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The paper demonstrates the importance of feature selection for recurrent neural network applied to problem of one hour ahead forecasting of thermal comfort for office building heated by gas. Although the accuracy of the forecasting is similar for both the feed-forward and the recurrent network, the removal of features leads to accuracy reduction much earlier for the feed-forward network. The recurrent network can perform well even with less than 50% of features. This brings significant benefits...
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The paper demonstrates the importance of feature selection for recurrent neural network applied to problem of one hour ahead forecasting of thermal comfort for office building heated by gas. Although the accuracy of the forecasting is similar for both the feed-forward and the recurrent network, the removal of features leads to accuracy reduction much earlier for the feed-forward network. The recurrent network can perform well even with less than 50% of features. This brings significant benefits...
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The paper refers to the development of a continuous time mathematical heating model for a building unit based on the first principles. The model is described in terms of the state space variables, and a lumped parameter approach is used to represent the room air temperature and air density using mass and energy balances. The one-dimensional heat equation in cartesian coordinates and spherical coordinates is discretized in order to describe the thermic characteristics of the layers of the...
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The purpose of the paper was to examine the effects of classroom physical environment on the academic achievement scores of secondary school students. All the students studying at secondary school level in Kohat Division, Pakistan constituted the population of the study. The study was delimited to the students of class 09 of Govt. High School Khurram (Karak). Forty students from class 09 of the same school were selected as sample through simple random sampling technique. The study was...
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Adaptive comfort standards (ACS) have been gaining acceptance worldwide including in international comfort standards. The current work does not try to provide further evidence that ACS works but instead tries to put forth the most suitable ACS for the tropical climatic regions of India. We compare the comfort temperatures predicted by some standard ACS with the comfort temperatures found from field studies done in tropical climatic regions of India. We find that an ACS developed for the hot...
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