Tag: part

Feed: Blog – ArangoDB. Author: Claudius Weinberger. We are super excited to share the great news of two highly-experienced minds joining team ArangoDB to shape and grow the multi-model vision with us. Matt Ekstrom is an accomplished enterprise sales leader and joins ArangoDB as Chief Revenue Officer. He brings over 20 years of sales and leadership experience with him and will lead our global sales efforts from San Francisco. Our new Head of Engineering & Machine Learning is Jörg Schad who brings nearly a decade of experience of researching, designing and developing distributed systems and machine learning pipelines to our ... Read More

Feed: R-bloggers. Author: R Views. [This article was first published on R Views, and kindly contributed to R-bloggers]. (You can report issue about the content on this page here) Want to share your content on R-bloggers? click here if you have a blog, or here if you don't. In a previous post, we explored the dividend history of stocks included in the SP500, and we followed that with exploring the dividend history of some NASDAQ tickers. Today’s post is a short continuation of that tech dividend theme, with the aim of demonstrating how we can take our previous work and ... Read More

Feed: R-bloggers. Author: Jan Fischer. A major problem arises when comparing forecasting methods and models across different time series. This is a challenge we regularly face at STATWORX. Unit dependent measures like the MAE (Mean Absolute Error) and the RMSE (Root Mean Squared Error) turn out to be unsuitable and hardly helpful if the time series is measured in different units. However, if this is not the case, both measures provide valuable information. The MAE is perfectly interpretable as it embodies the average absolute deviation from the actual values. The RMSE, on the other hand, is not that easy to ... Read More

Feed: Planet PostgreSQL. Windowing functions and analytics have been around for quite some time and many people already make use of this awesome stuff in the PostgreSQL world. Timeseries  are an especially important area in this context. However, not all features have been widely adopted and thus many developers have to implement functionality at the application level in a painful way instead of just using some of the more advanced SQL techniques.The idea of this blog is to demonstrate some of the advanced stuff so that more people out there can make use of PostgreSQL’s true power.Preparing data for analyticsFor ... Read More

Feed: Planet MySQL; Author: Severalnines; Complex, inflexible architectures, redundancy and out-of-date technology, are common problems for companies facing data to cloud migration.  We look to the “clouds,” hoping that we will find there a magic solution to improve operational speed and performance, better workload and scalability, less prone and less complicated architectures. We hope to make our database administrator's life more comfortable. But is it really always a case?  As more enterprises are moving to the cloud, the hybrid model is actually becoming more popular. The hybrid model is seen as a safe model for many businesses.  In fact, it's ... Read More

Feed: Planet MySQL; Author: Percona Community; Geoff Winans  | August 14, 2019 |  Posted In: MariaDB, MySQL, ToolsIn my roles as a DBA at various companies, I generally found the tooling to be quite lacking. Everything from metrics collection, alerting, backup management; they were either missing, incomplete or implemented poorly. DBA-Tools was born from a desire to build backup tools that supported my needs in smaller/non-cloud environments. As BASH is easily the most common shell available out there on systems running MySQL® or MariaDB®, it was an easy choice.How DBA-Tools came to beWhile rebuilding my home-lab two years ago, I decided I ... Read More

Feed: Planet PostgreSQL. Recently, I did some work with Sawada-san on the TDE. So I studied on the encryption algorithm. So far, I study five modes in the AES. In this document, I will introduce the difference in the five kinds of mode. General The block ciphers are schemes for encryption or decryption where a block of plaintext is treated as a single block and is used to obtain a block of ciphertext with the same size. Today, AES (Advanced Encryption Standard) is one of the most used algorithms for block encryption. It has been standardized by the NIST (National ... Read More

Feed: Planet big data. Author: Srividya Sridharan. Come gather ’round, people, wherever you roamAnd admit that the waters around you have grownAnd accept it that soon you’ll be drenched to the boneIf your time to you is worth savin’Then you better start swimmin’ or you’ll sink like a stoneFor the times they are a-changin’. — Bob Dylan The times are a-changin’ indeed. The sweltering heat of summer will soon give way to a more forgiving fall, kids will return to school, and the trees will shed their leaves. Changes around us are inevitable, so it’s important to position your business to ... Read More

Feed: AWS Big Data Blog. Data lakes are an increasingly popular way to aggregate, store, and analyze both structured and unstructured data. AWS Lake Formation makes it easy for you to set up, secure, and manage your data lakes.In Part 1 of this post series, you learned how to create and explore a data lake using Lake Formation. This post walks you through data discovery using the metadata search capabilities of Lake Formation in the console, and metadata search results restricted by column permissions. Prerequisites For this post, you need the following: Metadata search in the console In this post, ... Read More

Feed: SAS Blogs. Author: Page Cvelich. Each week in August, the Work/Life Team has invited educational experts to address concerns parents have in the process of choosing a school. For our third blogpost in this series, we have invited our experts to respond to the following questions: What factors should I consider when determining best fit for my child? If I could talk to a few parents who have children attending the school, what questions would be good to ask? From Dr. Sharon Leuenberger, Director of Testing at 3-C Family Services: What factors should be considered really depends on the needs ... Read More