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Social and Behavioral Sciences Commons

Open Access. Powered by Scholars. Published by Universities.®

Engineering

Study

2007

Articles 1 - 2 of 2

Full-Text Articles in Social and Behavioral Sciences

Impact Of Using Different Models In Practice - A Case Study With The Simplified Methods Of Iso 13790 Standard And Detailed Modelling Programs, Georgios Kokogiannakis, Jo Clarke, Paul Strachan Jan 2007

Impact Of Using Different Models In Practice - A Case Study With The Simplified Methods Of Iso 13790 Standard And Detailed Modelling Programs, Georgios Kokogiannakis, Jo Clarke, Paul Strachan

Faculty of Engineering and Information Sciences - Papers: Part A

The updated ISO 13790 Standard is part of the new set of CEN Standards that supports the European Energy Performance of Buildings Directive (EPBD) requirement for a general framework for calculation of the energy consumption of buildings. The Standard sets out procedures for space heating and cooling energy calculations, allowing the use of three different methods: a simplified monthly quasi-steady state method, a simple-hourly method and detailed simulation. This paper examines the implications of allowing different methods to be used for assessing the energy usage. The research method used was to undertake a comparison of the various methods applied to …


A Study Of Hippocampal Shape Difference Between Genders By Efficient Hypothesis Test And Discriminative Deformation, Luping Zhou, Richard Hartley, Paulette Lieby, Nick Barnes, Kaarin Anstey, Nicolas Cherbuin, Perminder Sachdev Jan 2007

A Study Of Hippocampal Shape Difference Between Genders By Efficient Hypothesis Test And Discriminative Deformation, Luping Zhou, Richard Hartley, Paulette Lieby, Nick Barnes, Kaarin Anstey, Nicolas Cherbuin, Perminder Sachdev

Faculty of Engineering and Information Sciences - Papers: Part A

Hypothesis testing is an important way to detect the statistical difference between two populations. In this paper, we use the Fisher permutation and bootstrap tests to differentiate hippocampal shape between genders. These methods are preferred to traditional hypothesis tests which impose assumptions on the distribution of the samples. An efficient algorithm is adopted to rapidly perform the exact tests. We extend this algorithm to multivariate data by projecting the original data onto an "informative direction" to generate a scalar test statistic. This "informative direction" is found to preserve the original discriminative information. This direction is further used in this paper …