Jose M. Saavedra, Juan Manuel Barrios. Sketch based Image Retrieval using Learned KeyShapes (LKS). In Xianghua Xie, Mark W. Jones, Gary K. L. Tam, editors, Proceedings of the British Machine Vision Conference 2015, BMVC 2015, Swansea, UK, September 7-10, 2015. BMVA Press, 2015. [doi]