April 1st, 2025 
Daniela Lopez de Luise Call for Papers
DiversityOne Open Challenge: Exploring Diversity in People’s Everyday Life Behavior with Mobile Data
held at
The ACM International Joint Conference on Pervasive and Ubiquitous Computing (UbiComp)
Espoo, Finland, October 12-16, 2025
Workshop website: https://datascientiafoundation.github.io/diversityone-2025/
The open challenge aims to explore the DiversityOne dataset, one of the larger and most geographically diverse datasets for everyday life behavior modeling. The dataset combines questionnaires about demographic and psychosocial variables from 18K participants, and passive smartphone sensor data and self-reported annotations from 782 students across eight universities in eight countries. The study followed ethical approval procedures in each of the participating institutions and is compliant with the European General Data Protection Regulation (GDPR). This dataset is a rich, flexible and valuable research resource that can be used to answer research questions in multiple fields: machine learning, mobile sensing, computational social science, behavioral recognition, and many others. This challenge offers the opportunity to work on the dataset and gain useful feedback on your research. We welcome contributions from researchers from diverse backgrounds and geographical provenances. In particular, we welcome contributions that address aspects including, but not limited to:
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AI/ubiquitous computing/mobile sensing
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data-centric AI
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interactive machine learning
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noisy annotation detection and correction
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domain adaptation
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transfer learning
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activity and mood recognition
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responsible and ethical AI
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Computational social science
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network analysis of social systems
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sequence analysis of diary data
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analysis of communities of practices
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machine learning or rule-based analysis of social behavior
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Designing with data
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studies focusing on the design and documentation of the dataset collection
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studies focusing on the design affordances of the dataset
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data-centric design
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user-centered design
Why join?
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Explore a rich, large-scale dataset for research
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Receive feedback for your work from an expert program committee
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A selection of the accepted papers will be invited to submit an extended version to IEEE Pervasive Computing.
Important dates
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From March 28, 2025: Submit your research proposal and request the datasets. The full list of available datasets and documentation is accessible on the data catalog. More details are on the workshop website.
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June 8, 2025: Abstract deadline.
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June 15, 2025: Submission deadline
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June 29, 2025: Author notification
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July 30, 2025: Deadline for camera-ready version of workshop papers to be included in the ACM DL
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October 12 or 13, 2015: Full-day Workshop.
Important links
Workshop website: https://datascientiafoundation.github.io/diversityone-2025/
Dataset paper https://dl.acm.org/doi/10.1145/3712289
Data catalog https://datascientiafoundation.github.io/LivePeople-ws/datasets/
Dataset webpage https://datascientia.eu/projects/diversityone/
Paper submission
Short paper (max 4 pages, excluding references). The paper should report the motivation, methodology, results, future analyses and an ethical statement highlighting potential societal impacts. The submitted works should reflect on, analyze, or test the DiversityOne dataset.
Additional info:
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Conference webpage UbiComp / ISWC 2025 https://www.ubicomp.org/ubicomp-iswc-2025/
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For any questions, please do not hesitate to contact us at datadistribution.knowdive@unitn.it
- Andrea Bontempelli (University of Trento)
- Matteo Busso (University of Trento)
- Lakmal Meegahapola (ETH Zurich)
- Amalia de Götzen (Aalborg University)
- Fausto Giunchiglia (University of Trento)
- Daniel Gatica-Perez (Idiap Research Institute & EPFL)
