Basic concepts of probability theory two basic laws in probability theory of discrete variables: addition and multiplication, the addition rule defines the direct relation between the random variable x and the condition variable Y. The multiplication rule defines the most important conditional probabilities in probability, which can also be called joint probabilities, because it describes the probability th

Note: This article only records chapter concepts and is used to recall knowledge systems. Reference book "Probability Theory and Mathematical Statistics Fourth Edition".Chapter One basic concept of probability theory random test (with three characteristics) sample space, random event sample space sample point random Event (event) event occurrence basic event inevitable event impossibility event (∅) event re

Graph Theory conclusion, Graph Theory AlgorithmThe connectivity of a graph has a point with a unique degree of 0 in a non-ring graph, which can be reached by any point (because of the absence of a ring, we can start from any point and go forward, must end at a point with an outbound degree of 0.) any point with a non-Inbound degree of 0 in a directed acyclic graph must start from a point with an inbound deg

The translation is not good, please forgive me ...Most of the content comes from wikisDecision theory decision Theory part:Normative and descriptive decision theoryThe theory of normative and descriptive decision-makingNormative or normative decision-making theory is concerned with determining the best decision (in pra

"Isn't it a set? I learned from high school. Look, I don't know you when I add the word "theory! "In our impression, a set has always been the basic language of mathematics, and any branch is defined by a set. However, this situation is only decades ago,Set Theory(Set theory) was born only about one hundred years ago. You may not have imagined that set

This article has referred to "ignorant Zhai" and "hoodlum" teacher wrote the relevant information.
There are two ways to explain the substitution rule (I call it a theory here). One is called "push", and one is called "reverse lookup", which is not contradictory.
I used the "push" theory in the previous post to explain. Because the "reverse lookup" theory to expl

The theory of problem solving is between the model and methodology, and is a very practical method theory. This method was developed in the Soviet Union (the Soviet Union kept confidential for more than 40 years ), it was introduced to the West in the 1980s S (beginning of 1990s) and has been widely studied and applied in the West. in the past 10 years, it has only been spread in China, but the intensity of

acid things. But because the execution of each sub-thing is distributed in the distributed transaction, it is very complicated to implement a distributed thing processing system which can guarantee the acid characteristic.Cap theoryA classic theory of distributed systems. The CAP theory tells us that a distributed system cannot simultaneously meet the three basic requirements of consistency (c:consistency)

Game theory 1 [Bashi Game], Game Theory
First, this is basically a series of articles about ACM game theory.
Today, let's talk about the simplest game-bashgame.
Its game rules are as follows:
There are a pile of n stones, two smart people to play, each person can go to 1 ~ M stones, the last stone wins.
For example, n = 7, m = 3
The procedure is as follows,
Take

I started to learn the encoding theory, but the more I learned it, the more I went into the fire. Why does coding solve the channel error? Redundant, yes, but there is always a lack of quantitative analysis and strict proof, getting dizzy and reluctant to look at the logic of different channel coding.
Then I started to learn from information theory and gradually gained a quantitative understanding of the s

ObjectiveI detail the isolation level of database transactions in two articles, the isolation level for database transactions and transactions and the re-discussion of database transaction isolation levels. This article will start with a distributed transaction, as well as the cap theory and base theory.Distributed transactionsWith the development of distributed computing, transactions have been widely used in the field of distributed computing. In a

Two sons and sons were on their way, and suddenly ran a big black dog from a household, yelling at them. The son was so scared that he quickly hid behind his father. His father told him: "You can rest assured that it won't bite you. Have you ever heard of the phrase "the dog does not bite ?" After hearing this, my son grabbed his father's shirt tightly and said in a trembling voice, "I have heard of this sentence, but I cannot be sure whether the dog has heard of it ."
This conversation is ridi

Python Machine Learning Theory and Practice (5) Support Vector Machine and python Learning Theory
Support vector machine-SVM must be familiar with machine learning, Because SVM has always occupied the role of machine learning before deep learning emerged. His theory is very elegant, and there are also many variant Release versions, such as latent-SVM and structur

properties of acid things. But because the execution of each sub-thing is distributed in the distributed transaction, it is very complicated to implement a distributed thing processing system which can guarantee the acid characteristic.Cap theoryA classic theory of distributed systems. The CAP theory tells us that a distributed system cannot satisfy both consistency (c:consistency), availability (a:availab

From: http://hi.baidu.com/lydrainbowcat/item/f16e64103f8c5c088fbde44c
Poj [number theory/combination/Game Theory] Question list
The original list is relatively watery. Today I changed a difficult list and started to do it again ~
The red color indicates that the AC has passed, and the blue color indicates that the AC has passed. This sentence seems to have an amount in each list in my space.
Game

Graph Theory for sdut3045-(Multi-tree longest chain) and sdut3045 Graph Theory
Fan Zhi Graph Theory
Time Limit: 1000 MS Memory limit: 65536 K
Description
FF is a master of graph theory, so I want to figure out a graph without any flow problems.
Returns the length of the longest chain of a tree.Multiple Input grou

Lord Riley and Sir James Kings, a British scientist, have calculated that a hot object (such as a star) must radiate energy at an infinitely large rate, which means that the energy emitted must also be infinite.To avoid this ridiculous conclusion, the German scientist Max Planck proposed in 1900 that light waves and other waves could not radiate at any rate, but only in the case of a wave packet called a quantum. In addition, each quantum has a definite energy, the higher the frequency of the wa

UI-theory of first understanding, ui-theory of first understanding
A good app not only needs good functions, but also has a good interface, so that both internal and external modifications can be regarded as a good App. In fact, just like people, you can't just be handsome, but have a connotation (to be clear, it doesn't mean cool ). Unconsciously, It has been eight years in the garden, and it has been eig

[Prehistoric giant pitfall] Number Theory template integration and number theory template Integration
This afternoon, Shen Yu told me a piece of number theory = I found that I couldn't play happily.Sort out all the content templates.This is a prehistoric giant pitfall, and the time is definitely not enough... Enter orz in the future
# Include
It should be corre

the cache mechanism on the domain name server, the answer is of course yes. Because for the name server, the above two interesting conclusions are still valid. Therefore, the domain name server can be those access to the domain name resource record cache, the user initiates the request, you can directly return the cached results, not to iterate or recursive parsing.For more information about the DNS theory section, you can also refer to these two tex

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