vostro 1400

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SLB Fault Diagnosis: a suspected case caused by an MSS Value

sent from the client to the server cannot be greater than this value. In actual transmission, both parties usually take the minimum value of the two as the maximum package size sent by both parties. Based on the above communication process, we will analyze the above two packet capture content: Packet Capture 1: The client sends a SYN packet, indicating that the maximum acceptable MSS value is 1460. The Server Load balancer device responds with an acceptable MSS value of

Oracle Learning (1): basic syntax

ENAME JOB MGR HIREDATE SAL COMM ------------------------------------------------------------------------- DEPTNO ---------- 7369 smith clerk 7902-12-80 800 20 7499 allen salesman 7698 20-2 months-81 1600 300 30 7521 ward salesman 7698 22-2 month-81 1250 500 30 EMPNO ENAME JOB MGR HIREDATE SAL COMM ------------------------------------------------------------------------- DEPTNO ---------- 7566 jones manager 7839 2975-81 20 7654 martin salesman 7698 28-9 month-81 1250

IMP Import Database report ora-01400 error Resolution ___ Database

Oracle server-enterprise edition-version:11.1.0.6 to 11.2.0.1-release:11.1 to 11.2 Oracle server-enterprise edition-version:11.1.0.6 to 11.2.0.1 [release:11.1 to 11.2] Information in this document applies to any platform. Checked for relevance on 18-nov-2011*** SymptomsYou are exported a table using the original Export utility (exp) in direct path mode. During Import, you received the errors: . . Importing table "A_tab" Imp-00019:row rejected due to ORACLE error

Five, IPv6 address representation method (level three network technology)

For a complete IPv6 address, need to write 128 bits, has been divided into 8 paragraphs, 4 characters each, that is, the complete representation of a IPV6 address, need to write 32 letters, which is quite long, and easy to confuse and error, so IPv6 in the representation of the address, is fastidious, so far, IPV6 addresses are represented in three ways, namely:1. Preferred format2. Compression representation3.ipv4 embedded in the IPV6The following are details of these three IPv6 address represe

Preinstalled premium tulinux Dell VostroV13 ultra-light business model

As one of the world's most famous PC manufacturers, Dell released VostroV13 ultra-thin business laptop, which is Dell's first ultra-low price notebook dedicated to enterprise users. The starting price of the Low-configuration version is USD 449 (about RMB 3000). It uses the Intel saiyang 743ULV processor and pre-installs the UbuntuLinux operating system; the standard version starts with $649 (about $4400) and uses Intel Core2DuoSU7300, SU3500 processor, pre-installed Window As one of the world'

Implementation of two Linux systems

located; the installation machine is sda1; 2. view the UUID in Ubuntu, first Mount the hard disk partition, and then run the following command: (1) The UUID tdtc010 @ tdtc010-Vostro-270 of each partition :~ $ Ls-l/dev/disk/by-uuid (2) determine the CentOS partition tdtc010 @ tdtc010-Vostro-270 :~ $ Blkid/dev/disk/sdaX (X is 1, 2, 3 ......) until "/dev/sda6: LABEL ="/"UUID =" 9cd61716-6cdb-43d1-8e58-348089f

Dell started to use Ubuntu to defend against Windows 8?

Microsoft launched its own Windows 8 x86 tablet SurfacePro, which will sooner or later steal the business of other PC manufacturers. Many hardware manufacturers have begun to plot countermeasures. Dell's countermeasure is to embrace Linux. Dell has just launched Ubuntu XPS13, pre-loaded Ubuntu12.04PrecisePangolin, for $1,449, $50 cheaper than Windows. XPS is mainly intended for the consumer market, but recently DellUSA once again announced Microsoft launched its own Windows 8 x86 flat Surface P

Implementation of two Linux systems

Implementation of Hard Disk Partitions In two Linux systems: 1. 30 GB-Ubuntu12.04 (desktop) 2. 4 GB 3. 80 GB-CentOS 4. 386 GB installation sequence: Ubuntu-> CentOS phenomenon: many websites that cannot access the CentOS operating system install CentOS first and then install Ubuntu! Reprinted please indicate the source: xiaobin_hlj80 solution steps are as follows: 1. Downgrade Grub2 to make Ubuntu compatible with the CentOS boot program, we need to change Grub2 of Ubuntu to Grub! This is importa

Install opensuse 10.2 NVIDIA graphics card

Despite the one-click installation in opensuse software package management, the one-click installation is always problematic and cannot be started. The prompt "X-server not running" appears, and a series of errors are displayed. Search the entire Google and finally find the solution:Installation environment: OS: opensuse 10.2MACHINE: Dell vostro 1310Graphics: NVIDIA geforoce 8400Memory: 3 GBHard Disk: 250 GBMotherboard: Intel 965 Traditional Method

Pre-compiled commands and related macro Summary

current source file is compiled, in the format of "HH: mm: SS. 04) _ date __Compile the date of the current source file, in the format of "Mmm dd YYYY. 05) _ file __The name of the current source file to be compiled. 3. instance description 01) determine the current compiling environment based on the value of _ mfc_ver.# If _ msc_ver> = 1400// This is Visual C ++ 2005# Elif _ msc_ver> = 1310// This is Visual C ++. NET 2003# Elif _ msc_ver> 130

