, the measurement standard is not OK: explicit feedback with MSE, recessive do not know2. Basic settingsU,v represents the user; I,j indicates that Item;r (U,i) represents a behavior or rating; no behavior is recorded as 0 points.3. Previous work1) Neighborhood Model: First there is user-base, after the item-base;item-base effect is better, because the item responds to user preferences, and similar user estimates are not allowedITEM-CF is used more in explicit feedback and can be optimized with
(This article is excerpted from: zhihu personal Q A: reading (6) how to solve the contradiction between taking notes and reading and the type of Reading Notes) Question 1: how can we solve the contradiction between taking notes and reading? Question: Is it confusing to read quickly and understand the ideas conveyed by
Golden soft audio reading and reading
The x-Speak software is a mobile device that can be used on mobile phones, tablets, and other mobile devices) the audio reading function of Text and PDF documents allows users to listen with their ears when they are not easy to see with their eyes. In addition, the sound can be synchronized with the Text for comparison betwe
Double your reading rate)
The purpose of the random clippings column is to recommend easy-to-read English articles so that everyone can get used to reading English technical articles. This time, we recommend an article related to reading skills, I hope this will help you improve your reading skills. The article mention
Again to Friday, from the holiday time, visual only a few hours, a week's work day has passed.Think of us from kindergarten to university, at least to school 18, plus a few years of work, there will always be one or two special books. These books play different roles, like a journey, a romance, a mystery, a comedy. In yesterday-World Book Day, the vast majority of Oscer Show their favorite books (today Strum's highlights in the back)First wave: Technical books@ Jedi Counterattack: #世界读书日, advoca
In the Internet era, news, books, and various types of information are very convenient, but the feeling of "reading" is getting farther and farther away from people. Ao you browser 3 has carefully developed a reading model for reading enthusiasts. With a comfortable visual experience and a convenient reading experience
Deep understanding of JVM Reading Notes Mind Map, deep understanding of jvm Reading Notes
To prove that I have completed this book and bought a new book, I don't have to worry about it... After 8 minutes of brain image, I feel that the entire person is not good. T_T brain cells do not know the number of dead cells...
In fact, it is not thoroughly understood. It is estimated that we will open it again in a f
I. Prerequisites 1. Proficient and Solid language Foundation?? If you learn Java, but the reflection, generics, annotations have been semi-solution, or do not read what frame, go back to the Java Foundation to hit solid instead of you more beneficial.2.UML capability?? In software engineering, UML plays a very important role in the different life cycle stages of software, there is no good UML level, the face of large-scale project source will be helpless.3. Understanding of the business?? If you
Reading is really a good habit. No matter what you want to read, it may be knowledge, problem solving, or time consuming. However, even if it is time consuming, at least the news has increased. Compared with other entertainment activities, it seems that there are still some gains.
However, from the current national situation, our reading level does not seem so optimistic. Our country lags behind the Eu
Note books can also belong to the best-selling books. These two types of books have similar reading methods.Article.
For this type of books, my reading speed is very fast. Generally, about 200 pages of books should be a day. Because there is a phenomenon in such books, that is, "the big picture has less information ". Self-transmission books have been written after
I. Overview of the overall process of the stuts2 framework
Struts2 source code reading (a) _ struts2 Framework process overview http://blog.csdn.net/xiemk2005/article/details/6003874
2. actioncontext and cleanup Filter
Struts2 source code reading (2) _ actioncontext and cleanup filter http://blog.csdn.net/xiemk2005/article/details/6003909
3. initialize configurationprovider and Dispatcher in the configura
This article will introduce a comparison between the efficiency of reading/writing files and reading/writing databases in php. For more information, see.
The test procedure is as follows:
// Note 1: Because the read database statement calls a simple encapsulation function twice, the Read File is also changed to a sequential call twice, and the database record ID is 1 at the first entry, and the unique index
The efficiency of reading and writing files and reading and writing databases in php. This article will introduce a comparison between the efficiency of reading/writing files and reading/writing databases in php. For more information, see. The test procedure is as follows: Note 1: This article introduces the efficiency
Efficiency Comparison Between Reading and Writing files and reading and writing databases 1: Since the read database statements call a simple encapsulation function twice, the read files are also changed to two consecutive calls, the database record ID is 1 in the first entry, and the unique index. NOTE 2: 4 k Data is tested twice, and integer data is 1set_time_limit (0); 23 functionfnGet ($ fi
Efficiency C
Two PDF readers are installed in windows. One is Adobe Reader 9.0 Simplified Chinese version and the other is Foxit Reader.
The PDF reading software provided by Ubuntu has a good function: it stores the last reading position. The next time it is opened, it automatically jumps to the last reading position and reads the PDF document under Ubuntu, it feels smoother
Reading while reading: The way out of the software Workshop
Zdnet software channel Author: Li Ning | ericlee Source: zdnetKeywords: Reading and reading techtv
Link: http://soft.zdnet.com.cn/software_zone/2008/1117/1238789.shtml
Not only does it appear in a survey report on the Chinese software industry. The number
In php, the efficiency of reading and writing files is compared with that of reading and writing databases. This problem was also recently mentioned, that is, whether to read files faster or to read databases faster and how fast it can be. tian yuan also searched for the problem and did not see any netizens reply to this question, it may also be that this question was just recently come to mind, that is, wh
Code Complete Post-reading summary and new extended reading planIt took a year to finally read the Code encyclopedia, to do a simple summary here, and to arrange the next stage of the extended reading plan.1, select Code Daquan as my programmer's first book of career introduction, I think is very correct. This book is vivid in language, good at using metaphor to
I remember reading an article a long time ago,
The main content is that Chinese and Westerners have different attitudes towards reading.
Chinese people pay attention to scholar, exquisite home to get a big study, exquisite put on the bookshelf piled up a book, fastidious reading when sitting in a wide desk before the best also have a cup of tea. And then leis
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