All Stories

  1. Editors' Introduction to the Issue, June 2026

    Article • Proceedings of the ACM on Interactive Mobile Wearable and Ubiquitous Technologies, June 2026, ACM (Association for Computing Machinery)

    Thomas Ploetz

  2. Foundation Models Defining A New Era In Sensor-based Human Activity Recognition: A Survey And Outlook

    Article • Proceedings of the ACM on Interactive Mobile Wearable and Ubiquitous Technologies, June 2026, ACM (Association for Computing Machinery)

    Thomas Ploetz, Sizhen Bian

  3. Editors' Introduction to the Issue, March 2026

    Article • Proceedings of the ACM on Interactive Mobile Wearable and Ubiquitous Technologies, March 2026, ACM (Association for Computing Machinery)

    Thomas Ploetz

  4. Generative AI and Foundation Models for Human Sensing (GenAI4HS)

    Article • October 2025, ACM (Association for Computing Machinery)

    Thomas Ploetz, Chi Ian Tang

  5. VISAR: Visualization and Interpretation of Sensor-based Activity Recognition for Smart Homes

    Article • October 2025, ACM (Association for Computing Machinery)

    Thomas Ploetz, Alexander Karpekov

  6. Thou Shalt Not Prompt: Zero-Shot Human Activity Recognition in Smart Homes via Language Modeling of Sensor Data & Activities

    Article • October 2025, ACM (Association for Computing Machinery)

    Thomas Ploetz

  7. Characterising Topic Familiarity and Query Specificity Using Eye-Tracking Data

    Article • July 2025, ACM (Association for Computing Machinery)

    Thomas Ploetz, Damiano Spina

  8. Past, Present, and Future of Sensor-based Human Activity Recognition Using Wearables: A Surveying Tutorial on a Still Challenging Task

    Article • Proceedings of the ACM on Interactive Mobile Wearable and Ubiquitous Technologies, June 2025, ACM (Association for Computing Machinery)

    Chi Ian Tang, Thomas Ploetz

  9. Transfer Learning in Sensor-Based Human Activity Recognition: A Survey

    Article • ACM Computing Surveys, March 2025, ACM (Association for Computing Machinery)

    Thomas Ploetz

  10. Layout-Agnostic Human Activity Recognition in Smart Homes through Textual Descriptions Of Sensor Triggers (TDOST)

    Article • Proceedings of the ACM on Interactive Mobile Wearable and Ubiquitous Technologies, March 2025, ACM (Association for Computing Machinery)

    Thomas Ploetz

  11. Cross-Domain HAR: Few Shot Transfer Learning for Human Activity Recognition

    Article • ACM Transactions on Intelligent Systems and Technology, November 2024, ACM (Association for Computing Machinery)

    Thomas Ploetz

  12. Game of LLMs: Discovering Structural Constructs in Activities using Large Language Models

    Article • October 2024, ACM (Association for Computing Machinery)

    Thomas Ploetz

  13. Solving the Sensor-Based Activity Recognition Problem (SOAR): Self-Supervised, Multi-Modal Recognition of Activities from Wearable Sensors

    Article • October 2024, ACM (Association for Computing Machinery)

    Dr. Sungho Suh, Thomas Ploetz, Chi Ian Tang

  14. More Data for People with Disabilities! Comparing Data Collection Efforts for Wheelchair Transportation Mode Detection

    Article • October 2024, ACM (Association for Computing Machinery)

    Thomas Ploetz

  15. Emotion Recognition on the Go: Utilizing Wearable IMUs for Personalized Emotion Recognition

    Article • October 2024, ACM (Association for Computing Machinery)

    Thomas Ploetz

  16. Sensor event sequence prediction for proactive smart home: A GPT2-based autoregressive language model approach

    Article • Journal of Ambient Intelligence and Smart Environments, September 2024, IOS Press

    Thomas Ploetz

  17. IMUGPT 2.0: Language-Based Cross Modality Transfer for Sensor-Based Human Activity Recognition

    Article • Proceedings of the ACM on Interactive Mobile Wearable and Ubiquitous Technologies, August 2024, ACM (Association for Computing Machinery)

