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Photo by Bagus Hernawan on Unsplash在 MobileNetV2 中，作者使用了倒置殘差結構，其中快速連接位於狹窄的瓶頸層之間。他們採用輕量級深度卷積來過濾非線性源的特徵。同時，他們發現去除窄層中的非線性以保持表徵能力是非常重要的，並證明了這一改進可以提高性能。Depthwise Separable ConvolutionsLinear Bottlenecks簡單來說，Linear Bottlenecks 就是指在 MobileNetV1 最後做完 1x1 convolution 將激活函數 ReLU 拿掉，而為什麽這麼做，可以下方的 manifold of interest 介紹。manifold of interest在神經網絡中，每一層都會對輸入數據進行一些操作，比如卷積、激活、池化等等。這些操作產生的輸出值就被稱為該層的激活值。對於一個真實圖像的輸入集，每個層的激活值都形成了一個集合。我們可以把每個集合看作是一個流形（manifold）。這些流形反映了圖像的特徵，比如邊緣、紋理、形狀等等。長期以來，人們一直認為神經網絡中感興趣的流形可以嵌入到低維子空間中。MobileNetV1 成功利用，通過寬度乘數參數在計算和精度之間進行有效權衡。 按照這種直覺，寬度乘法器方法允許減少激活空間的維數，直到感興趣的流形跨越整個空間。然而，當我們回憶起深度卷積神經網絡實際上具有非線性的坐標變換（例如 ReLU）時，這種直覺就會失效。Examples of ReLU transformations of low-dimensional manifolds embedded in higher-dimensional spaces一開始在 2 維空間上建立一個 manifold of interest ，接下來會通過隨機矩陣 T 映射到 n 維空間後（manifold of interest 嵌入到更高維度的空間），接著進行 ReLU，最後再使用 T 的逆矩陣映射回原本的空間，也就是論文中所代表的圖。source在低（2、3）維度進行 ReLU 後，再映射回來原本的空間，可以發現原本螺旋的 manifold of interest 它被折疊了，並且其他部分訊息已經消失，反之可以發現在高（15、30）維度進行 ReLU 後，再映射回來原本的空間，雖然螺旋的 manifold of...
Data is the foundation for machine learning (ML) algorithms. One of the most common formats for storing large amounts of data is Apache Parquet due to its compact and highly efficient format. This means that business analysts who want to extract insights from the large volumes of data in their...Read more
Artificial intelligence has emerged as a powerful technology that can drive substantial transformations in businesses across diverse industries. However, traditional machine learning models have struggled to keep pace with the dynamic nature of our rapidly evolving world, hindering their effectiveness in handling the influx of data generated by the Internet...Read more
While the current AI boom is only just getting started, an early winner is Nvidia, who – on Tuesday, May 30th – saw the company’s market capitalization exceed US$1 trillion for the first time. For a chip designer with no fabrication capabilities of its own, this is a significant moment....Read more
2.1 Problem 🎯In the application of Physics-Informed Neural Networks (PINNs), it comes as no surprise that the neural network hyperparameters, such as network depth, width, the choice of activation function, etc, all have significant impacts on the PINNs’ efficiency and accuracy.Naturally, people would resort to AutoML (more specifically, neural architecture...Read more
All you need to know about getting started with ML.The rise of AI has been largely driven by one tool in AI called Machine Learning. It is the science of getting computers to learn and act like humans do, and improve their learning over time in an autonomous fashion, by...Read more
Emerging technologies such as artificial intelligence and machine learning have transformed the traditional finance function by making processes efficient, improving accuracy, and enabling data-driven decision-making. According to a Forrester survey, 98% of financial institutions believe that AI and ML can give them an edge and improve how they do business....Read more
The Amazon SageMaker Python SDK is an open-source library for training and deploying machine learning (ML) models on Amazon SageMaker. Enterprise customers in tightly controlled industries such as healthcare and finance set up security guardrails to ensure their data is encrypted and traffic doesn’t traverse the internet. To ensure the...Read more
This blog post was originally published at Qualcomm’s website. It is reprinted here with the permission of Qualcomm. How Qualcomm AI Research is optimizing hardware-specific compilers and chip design with AI Combinatorial problems are all around us. When we are faced with many choices and we need to find an...Read more
The below is a summary of my article on Open Data as published on TheDigitalSpeaker.com Open data, a concept rapidly gaining importance in our increasingly data-driven world, refers to freely accessible and usable data by anyone without restrictions, be it copyrights, patents, or other control mechanisms. This data can come...Read more
Theoretical Concepts & ToolsData Validation: Data validation refers to the process of ensuring data quality and integrity. What do I mean by that?As you automatically gather data from different sources (in our case, an API), you need a way to continually validate that the data you just extracted follows a...Read more