machine learning nanodegree

PremiseThis series of articles is not intended to be used to study the derivation of mathematical formulae, but to quickly implement the idea of machine learning in code. The main thing is to comb your thoughts.Perception MachineThe perception machine is to accept the data transmitted by each sensory element (neuron), which will produce corresponding behavior whe

Tags: introduction baidu machine led to the OSI day split data setI. Introduction TO MACHINE learning Defined 　　The machine learning definition given by Tom Mitchell: For a class of task T and performance Metric p, if the computer program is self-perfecting wit

　　Statement: This blog post according to Http://www.ctocio.com/hotnews/15919.html collation, the original author Zhang Meng, respect for the original.Machine learning is undoubtedly a hot topic in the field of current data analysis. Many people use machine learning algorithms more or less in their usual work. This article summarizes common

decision trees (decision tree) 4 　　Cited examplesThe existing training set is as follows, please train a decision tree model to predict the future watermelon's merits and demerits.Back to Catalog What are decision trees (decision tree) 5 　　Cited examplesThe existing training set is as follows, please train a decision tree model to predict the future watermelon's merits and demerits.Back to Catalog What are decision trees (decision tree) 6

Liblinear instead of LIBSVM 2.Liblinear use, Java version Http://www.cnblogs.com/tec-vegetables/p/4046437.html 3.Liblinear use, official translation. http://blog.csdn.net/zouxy09/article/details/10947323/ http://blog.csdn.net/zouxy09/article/details/10947411 4. Here is an article, write good. Transferred from: http://blog.chinaunix.net/uid-20761674-id-4840097.html For the past more than 10 years, support vector machines (SVM machines) have been the most influential algorithms in

assumptions tend to be 0, but the actual labels are 1, both of which indicate a miscarriage of judgment. Otherwise, we define the error value as 0, at which point the value is assumed to correctly classify the sample Y.Then, we can use the error rate errors to define the test error, that is, 1/mtest times the error rate errors of H (i) (xtest) and Y (i) (sum from I=1 to Mtest).Stanford University public Class machine

of older generations of objects and the size of each region. Handlepromotionfailure Whether to allow the guarantee to allocate memory failure, that is, the whole old generation of space is not enough, and the entire Cenozoic in the Eden and Survivor objects are the extreme conditions of survival. Parallelgcthreads The number of threads that are memory-reclaimed when parallel GC is set. Gctimeration Parallel Scavenge collector run time as

0. Training Data set: Iris DataSet (Iris DataSet), get URL Https://archive.ics.uci.edu/ml/machine-learning-databases/iris/iris.dataAs shown, the first four columns of each row of data in the IRIS data set are the petal length/width, the calyx length/width, and the iris in three categories: Setosa,versicolor,virginicaYou can save the dataset with the following example code and display the last 5 rows1 Import

This is according to the (Shanghaitech University) Wang Hao's teaching of the finishing.Required pre-Knowledge: score, higher garbage, statistics, optimizationMachine learning: (Tom M. Mitchell) "A computer program was said to learn from experience E with respect to some CL The performance of the tasks T and measure p if its performance at the tasks in T, as measured by P, IM proves with experience E ".? What is experience:historical data? How to lear

This article is reproduced from: http://www.csdn.net/article/2015-10-01/2825840 Absrtact: Deep learning based on Hadoop is an innovative method of deep learning. The deep learning based on Hadoop can not only achieve the effect of the dedicated cluster, but also has a unique advantage in enhancing the Hadoop cluster, distributed depth

corresponds to different C, while the longitudinal axes represent different gamma.The above diagram shows the use of cross-validation method we choose the least error of the model parameter, we can only select a few different C and γ, compare which parameter combination of the form is better.Relationship between SVM and support vectors with a cross-validation errorOne of the interesting relationships in SVM is that the error of leaving a cross-validation is less than or equal to the scale of th

This semester has been to follow up on the Coursera Machina learning public class, the teacher Andrew Ng is one of the founders of Coursera, machine learning aspects of Daniel. This course is a choice for those who want to understand and master machine learning. This course

the WTW:The essence is similar.Another understanding: If we consider the constraints in SVM as a filtering algorithm, for a number of points in a plane,It is possible that some margin non-conforming methods will be ignored, so this is actually a reduction of the problem of the VC dimension, which is also an optimization direction of the problem.With the condition of M > 1.126, better generalization performance was obtained compared to PLA.Taking a circle midpoint as an example, some partitionin

Because there is a very detailed online blog, so this section will not write their own, write can not write others so good and thorough.jerrylead Support Vector Machine series:Support Vector Machine (i): http://www.cnblogs.com/jerrylead/archive/2011/03/13/1982639.htmlSupport Vector Machine (ii): http://www.cnblogs.com/jerrylead/archive/2011/03/13/1982684.htmlSupp

(Digits.data, - Digits.target, intest_size=0.25, -Random_state=33) to + " " - 3 recognition of digital images using support vector machine classification model the " " * #standardize training data and test data $SS =Standardscaler ()Panax NotoginsengX_train =ss.fit_transform (X_train) -X_test =ss.fit_transform (x_test) the + #Support Vector machine classifier for initializing linear hypothesis ALsvc =lin

() function is used to convert the 32x32 binary image to the 1x1024 vector and the loadimages () function to load the image.Four Test results and methodsThe number of support vectors, the error rate of training set and the error rate of test set are tested with the testdigits () function.After 4 iterations are obtained:Five Kernel functionThe kernel function is the core algorithm of SMV, and for a sample that is linearly non-divided, the original input space can be linearly divided into a new k

Machine Learning is to study how computers simulate or implement human learning behaviors to acquire new knowledge or skills and reorganize existing knowledge structures to continuously improve their own performance. It is the core of artificial intelligence and the fundamental way to make computers intelligent. It is applied in various fields of artificial intel

1, Xiao Wei's practice road Http://blog.csdn.net/xiaowei_cqu 2, Morning Chenyusi far (Shi Yuhua Beihang University) Http://blog.csdn.net/chenyusiyuan 3, Rachel Zhang (Zhang Ruiqing) 's blog Http://blog.csdn.net/abcjennifer 4. ZOUXY09 (Shaoyi) http://blog.csdn.net/zouxy09 (deep learning, image segmentation, Kinect development Learning, compression sensing) 5, Love CVPR HTTP://BLOG.CSDN.NET/ICVPR 6, focus on