To use Hadoop, data consolidation is critical and hbase is widely used. In general, you need to transfer data from existing types of databases or data files to HBase for different scenario patterns. The common approach is to use the Put method in the HBase API, to use the HBase Bulk Load tool, and to use a custom mapreduce job. The book "HBase Administration Cookbook" has a detailed description of these three ways, by Imp ...
Pyswisseph is a python extended astrodienst Swiss ephemeris C library. The purpose of this extension is to achieve very precise astronomical computations, astrology. Pyswisseph 1.77.00-0 This version has been upgraded Swisseph to 1.77.00, adding CMake to build system files and fixing bugs. Use example: >>> import Swisseph as SWE>>&G ...
PageRank algorithm PageRank algorithm is Google once Shong "leaning against the Sky Sword", The algorithm by Larry Page and http://www.aliyun.com/zixun/aggregation/16959.html "> Sergey Brin invented at Stanford University, the paper download: The PageRank citation ranking:bringing order to the ...
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 ...
This article will introduce some practical examples using IPython and pandas for investment analysis and http://www.aliyun.com/zixun/aggregation/10341.html "> Statistical analysis." Let's do a common analysis and you may be able to do it yourself. If you want to analyze stock performance, you can: find a stock in the Yahoo financial zone. Download historical data and save it in CSV file format. Will be CSV ...
For canopy input data needs to be in the form of sequential files, while ensuring Key:text, http://www.aliyun.com/zixun/aggregation/9541.html "> Value:vectorwritable. Last night prepared to use a simple Java program to get ready to input data, but always will be a problem, last night's problem "can not find the file" for the moment has not found the reason. In fact, if just to get input data that ...
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.
The author of this article will introduce some of the leading cloud computing platforms and provide guidance on use cases that these cloud platforms can handle. Platform as a service (PaaS) is often considered to be one of the three major cloud computing service delivery models, and the other two are infrastructure, service and software. It accelerates cloud application development, provides managed infrastructure, simple and flexible resource allocation, and rich tools and services to help achieve efficient code and Run-time performance. However, the term hides the broad diversity of the cloud platform. Coarse look, windows&r ...
This article describes how to build a virtual application pattern that implements the automatic extension of the http://www.aliyun.com/zixun/aggregation/12423.html "> virtual system Pattern Instance nodes." This technology utilizes virtual application mode policies, monitoring frameworks, and virtual system patterns to clone APIs. The virtual system mode (VSP) model defines the cloud workload as a middleware mirroring topology. The VSP middleware workload topology can have one or more virtual mirrors ...
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