Nguyen, D.T., Le, V.P., To, T.T., Truong, Q.B. and Nguyen, H.D. 2026. Reconstruction of optimal weld seam trajectory for three axis robot using deep learning and quadratic regression approaches. CTU Journal of Innovation and Sustainable Development. 18, 2 (Jul. 2026), 130-142. DOI:https://doi.org/10.22144/ctujoisd.2026.030.