Important Dates

NTCIR-Lifelog is a core task of the NTCIR-18 conference. This core task aims to advance the state-of-the-art research in lifelog analytics and retrieval as an application of information retrieval. This NTCIR lifelog task is one of two international lifelog-related challenges, the other being the annual ACM Lifelog Search Challenge.

At NTCIR-18, the lifelog task consists of three distinct sub-tasks.

  • LSAT - Lifelog Semantic Access sub-task is a known-item search task that can be undertaken in a non-interactive (automatic) manner. In this sub task, an text, visual or text-visual query is given, the participants have to retrieve a number of specific moments based on the query in a lifelogger's life. We define moments as semantic events, or activities that happened throughout the day. The task can best be compared to a known-item search task. All previous editions of the NTCIR-Lifelog task have included an LSAT task.
  • LIT - Lifelog Insight sub-task is to explore knowledge mining and visualisation of lifelogs by setting general challenges for the participants to address. Speficially this year we are focusing on the detection of a set of activities of daily living from the 18-month dataset.
  • LQAT: Lifelog Question Answer sub-task is to encourage comparative progress on the important Q&A topic from lifelogs. For this subtask, an augmented 85-day lifelog collection with over 15,000 multiple-choice questions and baseline will be provided, participants can train and compare their lifelog QA models.


Related Links:

Recommended Reading:
  • The following are a list of publications related to the NTCIR-Lifelog Benchmarking Activity
  • [1] Experiments in Lifelog Organisation and Retrieval at NTCIR. Cathal Gurrin, Hideo Joho, Frank Hopfgartner, Liting Zhou, Rami Albatal, Graham Healy, Duc-Tien Dang Nguyen. Evaluating Information Retrieval and Access Tasks. 2020. Springer.
  • [2] Comparing Approaches to Interactive Lifelog Search at the Lifelog Search Challenge (LSC2018). Cathal Gurrin, Klaus Schoeffmann, Hideo Joho, Andreas Leibetseder, Liting Zhou, Aaron Duane, Duc-Tien Dang-Nguyen, Michael Riegler, Luca Piras, Minh-Triet Tran, Jakub Loko─Ź, Wolfgang Hürst. ITE Transactions on Media Technology and Applications. 7.2 (2019)
Paper Submission:
  • Full details of the paper submission process and the templates to use will be made available in early 2025. Please note that the deadlines for the Lifelog task are separate from the default NTICR deadlines. Please note also that the paper limit is 8 pages.
  • When referring to the NTCIR18-Lifelog6 task, please cite the following publication. Please note that these details are likely to be updated closer to the actual publication date. We will circulate a draft version of this paper once all runs are received and processed. At the moment, you can assume that the paper will describe the challenge and sub-task, the dataset and compare the different submitted runs.