The Latent Semantic Analysis (LSA) is also called latent Semantic indexing (LSI), which is to discover the potential meanings and concepts of these documents by analyzing the documents, latent That is, to establish the relationship between semantic (lexical family) and document potential meaning, It maps words and documents into a ' concept ' space and compares them within this space (note: a dimensionality reduction technique). Latent Semantic Analy
Stanford ml Open Course Notes 15In the previous note, we talked about PCA ). PCA is a direct dimensionality reduction method. It solves feature values and feature vectors and selects feature vectors with larger feature values to achieve dimensionality reduction.This article continues with the topic of PCA, including one application of PCA-LSI (Latent Semantic Indexing, implicit semantic index) and one implementation of PCA-SVD (Singular Value Decompos
: Universal processor with all the above functionsAll kinds of special processor, coprocessor, embedded processor3. Classification by data typeFixed-point computers, Frond, vector computers, stack computers, etc.4, according to the number of processors and type DivisionSingle processorParallel processing machine, multiprocessor, distributed processorCorrelation processorSuperscalar processor, ultra-line processing machine, VLIW processorSMP (symmetric multiprocessor), MPP (massively parallel pro
Linux ISCSI multi-path Mount Storage
Preparations:After the LUN is created, the lLUN is divided into independent groups, and the server's iqn information is added to the LUN. If it is placed in the default group, the hard disk information displayed during ISCSI scan is of all Luns, which may lead to misoperations.
Scan storage:The ISCSI plug-in has been selected when installing the system. If not, you can use the local source or yum for installation.[Root @ CLanguage] # service iscsi start # sta
]# partedGNU Parted 2.1Using /dev/sdaWelcome to GNU Parted! Type 'help' to view a list of commands.(parted) p Model: LSI AOC-USAS2LP-H8iR (scsi)Disk /dev/sda: 40.0TBSector size (logical/physical): 512B/512BPartition Table: gptNumber Start End Size File system Name Flags1 1049kB 525MB 524MB ext42 525MB 263GB 262GB ext43 263GB 284GB 21.0GB ext
The company has a Dell R720 server, want to install Xen, the result of loading when asked me to select the disk, it appears that the disk RAID does not recognize the problem. Find Dell official for detailed model,megaraid SAS 9265-8i is LSI's product, go to LSI official website http://www.lsi.com China Station: http://www.avagotech.cn /support/download-search Download
Understand, first go to Baidu search for this raid information, understand,
:915715mbwritecache:enabled (Write-back) FRU: nones.m.a.r.t.:nos.m.a.r.t.warnings:0powerstate:full Rpmsupportedpowerstates:fullrpm,poweredoffssd:yesmaxcache capable:nomaxcache Assigned:noncqstatus:enabledcommandcompletedsuccessfully.If it's LSI, install the MEGACLI kit, which I remember on the LSI website.[Email protected] ~]#/usr/dpt/raidutil-l allYou can see very detailed information.SoftLayer's servers a
kernel, as well as the kernel image, and the console system files should be equipped with RAID1 protection We do not recommend using on-board LSI for raid, 5i 6i 6m cards are recommended because the onboard LSI has a slow CPU, no cache, no battery protection, and therefore is not recommended for use in production environments For VMFS Storage, we recommend hosting with the best storage devices available. F
: the relationship between the document and the word as a probability distribution, and then try to find the probability distribution, with the document and the probability distribution of words, Then we can get everything we want.
In the basic assumption of pLSA, document D and Word w are generated as follows: Select document D with the probability of P (d). The probability of P (Z|D) is chosen for the implicit class Z. Generates W from Z in the probability of P (w|z). P (z|d) and P (w|z) are a
.
About BL2 startup process:
BL2 copies the OS image (BL3) to the DDR and then checks the integrity of the OS image.
In BL2, the system clock is initialized and the DDR is initialized. If necessary, uart, net, emmc, and sdcard can also be initialized.
The Process Code in BL2 does not depend on BL1, that is, BL2 will no longer go back to call the BL1 process.
The starting process of each phase is basically like this. Next we will introduce how to divide each segment of the internal memory in
1. Login to VCenter via VSphere client. Go to the VM2. Create a 1G new disk (SCSI 1:2) for the VM temperary3. Change SCSI controller1 to paravirtual from Logical LSI SAS4. Boot VM, and upgrade VMtools5. Shutdown the VM6. Remove the new disk (SCSI 1:2) and SCSI controller1 'll be removed automatic7. Change SCSI Controller0 to paravirtual from Logical LSI SAS8. Change options mem/cpu HotPlug to enable9. Remov
Disk array is a long-standing technology on the server, it is widely used by most server OEMs to make reasonable use of space and performance in different array modes to match the cost-effective disk array. Among them, LSI Company's MegaRAID SAS products are widely used in various brands (except HP) x86 servers.Why is there a cache?Array Card core technology consists of three parts: 1, Data stripe, 2, data redundancy, 3, cache. Where the cache is know
design, 25MHz)LSE (OSC): External low-speed crystal (default is 32.768KHZ)LSI (RC): Internal low-speed crystal oscillator, ~40khzPLLCLK: Locked loop multiplier output, maximum frequency less than 72MHz, note: pllclk source HSE,HSE/2,HSI/2(2) System clock SourceSYSCLK: System clockSOURCE Hsi,pllclk,hse, if the CSS (Clock monitoring System) detects a HSE failure, SYSCLK = HSI;(3) Main output clock sourceHCLK: High performance bus clock (sysclk via AHB
Code Cache
4X32KB 8-Way Collection Association
L1 Data Cache
4X32KB 4-Way Collection Association
L2 Cache
4X256KB 8-Way Collection Association
L3 Cache
8MB 16-Way Collection Association
Server Board
Motherboard model
HP ProLiant DL120 G7
Motherboard chipset
HP ProLiant DL120 G7
North Bridge chip characteristics
2xQPIVt-d
, 0.35355339059327373), (7, 0.35355339059327373)], [(8, 0.18147115159841573), (9, 0.49169813431045906), (10, 0.49169813431045906), (11, 0.49169813431045906), (12, 0.49169813431045906)], [(8, 0.2084041054460164), (13, 0.5646732768699807), (14, 0.5646732768699807), (15, 0.5646732768699807)]]Obviously, the length of the sentence is different, so the dimensions of the TFIDF vector are different. So how do we do this? --You can use LSI vectors to e
1. In stm32, there are five clock sources:HSI,HSE,LSI,LSE,PLL.
①HSIIt is a high-speed internal clock, RC oscillator, and the frequency is 8 MHz.
②HSEIt is a high-speed external clock, which can be connected to a Z/Ceramic Resonator or an external clock source. The frequency range is 4 MHz ~ 16 MHz. Generally, it is connected to 8 MHz.
③LSIIt is a low-speed internal clock, RC oscillator, and the frequency is 40 kHz.
④LSEIt is a Z crystal with a low-spe
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