Evaluation indicators: accuracy (Precision), Recall (Recall), and F-value (f-measure)

system is measured; recall is the ratio of the number of related documents retrieved and the number of related documents in the document library, which is measured by the recall of the retrieval system. In general, precision is the number of items retrieved (such as documents, Web pages, etc.) that are accurate, and recall is how much of the exact entries have been retrieved. The correct rate, recall rate and F value are the important evaluation indexes of the target in the mixed environ

Correct rate, recall rate, and F value

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 rate = Total number of correctly recognized individuals/total number of individuals in the test set F value = accuracy * recall rate * 2/(accuracy rate +

Null in Oracle

In the database, a null value is used to indicate that the actual value is unknown or meaningless. In a table, if a column in a row has no value, it is called NULL ). A null value can be returned for any data type column as long as the non-NULL or primary key integrity restriction is NOT used. In practical applications, ignoring the existence of null values may cause unnecessary troubles. For example, in the following employee table (EMP), the employee name (ENAME) is KING's Row, because KING i

Recall (recall) Precision (accuracy) f-measure e value sensitivity (sensitivity) specificity (specificity) misdiagnosis rate of missed diagnosis ROC AUC

of precision and recall, and b>1 indicates more emphasis on p E =1-(b^2 + 1)/(1/p + b^2/r) =1-(b^2+1) *p*r/b^2*p +r) Example: There are 1400 carp, 300 shrimp and 300 turtles in a pond. Now for the purpose of catching carp. Sprinkle a big net, caught 700 carp, 200 shrimp, 100 turtle. So, these indicators are as follows: Accuracy = 700/(700 + 200 + 100) = 70% Recall rate = 700/1400 = 50% F value = 70% *

Recommended system metrics-accuracy (Precision), Recall (Recall), F value (f-measure) _dm

correct message bar/sample extracted The value is between 0 and 1, the closer the value is to 1, the higher the precision or recall. 3. F = Correct rate * Recall rate * 2/(correct rate + recall rate) (f value is the correct rate and recall rate of the harmonic mean) Take this example: there are 1400 carp, 300 shrimp and 300 turtles in a pond. It is now for the purpose of catching carp. 700 Carp, 200 shrimp and 100 turtles were caught in a large net.

Chapter One (1.2) machine learning concept Map _ machine learning

(such as documents, Web pages, etc.) is accurate, recall is the number of all accurate entries have been retrieved. The correct rate, recall rate and F value are the important evaluation indexes to select the target in the mixed environment. Take a look at the definition of these indicators first: Correct rate = number of correct message strips/extracted information strips Recall rate = Number of information in the correct Information Bar/sample extracted The value is between 0 and 1, the close

Linux Driver Development

Tags: war ETH ack CTO bin 5.4 red \ n lib1. Install Linux2. Write Hello Worldhello.c #include Makefile obj-m: = hello.okerneldir? =/lib/modules/$ (Shell uname-r)/buildpwd: = $ (shell pwd) All: $ (make)-C $ (Kerneldir) m=$ (PWD) CLEAN:RM-RF *.o *~ core depend. *.cmd *.ko *.mod.c. Tmp_versions [emailprotected]:~/desktop# makemake-c/lib/modules/4.2.0-27-generic/build M=/root/Desktopmake[1]: Entering Directory '/usr/src/linux-headers-4.2.0-27-generic ' LD/ROOT/DESKTOP/BUILT-IN.O CC [M]/root/deskt

Linux Driver Development

1. Install Linux2. Write Hello Worldhello.c #include Obj-m: = hello.o is compiled into a module, followed by the corresponding file name plus. oMakefile obj-m := hello.oKERNELDIR ?= /lib/modules/$(shell uname -r)/buildPWD := $(shell pwd)all: $(MAKE) -C $(KERNELDIR) M=$(PWD)clean: rm -rf *.o *~ core .depend .*.cmd *.ko *.mod.c .tmp_versionsInstall Module command insmod./hello.koRemove Rmmod./hello.koviewing logs with command Tail/var/log/kern.log [emailprotected]:~/desktop# makemake-

Accuracy, recall and F-values

The correct rate, recall rate and F value are the important evaluation indexes of the target in the mixed environment.Consider the definition of these indicators first:Correct rate = number of individuals correctly identified/number of individuals identifiedRecall rate = Number of individuals correctly identified/total number of individuals present in the test setF value = correct rate * Recall rate * 2/(correct rate + recall rate)Example: There are 1400

"Go" recommended system evaluation indicators-accuracy (Precision), Recall (Recall), F-value (f-measure)

: 1. Correct rate = The correct number of messages extracted/the number of extracted information bars 2. Recall rate = The correct number of information to be extracted/the number of information bars in the sample The two values are between 0 and 1, the closer the value is to 1, the higher the precision or recall. 3. F value = correct rate * Recall rate * 2/(correct rate + recall rate) (f value is the harmonic mean of correct rate and recall rate) Example: There are

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