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In this paper, a novel variable selection method for neural network that can be applied to describe nonlinear industrial processes is developed. The proposed method is an iterative two-step approach. First, a multilayer perceptron is constructed. Second, the least absolute shrinkage and selection operator is introduced to select the input variables that are truly essential to the model with the shrinkage...
The main purpose of academic testing is to improve learning. The computer-based test (CBT) and online test (OLT) have been important trends in e-learning. Many online test systems randomly generate test papers from an item bank. A high-quality test must to consider the following questions. Is the depth and breadth of test items appropriate? Can test items examine student ability at different cogitative...
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