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Related papers: TRACE: Temporal Reasoning over Context and Evidenc…

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Contextual reasoning with constraints is crucial for enhancing temporal consistency in cross-frame modeling for visual tracking. However, mainstream tracking algorithms typically associate context by merely stacking historical information…

Computer Vision and Pattern Recognition · Computer Science 2025-08-21 Fansheng Zeng , Bineng Zhong , Haiying Xia , Yufei Tan , Xiantao Hu , Liangtao Shi , Shuxiang Song

Context-aware Human Activity Recognition (CHAR) is challenging due to the need to recognize the user's current activity from signals that vary significantly with contextual factors such as phone placements and the varied styles with which…

Machine Learning · Computer Science 2024-09-27 Wen Ge , Guanyi Mou , Emmanuel O. Agu , Kyumin Lee

Developing human activity recognition (HAR) systems for smart homes is not straightforward due to varied layouts of the homes and their personalized settings, as well as idiosyncratic behaviors of residents. As such, off-the-shelf HAR…

Machine Learning · Computer Science 2024-06-21 Shruthi K. Hiremath , Thomas Ploetz

Generally, Human Activity Recognition (HAR) consists of monitoring and analyzing the behavior of one or more persons in order to deduce their activity. In a smart home context, the HAR consists of monitoring daily activities of the…

Human-Computer Interaction · Computer Science 2021-12-22 Damien Bouchabou , Christophe Lohr , Ioannis Kanellos , Sao Mai Nguyen

Reminder systems commonly rely on fixed schedules, location triggers, or simple rules, limiting their ability to leverage the rich sensing capabilities of modern smart homes. A key challenge lies in enabling users to specify context-aware…

Human-Computer Interaction · Computer Science 2026-05-25 Reina Szeyi Chan , Sujendra Jayant Gharat , Maya Lampi , Yueran Jia , Avi K Srinivasan , Xiang Zhi Tan

We present TRACE, a novel system for live *common ground* tracking in situated collaborative tasks. With a focus on fast, real-time performance, TRACE tracks the speech, actions, gestures, and visual attention of participants, uses these…

Feature extraction is crucial for human activity recognition (HAR) using body-worn movement sensors. Recently, learned representations have been used successfully, offering promising alternatives to manually engineered features. Our work…

Machine Learning · Computer Science 2020-12-11 Harish Haresamudram , Irfan Essa , Thomas Ploetz

Reasoning models improve their problem-solving ability through inference-time scaling, allocating more compute via longer token budgets. Identifying which reasoning traces are likely to succeed remains a key opportunity: reliably predicting…

Artificial Intelligence · Computer Science 2025-10-14 Martina G. Vilas , Safoora Yousefi , Besmira Nushi , Eric Horvitz , Vidhisha Balachandran

Modern machine learning models excel at detecting individual actions, objects, or scene attributes from short, local observations. However, many real-world tasks, such as in smart cities and healthcare, require reasoning over complex events…

Machine Learning · Computer Science 2025-06-18 Liying Han , Gaofeng Dong , Xiaomin Ouyang , Lance Kaplan , Federico Cerutti , Mani Srivastava

Most studies on machine learning in sensing systems focus on low-level perception tasks that process raw sensory data within a short time window. However, many practical applications, such as human routine modeling and occupancy tracking,…

Artificial Intelligence · Computer Science 2024-04-01 Xiaomin Ouyang , Mani Srivastava

Reasoning about actions and change (RAC) is essential to understand and interact with the ever-changing environment. Previous AI research has shown the importance of fundamental and indispensable knowledge of actions, i.e., preconditions…

Computation and Language · Computer Science 2022-11-28 Weinan He , Canming Huang , Zhanhao Xiao , Yongmei Liu

Sensor-based human activity recognition (HAR), i.e., the ability to discover human daily activity patterns from wearable or embedded sensors, is a key enabler for many real-world applications in smart homes, personal healthcare, and urban…

Signal Processing · Electrical Eng. & Systems 2021-04-20 Saurav Jha , Martin Schiemer , Franco Zambonelli , Juan Ye

In the many years since the inception of wearable sensor-based Human Activity Recognition (HAR), a wide variety of methods have been introduced and evaluated for their ability to recognize activities. Substantial gains have been made since…

Signal Processing · Electrical Eng. & Systems 2025-01-06 Harish Haresamudram , Chi Ian Tang , Sungho Suh , Paul Lukowicz , Thomas Ploetz

In the context of social well-being and context awareness several eHealth applications have been focused on tracking activities, such as sleep or specific fitness habits, with the purpose of promoting physical well-being with increasing…

Networking and Internet Architecture · Computer Science 2019-06-20 Rute C. Sofia , Saeik Firdose , Luis A. Lopes , Waldir Moreira , Paulo Mendes

We propose a novel activity learning framework based on Edge Cloud architecture for the purpose of recognizing and predicting human activities. Although activity recognition has been vastly studied by many researchers, the temporal features…

Artificial Intelligence · Computer Science 2020-05-15 Bing Huang , Athman Bouguettaya , Hai Dong

We present a Temporal Rule-Anchored Chain-of-Evidence (TRACE) on knowledge graphs for interpretable stock movement prediction that unifies symbolic relational priors, dynamic graph exploration, and LLM-guided decision making in a single…

Computational Engineering, Finance, and Science · Computer Science 2026-03-16 Qianggang Ding , Haochen Shi , Luis Castejón Lozano , Miguel Conner , Juan Abia , Luis Gallego-Ledesma , Joshua Fellowes , Gerard Conangla Planes , Adam Elwood , Bang Liu

Learning to compute, the ability to model the functional behavior of a circuit graph, is a fundamental challenge for graph representation learning. Yet, the dominant paradigm is architecturally mismatched for this task. This flawed…

Artificial Intelligence · Computer Science 2026-02-10 Ziyang Zheng , Jiaying Zhu , Jingyi Zhou , Qiang Xu

Monitoring and analyzing process traces is a critical task for modern companies and organizations. In scenarios where there is a gap between trace events and reference business activities, this entails an interpretation problem, amounting…

Artificial Intelligence · Computer Science 2026-05-26 Bettina Fazzinga , Sergio Flesca , Filippo Furfaro , Luigi Pontieri , Francesco Scala

Human Activity Recognition (HAR) is one of the central problems in fields such as healthcare, elderly care, and security at home. However, traditional HAR approaches face challenges including data scarcity, difficulties in model…

Computer Vision and Pattern Recognition · Computer Science 2024-07-16 Xi Chen , Julien Cumin , Fano Ramparany , Dominique Vaufreydaz

Recent advances in Internet of Things (IoT) technologies and the reduction in the cost of sensors have encouraged the development of smart environments, such as smart homes. Smart homes can offer home assistance services to improve the…

Human-Computer Interaction · Computer Science 2021-11-09 Damien Bouchabou , Sao Mai Nguyen , Christophe Lohr , Benoit Leduc , Ioannis Kanellos