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The grey model can be used to predict effectively, especially when the data is blurred, such as predicting when to rain, first to explain a simple and most commonly used GM model GM (a)Generate columnsSet the original time series to X1 (t) T for time t=0,1,2,3 ...., generating the column x0 (t) is the difference that the original sequence of the t>=1 is:x0(t)=x1(t)-x1(t-1)Immediate Value columnAs the name i

Features of the conceptual model: Basic Concepts and meanings, without designing any details (such as how to express and implement details), are mainly used to manipulate and manage health information at a macro level. Macro level Logical Model features: it is an extension of a conceptual model. In technical specifications, it represents the logical order betw

First, the developmentOrigin: The statistical language model originated in Ponte and Croft papers published in the Sigir of 1998Application: There are many applications of language models:Corsslingual RetrievalDistributed IRExpert findingPassage retrievalWeb SearchGenomics Retrieval Genomics SearchTopic Trackingsubtopic RetrievalSecond, basic model1, Ponte and CroftCore idea: Query likelihood scoringAlgorithm:Two core questions: (1) How to define ΘD?(

/*** Model classes that need to be converted in an array** The key in the @return dictionary is the array property name, and value is the class that holds the model in the array*/-(Nsdictionary *) Objectclassinarray;Usage examples:@property (Nonatomic,strong) Nsarray *pic_urls;-(Nsdictionary *)objectclassinarray{return @{@ "Pic_urls": [Statusphoto class]};}Nsarray *statusarray = [Statusmodel objectarraywith

The box model contains several elements:Padding;margin;content;borderThis is known to everyone, but also the definition of the book, but in the case of IE is a bit different; it's two standards.Firefox uses the standard model, while IE uses Microsoft's own standardsHere I use the formula to illustrate:W3c:Wide =width+ (padding-left) + (padding-right) + (Margin-left) + (margin-right) + (Border-left) + (borde

Mode System Patterns are not isolated-they are mutually dependent, and the pattern system binds their composition patterns together. A Software Architecture Model System is a collection of software architecture models. It includes guidance on implementation, combination, and actual use of models in software development. The main purpose of a software architecture model system is to support high-quality so

the difference between a simple factory model and a factory method pattern The biggest advantage of a simple factory model is that the factory class contains the necessary logical judgments, dynamically instantiating the related classes according to the client's selection criteria, and to the client, the dependency on the specific product. The factory method pattern defines an excuse for creating objects,

How to make a correct design direction. How to make a correct design direction. When preparing gifts for parents, friends, and lovers, we usually prepare different surprises that meet the needs of the audience. We tend to stand in each other's life scene to think about whether our gifts are appropriate and make the final choice. In the design, designers can easily put their own design preferences into the work, and forget the design of users, the ultimate consumer, has been addicted to their

In-depth exploration of the C ++ object model-object model, object model -- C ++ Object Model In C ++, there are two types of data members: static and nonstatic, and three types of classmember functions: static nonstatic and virtual Now the Standard C ++ object model: Nonsta

Lenet-5mnist handwritten numeral recognition model using L2 regularization and average sliding models feel useful, and welcome to discuss learning from each other ~follow Me Reference TensorFlow Google Deep Learning frameworkExperimental platform:Tensorflow1.4.0python3.5.0mnist datasets are downloaded and placed into the Mnist_data folder under the current directory after downloading four filesRegularization of the L2DropoutSliding Average me