Boost Framework

Http://www.aliyun.com/zixun/aggregation/14223.html "> Application system, the log is an indispensable important part of all the application of error information should be able to find in the log file, 　　Some application system log may be very small, some large application system log is quite large, while the log file must be user-friendly and search, to have a high performance, otherwise it will affect the performance of the application system. Because the log usually involves I.

Algorithms in Machine Learning (1) - Random Forest and GBDT Based on Decision Tree Model Combination. Decision Tree This algorithm has many good features, such as training time complexity is low, the prediction process is relatively fast, the model is easy to display (easy to get the decision tree made of pictures) and so on. But at the same time, the single decision tree has some bad points, such as easy over-fitting, although there are some ways, such as pruning can reduce this situation, but not enough. Model combinations (say Boosting, Bagging, etc.) are related to decision trees ...

Zhang Fubo: The following part of the forum is mainly four guests, talk about cloud practice. Beijing First Letter Group is the Beijing government's integration company, mainly responsible for the capital window of the construction, they are also in the domestic, in the government industry earlier in a company, as the first letter Group Technical Support Center General Manager Zhang Ninglai for us to do the report. Zhang: Good afternoon, we have just introduced, I am from Beijing First Letter Development Co., Ltd., I bring today is the result of our practice in cloud computing technology these years. Today is mainly divided into three parts, we mainly do is the field of e-government applications, we are mainly ...

The McKinsey Global Research Institute today released the digital transformation of China: The impact of the Internet on Productivity and growth (click to download the full report of PDF), the report points out that in 2013, China's Internet users continued to grow, the Internet is fundamentally restructuring the Chinese way of life. The following is a summary of the report: A digital revolution is surging in China. In 2013, the total number of active smart devices in China increased from 380 million to 700 million units. The same year November 11, "Singles Day" day, online shopping platform Taobao and the cat's sales of more than 36.2 billion yuan ...

Points of incident May 25, 2009, the State Council forwards the development and Reform Commission on the 2009 to deepen the work of the economic restructuring of the notice notice a total of 13 points, which related to energy conservation and environmental protection are several.　　Fourth: Vigorously promote the resources of product prices and energy conservation and environmental reform, and strive to change the way of development. Nineth: Speed up the rationalization of environmental tax system, study the introduction of environmental taxes first, from the fourth point of view, the State is also strengthening the system and system construction of energy conservation and environmental protection of the promotion of the fourth system to promote energy conservation and environmental protection, basically in line with our previous expectations. ...

July 13 Morning News, the Korean government and the International Monetary Fund International High-level Meeting July 2010 12 to 13th in South Korea's Datian Convention and Exhibition Center. The theme of the conference was "Asia in the 21st century: The Road to the future".　　Nobel laureate Michael Spence said at the meeting that the biggest challenge facing the United States was underemployment, and suggested vigorously promoting capital-intensive industries to boost employment. Michael Spence says the U.S. is still the world's largest single economy, and US growth is vital to the global economy. At present the United States ...

Spark first issued by Databricks, financing 33 million dollars; Hadoop is again mapr $110 million trillion in financing to boost its growth in the fierce market competition. In the future large data processing, spark will simplify the existing pipeline processing, integration of a variety of functions, making data processing faster, more convenient and more flexible; Hadoop will also read and write large data in a faster, simpler way. The huge amount of financing will promote the development of spark and Hadoop, how they will be based on the future of the big ...

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 ...

Cloudera's idea of Hadoop as an enterprise data hub is bold, but the reality is quite different. 　　The Hadoop distance has a long way to go before other big data solutions are eclipsed. When you have a hammer big enough, everything looks like nails. This is one of the many potential problems that Hadoop 2.0 faces. For now, the biggest concern for developers and end-users is that Hadoop 2.0 has massively modified the framework for large data processing. Cloudera plans to build Hadoop 2.0 ...

Cloudera's idea of Hadoop as an enterprise data hub is bold, but the reality is quite different. 　　The Hadoop distance has a long way to go before other big data solutions are eclipsed. When you have a hammer big enough, everything looks like nails. This is one of the many potential problems that Hadoop 2.0 faces. For now, the biggest concern for developers and end-users is that Hadoop 2.0 has massively modified the framework for large data processing. Cloudera plans to build Hadoop 2.0 ...