Tag:probability

  • Probabilistic linear regression with uncertain weights

    Time:2021-5-13

    By Ruben winastwanCompile VKSource: towards Data Science When you study data science and machine learning, linear regression may be the first statistical method you come across. I guess it’s not the first time you’ve used linear regression. Therefore, in this paper, I want to discuss probabilistic linear regression rather than typical / deterministic linear regression. […]

  • Examples of multiple comparisons in R language: Bonferroni correction method and Benjamin & Hochberg method

    Time:2021-5-5

    Link to the original text:http://tecdat.cn/?p=21825 = The basic principle of hypothesis testing is the principle of small probability, that is, we think that small probability events can not happen in a test. = The problem of multiple comparisons When multiple hypothesis tests are carried out under the same research problem, it is no longer in […]

  • Cache elimination algorithm

    Time:2021-5-1

    Implementation of cache elimination strategyIn essence, there is no difference between good and bad caching algorithm, only whether it is suitable for the current business scenario. Therefore, setting different cache algorithms according to different business scenarios will make the cache hit rate higher. 1、 FIFO FIFO(First   in   First   Out) first in first […]

  • Markov transformation arma-garch model estimation of MCMC based on MATLAB

    Time:2021-4-15

    Link to the original text:http://tecdat.cn/?p=4241 _ State transition_ Models, especially_ Markov transformation_ (MS) model is considered to be a good method to identify the nonlinearity of time series. The method of estimating nonlinear time series is to combine MS model with arma-garch model, but it brings difficulties to the calculation of parameter estimation. We establish […]

  • Leetcode 837. New 21 | Python

    Time:2021-4-8

    837. New 21 Title Source: leetcode https://leetcode-cn.com/problems/new-21-game subject Alice participates in a game based on the blackjack rule, which is described as follows: Alice starts with 0 and draws numbers when her score is less than k. When extracting, she randomly gets an integer from the range of [1, w] as a fraction to accumulate, […]

  • R-language hidden Markov model HMM recognition of changing stock market conditions

    Time:2021-3-25

    Link to the original text:http://tecdat.cn/?p=3784 Understanding how different market conditions affect your strategic performance can have a huge impact on your earnings. Some strategies perform well in volatile markets, while others need a strong and stable trend, otherwise they will face a long-term downside risk. Figuring out when to start or stop trading strategies, adjusting […]

  • How to solve the problem of naive Bayesian classification

    Time:2021-3-22

    Public number: manong charging station Pro Home page:https://codeshellme.github.io Bayes principle is a British mathematicianThomas BayesIt was proposed in the 18th century that when we can’t directly calculate the possibility of the occurrence of a thing (a), we can indirectly calculate the possibility of the occurrence of the things (x, y, z) related to this thing, […]

  • Naive Bayes classification theory how to solve classification problem by probability

    Time:2021-3-21

    Public number: manong charging station Pro Home page:https://codeshellme.github.io Bayes principle is a British mathematicianThomas BayesIt was proposed in the 18th century that when we can’t directly calculate the possibility of the occurrence of a thing (a), we can indirectly calculate the possibility of the occurrence of the things (x, y, z) related to this thing, […]

  • The mathematical basis of AI: from the perspective of probability and God

    Time:2021-3-19

    brief introduction It’s going to rain and my mother is going to get married. Although we can’t control the direction of the future, we can predict the possibility of the future to some extent. And this possibility is called probability. What is probability? Probability is the probability of things happening. For example, when we throw […]

  • Vue nine palace lottery

    Time:2021-3-7

    Suddenly want to write a thing about the lottery, draw lessons from the realization of other bigwigs. Make a probability type of lottery, CSS and data are fooling. I don’t want to optimize. Ha ha ha ha <template> <div class=”home_page”> <!– <headerPage />–> <content-page> < div > lottery test <div class=”choujiang”> <ul class=”ul”> <li v-for=”(item,i) […]

  • Introduction to NLP (1): n-gram language model.

    Time:2021-2-14

    The article comes from the official account: machine learning alchemy. N-gram language model N-gram is a language model, which is a probability model. The input of this model is a sentence, and the output is a probability. If given in I love deep learningl love ( ) learningThen the probability of filling deep in the […]

  • What is the OC curve?

    Time:2021-2-13

    Today, let’s talk about the OC curve, which is used to reflect the relationship between the probability of a batch of products being received and the unqualified rate of the batch of products. The curve is as follows: The horizontal axis is the overall defective rate (unqualified rate) of the batch, and the vertical axis […]