    Thomas Ploetz

  18. FingerSpeller: Typing with smart rings using the American Sign Language Alphabet

    Article • October 2023, ACM (Association for Computing Machinery)

    Thomas Ploetz, David Martin

  19. Generating Virtual IMU Data using Generative AI

    Article • October 2023, ACM (Association for Computing Machinery)

    Thomas Ploetz, Zikang Leng

  20. Challenges in Using Skin Conductance Responses for Assessments of Information Worker Productivity

    Article • October 2023, ACM (Association for Computing Machinery)

    Thomas Ploetz

  21. How Much Unlabeled Data is Really Needed for Effective Self-Supervised Human Activity Recognition?

    Article • October 2023, ACM (Association for Computing Machinery)

    Thomas Ploetz

  22. Measuring the subtlety of activities from videos for the evaluation of synthetic IMU data

    Article • October 2023, ACM (Association for Computing Machinery)

    Yash Jain, Thomas Ploetz, Zikang Leng

  23. Solving the Sensor-based Activity Recognition Problem (SOAR): Self-supervised, Multi-modal Recognition of Activities from Wearable Sensors

    Article • October 2023, ACM (Association for Computing Machinery)

    Dr. Sungho Suh, Thomas Ploetz, Chi Ian Tang

  24. ConvBoost

    Article • Proceedings of the ACM on Interactive Mobile Wearable and Ubiquitous Technologies, June 2023, ACM (Association for Computing Machinery)

    Thomas Ploetz

  25. Explainable Activity Recognition for Smart Home Systems

    Article • ACM Transactions on Interactive Intelligent Systems, March 2023, ACM (Association for Computing Machinery)

    Thomas Ploetz

  26. Food, Mood, Context: Examining College Students’ Eating Context and Mental Well-being

    Article • ACM Transactions on Computing for Healthcare, October 2022, ACM (Association for Computing Machinery)

    Thomas Ploetz

  27. Clustering of Human Activities from Wearables by Adopting Nearest Neighbors

    Article • September 2022, ACM (Association for Computing Machinery)

    Thomas Ploetz

  28. Reinforcement Learning Based Online Active Learning for Human Activity Recognition

    Article • September 2022, ACM (Association for Computing Machinery)

    Thomas Ploetz

  29. A Personalized Approach for Developing a Snacking Detection System using Earbuds in a Semi-Naturalistic Setting

    Article • September 2022, ACM (Association for Computing Machinery)

    Thomas Ploetz

  30. On the Effectiveness of Virtual IMU Data for Eating Detection with Wrist Sensors

    Article • September 2022, ACM (Association for Computing Machinery)

    Yash Jain, Thomas Ploetz

  31. Assessing the State of Self-Supervised Human Activity Recognition Using Wearables

    Article • Proceedings of the ACM on Interactive Mobile Wearable and Ubiquitous Technologies, September 2022, ACM (Association for Computing Machinery)

    Thomas Ploetz

  32. Bootstrapping Human Activity Recognition Systems for Smart Homes from Scratch

    Article • Proceedings of the ACM on Interactive Mobile Wearable and Ubiquitous Technologies, September 2022, ACM (Association for Computing Machinery)

    Thomas Ploetz

  33. Ubi-SleepNet

    Article • Proceedings of the ACM on Interactive Mobile Wearable and Ubiquitous Technologies, December 2021, ACM (Association for Computing Machinery)

    Bing Zhai, Thomas Ploetz

  34. On the Role of Context Length for Feature Extraction and Sequence Modeling in Human Activity Recognition

    Article • September 2021, ACM (Association for Computing Machinery)

    Thomas Ploetz

  35. Approaching the Real-World

    Article • Proceedings of the ACM on Interactive Mobile Wearable and Ubiquitous Technologies, September 2021, ACM (Association for Computing Machinery)

    Hyeokhyen Kwon, Thomas Ploetz

  36. Applying Machine Learning for Sensor Data Analysis in Interactive Systems

    Article • ACM Computing Surveys, July 2021, ACM (Association for Computing Machinery)

