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The DINA model is one of the most widely used models in cognitive and skills diagnosis, and several algorithms have been developed for estimating the model parameters. However, since the parameter space is very large and has a mix of binary variables, even medium-sized testing is extremely challenging. To make the model practical, a fast optimization algorithm for parameter estimation is needed. In...
The panchromatic and multispectral (PMS) sensor is a high spatial resolution sensor aboard the GF-1 satellite launched on April 26, 2013. This paper focuses on the cross-calibration of the PMS sensor using Terra/Moderate-Resolution Imaging Spectroradiometer (MODIS) and Landsat 8/Operational Land Imager (OLI). Two matched-image adjustment factors (MIAFs) are used in the cross-calibration which are...
Cognitive diagnosis models (CDMs) are of growing interest in test development and in the measurement of human performance. The DINA (deterministic input, noisy, and gate) model has been widely used in cognitive diagnosis tests and in the process of test development. Central to many such models, the well-known Q-matrix [1], which specifies the item-attribute relationships and two noise parameters in...
This study incorporates proactive flexibility and reactive flexibility into the framework of strategic flexibility, and subdivides environmental uncertainty into environmental change rate and environmental change unpredictability. Based on the incorporation and subdivision, it explores the effect of proactive and reactive strategic flexibility on the performance of enterprises and the moderating effect...
Members of agricultural supply chain pay too much attention to self-interest rather than common benefits, which collides with the target of the whole supply chain and results in inefficiency and the slow circulation of agricultural products. Therefore, evaluating and improving the performance of supply chain cooperation effectively is significant for scholars. Based on the construction of valuation...
This paper rather focuses on analyzing the impact of different network tie strengths on exploratory and exploitative innovation success. The case of Haitian Group is employed to explore and explain the relative propositions. Our key claim is that the benefits of each type of firm tie not only vary across each other but will be moderated by market uncertainty such that certain types of ties will matter...
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