RI:Small: Modeling and Relating Visual Tasks

在海量视觉数据集上训练的深度网络正被用于越来越多的应用，如自动驾驶、机器人、制造、电子商务以及科学和工程学科。然而，探索新问题的解决方案的巨大空间可能会很困难，因为它需要大量的计算资源。迫切需要工具来提高对一个任务的解决方案推广到新任务的程度的理解，以及分享设计这些解决方案所需的专业知识的方法。这个项目旨在通过开发一个框架来应对这些挑战，以对广泛的视觉领域的识别任务进行建模、关联和可视化。这样做将使从业者能够识别用于跨任务应用的密切相关的数据集，并选择深入的网络架构进行预培训。该项目将审查该框架的实际应用，并审查检测和适应机器学习模型长期部署中发生的统计变化的方法。具体地说，该项目将着眼于生态和土木工程领域问题的有效解决方案。该项目的教育影响包括通过与该项目相关的研究活动对研究生和本科生进行教学、指导，以及通过该大学的早期研究学者计划在计算机方面指导未被充分代表的本科生。该项目旨在创建一个表示各种视觉识别任务及其关系的一般框架。具体地说，研究团队将开发：1)通过评估用于求解任务的深层网络参数的重要性来将任务嵌入到欧几里得和双曲向量空间(创建“任务嵌入”)的理论框架；2)针对包含数百万甚至数十亿个参数的网络计算任务嵌入的有效方法；3)在标签可获得性有限时利用未标记数据来增强任务嵌入的技术；4)针对密集视觉预测任务(例如对象检测和图像分割)计算任务嵌入的技术；5)应用任务嵌入来解决元任务，例如数据集选择、多任务处理和检测任务转移；6)由广泛使用的计算机视觉数据集表示的任务之间对称和非对称关系的可视化。该奖项反映了NSF的法定使命，并通过使用基金会的智力优势和更广泛的影响审查标准进行评估，被认为值得支持。

Deep networks trained on massive visual datasets are being used in an increasing number of applications in fields such as autonomous driving, robotics, manufacturing, e-commerce, and science and engineering disciplines. However, exploring the vast space of solutions for a new problem can be difficult as it demands significant computational resources. There is a pressing need for tools that improve understanding of the extent to which solutions from one task generalize to new tasks, along with methods for sharing the expertise needed to design these solutions. This project aims to tackle these challenges by developing a framework to model, relate, and visualize recognition tasks across a broad range of visual domains. Doing so will enable practitioners to identify closely related datasets for application across tasks and to select deep network architectures for pre-training. The project will examine practical applications of the framework and examine methods for detecting and adapting to statistical shifts that take place in long-term deployment of machine-learning models. Specifically, the project will look at efficient solutions for problems in Ecology and Civil Engineering domains. The educational impact of the project includes teaching, mentoring graduate and undergraduate students through research activities associated with the project, and mentoring underrepresented undergraduates in computing through the University's Early Research Scholars Program.This project aims to create a general framework for representing a variety of visual recognition tasks and their relationships. Specifically, the research team will develop: 1) A theoretical framework to embed tasks into Euclidean and hyperbolic vector spaces (creating “task embeddings”) by evaluating the importance of the parameters of deep networks employed to solve them; 2) Efficient methods for computing task embeddings for networks containing millions, or even billions, of parameters; 3) Techniques to leverage unlabeled data to enhance task embeddings when label availability is limited; 4) Techniques to compute task embeddings for dense visual prediction tasks such as object detection and image segmentation; 5) The application of task embeddings to address meta-tasks such as dataset selection, multi-tasking, and detecting task shifts; 6) Visualization of symmetric and asymmetric relationships between tasks represented by widely used computer vision datasets.This award reflects NSF's statutory mission and has been deemed worthy of support through evaluation using the Foundation's intellectual merit and broader impacts review criteria.