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TrajGPT: Irregular Time-Series Representation Learning for Health Trajectory Analysis

TrajGPT: Irregular Time-Series Representation Learning for Health Trajectory Analysis

In many domains, such as healthcare, time-series data is often irregularly sampled with varying intervals between observations. This poses challenges for classical time-series models that require equally spaced data. To address this, we propose a novel time-series Transformer called Trajectory Generative Pre-trained Transformer (TrajGPT). TrajGPT employs a novel Selective Recurrent …