splitter combiner

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Mahout Project-based collaborative filtering algorithm source code Analysis (3)--rowsimilarityjob__ algorithm

set to 0, that is, not output. (2) Similaritymatrix By the analysis of (1) It is known that (2) the input is this: {102={106:0.14972506706560876,105:0.14328432723886902,104:0.12789210656028413,103:0.1975496259559987}, 103 ={106:0.1424339656566283,105:0.11208890297777215,104:0.14037600977966974}, 101={ 107:0.10275248635596666,106:0.1424339656566283,105:0.1158457425543559,104:0.16015261286229274,103:0.15548737703860027,102 : 0.14201473202245876}, 106={}, 107={}, 104={ 107:0.13472338607037426,

Hadoop face question finishing (I.)

collection of the small table in memory still does not hold, this time can use Bloomfiler to save space. The most common function of bloomfilter is to determine whether an element is in a set. Its two most important methods are: Add () and contains (). The biggest feature is that false negative is not present, that is, if contains () returns false, the element must not be in the collection, but there is a certain true negative, that is, if contains () returns True, the element may be in the col

Learn Hadoop--mapreduce principle together

encapsulated into 3, the map process has a memory buffer for processing data, the default is 100M, when the in-memory data reaches 80M, the background opens a process, lock 80M of space, the data is written to the remaining 20M space, while the 80M data overflow (spill) to disk. 4, in this phase involves the data partition partition, the sorting and the combiner, this is also the MapReduce optimization key point. Several partition have a few reduc

Java, NIO, AIO-2

withstand, frequent creation, destruction of threads also consumes system resources. 2. Camouflage Asynchronous Programming ModelA one-to-one TCP connection service is a waste of resources, and in order to improve this, you can use the thread pool to manage these threads and why it is pseudo-async, because there is no change in the thread-pool threads as well as on-the-go services. The use of thread pool knowledge can effectively control and constrain resources.Pseudo-Asynchronous IO programmin

Java, NIO, AIO-2

withstand, frequent creation, destruction of threads also consumes system resources. 2. Camouflage Asynchronous Programming ModelA one-to-one TCP connection service is a waste of resources, and in order to improve this, you can use the thread pool to manage these threads and why it is pseudo-async, because there is no change in the thread-pool threads as well as on-the-go services. The use of thread pool knowledge can effectively control and constrain resources.Pseudo-Asynchronous IO programmin

The usage of SplitContainer in C#winfrom

(1). SplitContainer cannot be clicked directly by the mouse, and can be selected by right-clicking and selecting SplitContainer.(2). The issplitterfixed property is used to set whether the splitter can be moved.(3). The Fixedpanel property is set to Panel1 (or Panel2) so that the size of the Panel1 panel (or the PANEL2 panel) is not changed by default when the form is resized, and if set to none, The Panel1 panel and the Panel2 panel are scaled propor

Example of data processing programming from the zero-learning Python series (II.)

() #从文件中逐行读取字符 Data_list=data.strip (). Split (', ') #将字符间的空格清除后, separating the characters with commas return ({ "name": Data_list.pop (0), "Date_of_birth": Data_list.pop (0), "Times": Str (sorted (Set ([Modify_time_format (s) for s in Data_list]) [0:3]) }) #使用字典将关联的姓名, date of birth, time key and value are stored and returned except IOError as Ioerr: Print (' File Error ' + str (IOERR) ) #异常处理, print error return (None) #定义函数modify_time_format将所有文件中的时分表达方式统一为 "minute. Seconds" def m

FTTH technology comparison and application strategies of optical fiber access technology

distribution, its main characteristics are: Optical Line Terminal-OLT) placed in the telecom operator center machine room, no source Optical Splitter placed Splitter) optical Network Unit-ONU), the Optical Network Unit of the user end ). The distance between the OLT and The ONU is equal to the distance from the telecom operator's central data center to the user. The distance between the OLT and The ONU is

Detailed explanation of application policies of optical fiber access technology

business: telecom operators are not allowed to operate CATV services, and this situation cannot be changed for quite some time in the future. 2. Selection of FTTH Access Technology in China1) Passive Optical Network PON) problems in FTTH application in China ideal Passive Optical Network-PON) Network structure and distribution, its main features are: optical Line Terminal -- OLT) is placed in the telecom operator's central data center, and the passive Optical

Select an appropriate optical fiber connection method to save FTTP costs

isolation of FTTP networks poses two major challenges to technicians. First, once the OTDR tracking signal encounters a splitter in the fdt, it is difficult to transmit the signal from CO. Therefore, the technician must access the network at the FDT. If all FDT connection points have been fused, the weld line needs to be opened by the welder. After tracking, the splitter must be refused to the allocated op

QT4 Chinese garbled Solution

mode as treeView2829 QObject: connect ( treeView, SIGNAL (doubleClicked (QModelIndex), listView, SLOT (setRootIndex (QModelIndex); // when double-clicking a tree node, expand all the files in the selected directory in the form of list30 QObject: connect ( treeView, SIGNAL (doubleClicked (QModelIndex), tableView, SLOT (setRootIndex (QModelIndex )));3132 QSplitter * splitter = new QSplitter;33 splitter-> a

MFC split window and data exchange between them

Source code:Http://download.csdn.net/detail/nuptboyzhb/4221531 Csplitterwnd class The csplitterwnd class provides a splitter window, which contains multiple panes. The pane is usually an application-specificCviewDerived object, but it can also be any cwnd object with an appropriate subwindow ID. A csplitterwnd object is usually embedded into a cframewnd or javasichildwnd parent object. Follow these steps to create a csplitterwnd object: 1.

