]: rate each candidate window with multiple random SEED hyper-pixel maps. The scoring strategy is similar to Objectness's superpixel straddling (no additional information added). The authors show that using multiple hyper-pixel mappings (Superpixel maps) can significantly improve recall rates.2.3 Other proposal methods (alternative proposal methods)?shapesharing [47]: is a non-parametric data-driven method, by matching the edge to transform the target
the saved Movie_data.npy and Movie_target.npy directly to save time.3. Code and AnalysisThe code for logistic regression is as follows:[Python]View PlainCopy
#-*-Coding:utf-8-*-
From matplotlib import Pyplot
Import scipy as SP
Import NumPy as NP
From matplotlib import Pylab
From sklearn.datasets import load_files
From sklearn.cross_validation import train_test_split
From Sklearn.feature_extraction.text import Countvectorizer
From Sklearn.feature_extraction.text import Tfidfv
For the introduction of machine learning, we need some basic concepts:Definition of machine learningM.mitchell the definition in machine learning is:For a certain type of task T and performance Metric p, if a computer program is self-perfecting with experience E in the performance of P measured on T, then we call this computer program to learn from experience E.Algorithm classificationTwo pictures are a good summary of the (machine Learning) algorithm classification:Evaluation indicator Classifi
point of interest or the user's real-time intentions. And we recommend the scene will be with the user's interests, location, environment, time and other changes. The recommendation system mainly faces the following challenges:
diversity of Business forms: In addition to the recommended merchant, we also based on different scenarios, real-time judgment, so as to introduce different forms of business, such as the group, hotels, attractions, overlord meal.
user consumption scene dive
1. First create the relevant user hacluster and the group haclient, then set the environment variables, and finally install heartbeat
The process is as follows:
(1) Add users and groups
Groupadd haclientUseradd-g haclient hacluster
(2) Set Environment Variables
Vi/root/. bash_profile, add the following content:
Export PREFIX =/usr/local/haExport LCRSODIR = $ PREFIX/libexec/lcrsoExport CLUSTER_USER = haclusterExport CLUSTER_GROUP = haclientExport CFLAGS = "$ CFLAGS-I $ PREFIX/include-L $ PREFIX/l
:987896
# drbdadm -- --overwrite-data-of-peer primary mydrbd
Note: It is applicable to initial settings.
View the status again:
# drbd-overview 0:mydrbd Connected Primary/Secondary UpToDate/UpToDate C r-----
Note: Primary/Secondary: current node/another node
6. Create a file system and mount the master node node1)
The file system can only be mounted on the Primary node. Therefore, you can format the drbd device on the master node:
# mke2fs -j /dev/drbd0# mkdir /mydata# mount /dev/drbd0 /myda
About Kubernetes Master Multi-node and high-availability, the online approach takes a active-standby approach, namely:Using software such as pacemaker makes certain master services (Apiserver,scheduler,controller-manager) run only one instance at a time. Specifically, if you have more than one master node, Scheduler,controller-manager is installed on it, Apiserver:
For Schduler services, run only on one master node at a time,
For Controll
temporary, you do not need to persist it to your hard disk, and you do not need to synchronize data across nodes. Store the heartbeat data in memory on the line, pacemaker is the main thing to do is this function. Pacemaker provides a simple memory-based key/value store, where the storage pattern is similar to Zookeeper,key maintained in the form of a directory, where value is the byte data.Distributed Cac
。Resource layer (Resource layer)第四和最高层是资源层。资源层包括一个或多??个资源代理(RA)。资源代理是一个程序,通常是一个shell脚本,包含启动,停止和监视某种服务(资源)。最常见的资源代理是LSB初始化脚本。然而,HeartBeat也支持更加灵活和强大的开放式集群架构资源代理API。提供心跳的代理被写入OCF规范。资源代理只由本地资源管理器调用。第三方可以在文件系统中定义自己的代理,整合自己的软件到集群中。3. Heartbeat 3.x Components
After the V3 version, the entire heartbeat project was functionally split and divided into different sub-projects to be developed separately. But the HA implementation principle and heartbeat2.x basically the same, the configuration is ba
MySQL uses Galera to do active/active clusters, while using pacemaker, because Galera MySQL uses the leadership of the election mechanism quorum, so the control node of at least three
RABBITMQ using mirrored queues, run in active/active mode
Stateful services such as neutron agents use pacemaker to do active/passive deployment
Stateless service front end plus haproxy, so stateless service is not de
Ciaj recently proposed an idea for automatically disabling a mobile phone system in a specific public place.
