yolo machine learning

sentence The main task of pattern recognition is to design a classifier that is invariant to these transformations, with the following three techniques: Structural invariance: The design of the structure has taken into account the insensitivity to the transformation, and the disadvantage is that the number of network connections becomes large Training invariance: Different sample training parameters for the same target; disadvantage: It is not guaranteed that the tr

. Optimal interval classifierThe optimal interval classifier can be regarded as the predecessor of the support vector machine, and is a learning algorithm, which chooses the specific W and b to maximize the geometrical interval. The optimal classification interval is an optimization problem such as the following:That is, select Γ,w,b to maximize gamma, while satisfying the condition: the maximum geometry in

TensorFlow learning --- getting started (1) ----- MNIST machine learning, References: http://www.tensorfly.cn/tfdoc/tutorials/mnist_beginners.html Data: http://wiki.jikexueyuan.com/project/tensorflow-zh/tutorials/mnist_download.html Environment: windows + Python3.5 + tensorflow Python code From tensorflow. examples. tutorials. mnist import input_data # load train

statistical tests for each feature:false positive rate SELECTFPR, false discovery rate selectfdr, or family wise error selectfwe. The document says that if you use a sparse matrix, only the CHI2 indicator is available, and everything else must be transformed into the dense matrix. But I actually found that f_classif can also be used in sparse matrices.Recursive Feature elimination: Looping feature selectionInstead of examining the value of a variable individually, it aggregates it together for

17.1 Study of large data sets17.2 Random Gradient descent method17.3 Miniature Batch gradient descent17.4 Stochastic gradient descent convergence17.5 Online Learning17.6 mapping Simplification and data parallelism 17.1 Study of large data sets 17.2 Stochastic gradient descent method 17.3miniature Batch gradient descent 17.4 stochastic gradient descent convergence 17.5 Online learning 17.6 mapping simplification and data parallelism Ng Lesson 17th: M

After tossing the crawler and some interesting content, I recently in the R language for simple machine learning knowledge, the main reference is "machine learning-Practical Case Analysis" this book.This book is a rare, purely r language-based machine

Machine learning Algorithms Study NotesGochesong@ Cedar CedroMicrosoft MVPThis series is the learning note for Andrew Ng at Stanford's machine learning course CS 229.Machine learning Al

converge or even diverge. .One thing worth noting:As we approach the local minimum, the guide values will automatically become smaller, so the gradient drop will automatically take a smaller amplitude, which is the practice of gradient descent. So there's actually no need to reduce the alpha in addition, we need a fixed (constant) learning rate α. 4. Gradient Descent linear regression (Gradient descent for Linear Regression) This is the method of us

: Random initialization Loop until convergence { Each State transfer count in the sample is used to update and R Use the estimated parameters to update V (using the value iteration method of the previous section) According to the updated V to re-draw } In step (b) We are going to do a value update, which is also a loop iteration, in the previous section we solved v by initializing v t

(Preface)I wrote a machine learning ticket yesterday. Let's write one today. This book is mainly used for beginners and is very basic. It is suitable for sophomores and juniors. Of course, it is also applicable if you have not read machine learning before your senior or senior. Mac