regression:学习输入、输出或 x 到 y 的映射,以预测数字 classification: 预测类别(可能输出的有限小集合,既可以是数字,也可以是非数字) 2.2 unsupervised learning -从未标明的数据中发现有趣的东西 data only comes with input x , but not output y, the algorithm has to find structure in the data cluste...
Logistic regression, also known as logit regression or the logit model, is a type ofsupervised learningalgorithm used forclassificationtasks, especially for predicting the probability of a binary outcome (i.e., two possible classes). It is based on the statistical methods of the same name, which...
Optimal fitting is usually guaranteed Most machine learning models use gradient descent to fit models, which involves tuning the gradient descent algorithm and provides no guarantee that an optimal solution will be found. By contrast, linear regression that uses the sum of squares as a cost function...
换句话说,我们试图将输入变量映射到离散的类别中。 In supervised learning, we are given a data set and already know what our correct output should look like, having the idea that there is a relationship between the input and the output. Supervised learning problems are categorized into "regression...
What is Regression?: Regression is a statistical technique used to analyze the data by maintaining a relation between the dependent and independent variables.
1)监督学习(supervised learning) 监督学习,即在机械学习过程中提供对错指示。一般实在是数据组中包含最终结果(0,1)。通过算法让机器自我减少误差。这一类学习主要应用于分类和预测 (regression & classify)。监督学习从给定的训练数据集中学习出一个函数,当新的数据到来时,可以根据这个函数预测结果。监督学习的训练集...
Machine Learning FAQ Softmax Regression (synonyms: Multinomial Logistic, Maximum Entropy Classifier, or just Multi-class Logistic Regression) is a generalization of logistic regression that we can use for multi-class classification (under the assumption that the classes are mutually exclusive). In ...
Linear regression: Linear regression algorithms take data points and build a mathematical equation for a line that best supports predicted outcomes. This is sometimes known as the “line of best fit.” Linear regression works by tweaking variables in the equation to minimize the errors in prediction...
In machine learning, neural networks are used to analyze and recognize patterns in data. They can be trained on labeled datasets to perform tasks such as classification, regression, or clustering. By adjusting the weights and biases of the connections between neurons, neural networks learn to gener...
Linear regression: Linear regression algorithms take data points and build a mathematical equation for a line that best supports predicted outcomes. This is sometimes known as the “line of best fit.” Linear regression works by tweaking variables in the equation to minimize the errors in prediction...