As we all know, mobile phone signals will affect many electronic devices. Therefore, it is strictly prohibited to use a mobile phone on the plane because it will affect the navigation system of the plane. It is also prohibited to use a mobile phone in the hospital ward, because the cell phone signal may affect the patient's pacemaker and eve
to run the same resource on multiple nodes. For example, webpage server or cluster file system.
The ability to run the same resource on multiple nodes in one of two different modes. For example, synchronize resources and targets.
Pacemaker does not need Distributed Lock management programs.
Configurable behavior when arbitration is lost or multiple partitions are formed.
Replace piranha with keepalived and haproxy
Red Hat Enterprise Linux 7.0Keepa
each executable process is allocated one piece. A single processor can run only one process at any given time. If the time slice or time limit (quantum) of the currently running process expires, the process can be switched. Time-sharing depends on scheduled interruption. Specifically, it is the well-known timer_interrupt interrupt service function in the arch/i386/kernel/time. c file we mentioned in the Interrupt Processing topic. Therefore, it is transparent to all processes and no additional
Apiserver high availability that need to be summarized here, and we've got some kind of apiserver service available here through Corosync + pacemaker software, This is because Apiserver is a stateless service that allows different nodes to exist at the same time. And Scheduler,controller-manager in the cluster can only be opened in one host, here we can start Controller-manager and scheduler just add--leader-elect=true Parameters can be started at th
detailed comparison of the two implementation methods and their respective application scenarios;4. LVS Persistent Connection Application environment theory and realization; Fw method realizes the affinity application of LVS;5, Write bash script to achieve the Realserver health status monitoring, to achieve realserver fault isolation and automatic re-launch functions;Highly Available service topics6, high-availability cluster principle and heartbeat, openais/corosync and other solution principl
performs a local execution of a resource and stops the CRM delivery. When a node fails, it is the DC through the PE (Policy engine) and TE (Implementation engine) to decide whether to rob the resource.The software that implements this layer's functionality is:1), Heartbeat v1: Comes with Explorer Haresources,haresources: Required configuration file, file name is Haresources2), Heartbeat v2: Bring your own resource Manager CRM,CRM: You need to run CRMD on each node. Configure interface: Command
:0txqueuelen:0 rxbytes:1112 (1.0kib) TXbytes:1112 (1.0kib) Node2 also need to do the same double-click Trust, the same operation, no longer demonstrated here2, configure the Epel source of the cluster softwareNode1[Email protected] ~]# cd/etc/yum.repos.d/[[email protected] yum.repos.d]# wget http://clusterlabs.org/rpm/epel-5/ Clusterlabs.repo [[email protected] yum.repos.d]# Yum install-y pacemaker CorosyncNode2[Email protected] ~]# cd/etc/yum.repos
IntroductionUnlike most of the recommended systems, the scene of the US reviews is due to the diversity of its business, making it difficult to accurately capture the user's point of interest or the User's real-time Intentions. And we recommend the scene will be with the User's interests, location, environment, time and other Changes. The recommendation system mainly faces the following challenges:
diversity of Business forms: in addition to the recommended merchant, we also based on d
The code basically comes from the light You can also add a normalization of the user similarity, and the effect will be better.The data set is 100,000 data of movielens.Links: Moivelens#Coding:utf-8ImportRandom,math fromoperatorImportItemgetterclassUserbasedcf:def __init__(self,traindatafile=none,testdatafile=none,splitor='\ t'): iftraindatafile!=None:self.train=self.loaddata (traindatafile, Splitor)iftestdatafile!=None:self.test=self.loaddata (testdatafile, splitor) Self.simimatrix={}
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