James Query

The appearance of MapReduce is to break through the limitations of the database. Tools such as Giraph, Hama and Impala are designed to break through the limits of MapReduce. 　　While the operation of the above scenarios is based on Hadoop, graphics, documents, columns, and other NoSQL databases are also an integral part of large data. 　　Which large data tool meets your needs? The problem is really not easy to answer in the context of the rapid growth in the number of solutions available today. Apache Hado ...

According to Science and technology blog http://www.aliyun.com/zixun/aggregation/6139.html ">mashable.com reported that the U.S. NBA and Stats LLC company announced a few days ago, 　　The 2013-2014 season will be fitted with a body-sensing tracking technique in all stadiums. 　　What about this cooperation? Stats's SPORTVU player tracking system includes 6 cameras and specialized software. This system will be installed in 30 NBA balls ...

I think the data Warehouse can help the enterprise to deal with the data problem in three ways: first, in an enterprise Data warehouse, you divide your data according to the subject area, which is often more stable. 　　Organizations that want to understand the "big data" concept need to make a choice between the traditional data warehouse concept and the existing Data Warehouse architecture, or the increasingly popular open source Hadoop distributed processing platform, or the combination of the two. Those who want to move from simple BI reports to deep data mining and predictive analytics ...

The fastest way to store a computer system is the ram traditionally used primarily as memory. As the access performance of the hard drive has deteriorated over the years, and the cost of RAM has been decreasing, many researchers have been exploring how to replace the hard disk with memory in recent years. As early as the 1980, David DeWitt and Garcia-molina and so on published a main memory database paper. Steven Robbins's article points out that the Turing Prize winner, Jim Gray, is more explicit about the idea that "memory will be a hard drive and the hard drive will become a tape."

Guide: While there are security issues, Hadoop is ready for large projects deployed in large enterprises. Hadoop, the top open source project for Apache, is mainly used to analyze large datasets, which are now widely used by internet companies such as ebay, Facebook, Yahoo, AOL and Twitter. Last month Microsoft, IBM and Oracle also embraced Hadoop. More and more companies have started to grope for Hadoop technology, in order to deal with blog, click the data brought by ...

The NBA is the originator of big data and the best practitioner. 　　The NBA detailed and meticulous data statistics, not only can provide a single player query work, can also compare two players, including two pairs of attack and defense performance, such as James Field can get 28 points, Kobe Bryant for 27 points, but when two people meet, Kobe Bryant field can get 30 points, James only 24 points. After nearly 30 years of accumulation and improvement, NBA data statistics and management more mature and rich, but also can provide including field efficiency, scoring area analysis. For example, the Chinese athlete Lin who swept the NBA in 2012 ...

"The key is not in what methods, but in being able to really solve problems using any available tool or method," said Forrester analyst James Kobielus in a blog about Big data. "In recent years, with the urgent sense of solving big data problems, many organizations have started to explore the data architects." 　　In short, traditional databases and business intelligence tools that they typically use to analyze enterprise data are no longer competent for large data-processing tasks. To understand this challenge, we must go back to 10 years ago: There were very few t ...

Facebook is the world's biggest social networking site, and its growth is driven by open source power. 　　James Pearce, the head of Open-source project, said that Facebook began with the first line of writing its own PHP code, starting with the MySQL INSERT statement, and that open source has been incorporated into the company's engineering culture. Facebook is not only open source, but also open source its internal projects, internal results feedback to the open source community, it can be said that this is a great company should be the attitude. By constantly open source yourself ...

Recently, Airbnb machine learning infrastructure has been improved, making the cost of deploying new machine learning models into production environments much lower. For example, our ML Infra team built a common feature library that allows users to apply more high-quality, filtered, reusable features to their models.

Big data may be the most hot word in the tech world and VC circles. It seems that internet companies, even traditional industry companies, that don't have much of a big data connection have no future. is a hot word, there must be a bubble. Under the bubble, some companies that are really creating and digging into big data values, especially startups, are not known. There are companies that may still be in stealth mode, and they are now busy finishing the final finishing touches that will make it possible to change the rules of the game. Many of these big data startups ' teams come from Google ...