9 Anomaly Detection9.1 Density Estimation9.1.1 Problem MotivationAnomaly detection (Density estimation) is a common application of machine learning and is mainly used for unsupervised learning, but in some ways it is similar to supervised learning.The most common application of anomaly
"Furnace-Refining AI" machine learning 046-image edge detection method(Python libraries and version numbers used in this article: Python 3.6, Numpy 1.14, Scikit-learn 0.19, matplotlib 2.2)Image in the detection of various shapes in the field of computer vision is one of the most common technology, especially in the ima
does not introduce a matrix, which is easy to calculate and can be correctly executed if there are few samples. The multi-element model is complex to calculate after the matrix is introduced. to calculate the inverse of the matrix, the model must be executed when the sample value is greater than the feature value.
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Although exception detection i
learning.In fact, these two states are not completely divided, for example, if we are trading in a lot of fraud, then we study the problem from anomaly detection to supervise learning.Exercise: Intuitive judgment of two situationsChoosingwhat Features to useThe previous approach is to assume that the data satisfies the Gaussian distribution, and also mentions that if the distribution is not Gaussian distribution, the above method can be used, but if
Directory
Machine Vision defect Detection-Learn to do-camera select camera schematic and basic structure camera basic parameters determine field of view and pixel determine pixel depth camera type maximum frame rate line frequency cell size final selection
Machine Vision defect detection-
. Naive Bayesian classifier has two kinds of polynomial model and Bernoulli model when it is used in text classification, and the algorithm realizes these two models and is used for spam detection respectively, which has remarkable performance.Note: Personally, the "machine learning Combat" naive Bayesian chapter on the text classification algorithm is wrong, whe
IntroductionThe systematic learning machine learning course has benefited me a lot, and I think it is necessary to understand some basic problems, such as the category of machine learning algorithms.Why do you say that? I admit that, as a beginner, may not be in the early st
This column (Machine learning) includes single parameter linear regression, multiple parameter linear regression, Octave Tutorial, Logistic regression, regularization, neural network, machine learning system design, SVM (Support vector machines Support vector machine), clust
This article summarizes some of the strange cc control servers I've seen in my safe work. The design method of the controller server and the corresponding detection method, in each Cc Control service first introduces the Black Hat part is the CC server design method for the different purposes, and then introduces the white hat part is related detection methods , let's have a look at the western set. There's
Machine learning and its application 2013 content introduction BooksComputer BooksMachine learning is a very important area of research in computer science and artificial intelligence. In recent years, machine learning has not only been a great skill in many fields of comput
number D is too large, λ too low, sample size is too small.
This provides the basis for us to improve the machine learning algorithm.
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Design ====== of ======= machine learning system
(i) The design process of the
accelerated, this operation is very common, such as the linear Svm,cos distance, as well as neural network and LR inside the WX and so on, can be used. A relatively easy to think of can be applied to the Multi-model detection framework (such as multi-class object detection, multi-posture face/car detection, etc.); 2, for multi-model
track, Int. conference on Computer Vision and pattern recognitio N, pp. 593-600, 1994 which introduced these features.
"3" the article by K. Mikolajczyk and C. Schmid, Scale and affine invariant interest point detectors, International Journa L of Computer Vision, vol. 1, pp. 63-86, which proposes a multi-scale and affine-invariant Harris operator.
"4" the article by E. Rosten and T. Drummond, Machine Learning
This column (Machine learning) includes single parameter linear regression, multiple parameter linear regression, Octave Tutorial, Logistic regression, regularization, neural network, machine learning system design, SVM (Support vector machines Support vector machine), clust
This column (Machine learning) includes single parameter linear regression, multiple parameter linear regression, Octave Tutorial, Logistic regression, regularization, neural network, machine learning system design, SVM (Support vector machines Support vector machine), clust
Learning notes for "Machine Learning Practice": Implementation of k-Nearest Neighbor algorithms, and "Machine Learning Practice" k-
The main learning and research tasks of the last semester were pattern recognition, signal theor
deep residual network resnet, and then appeared RFCN, and the recent mask-rcnn and so on, the detection effect is getting better and higher precision.
Detection of characteristic +adaboost features of Haar
As the first installment of this series, let's start with a simple, Haar feature +adaboost algorithm. The principle is simple. There are a lot of tutorials on the web, and I'm not going to talk about it
Original: Image classification in 5 Methodshttps://medium.com/towards-data-science/image-classification-in-5-methods-83742aeb3645
Image classification, as the name suggests, is an input image, output to the image content classification of the problem. It is the core of computer vision, which is widely used in practice.
The traditional method of image classification is feature description and detection, such traditional methods may be effective for som
problems existing in the traditional target detection task. For problems with sliding windows, region proposal provides a good solution. Region proposal (candidate area) is a pre-identified position where the target may appear in the diagram. However, because region proposal uses information such as textures, edges, and colors in the image, it is guaranteed to maintain a high recall rate with fewer windows (thousands of or even hundreds of). This gre
What is integrated learning, in a word, heads the top of Zhuge Liang. In the performance of classification, multiple weak classifier combinations become strong classifiers.
In a word, it is assumed that there are some differences between the weak classifiers (such as different algorithms, or different parameters of the same algorithm), which results in different classification decision boundaries, which means that they make different mistakes when ma
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