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Chi Ian Tang

3 accepted papers

2025

PRimuS: Pretraining IMU Encoders with Multimodal Self-Supervision

ICASSP 2025accepted

Sensing human motions through Inertial Measurement Units (IMUs) embedded in personal devices has enabled significant applications in health and wellness. Labeled IMU data is scarce, however, unlabeled or weakly labeled IMU data can be used to model human motions. For video or text modalities, the "p…

Cited by 0SourceScholar
2022

Improving Feature Generalizability with Multitask Learning in Class Incremental Learning

ICASSP 2022accepted

Many deep learning applications, like keyword spotting [1], [2], require the incorporation of new concepts (classes) over time, referred to as Class Incremental Learning (CIL). The major challenge in CIL is catastrophic forgetting, i.e., preserving as much of the old knowledge as possible while lear…

Cited by 0SourceScholar
2022

Orchestra: Unsupervised Federated Learning via Globally Consistent Clustering

ICML 2022spotlight

Federated learning is generally used in tasks where labels are readily available (e.g., next word prediction). Relaxing this constraint requires design of unsupervised learning techniques that can support desirable properties for federated training: robustness to statistical/systems heterogeneity, s…