Search Results for "perspective"

...Zhou Zhihua's "Machine Learning" Watermelon Book as the pre-knowledge, so the best way to use the Pumpkin Book is to use the Watermelon Book as the main line. Please refer to it when you encounter a formula that you cannot derive or cannot understand. We strive to explain and derive each formula from the perspective of undergraduate mathematics. Therefore, we usually give out the mathematics knowledge of the super program in the form of appendices and references. Interested students can Continue to learn in depth along the information we gave. For beginners who are new to machine learning, the formulas in Chapter 1 and Chapter 2 of Watermelon Book are strongly not recommended to go deep . ...

...It supports a wide range of augmentation techniques, allows to easily combine these and to execute them in random order or on multiple CPU cores, has a simple yet powerful stochastic interface and can not only augment images but also key points/landmarks, bounding boxes, heatmaps and segmentation maps. Affine transformations, perspective transformations, contrast changes, gaussian noise, dropout of regions, hue/saturation changes, cropping/padding, blurring, etc. Rotate image and segmentation map on it by the same value sampled. Convert keypoints to distance maps, extract pixels within bounding boxes from images, clip polygon to the image plane, etc. Scale segmentation maps, average/max pool of images/maps, pad images to aspect ratios (e.g. to square them). ...

Diff-zoo is a learning-focused handbook designed to demystify algorithmic differentiation (AD), the core technique powering modern machine learning frameworks. The project introduces AD from a foundational calculus perspective and gradually builds towards toy implementations that resemble systems like PyTorch and TensorFlow. It clarifies the differences and connections between forward mode, reverse mode, symbolic, numeric, tracing, and source transformation approaches to differentiation. Unlike production-grade AD systems that are often obscured by complex implementation details, these examples are deliberately simple and coherent to highlight the fundamental ideas. ...