Process Mining for Unstructured Data: Challenges and Research Directions. - Agnes Koschmider; Milda Aleknonyte-Resch; Frederik Fonger; Christian Imenkamp; Arvid Lepsien; Kaan Apaydin; Maximilian Harms; Dominik Janssen; Dominic Langhammer; Tobias Ziolkowski; Yorck Zisgen (CoRR, 2024)