data analysis in research

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Storm log analysis research and its real-time architecture

Storm is developed using the Clojure language, but you can write applications in any language in storm, all you need is an adapter that connects to the storm's schema. There are already adapters for Scala, JRuby, Perl, and PHP, but there are also structured Query language adapters that support streaming to the Storm topology.   Key properties of StormSome of the features of Storm's implementation determine its performance and reliability. Storm uses ZeroMQ to deliver messages, w

Caffe source code analysis -- math_functions.cu code Research

Use a macro to define cuda_kernel_loop. In common. HPP. # DefineCuda_kernel_loop (I, n )\ For(IntI = blockidx. x * blockdim. x + threadidx. X ;\ I I + = blockdim. x * griddim. X) First, let's look at the design of the dimensions of the threads and thread blocks obtained by caffe pipeline, We can also see from common. HPP Caffe_cuda_num_threads Caffe_get_blocks(ConstIntN) It is obviously one-dimensional. Check the format of cuda_kernel_loop, For(IntI = blockidx. x * blockdim. x + threadidx.

Dvbbs7.1 SP1 SQL version savepost.asp injection Vulnerability analysis, utilization and prevention _ vulnerability research

I. OverviewVulnerability Description: Http://coolersky.com/leak/programme/bbs/2006/0515/515.html A few days ago to listen to Hak_ban said someone put dvbbs7 a leak to release out, has never had time to see, the afternoon with Edward asked for a link to look at: http://www.eviloctal.com/forum/read.php?tid=22074 This site is: Http://coolersky.com/articles/hack/analysis/programme/20

A brief analysis of the security status of a network game in China-vulnerability research

; Mac of 218.25.xxx.xxx Spoof 218.25.10.129:mac of 218.25.xxx.xxx ===> Mac of 218.25.xxx.xxx Begin to Sniffer ... 61.189.30.xxx (35701)->218.25.10.xxx (7100) #6 18.25.10.xxx (7100) #6 18.25.10.xxx (7100) #7 100) #7 (7100) #1 100) #1 #5 #5 100) #2 100) ...... The following results omit N more. And then I'm sniffing out other ports. Discovery can sniff the game packets, and the game server sends and receives all the data, this is the whole game serv

Research on the memory cost of huge data objects in PHP

First of all, please do not misunderstand, not I want to publish what the research results on this issue, but I would like to ask you to help me to analyze this problem together:) Describe the simplified issue background: In a PHP-implemented Web site, all program files contain a common file common.php at the beginning. Now, due to business needs, a "mega" data Object (an array object containing about 500

Research on the vulnerability of typical intrusion log analysis

1. FTP Log Analysis The FTP and WWW logs, by default, generate a log file every day that contains all the records for that day, usually the name of ex (year) (month) (date). For example, the ex040419, the April 19, 2004-generated log, can be opened directly with Notepad, ordinary intrusion behavior of the log is generally like this: #Software: Microsoft Internet Information Services 5.0 (Microsoft IIS5.0) #Version: 1.0 (Version 1.0) #Date: 20040419 03

A data research tool for simple linear regression in PHP

assumption that the average value is the best predictor can be avoided, and the simple linear model can be assured that the data is well matched. (For more information on calculating the probability of T statistics, see part 1th.) ) Go back and discuss the statistical decision-making process. It tells you when not to take an invalid hypothesis, but does not tell you whether to accept the optional hypothesis. In the

Research and analysis of MySQL Group replication

Three modes of MySQL replicationMySQL currently has three replication modes: asynchronous mode, semi-synchronous mode, and group copy mode, first understand how the three modes work.1. MySQL Asynchronous Replication (asynchronous replication)Asynchronous replication is the oldest and most currently used replication mode for MySQL, and asynchronous replication provides a simple master-slave replication method that consists of a master repository (master) and a standby (one, or more), where the ma

Research and exploration on "Turn" Scrapy (iii)--scrapy core architecture and code operation analysis

Scheduler (Scheduler).3. The engine requests the next URL to be crawled to the scheduler.4. The scheduler returns the next URL to crawl to the engine, and the engine forwards the URL to the downloader (Downloader) by downloading the middleware (request) direction.5. Once the page has been downloaded, the downloader generates a response of the page and sends it to the engine via the download middleware (return (response) direction).6. The engine receives the response from the downloader and send

