Synthetic Chebfun Football Dataset

该数据集是一个类似足球图案的二元分类合成数据集，用于演示新开发出的分类器。该数据集是通过函数 f(𝐱) = 2 sinh(5 x1 ⋅ x2 ⋅ x3) 创建的，并根据输出值进行特定的类别分配。其规模包括5000个训练和验证样本，以及25000个保留的测试样本，任务类型为二元分类。

This is a synthetic binary classification dataset with a soccer ball-like pattern, designed for demonstrating newly developed classifiers. This dataset is constructed using the function $f(oldsymbol{x}) = 2 sinh(5x_1 cdot x_2 cdot x_3)$, with specific class assignments determined by the function's output values. It includes 5,000 training and validation samples, as well as 25,000 held-out test samples, and the task is binary classification.