hubbard how to measure anything

Recently thinking about a problem is how to calculate a large project, what is the big measure of what? Why this problem is understood, because in the actual development process, if you know how big the project, then there are a variety of corresponding solutions (what we call the repertoire of things) can be used.My thoughts.I think there are a few measurable criteria.1. Code VolumeThat is, the amount of code for the project.2. User VolumeCan also be

the ratio of the number of samples to the total number of samples.A = (tp + tn)/(P+N) = (tp + TN)/(TP + FN + FP + TN); It reflects the ability of the classifier to judge the whole sample-positive judgment is positive and negative judgment is negative.2. Confusion matrices (confusion matrix)3. Accuracy rate (Precision), recall rate (Recall) and F1-measureAccuracy rate (Precision):PRE = tp/(TP+FP); Reflects the proportion of the true positive sample in the positive case determined by the classifi

How to use the digital Universal meter to measure the polarity of transistors and the method of NPN, PNP . First of all, say the pointer of the multimeter and the digital multimeter of the red-black pen and the internal battery connection difference;So there are some differences between the two types of tables. Next, just talk about how to use the digital measurements. Use a digital multimeter buzzer gear.①, fixed base pole (b)Select the transistor

How to measure the speed of the Apple Mac system? Many people do not know how to measure speed in the computer, especially in the Mac computer test the size of the speed, in fact, the method is very simple, we only need to use Tencent computer Butler Mac version of this software can be easily and quickly test the current speed situation, The following PC6 small part of the simple introduction of the followi

Measure the test taker's knowledge about the multi-tenant structure and the tenants of the ABP framework. (This article is also published in my public account "dotNET daily excellent article". Welcome to the QR code on the right to follow it .) Question: The ABP framework provides excellent support for multi-tenant scenarios. It has a built-in multi-tenant processing mechanism. Let's analyze this feature in depth today. Recently, an SaaS was develop

Zend Framework Session Validators security measure Bypass Vulnerability Release date:Updated on: Affected Systems:Zend FrameworkDescription:Bugtraq id: 72270 Zend Framework (ZF) is an open-source PHP5 development Framework that can be used to develop web programs and services. The Zend Framework has a session verification program Security Restriction Bypass Vulnerability. Attackers can exploit this vulnerability to bypass certain security restrict

Cisco IOS IKEv2 replay security measure Bypass Vulnerability Release date:Updated on: Affected Systems:Cisco IOSDescription:--------------------------------------------------------------------------------Bugtraq id: 63426CVE (CAN) ID: CVE-2013-5548 Cisco IOS is an interconnected network operating system used on most Cisco system routers and network switches. A security vulnerability exists in the implementation of the Cisco IOS IKEv2 protocol, which c

Use Navigation Timing to measure page loading time and navigationtiming I recently read a book titled "web Performance Practice log", in which chapter 13th "Network Timing" describes a relatively new method for calculating the loading time of each part of a page, this is what the W3C Web performance team is doing. Next I will give you a rough introduction: First, let's start with what this article will introduce. If you want to write a piece of code t

Oracle12c (oracle12.1.0.1.0) Installation Guide -- Measure OEL5.9 (RH5) [root @ oel ora12c] # uname-aLinux oel 2.6.39-example #1 SMP Thu Jan 3 18:31:38 PST 2013 x86_64 x86_64 x86_64 GNU/Linux [root @ oel ora12c] # cat/etc/ oracle-release Oracle Linux Server release 5.9 # because the machine has an oracle10g Database, the oracle user is created, so creating an ora12c user does not affect the original user. [SQL] mkdir-p/u02/ora12c useradd-g oinstall-G

Measure the test taker's knowledge about how to calculate the reading volume of a blog. Content: Use wget to batch download the casual pages of my own blog park to see if the reading volume has increasedEnvironment: kali + pythonIdea: 1. Execute the python script by calling the script on the terminal, for example, python add_readcounts.py-f my_blogs2. You are not familiar with crawlers, but cannot add each link to the code. You can use a text file to

Measure the test taker's knowledge about the root-mean-square method and the root-mean-square method.Definition: Root mean square method: the root mean square method is a statistical analysis method. It is used to extract the square sum of the dimensional tolerances in the dimension chain and then open the root to obtain the tolerances of the key dimensions. Calculation formula: ; It is assumed that the Ppk indicators of each dimension are uniform (su

Python is used to measure the number of words in a text file, This example describes how to count the number of words in a text file in Python. We will share this with you for your reference. The details are as follows: Counts the number of partial files, and obtains the files from the file.txt file in the current directory. #-*-Coding: GBK-*-import stringimport sysreload (sys) def compareItems (w1, c1), (w2, c2): if c1> c2: return-1 elif c1 = c2: ret

Measure the test taker's knowledge about DRM in oracle10gRAC.Summary of DRM1. What is DRM?Dynamic Resource Management (DRM) is a new feature of oracle 10 Gb. in oracle rac environment, ORACLE uses GRD (Global Resource Service) to record Resource information of each node, it is managed through the GCS (Global Cache Service) and GES (Global Enqueue Service) services. Each node in RAC has its own SGA and buffer cache. To ensure the consistency and high p

Measure the test taker's understanding about JavaScript, Ajax, and jQuery. Jquery is a good encapsulation of javascript, and it is very lightweight. It can be called as a framework in a similar way. Next we will compare the implementation of ajax by javascript and jquery, after jquery encapsulates it, it is easy to implement. Besides, using jquery instead of javascript to implement some functions will bring unexpected benefits to browser compatibility

Measure the test taker's knowledge about the differences between MaxDB and MySQL. MaxDB is a SAP-certified database of MySQL AB. The MaxDB database server supplements the MySQL AB product series. Some MaxDB features are unavailable on the MySQL database server, and vice versa. The following briefly introduces the main differences between MaxDB and MySQL, but not completely. ? MaxDB is a system that operates in client/server mode. MySQL can run as

Measure the test taker's knowledge about the Linux external file system tool-general Linux technology-Linux technology and application. For more information, see the following. The Linux kernel supports multiple external file systems. to access these systems, you only need to mount them to the appropriate file system. For some file systems, specialized tools are also provided that do not need to be mounted, and access can be completed only by user

. To accommodate the last character of the next body line. appear in either case. The DrawText function returns the height of the formatted text. Instead of drawing text.Dt_center: Specifies that the text is centered horizontally.Dt_vcenter: Specifies that the text is centered vertically.This tag is only valid for single-line text output. So it must be used in conjunction with Dt_singleline.Dt_singleline: Single-line display of text. Both the carriage return and the line feed are constantly on l

The quality inside has a big characteristic is the efficiency, mainly is the performance test. It contains three sub-attributes, time characteristics, resource characteristics and compliance. The time characteristic tells us that the performance test is concerned with whether the response time meets the user's requirements, followed by the number of transactions per second. Resource-related features are hardware resource monitoringThe response time is more complex, including client time, network

10 o'clock night work, walk to the bus station only to know, most of the car 9 points 30 is the last bus, sat so long bus today just put the time point, then simply take advantage of the breeze hike back, with footsteps to measure the city, deepen the impression.This period of time is not enough sleep, is not how busy, mainly because they have not arranged a plan, once the rhythm is disturbed to adjust to take time.Walking is a very good exercise, int

colleagues. Some colleagues may come to the office at seven o'clock A.M., and some may come at three o'clock P.M. Some colleagues think that working at home is more efficient. If employees do not like to work in the office, they do not need to come to the company every day (although in most cases, everyone will come to the company ). Why are we so "loose" in one day? Two reasons: First, working in a loose environment allows us to work at our favorite time and place; second, we hope to creat