Apache 2.2 2

Commons Math is http://www.aliyun.com/zixun/aggregation/14417.html ">apache a lightweight self-packaging mathematical and statistical computational method package that contains most commonly used numerical algorithms. Version 2.2 is primarily a maintenance release, but it also contains new features and enhancements, recommendation 2.1 user upgrades, and some minor changes on the API and 2.1 versions. Commons Math is ...

The Apache Jackrabbit is an implementation of a content Storage specification (JCR) that complies fully with the Java API version. is an open source implementation of JSR-170 provided by http://www.aliyun.com/zixun/aggregation/14417.html ">apache Foundation". Update Description: BUG fixes [JCR-2888] Namespace Co ...

1. Kyoto Buffer protocal Buffer is a library of Google Open source for data interchange, often used for cross-language data access, and the role is generally serialized/deserialized for objects. Another similar open source software is Facebook open source Thrift, their two biggest difference is that thrift provides the function of automatically generating RPC and protocal buffer needs to implement itself, but protocal buffer one advantage is its preface ...

Based on the Apache Hadoop 2.2 released last month, concurrent, a large data application platform expert, today unveiled a new version of cascading--'s large data application framework. 　　Concurrent also launched cascading lingual 1.0, an Open-source project that provides a full ANSI SQL interface. Cascading is a stand-alone Open-source Java application framework designed as an alternative API for MapReduce. ...

Hive is a very open system, many of which support user customization, including: File format: Text file,sequence file in memory format: Java integer/string, Hadoop intwritable/text User-supplied Map/reduce script: In any language, use Stdin/stdout to transmit data user-defined functions: Substr, Trim, 1–1 user-defined poly ...

Hadoop FAQ 1. What is Hadoop? Hadoop is a distributed computing platform written in Java. It incorporates features errors to those of the Google File System and of MapReduce. For some details, ...

Flume-based Log collection system (i) architecture and Design Issues Guide: 1. Flume-ng and scribe contrast, flume-ng advantage in where? 2. What questions should be considered in architecture design? 3.Agent crash how to solve? Does 4.Collector crash affect? What are the 5.flume-ng reliability (reliability) measures? The log collection system in the United States is responsible for the collection of all business logs from the United States Regiment and to the Hadoop platform respectively ...

The intermediary transaction SEO diagnoses Taobao guest Cloud host technology Hall One, the goal: enhances the website page in the search engine in Google, the Baidu, the Yahoo searches the result ranking, enhances obtains from the search engine the traffic. Second, optimize the work of several aspects 2.1 optimize the whole station net ...

The intermediary transaction SEO diagnoses Taobao guest Cloud host technology Hall One, the goal: enhances the website page in the search engine in Google, the Baidu, the Yahoo searches the result ranking, enhances obtains from the search engine the traffic. 　　Second, optimize the work of several aspects 2.1 optimize the entire website, in accordance with the level of the page template, theme templates, channel templates, homepage template order modification; 　　By the channel editor and technical engineers to complete 2.2 optimization of outbound cooperation (friendship) connection; 2.3 Optimized and channel edited by channel ...

Big Data successfully predicted the U.S. election, "big data" does not really care who will be elected to the next president of the United States. But all the data show that political scientists and others are concerned that Obama is more likely to win re-election. This success prediction shows the powerful energy of large data. The statistical model has been watching the hot topics (or even arguments) led by the New York Times FiveThirtyEight bloggers and statisticians Nate Silver over the past few weeks. Silver has become the focus of this controversy, in ...