for analysis and interaction. Formal Concept Analysis is a rich framework for data analysis based on applied lattice and order theory. The application we develop, D-SIFT, is intended to provide users untrained in Formal Concept Analysis with practical and intuitive access to the core functionality of Formal Concept Analysis for the purpose of exploring relational database schema. D-SIFT is a Web-based information systems architecture that supports natural search processes over a preexisting database schema and its content.
Dynamic Modeling And Simulation Of A Multi Effect Humidification-Dehumidification Desalination Unit, Mohammed I. Sohel, B Dawoud
Dynamic Modeling And Simulation Of A Multi Effect Humidification-Dehumidification Desalination Unit, Mohammed I. Sohel, B Dawoud
Faculty of Engineering and Information Sciences - Papers: Part A
Recently solar distillation using Multi Effect Humidification-dehumidification (MEH) cycle is receiving special attention. In this communication detailed models of MEH are presented that take into account most of the dynamic behavior with reasonable accuracy. Using these models simulation was carried out and the results of simulation were discussed in this paper. To find out the competence of the newly developed models, some of the simulation results were compared with the available experimental data in the literature. It turned out that the result of simulation give a very good agreement with the experimental data. The maximum deviation between simulation and experimental …
Dynamic Channel Allocation For Mobile Cellular Systems Using A Control Theoretical Approach, Yaya Wei, Chuang Lin, Raad Raad, Fengyuan Ren
Dynamic Channel Allocation For Mobile Cellular Systems Using A Control Theoretical Approach, Yaya Wei, Chuang Lin, Raad Raad, Fengyuan Ren
Faculty of Engineering and Information Sciences - Papers: Part A
The guard channel scheme in wireless mobile networks has attracted and is still drawing research interest owing to easy implementation and flexible control. Dynamic guard channel schemes have already been proposed in the literature to adapt to varying traffic load. This paper presents a novel control-theoretic approach to dynamically reserve guard channels called PI-Guard Channel (PI-GC) controller that maintains the handoff blocking probability (HBP) to a predefined value; while it still improves the channel resource utilization.
D-Sift: A Dynamic Simple Intuitive Fca Tool, Jon R. Ducrou, Bastian Wormuth, Peter W. Eklund
D-Sift: A Dynamic Simple Intuitive Fca Tool, Jon R. Ducrou, Bastian Wormuth, Peter W. Eklund
Faculty of Commerce - Papers (Archive)
This paper introduces D-SIFT, a Web-based browser application that provides untrained users in Formal Concept Analysis with practical and intuitive access to core analysis functionality in Formal Concept Analysis. D-SIFT is an information systems architecture that supports natural search processes over a predefined database schema and its attribute values. This enables the user to build concept lattices interactively through the selection and refinement of dynamic definitions of search boundaries (via interaction with an object “zoom” feature), and dynamic selection of search scales (via interaction with an attribute “filter” feature), based on the attribute values contained within the database. The paper …