This paper presents a subsampling-task paradigm for data-driven task-specific experiment design (ED) and a novel method in populationwide supervised feature selection (FS). Optimal ED, the choice of sampling points under constraints of limited acquisition-time, arises in a wide variety of scientific and engineering contexts. However the continuous optimization used in classical approaches depend on a-priori parameter choices and challenging non-convex optimization landscapes. This paper proposes to replace this strategy with a subsampling-task paradigm, analogous to populationwide supervised FS. In particular, we introduce JOFSTO, which performs JOint Feature Selection and Task Optimization. JOFSTO jointly optimizes two coupled networks: one for feature scoring, which provides the ED, the other for execution of a downstream task or process. Unlike most FS problems, e.g. selecting protein expressions for classification, ED problems typically select from highly correlated globally informative candidates rather than seeking a small number of highly informative features among many uninformative features. JOFSTO's construction efficiently identifies potentially correlated, but effective subsets and returns a trained task network. We demonstrate the approach using parameter estimation and mapping problems in clinically-relevant applications in quantitative MRI and in hyperspectral imaging. Results from simulations and empirical data show the subsampling-task paradigm strongly outperforms classical ED, and within our paradigm, JOFSTO outperforms state-of-the-art supervised FS techniques. JOFSTO extends immediately to wider image-based ED problems and other scenarios where the design must be specified globally across large numbers of acquisitions. Code will be released.

农业是人类社会的支柱，因为它对每个生物体都是必需的。就人类而言，帕迪种植非常重要，主要是亚洲大陆，这是主食食品之一。然而，农业中的植物疾病导致生产力枯竭。植物疾病通常是由害虫，昆虫和病原体引起的，如果在特定时间内不受控制，它们的生产力将大规模降低至大规模。最终，人们看不到稻田产量的增加。准确，及时识别植物疾病可以帮助农民减轻由于害虫和疾病而导致的损失。最近，深度学习技术已被用来识别稻田疾病并克服这些问题。本文基于模型实现了卷积神经网络（CNN），并测试了由636个红外图像样本组成的公共数据集，其中有五个帕迪病类别和一个健康的类别。拟议的模型熟练地识别和分类的五种不同类型的帕迪疾病，准确度为88.28％