deduplication rate

Php two-dimensional array deduplicationMethod 1: Dimensionality Reduction and deduplication If (! $ IsPidArrKey) {// Dimensionality Reduction deduplication $ temp = array (); foreach ($ tmp as $ k = >$ v) {$ v = implode (',', $ v); $ temp [] = $ v;} $ temp = array_unique ($ temp); foreach ($ temp as $ k => $ v) {$ temp [$ k] = explode (",", $ v) ;}$ tmp = $ temp ;} Method 2: remove duplicates using the thir

This example describes how to merge multiple array deduplication algorithms implemented by JS. We will share this with you for your reference. The details are as follows:? 1234567891011121314 var arr1 = ['a','b'];var arr2 = ['a','c','d'];var arr3 = [1,'d',undefined,true,null];// Merge two arrays to remove duplicatesvar concat_ = function(arr1,arr2){// Do not directly use var arr = arr1. In this way, arr is only a reference of arr1, and mod

The accuracy rate, recall rate, and F value are important evaluation indicators of the target in a mixed environment. In this paper, these three indicators are favored. Let's take a look at the definition of these indicators first: Accuracy Rate = Total number of correctly recognized individuals/total number of identified individuals Recall

User experience (UEO) mainly through site design, site keyword layout, website promotion, for the lack of details of the site to constantly improve the conversion rate of the site. Web site to improve user experience the ultimate goal is to mention Rise to the site to increase the rate of the purchase of products or services. Improve the user experience degree one: User behavior analysis 1. What is the p

This article mainly introduces the use of Yahoo exchange rate interface to achieve real-time exchange rate conversion example, we refer to the use of the bar The code is as follows: The code is as follows: function getexchangerate ($from _currency, $to _currency) { $amount = Urlencod E ($amount); $from _currency = UrlEncode ($from _currency); $to _currency = UrlEncode ($to _currency); $url

Methods for finding the circumference rate π and the circumference rate π Method 1: Calculate the approximate value of π by probability method. The probability method is also called the Monte Carlo method. Suppose there is a circle with a radius of 1, then the area of the 1/4 circle is equal to 1/4 π. The probability method is used to calculate the area of 1/4 circles, and 1/4 π is obtained. The specific pr

If Keil arm is used, vpbdiv = 0x00000000 is automatically generated in startup. S, which leads to fpclk dividing by 4. The baud rate is reduced by four times. The default value of startup. s in Keil is as follows .; // ; // ; // ; // ; // ; // ; // ; // ; // ; // ; // Vpbdiv_setup equ 0vpbdiv_val equ 0x00000000 we will change it: Vpbdiv_setup equ 1 Vpbdiv_val equ 0x00000001 Solve the problem. # Include # Include "config. H" # Define uart_bau

and the intersection of the Ground Truth, which is the accuracy rate of the detection:Iou=detectionresult⋂groundtruthdetectionresult⋃groundtruth IoU = \frac{detectionresult⋂groundtruth} { Detectionresult⋃groundtruth} As shown in the following illustration:The blue box is: GroundtruthThe Yellow box is: DetectionresultThe green box is: Detectionresult⋂groundtruthThe red box is: Detectionresult⋃groundtruth to say. 1, this article refers to the followin

frames required for one Processing This is the unit for audio device data profiling and storage of audio data. [Staggered mode] Digital Audio Signal storage method. Data Sequential frame storage First, record the left and right channels of frame 1, and then start the record of Frame 2... [Non-staggered mode] The first record is the left-channel sample of all frames within a cycle, and then all right-channel samples are recorded. Bit Rate] Trans