    Thomas Ploetz

  37. Contrastive Predictive Coding for Human Activity Recognition

    Article • Proceedings of the ACM on Interactive Mobile Wearable and Ubiquitous Technologies, June 2021, ACM (Association for Computing Machinery)

    Thomas Ploetz

  38. Generalized and Efficient Skill Assessment from IMU Data with Applications in Gymnastics and Medical Training

    Article • ACM Transactions on Computing for Healthcare, January 2021, ACM (Association for Computing Machinery)

    Thomas Ploetz

  39. Deriving Effective Human Activity Recognition Systems through Objective Task Complexity Assessment

    Article • Proceedings of the ACM on Interactive Mobile Wearable and Ubiquitous Technologies, December 2020, ACM (Association for Computing Machinery)

    Thomas Ploetz

  40. IMUTube

    Article • Proceedings of the ACM on Interactive Mobile Wearable and Ubiquitous Technologies, September 2020, ACM (Association for Computing Machinery)

    Hyeokhyen Kwon, Thomas Ploetz

  41. Masked reconstruction based self-supervision for human activity recognition

    Article • September 2020, ACM (Association for Computing Machinery)

    Thomas Ploetz

  42. Sensing Affect to Empower Students

    Article • August 2020, ACM (Association for Computing Machinery)

    Thomas Ploetz

  43. Multi-target affect detection in the wild

    Article • September 2019, ACM (Association for Computing Machinery)

    Thomas Ploetz

  44. Handling annotation uncertainty in human activity recognition

    Article • September 2019, ACM (Association for Computing Machinery)

    Hyeokhyen Kwon, Thomas Ploetz

  45. On the role of features in human activity recognition

    Article • September 2019, ACM (Association for Computing Machinery)

    Thomas Ploetz

  46. Towards Reliable, Automated General Movement Assessment for Perinatal Stroke Screening in Infants Using Wearable Accelerometers

    Article • Proceedings of the ACM on Interactive Mobile Wearable and Ubiquitous Technologies, March 2019, ACM (Association for Computing Machinery)

    Yang Long, Thomas Ploetz

  47. Assessing the Quality of Home Detection from Mobile Phone Data for Official Statistics

    Article • December 2018, De Gruyter

    Maarten Vanhoof, Thomas Ploetz

  48. On specialized window lengths and detector based human activity recognition

    Article • October 2018, ACM (Association for Computing Machinery)

    Thomas Ploetz

  49. On attention models for human activity recognition

    Article • October 2018, ACM (Association for Computing Machinery)

    Thomas Ploetz

  50. Adding structural characteristics to distribution-based accelerometer representations for activity recognition using wearables

    Article • October 2018, ACM (Association for Computing Machinery)

    Hyeokhyen Kwon, Thomas Ploetz

  51. Seesaw

    Article • October 2018, ACM (Association for Computing Machinery)

    Thomas Ploetz

  52. FingerPing

    Article • April 2018, ACM (Association for Computing Machinery)

    Thomas Ploetz

  53. Comparing Regional Patterns of Individual Movement Using Corrected Mobility Entropy

    Article • Journal of Urban Technology, April 2018, Taylor & Francis

    Maarten Vanhoof, Thomas Ploetz

  54. A Unified Model for User Identification on Multi-Touch Surfaces: A Survey and Meta-Analysis

    Article • ACM Transactions on Computer-Human Interaction, January 2018, ACM (Association for Computing Machinery)

    Thomas Ploetz

  55. Activity Recognition for Quality Assessment of Batting Shots in Cricket using a Hierarchical Representation

    Article • Proceedings of the ACM on Interactive Mobile Wearable and Ubiquitous Technologies, September 2017, ACM (Association for Computing Machinery)

    Thomas Ploetz

  56. Ensembles of Deep LSTM Learners for Activity Recognition using Wearables

    Article • Proceedings of the ACM on Interactive Mobile Wearable and Ubiquitous Technologies, June 2017, ACM (Association for Computing Machinery)

    Thomas Ploetz

  57. Prototyping Ubiquitous Imaging Surfaces

    Article • June 2017, ACM (Association for Computing Machinery)

    Thomas Ploetz