Concatenates list elements into strings separated by delimiters

Code Code highlighting produced by Actipro CodeHighlighter (freeware)http://www.CodeHighlighter.com/-->Public static class EnumerableExtension { /// /// Concatenates the list elements into strings separated by splitter /// /// /// Concatenated string: /// /// Attributes of the spliced object: /// /// Spliced enumerated values: /// /// Splicing enumeration Name: /// /// /// /// /// /// /// Public static string Montage { StringBuilder result = new Stri

Android Multimedia Framework opencore code reading

file of the pvplayer library file. No source file exists.* Pvauthor: the Android. mk file of the pvauthor library file. No source file exists.* Tools_v2: compilation tool and some registrable modules. Definition and initialization of SplitterTake the wav splitter as an example. The fileformats directory contains the pvwavfileparser. cpp file for parsing the wav file format. In the nodes directoryPvmf_wavffparser_factory.cpp, pvmf_wavffparser_node.h,P

Video file h264 encoding and decoding base class 2 using DirectShow

): (m_ndecodectl.bcompleted = true );Break;Case ec_userabort: // An error occurred while runningCase ec_errorabort:Terminiateprogress (bflags );Bflags? (M_nencodectl.bcompleted = true): (m_ndecodectl.bcompleted = true );Break;Default:Break;}Pevent-> freeeventparams (eventcode, eventparam1, eventparam2 );}}} Int cencode: _ ishpolicencoded (cstring strfilename){Igraphbuilder * pgraph = NULL;Ibasefilter * psrc = NULL;Ibasefilter * pavisplitter = NULL;Hresult hR = e_fail;Int nresult =-1;Do{/********

Spark Mllib algorithm invoke display platform and its implementation process

HDFs in the CDH virtual machine, which makes it easy for the spark algorithm to invoke the project invocation (as specified below); 3.1.2 A single algorithm implementation (encapsulation/testing), such as for logistic regression 1. For logistic regression, the encapsulated code is as follows:Code Listing 3-1 Logistic regression algorithm encapsulation (Scala)Package Com.fz.classificationimport Com.fz.util.Utilsimport org.apache.spark.mllib.classification. {LOGISTICREGRESSIONWITHSGD, Logisticreg

Reactor/proactor model Overview

Both reactor and preactor are Io multiplexing modes. Generally, the I/O multiplexing mechanism depends on an event multiplexing (EventDemultiplexer ). The splitter object can separate the I/O events from the event source and distribute them to the corresponding read/write event processor (EventHandler ). The developer registers the event to be processed and its event processor (or callback function) in advance ). The reactor mode adopts synchronous Io

Some common attributes of segmentedControl in IOS, segmentedcontrol

Some common attributes of segmentedControl in IOS, segmentedcontrol # Pragma mark-create different slots // Initialization method: the input array can be a string or an image array of the UIImage object UISegmentedControl * mysegmented = [[UISegmentedControl alloc] initWithItems: @ [@ "Left", @ "Middle", @ "right"]; Mysegmented. frame = CGRectMake (50,200, kScreenWidth-100, 40 ); [Self. view addSubview: mysegmented]; // Method 2 UISegmentedControl * mysegmented2 = [[UISegmentedControl alloc] in

The latest omnipotent Video Decoder ACE Mega Codec Pack Professional 6.03

-MPEG Layer-2 Audio Decoder 1.00-MPEG Layer-3 Audio Decoder 1.9.0.0311-MPEG-2 Splitter 6.5.2600.2096-Multiple VOB Source 1.0-MOD Audio Decoder-Monkey Audio Decoder-MusePack Audio Decoder 1.0.0.3-QuickTime Video Decoder 6.5.1-RealMedia Video Decoder 6.0.9.1875-ReClock Filter 1.4.0.0-Time Manager Filter-TrueMotion2 Video Decoder 2.0.6.2b-WAV-Destination Filter-Fraunhofer MPEG-2 Audio Decoder 3.0020.804-Fraunhofer MPEG-2 Video Decoder 1.00.000‧ 3ivx-3ivx

Optical fiber FTTH access technical standards and deployment Solutions

by some European and American operators as an ideal technology for broadband access network services. The EPON solution has good scalability and can implement multiple fiber-optic entry-to-entry modes. EPON (Ethernet Passive Optical Network) is also a new type of optical fiber access network technology. The total bandwidth for effective uplink transmission is 1000 Mbit/s. It adopts point-to-point structure and passive optical fiber transmission, it can provide a variety of services over Etherne

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