The latest attack technology detail analysis for Bluetooth PIN code-Vulnerability Research

Note: This article is only to address the latest attack technology for Bluetooth PIN to remind everyone to guard against, and there is no other purpose. No one may use the techniques described in this article to do anything illegal. Recently, a number of websites at home and abroad have published a news about the latest attack technology for Bluetooth PIN: By forcing two Bluetooth devices to be paired and listening for pairing information, an attacker can crack a 4-bit (decimal) pin in 0.063 se

Spark Release Notes 10:spark streaming source code interpretation flow data receiving and full life cycle thorough research and thinking

, because receiver is started by Receiversupervisor, In turn, receiver will store data via Receiversupervisor after receiving the data.The stored meta-data is then reported to the driver side.V: Is driver, manipulating metadata through metadata pointers, manipulating the specific data content on other machines based on the pointer address, and showing the results

Data analysis and modeling _ Data analysis

very extensive, such as automobiles, washing shampoo, beverages, fast food, cigarettes and national, corporate brands, party candidates, etc. The MDS analysis provides information about consumer perceptions and preferences for market research in the field of market research, which focuses on consumer attitudes, measuring consumer perceptions and preferences. Mul

Research on the memory cost of huge data objects in PHP

Research on the memory cost of huge data objects in PHP First of all, please do not misunderstand, not I want to publish what the research results on this issue, but I would like to ask you to help me to analyze this problem together:) describe the simplified background of the issue:In a PHP-implemented Web site, all program files contain a common file common.p

Data Status Research outline

Data Status Research outline1. How many types of data are there currently? What platform is it generated from? What is the storage medium? Data levels for all types of data?2. Current status of basic dataIs there a master data sys

Dplot. v2.3.4.4 1cd dplot is suitable for Chart Software of scientific research and engineering technology. Used to display 2D and 3D data.

inversion software Geotomo. res3dinvx64. Pro. v3.14.20 1cdEs2dinv is a two-dimensional resistivity and IP address inversion software. In addition to normal ground surface measurement, it also supports underwater and cross-well measurement. Except standard Wenner(Alpha, beta, gamma), Wenner-Schlumberger, and pole dipoles, inline dipoles, and equator dipolesIt also supports non-traditional electrode arrangement. The plan supports measurement lines of up to 16000 electrodes and 27000

Android research-android2.3.7 source code structure analysis [zz]

Address: http://www.oschina.net/question/234345_44376 ThisArticleThe introduction is good, comprehensive, and easy to read! PairAndoridDuring system analysis or system function customization, we often need to spend a lot of time in many files to locate the desired part. To reduce this boring and unavoidable work2.3.7The source code structure of the version is analyzed. I hope it will help my friends who have just joined the android army.

Baidu Research and Development pen question analysis: Design a system to deal with the problem of word collocation

Topic: Design a system to deal with the problem of word collocation, for example, China and the people can match, then the Chinese people of China are effective. Requirements: * The number of inquiries per second of the system may be thousands of times; * The order of magnitude of the words is 10W; * Each word can be paired with a 1W word at most When the user enters the Chinese people, asks to return the information related to this collocation phrase.

Research on data mining technology based on e-commerce

1 Introduction With the increasing popularity of the Internet, various forms of information generation and collection have led to the explosion. The competitive trend of modern society requires real-time and deep analysis of this information, although there is now a more powerful information storage and retrieval system. But users are becoming more and more difficult to analyze and use the information they have. How to effectively organize and utiliz

Based on C #. NET dynamic Word document generation and data filling research

). ToString (). With these steps we can get the selected content in the open Word document in memory and apply it to where we want it.4 Querying and statistics with SQL statements and writing results to a Word documentSQL statement has, integrated unified, set data definition, data manipulation, data management functions in one, language style unified, can indepe

Data analysis and presentation-Pandas data feature analysis and data analysis pandas

Data analysis and presentation-Pandas data feature analysis and data analysis pandasSequence of Pandas data feature analysis

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