@article {107, title = {A Data-Driven Linear Approximation of HVAC Utilization for Predictive Control and Optimization}, journal = {IEEE Transactions on Control Systems Technology}, volume = {99}, year = {2014}, pages = {1}, doi = {10.1109/TCST.2014.2332873}, url = {http://dx.doi.org/10.1109/TCST.2014.2332873}, author = {Xiao Qin and Susan Lysecky and Jonathan Sprinkle} }