Researcher Portfolio

Yang Dazhi (Dr)
Research Scientist
Planning and Operations Management
Introduction:Dazhi Yang received his B.Eng., M.Sc. and Ph.D. degrees from the National University of Singapore in 2009, 2012 and 2015 respectively. He is current a research fellow with the Singapore Institute of Manufacturing Technology. His research interests include forecasting and spatio–temporal statistics.
Research Interest:Text Mining, Forecasting
BioNotes:Ph.D. in Electrical and Computer Engineering, National University of Singapore, 2015
M.Sc. in Electrical and Computer Engineering, National University of Singapore, 2012
B.Eng. in Electrical and Computer Engineering, National University of Singapore, 2009
Publications:
  1. Dazhi Yang. 2015. Simulation study of parameter estimation and measurement planning on photovoltaics degradation. International Journal of Energy and Statistics, to appear.
  2. Aloysius W. Aryaputera, Dazhi Yang, Lu Zhao and Wilfred M. Walsh. 2015. Very short-term irradiance forecasting at unobserved locations using spatio-temporal kriging. Solar Energy, to appear, (Impact factor: 3.469).
  3. Dazhi Yang and Nan Chen. 2015. Expanding existing solar irradiance monitoring network using entropy. Sustainable Energy, IEEE Transactions on, to appear, (Impact factor: 3.656). doi: http://dx.doi.org/10.1109/TSTE.2015.2421734.
  4. Aloysius W. Aryaputera, Dazhi Yang and Wilfred M. Walsh. 2015. Day-ahead solar irradiance forecasting in a tropical environment. Journal of Solar Energy Engineering. 137(5), (Impact factor: 1.132). doi: http://dx.doi.org/10.1115/1.4030231.
  5. Zibo Dong, Dazhi Yang, Thomas Reindl and Wilfred M. Walsh. 2015. A novel hybrid approach based on self-organizing maps, support vector regression and particle swarm optimization to forecast solar irradiance. Energy, 82(0):570–577, (Impact factor: 4.159). doi: http://dx.doi.org/10.1016/j.energy.2015.01.066.
  6. Dazhi Yang, Zhen Ye, Lihong Idris Lim and Zibo Dong. 2015. Very short term irradiance forecasting using the lasso. Solar Energy, 114(0):314–326, (Impact factor: 3.541). doi:http://dx.doi.org/10.1016/j.solener.2015.01.016.
  7. Lihong Idris Lim, Zhen Ye, Jiaying Ye, Dazhi Yang and Hui Du. 2015. A linear identification of diode models from single I–V characteristics of PV panels. Industrial Electronics, IEEE Transactions on, 62(7):4181–4193, (Impact factor: 6.498). doi: http://dx.doi.org/10.1109/TIE.2015.2390193.
  8. Dazhi Yang, Vishal Sharma, Zhen Ye, Lihong Idris Lim, Lu Zhao and Aloysius W. Aryaputera. 2015. Forecasting of global horizontal irradiance by exponential smoothing, using decompositions. Energy, 81(0):111–119, (Impact factor: 4.159). doi: http://dx.doi.org/10.1016/j.energy.2014.11.082.
  9. Dazhi Yang and Thomas Reindl. 2015. Optimal solar irradiance sampling design using the variance quadtree algorithm. Renewables: Wind, Water, and Solar, 2(1):1–8. doi:http://dx.doi.org/10.1186/s40807-014-0001-x.
  10. Lihong Idris Lim, Zhen Ye, Jiaying Ye, Dazhi Yang and Hui Du. 2015. A linear method to extract diode model parameters of solar panels from a single I–V curve. Renewable Energy, 76(0):135–142, (Impact factor: 3.361). doi: http://dx.doi.org/10.1016/j.renene.2014.11.018.
  11. Dazhi Yang, Zhen Ye, André M. Nobre, Hui Du, Wilfred M. Walsh, Lihong Idris Lim and Thomas Reindl. 2014. Bidirectional irradiance transposition based on the Perez model. Solar Energy, 110(0):768–780, (Impact factor: 3.541). doi: http://dx.doi.org/10.1016/j.solener.2014.10.006.
