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Many risk factors affect software development and risk management has become one of the major activities in software development. Discovering causal directions among risk factors and project performance are important support for risk management. The Additive Noise Model (ANM) is an effective algorithm for discovering the direction on one-to-one causalities, but ineffective on many-to-one causalities...
The online solution of optimization (including minimization and maximization) is viewed as a basic and important issue, which has been widely arisen in scientific researches and engineering applications. In this paper, a new recurrent neural network (NRNN) is generalized and investigated for the nonlinear optimization problem. In addition, two gradient neural networks are employed for comparison....
In China stock market, more than 95% are non-professional investors. Due to the lack of professional skill and the complexity of financial indicators and the varying investment environment, non-professional investors are in great need of a data mining-based intelligent stock trading decision-support system. Considering the existence of concept drift phenomenon, this study proposes an adaptive learning...
In the field-work, the study on safety assessment of oil & gas drilling troop management is limited. Aiming at the characteristics of oil & gas drilling troop management, this paper uses the Fuzzy-AHP and Fuzzy comprehensive judgment method to set up the safety management assessment model of oil & gas drilling troop. Select a drilling troop of Changqing petroleum bureau, the...
In this paper, we study the finite-time leader-following consensus problems for multi-agent systems. By using the finite-time stability theory and adding a suitable nonlinear protocol, we prove that the multi-agent system can reach the leader-following consensus in finite time in the networks with undirected topologies. The effects of control parameters on consensus time are also analyzed. Furthermore,...
The objective of the study is to establish a model between the impedance characteristics and the sugar content of internal quality index of melons. The equivalent series resistor and equivalent series capacitor of melon are measured over the frequency from 1 KHz to 100 KHz by a LCR meter and an airtight shielding case. Then the impedance is calculated. Through principal component analysis (PCA), four...
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