Volume 9 Number 4 (Aug. 2019)

Volume 9 Number 4 (Aug. 2019)

Article Number	Article Title & Authors	Pages
706	EWA-GBDT: A Novel Air Quality Prediction Model Combining Exponentially Weighted Averages and Gradient Boosting Decision Tree Jibing Gong, Dan Wang, Da Chen, and Shuli Wang	177
707	Parametric Uncertainty Quantification Using Polynomial Chaos Expansions Applied to a Wet Friction Clutch Model Georges Tod, Wannes De Groote, Tom Lefebvre, Nele De Geeter, Bruno Depraetere, and Guillaume Crevecoeur	185
708	Enhanced Performance of Developed Two-Step (Hybrid/PMU) Linear State Estimator Model Shaymaa M. Khamis and Nabil H. Abbasy	192
709	Semantic and Logic Modeling of Disaster Simulation for Multi-agent Systems Claire Prudhomme, Christophe Cruz, and Frank Boochs	198
710	A Competency Model for Traditional Chinese Medicine Practitioners: A Cross-Sectional Study in China Yilin Chen	205
711	Rank-Based Whale Optimization Algorithm for Solving Parameter Optimization of Solar Cells Jeng-Shyang Pan, Jenn-Long Liu, and En-Jui Liu	209
712	Research on Equipment Importance Evaluation for Bat-tlefield Maintenance Hanqiang Deng, Jianguo Hao, Liang Gong, and Jiangtao Kong	216
713	Hybrid Moth-Flame and Salp Swarm Optimization Algorithm Orachun Udomkasemsub, Khajonpong Akkarajitsakul, and Tiranee Achalakul	223
714	Enhancing Simulation-Driven Optimization by Machine-Learning Yoel Tenne	230
715	Optimal Customized Bundle Pricing Ameera Ibrahim	234