Research funded by NFS grant 1527828, mainly focused on making construction machines more intelligent and collaborative so that they don't require significant skills and training (due to human labor shortage) to operate. Proposed the following methods to address such challenges: (1) learning a task from demonstration, (2) predicting human operator intent, (3) sharing control authority between human and autonomy, (4) adjusting the learned task model . Below is a brief visual illustration of the concepts, framework, hardware and software systems, and some experimental results. For details, see 2021@Jin , 2022@Jin , and 2021-2@Jin .