  12. Haohui Liu, André Nobre, Dazhi Yang, Jiaying Ye, Fernando R. Martins, Richardo Rüther, Thomas Reindl, Armin G. Aberle and Ian Marius Peters. 2014. The impact of haze on performance ratio and short–circuit current of PV systems in Singapore, Photovoltaics, IEEE Journal of, 4(6):1585–1592, (Impact factor: 3.0). doi: http://dx.doi.org/10.1109/JPHOTOV.2014.2346429.
  13. Chaojun Gu, Dazhi Yang, Panida Jirutitijaroen, Wilfred M. Walsh and Thomas Reindl. 2014. Spatial load forecasting with communication failure using time–forward kriging, Power Systems, IEEE Transactions on, 29(6):2875–2882, (Impact factor:3.53). doi: http://dx.doi.org/10.1109/TPWRS.2014.2308537.
  14. Dazhi Yang, Wilfred M. Walsh and Panida Jirutitijaroen. 2014. Estimation and applications of clear sky global horizontal irradiance at the Equator. Journal of Solar Energy Engineering. 136(3), (Impact factor: 1.132). doi: http://dx.doi.org/10.1115/1.4027263.
  15. Dazhi Yang, Zibo Dong, Thomas Reindl, Panida Jirutitijaroen and Wilfred M. Walsh. 2014. Solar irradiance forecasting using spatio–temporal empirical kriging and vector autoregressive models with parameter shrinkage. Solar Energy, 103(0):550–562, (Impact factor: 3.541). doi:http://dx.doi.org/10.1016/j.solener.2014.01.024.
  16. Yong Sheng Khoo, André Nobre, Raghav Malhotra, Dazhi Yang, Richardo Rüther, Thomas Reindl and Armin Aberle. 2014. Optimal orientation and tilt angle for maximizing in–plane solar irradiance for PV applications in Singapore. Photovoltaics, IEEE Journal of, 4(2):647–653, (Impact factor: 3.0). doi:http://dx.doi.org/10.1109/JPHOTOV.2013.2292743.
  17. Zibo Dong, Dazhi Yang, Thomas Reindl and Wilfred M. Walsh. 2014. Satellite image analysis and a hybrid ESSS/ANN model to forecast solar irradiance in the tropics. Energy Conversion and Management, 79(0):66–73, (Impact factor: 3.59). doi: http://dx.doi.org/10.1016/j.enconman.2013.11.043.
  18. Dazhi Yang, Zibo Dong, André Nobre, Yong Sheng Khoo, Panida Jirutitijaroen and Wilfred M. Walsh. 2013. Evaluation of transposition and decomposition models for converting global solar irradiance from tilted surface to horizontal in tropical regions. Solar Energy, 97(0):369–387, (Impact factor: 3.541). doi:http://dx.doi.org/10.1016/j.solener.2013.08.033.
  19. Dazhi Yang, Chaojun Gu, Zibo Dong, Panida Jirutitijaroen, Nan Chen and Wilfred M. Walsh. 2013. Solar irradiance forecasting using spatial–temporal covariance structures and time–forward kriging. Renewable Energy, 60(0):235–245, (Impact factor: 3.361). doi: http://dx.doi.org/10.1016/j.renene.2013.05.030.
  20. Zibo Dong, Dazhi Yang, Thomas Reindl and Wilfred M. Walsh. 2013. Short–term solar irradiance forecasting using exponential smoothing state space model. Energy, 55(0):1104–1113, (Impact factor: 4.159). doi: http://dx.doi.org/10.1016/j.energy.2013.04.027.
  21. Dazhi Yang, Panida Jirutitijaroen and Wilfred M. Walsh. 2012. Hourly solar irradiance time series forecasting using cloud cover index. Solar Energy, 86(12):3531–3543, (Impact factor: 3.541). doi:http://dx.doi.org/10.1016/j.solener.2012.07.029.