Classification and logistic regression (classification and logistic regression)Http://www.cnblogs.com/czdbest/p/5768467.htmlGeneralized linear model (generalized Linear Models)Http://www.cnblogs.com/czdbest/p/5769326.htmlGenerate Learning Algorithm (generative learning algorithms)Http://www.cnblogs.com/czdbest/p/577150
Supervised Learning issues:
1. Linear regression Model:
Applies to the independent variable x and the dependent variable y for The linear relationship 2, the generalized linear model:
One area change in the input space affects all other areas, as follows: dividing the input space into several regions and then fitt
In the linear regression problem, we assume that in the classification problem, we assume that they are all examples of generalized linear models, and the generalized linear model is the estimation of the
linear regression is based on the hypothesis of Gaussian distribution, and the Logistic regression is based on the hypothesis of Bernoulli distribution. If linear regression and Logistic regression cannot be understood from the perspective of probability, it is impossible to understand generalized linear regression by
So far, we've talked about the regression and classification examples, in the regression example:In the classification example:As you can see, μ and Φ are defined as functions of x and θ.As we'll see in this article, these two models are actually just a special case of a broad model family, generalized linear models. W
We begin to contact linear equations from junior middle school, and linearity is the simplest relationship between variables, so I intend to start with the linear model to introduce the basic algorithm of machine learning. Generalized linear model (General Linear MODEL,GLM)
dependent variable distribution, connection function and other combinations, can get a variety of different generalized linear models.It is important to note that although generalized linear models do not require dependent variables to be normally distributed, they are requ
Both logistic regression and linear regression are one of the generalized linear models, and then let's explain why this is the case.1. Exponential family distributionExponential family distribution and exponential distribution are not the same, in the probability of statistical distribution can be expressed in the exp
Author: Snow Mountain Elephant
Link: https://www.zhihu.com/question/27938684/answer/38730824
Source: Know
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The right to talk about their own understanding.
First of all, the main problem is wrong, GLM generally refers to the generalized linear model, t
Reprint Please specify source: http://www.cnblogs.com/BYRans/The previous article has introduced a regression and an example of a classification. In the logistic regression model we assume that:In the classification problem we assume that:They are all examples of generalized linear models that need to understand the exponential distribution family before understa
GLM Generalized linear model
George Box said: "All models is wrong, some is useful" 1. Starting with the Linear Model
As a foundation of GLM, this section review the classic Linear Regression, and expounds some basic terms.The basic formula for our
The Linear Prediction of independent variables in the classic linear model is the estimated value of the dependent variable. Generalized Linear Model: The linear prediction function of independent variables is the estimated value of the dependent variable. Common
doing linear regression, we are concerned about the mean and the standard deviation does not affect the model of learning and parameter θ choice, so here σ set to 1 easy to calculate)2. Three assumptions that form a generalized linear model
P (y | x;θ) ∼exponentialfamily (η). The conditional probability distribution of output variable based on input var
Generalized linear models extend the framework of a linear model, which contains the analysis of non-normal dependent variablesGeneralized linear model fitting form:$ $g (\MU_\LAMBDA) = \beta_0 + \sum_{j=1}^m\beta_jx_j$$$g (\MU_\LAMBDA) is the connection function $. Assuming
The Linear regression model and the logistic regression model have been reviewed recently, but some of these questions are puzzling, knowing that I see a generalized linear model that is generalized Linear Model before it dawned on the original
returnWhen the classification problem is no longer two yuan but K yuan, that is, y∈{1,2,..., k}. We can solve this classification problem by constructing the generalized linear model. The following steps are described.Suppose y obeys exponential family distribution, φi = P (y = i;φ) and known. So. We also define.Also 1{} The condition for the representation in parentheses is the true value of the entire eq
series, which is not mentioned here. See also: http://www.cnblogs.com/tbcaaa8/p/4486297.html3. Generalized linear modelThe generalized linear model is based on the following three-point hypothesis:Suppose that a y (i) |x (i) is independent of each other and satisfies the distribution of the same exponential distributi
> Translation Summary by Joey Joseph Matthews
Reference Ng's lecture note1 part3In this paper, we will first introduce the exponential family distribution, then introduce the generalized linear models (generalized linear model, GLM), and finally explain why logistic regre
This article corresponds to "R language Combat" the 13th chapter: Generalized linear modelThe generalized linear model expands the framework of the linear model and includes the analysis of the non-normal dependent variables.Two popular
The following is a set of methods for regression in which the target value is a linear combination of input variables. Used as a predictive value.Through the module, we specify the vector as coef_ (coefficient), which is intercept_ (intercept).To implement classification using generalized linear models, see logistic re
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