This paper describes ImageCLEFlifelog 2019, the third edition of the Lifelog task. In this edition, the task was composed of two
subtasks (challenges): the Lifelog Moments Retrieval (LMRT) challenge
that followed the same format as in the previous edition, and the Solve
My Life Puzzle (Puzzle), a brand new task that focused on rearranging
lifelog moments in temporal order. ImageCLEFlifelog 2019 received noticeably higher submissions than the previous editions, with ten teams
participating resulting in a total number of 109 runs.