Tag: testing

Feed: R-bloggers. Author: free range statistics - R. There was a flurry of activity in the last couple of days on Twitter and the blogosphere, most notably Thomas Lumley’s excellent Stats Chat, relating to whether there is a pro-government bias in surveys of New Zealand voting intention in the summer. As the analysis I’ve seen used my nzelect R package, this motivated me to update it for recent polls. The nzelect update nzelect hasn’t been updated on CRAN for some time, because about a year ago I made some major changes to the data model for the historical election results ... Read More

Feed: AWS Partner Network (APN) Blog. Author: Richard Elberger. Editor’s note: This is the second of a two-part series on the APN Blog. Read Part 1 >>By Johan Kraft, CEO at Percepio In a previous blog post, we learned how to get started with AWS IoT Core and Amazon FreeRTOS on the NXP OM40007 IoT kit using Percepio Tracealyzer for debugging support. In this post, we will dig deeper into Amazon FreeRTOS and take a closer look at the communication stack for AWS IoT Core. You will also learn how this communication can be analyzed using Percepio Tracealyzer, ensuring your system ... Read More

Feed: Planet MySQL; Author: RoseHosting; In this tutorial, we will show you how to install and improve the security of MySQL on Ubuntu 18.04. MySQL is one of the most popular and widely-used open-source relational database management systems. It is used for building web applications such as WordPress, Drupal, Joomla, and Magento, and is an important part of the LAMP/LEMP open-source web application software stacks. At the moment of writing this tutorial, the latest supported version from the official Ubuntu package repository is MySQL 5.7. Let’s get started. Requirements: For the purposes of this tutorial, we will be using an Ubuntu server ... Read More

Feed: AWS Partner Network (APN) Blog. Author: AWS Admin. By Bojana Dobran, Senior Marketing Specialist at phoenixNAPThe growing need for business agility has redefined IT at the organizational and infrastructure levels. Building an agile IT architecture that can quickly adapt to business needs and support dynamic teams has become a critical focus in most modern organizations. An agile infrastructure is fast, robust, and easily scalable. Its creation usually involves collaboration between NetOps, DevOps, and SecOps teams—all of whom need to ensure the infrastructure is capable of handling bandwidth-heavy workloads, delivering uninterrupted connectivity, and transferring data quickly and safely. As a ... Read More

Feed: Planet PostgreSQL. First off – not trying to kindle any flame wars here, just trying to broaden my (your) horizons a bit, gather some ideas (maybe I’m missing out on something cool, it’s the most used Open Source RDBMS after all) and to somewhat compare the two despite being a difficult thing to do correctly / objectively. Also I’m leaving aside here performance comparisons and looking at just the available features, general querying experience and documentation clarity as this is I guess most important for beginners. So just a list of points I made for myself, grouped in no ... Read More

Feed: Big Data Made Simple. Author: Baiju NT. Analytics Insight Magazine, a brand of Stravium Intelligence has named “The 10 Most Innovative Cyber Security Companies in 2019′ in its February issue.The magazine issue recognizes 10 companies offering state-of-the-art security services, combining the best in advanced technology and intelligence to respond and adapt quickly to cyber threats and potential attacks.Here’s a look at the top 10 companies selected in the list:1. NucleonFeaturing as the Cover Story and ‘Company of The Month’, Nucleon was founded in 2016 to revolutionize cyber intelligence technologies with the ultimate goal of enabling enterprises and governments to predict threats before ... Read More

Feed: Planet MySQL; Author: Severalnines; Migrating from Oracle to MySQL/Percona Server is not a trivial task. Although it is getting easier, especially with the arrival of MySQL 8.0 and Percona announced Percona Server for MySQL 8.0 GA. Aside from planning for your migration from Oracle to Percona Server, you must ensure that you understand the purpose and functionality for why it has to be Percona Server. This blog will focus on Migrating from Oracle to Percona Server as its specific target database of choice. There's a page in the Oracle website about SQL Developer Supplementary Information for MySQL Migrations which ... Read More

Feed: SAS Blogs. Author: Karen Prillwitz. “We have a data lake. Nowadays, who needs a data warehouse too? That’s totally antiquated. It’s an obsolete model.” I often hear this kind of sentiment in my consulting work with clients. Dynamic analytics and digitisation teams face what they see as antiquated systems that are in urgent need of an overhaul. Unfortunately, this often leads to confrontations with the guardians of the previous systems. Views and working methods collide, and so do those involved. Conflict, lack of respect and contempt are much more prevalent than anyone is prepared to admit. In some businesses, ... Read More

Feed: Featured Blog Posts - Data Science Central. Author: Capri Granville. This article is a solid introduction to statistical testing, for beginners, as well as a reference for practitioners. It includes numerous examples as well as illustrations and definitions for concepts such as rejecting the null hypothesis, one sample hypothesis testing, P-values, critical values, and Bayesian hypothesis testing. It has references to additional topics, such as  What is Ad Hoc Testing? What is a Rejection Region? What is a Two Tailed Test? How to Decide if a Hypothesis Test is a One Tailed Test or a Two Tailed Test. How to ... Read More

Feed: Liquid Web. Author: Jake Fellows; Organizations of all types and sizes use VMware virtualization, and quality managed services make VMware private cloud a cost-effective upgrade for many small and medium-sized businesses. VMware private cloud is a premium solution with particular benefits for a certain range of workloads. Popular uses include backups, disaster mitigation, test and development environments, devops, and handling sensitive or regulated data.Organizations considering deploying a private cloud or hybrid cloud solution should take their time and plan their environment carefully, as getting maximum value from any kind of architecture requires getting the details right. A managed service ... Read More