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Original link: http://tecdat.cn/?p=20650 People usually use receiver operating characteristic curve (ROC) for binary result logistic regression. However, the outcome of interest in epidemiological studies is usually the time of the event. The prediction model in this case can be described more comprehensively by using the time-dependent ROC var ...

1, Introduction 1. What is a Condition Any Java Object has a set of monitor methods (defined on java.lang.Object), mainly including wait(), wait(long timeout), notify() and notifyAll() methods. These methods cooperate with the synchronized synchronization keyword to realize the wait / notification mode. The Condition interface also provide ...

LeetCode 521 longest special sequence I subject LeetCode 521 longest special sequence I Method: brain sharp turn The length of the subsequence of a string will not exceed the length of the string. If the length of the subsequence is equal to the length of the string, the subsequence is the string. If the two strings are the same ...

Small file processing topics I. MapReduce 1.1 problems caused by small data On HDFS, each file occupies 150byte (in memory) on the namenode. If there are too many small files, it will occupy a lot of namenode memory, and the speed of searching metadata will be very slowIn the process of processing MapReduce, each small file should be started ...

Problem descriptionCode locations covered in this article: https://github.com/wangzixi-d...Look at a group of parent components and child components:@Component({ selector: 'child', template: `<span>I am a child.</span>` }) export class ChildViewComponent {} @Component({ selector: 'parent', template: ` &l ...

introduction Pthon uses a unified style to process sequence data. No matter what kind of data structure, string, list, array, XML, or database query results, they all share a rich set of operations: iteration, slicing, sorting, and splicing. Built in sequence type overview The standard library provides a rich selection of sequence types impl ...

Springboot global exception handling 1, The default exception handling mechanism of Spring Boot By default, springboot provides two corresponding methods: ① the browser request header is Accept: text/html, and springboot will default to an html document content, which is "Whitelabel Error Page"; ② The Json format string information ...

RN Android 64 bit apk interface stuck Problem description The program developed by Rn is packaged with Anroid 64apk. After accessing the pangolin advertisement, start the application and operate for a period of time, and the interface will be stuck, Specifically, the embedded webview can click and slide, and the native interface can slide up ...

During this time, I received a task, which is to jar the project according to the module. The purpose is: 1. Package according to modules to facilitate upgrading 2. After the module is subcontracted, which module is modified, update the corresponding module separately. There is no need to worry about the abnormal operation of the project due ...

Intelligent transportation combination fist - flying paddle realizes vehicle category / license plate / speed detection, cross-border head tracking, traffic flow density detection and retrograde detection General introduction All the codes and files of this project have been uploaded to Baidu aistudio. Partners in need can search the followin ...