Ghodrati, AmirhosseinBlagojevic, RachelGuesgen, Hans W.Marsland, StephenPlimmer, BerylAydın, Tunç and Sýkora, Daniel2018-11-102018-11-102018978-1-4503-5892-72079-8679https://doi.org/10.1145/3229147.3229160https://diglib.eg.org:443/handle/10.1145/3229147-3229160An early phase of sketched diagram recognition systems consists of grouping digital ink into possible shapes. This survey presents the key literature on automatic grouping techniques in sketch recognition. In addition, we identify the major challenges in grouping ink into identifiable shapes, discuss the common solutions to these challenges based on current research, and highlight areas for future work.10.1145/3229147.3229160