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I encountered some simple basic concepts, but I thought about it and found that I didn't fully understand it. The following is a summary of the Search: 【Abstract]-Generation model: Infinite sample = probability density model = generation model = Prediction-Discriminative model: Finite Sample = Discriminant Function = p

This learning note is from the "Time series analysis-based on R" written by teacher Wang After the preprocessing of a time series, it is shown that the model has the value of extracting information, then the next model is established to make the prediction. Here are three important models for fitting time series. I. AR model The AR (p)

The previous article briefly introduced the conceptual data model, the logical data model, the physical data Model basic concept, the characteristic as well as the three corresponding database development stage. Now for the three kinds of data models used in the logical data Model---Hierarchical data

Php basic design model (registration tree model, factory model, single-column model), single-column Design Mode Let's talk a little bit about it. Let's first introduce the registration tree model, then introduce the factory model,

http://blog.csdn.net/helloboat/article/details/51208128A domain model is a visual representation of a conceptual or real-world object within a domain, also known as a conceptual model or an analytical object model, which focuses on analyzing the problem area itself, discovering important business domain concepts, and establishing relationships between business do

24-day design model ---- facade model (appearance model), 24-day Design Model Original works of Lin bingwen Evankaka. Reprinted please indicate the source http://blog.csdn.net/evankakaI. Facade Mode 1. Definition The GOF Design Pattern describes the Facade Pattern as follows: Provides a unified interface for a group of

In a Web page, elements have three layout models:1. The flow model, the default, is that block-level elements are distributed from top to bottom, with widths of 100%. Inline elements are horizontally distributed from left to right. 2, floating model (float)Div, p, table, IMG and other elements can be set to float. The code for the two div displays in one line is as follows: div{ width:200px; height:40

Source: http://blog.csdn.net/amblue/article/details/17023485 In NLP and machine learning, we often encounter these two significantly different models, which have different performances in the Learning (training) and evaluation (TEST) stages. To sum up the differences between them, please add: 1. The essential difference between the two is that the modeling objects are different. Suppose there are sample input values (or observed values) x, category tags (or output values) y The evaluation o

Design Model: intermediary model learning and understanding, design model intermediary Model Mediator Pattern is used to reduce the complexity of communication between multiple objects and classes. This mode provides an intermediary class that usually processes communication between different classes and supports loos

work is handed over to the subclass for completion, this allows the system to create a new product without modifying the factory role. II. The factory method mode encapsulates the creation of objects in a centralized manner. It can be implemented without major changes when changing objects, reducing the coupling between customer programs and product objects, is a further abstraction and promotion of the simple factory model. Abstract Factory mode: Co

Tags: size reference theory maintenance using LAN E-r graph feature Database1. Conceptual model After understanding the user's needs, the user's business areas of work, after analysis and summary, refined to describe the user's business needs some concepts of things. such as the sales business "customer" and "order", there is "goods", "salesman". The main thing is to extract the concepts in the system (can not include attributes at this time, only ent

Object | server | Resolution Overview For WEB application development using the. NET platform, Crystal decisions provides three more advanced report object models for developers: 1. Crystal Report Visual Studio. NET version (. NET) object model: bundled in Microsoft Visual Studio. NET and Crystal Report 9 developer and Advanced editions. 2. New Report Application Server (RAS) object model: Bundled in Cry

Overview For Web application development using the. NET platform, crystal Decisions provides developers with three more advanced report object models: 1. Crystal Report Visual Studio. NET (. NET) object model: bundled in Microsoft Visual Studio. NET and crystal report 9 Developer Edition and advanced edition. 2. New Report Application Server (RAS) object model: bundled in the developer and advanced editions

Recently in the Model/view Framework of the QT, search on the Internet, as if the Chinese in addition to a few translations there is no valuable article. E In addition to the official introduction of QT, other articles are very few. See a foreigner in the blog wrote Model/view is he think the most bad part of QT. Is that really the case? In order to give back to the open source community, I wrote this blog,

Standard W3C box model and IE box model CSS layout classic box model (conversion), w3ccssW3C box model and IE box model CSS layout classic box model (conversion) the box model is an imp

Conceptual Data Model Design, Logical Data Model Design, and physical data model design are three major steps for database and data warehouse model design. In the data warehouse field, there is a concept called conceptual data model, which is generally translated as "conce

Standard W3C box model and IE box model --- CSS layout classic Box Model The box model is an important concept in CSS. Only by understanding the box model can the layout be better. In fact, there are two types of box models: the IE box

The box model is an important concept in CSS. Only by understanding the box model can the layout be better. In fact, there are two types of box models: the IE box model and the standard W3C box model. Their interpretation of the box model is different. Let's take a look at t

Standard W3C box model and IE box model, w3c box model ie CSS Box Model: A thinking model used by CSS technology in web design. CSS box model composition: margin, border, content ). The CSS box

Model class, model Model In this example, the class that describes an algorithm is called a model class. In this example, the functions are relatively simple. After you click a window, draw a line in the window and record all the lines so that the window can be displayed when being refreshed. To achieve this goal, you