Data Dictionary Metadata

Eckerson Wayne, a consultant, says Hadoop provides a platform where dynamic environmental monitoring provides more convenient control for individual data analysis and Spreadmart (report marts) established by business users, while also allowing them to have local self-service analysis. Spreadmart is the abbreviation of ToolStrip Data mart, in the field of business intelligence, the different spreadsheets that multiple individuals and teams create. 　　Because the data is inconsistent, it brings a lot of trouble to the business. ...

Eckerson Wayne, a consultant, says Hadoop provides a platform for easier control of individual data analysis and Spreadmart (report marts) built by business users, while giving them a place to perform self-service analysis. Spreadmart is the abbreviation of ToolStrip Data mart, in the field of business intelligence, refers to the different power created by many individuals and teams ...

The greatest fascination with large data is the new business value that comes from technical analysis and excavation. SQL on Hadoop is a critical direction. CSDN Cloud specifically invited Liang to write this article, to the 7 of the latest technology to do in-depth elaboration. The article is longer, but I believe there must be a harvest. December 5, 2013-6th, "application-driven architecture and technology" as the theme of the seventh session of China Large Data technology conference (DA data Marvell Conference 2013,BDTC 2013) before the meeting, ...

Introduction: It is well known that R is unparalleled in solving statistical problems. But R is slow at data speeds up to 2G, creating a solution that runs distributed algorithms in conjunction with Hadoop, but is there a team that uses solutions like python + Hadoop? R Such origins in the statistical computer package and Hadoop combination will not be a problem? The answer from the king of Frank: Because they do not understand the characteristics of R and Hadoop application scenarios, just ...

HBase is a distributed, column-oriented, open source database based on Google's article "Bigtable: A Distributed Storage System for Structured Data" by Fay Chang. Just as Bigtable takes advantage of the distributed data storage provided by Google's File System, HBase provides Bigtable-like capabilities over Hadoop. HBase Implements Bigtable Papers on Columns ...

Using Lzo compression algorithms in Hadoop reduces the size of the data and the disk read and write time of the data, and Lzo is based on block chunking so that he allows the data to be decomposed into chunk, which is handled in parallel by Hadoop. 　　This feature allows Lzo to become a very handy compression format for Hadoop. Lzo itself is not splitable, so when the data is in text format, the data compressed using Lzo as the job input is a file as a map. But s ...

The interaction between the user and the product can be seen as a two-way linear process, the input letter "D" on the phone and the interface output display is a short interaction, the completion of a shopping payment is long interactive, this is the use of a product process. The user experience is about the whole process of using the product, including the performance of the excellent user experience from installation to the time axis of abandonment, and the benign cycle of interaction. Simply take the recommendation engine as an example to illustrate how each element works on the timeline: Initialize. Based on the group characteristics and the relevance of users, similar user preferences of other items are recommended to the user. ...