Big Data

Recently, I spent a few days reading Schönberger's book "Big Data age". The overall feeling is that the author has objectively expressed his point of view, both sides of this article discuss in depth. Before I bought a book, I read comments from

Developed by Intel Labs, graphbuilder is the first scalable open-source Java library for big data, big datasets can be built into graphs-a network structure diagram that reflects the relationship between data, helping scientists or data analysts in

When writing a web service, you must consider the transmission speed. You must compress and transfer large data files or images, and decompress them on the client to reduce the transmission time! Below are the main Code : 1 // Server: 2

Http://www.javait.org /? P = 877 Package COM. test. bigdatatodb; import javax. swing. jframe; import javax. swing. jbutton; import javax. swing. imageicon; import javax. swing. jlabel; import javax. swing. jtextarea; import javax. swing. jtextfield;

When using poi technology to read a large amount of Excel Data, there will always be a memory overflow. I have found many ways on the Internet, which cannot be better solved in many ways. Finally, I found a better solution. After modifying the JVM,

Background: In the early days of Linux, the disk size was still MB, and the size of the file system block was only 1 kb to 4 kb. At the time of writing this article, although the TB-level hard disk has recently increased a little price, it does not

Nonsense: What am I doing? After adjusting the maximum performance measured by iometer and program for raid, you can choose to provision the appropriate file system. To achieve better performance, we are currently concerned with ext4 and

I haven't released my small exploration for a long time, but my exploration has not stopped. This article mainly introduces how to set up the environment for the new features of the ext4 file system, and how to use the new features of ext4. 1. New

Introduction to OpenSSL-related big data computing functions 1. initialize the Function   Bignum * bn_new (void); generates a bignum structure.   Void bn_free (bignum * A); release a bignum structure. After the release, a = NULL;   Void bn_init

First, define two integer Arrays:Int FAC [1000]; // set to 1000 bits for the moment. I call it a "result array"Int add [1000]; // I call it a carry array" The functions of the two arrays are described as follows: 1. FAC [1, 1000]For example, if the

Some netizens asked what is the relationship between cloud computing, big data, databases, and Data Warehouses. Here I will briefly explain my understanding: First, let's take a brief look at the concepts of cloud computing and big data. 1) cloud

1. libfm Project home: http://www.libfm.org/ 2. svdfeature Project home: http://apex.sjtu.edu.cn/apex_wiki/svdfeature 3. libsvm and liblinear Libsvm project home page: http://www.csie.ntu.edu.tw /~ Cjlin/libsvm/ Liblinear project home page: http://

1 Preface For a long time, I have always asked myself what I want to learn and whether it will help my current job? Yes, there are too many new things in the computer industry. If I talk about them all, I am also confused. It must be irrational and

Package arrays. file; Import java. Io. bufferedreader;Import java. Io. bufferedwriter;Import java. Io. filenotfoundexception;Import java. Io. filereader;Import java. Io. filewriter;Import java. Io. ioexception;Import java. util. collections;Import

Today, I suddenly saw the big number questions on OJ, because I learned a little big number knowledge. Decisive 6 questions ...... Is very basic. It's just a matter of practice. What I learned is only the basic operations of some big data classes. I

Datasnap can directly pass and return parameters of the tstream type, which is very convenient. However, many people find that the job is abnormal when the size is slightly larger. Datasnap's default cache size is 32 K. Therefore, if the stream size

Scenario: After the system runs in the formal environment, it finds out that OOM (outofmemory) often occurs. After using windbg dump a few memories, it finds that many cache objects cannot be recycled. [a new description of the analysis process ],

I recently read a new big data article in programmer magazine, which is very well summarized. In order to help me find all the content in it, streamline it and write it down. This article mainly involves the following aspects:Data transmission, data

To continue with my dream, yongyou's customer base is so large, but it's only big. How to make full use of such a large customer base is also a good direction for development. It's also a good way to explore the value of customers in depth, at the

In. Net 4.0, there is a method that encapsulates large numbers of operations, and the efficiency is super fast.   BigInteger a = BigInteger.Parse("124548787123123123335723122"); BigInteger b = BigInteger.Parse("78521324874522222222222222