Zhang Changqing, Adeli Ehsan, Wu Zhengwang, Li Gang, Lin Weili, Shen Dinggang
Department of Radiology and BRIC, University of North Carolina at Chapel Hill, North Carolina, USA.
School of Computer Science and Technology, Tianjin University, Tianjin, China.
Proc IEEE Int Symp Biomed Imaging. 2018 Apr;2018:1048-1051. doi: 10.1109/ISBI.2018.8363751. Epub 2018 May 24.
The early postnatal period witnesses rapid and dynamic brain development. Understanding the cognitive development patterns can help identify various disorders at early ages of life and is essential for the health and well-being of children. This inspires us to investigate the relation between cognitive ability and the cerebral cortex by exploiting brain images in a longitudinal study. Specifically, we aim to predict the infant brain development status based on the morphological features of the cerebral cortex. For this goal, we introduce a learning approach to dexterously explore complementary information from different time points and handle the missing data simultaneously. Specifically, we establish a novel model termed as . The approach regards data of different time points as different views, and constructs a latent representation to capture the complementary underlying information from different and even incomplete time points. It uncovers the latent representation that can be jointly used to learn the prediction model. This formulation elegantly explores the complementarity, effectively reduces the redundancy of different views, and improves the accuracy of prediction. The minimization problem is solved by the Alternating Direction Method of Multipliers (ADMM). Experimental results on real data validate the proposed method.
出生后的早期阶段,大脑会经历快速且动态的发育。了解认知发展模式有助于在生命早期识别各种疾病,对儿童的健康和幸福至关重要。这激发我们在一项纵向研究中,通过利用脑图像来探究认知能力与大脑皮层之间的关系。具体而言,我们旨在基于大脑皮层的形态特征预测婴儿大脑发育状况。为实现这一目标,我们引入一种学习方法,巧妙地从不同时间点探索互补信息,并同时处理缺失数据。具体来说,我们建立了一个名为 的新型模型。该方法将不同时间点的数据视为不同视角,并构建一个潜在表示,以从不同甚至不完整的时间点捕获互补的潜在信息。它揭示了可共同用于学习预测模型的潜在表示。这种公式化巧妙地探索了互补性,有效减少了不同视角的冗余,并提高了预测准确性。最小化问题通过交替方向乘子法(ADMM)解决。真实数据的实验结果验证了所提出的方法。