Tag: group

Feed: Cloudwards. Author: Jacob Roach; Mr. Robot is one of the more interesting shows made in the past decade, and though it has a few unexpected, and occasionally off-putting, turns, it has garnered a 93 percent on Rotten Tomatoes. If giving the finger to the powers that be in an even more dystopian version of our society sounds like your cup of tea, read on to find out how to watch Mr. Robot. The show follows Elliot, a cybersecurity engineer by day and hacker by night. Though his anti-social attitude leads to small issues in the workplace, Elliot faces more ... Read More

Feed: R-bloggers. Author: Keith Goldfeld. In the last two posts, I introduced the notion of time-varying intra-cluster correlations in the context of stepped-wedge study designs. (See here and here). Though I generated lots of data for those posts, I didn’t fit any models to see if I could recover the estimates and any underlying assumptions. That’s what I am doing now. My focus here is on the simplest case, where the ICC’s are constant over time and between time. Typically, I would just use a mixed-effects model to estimate the treatment effect and account for variability across clusters, which is ... Read More

Feed: Planet PostgreSQL. proposed by PostgreSQL contributor Alvaro Herrera. BRIN stands for “Block Range INdex”. A block range is a group of pages adjacent to each other, where summary information about all those pages is stored in Index.  For example, Datatypes like integers – dates where sort order is linear – can be stored as min and max value in the range. Other database systems including Oracle announced similar features later. BRIN index often gives similar gains as Partitioning a table.BRIN usage will return all the tuples in all the pages in the particular range. So the index is lossy ... Read More

Feed: Blog – Hazelcast. Author: Dan Ortega. Stream processing refers to real-time management of data entering a banking system (or any information system, actually) at high speed and volume, usually from a broad range of sources. The “management” aspect means data is wholly or partially processed and contextualized before entering an in-memory (operational) system, where pre-processing can significantly accelerate response times. Before in-memory technologies, transactional data was managed as a batch process and analyzed every hour, once a day, etc., depending on the data involved, the bank’s policies for handling data, regulatory and compliance requirements, and so on. While having ... Read More

Feed: Cloud – Cloudera Engineering Blog. Author: Shelby Khan. Fig 1 – Architecture Introduction Many of Cloudera’s customers set up Cloudera Manager to collect their clusters’ diagnostic data on a regular schedule and automatically send that data to Cloudera. Cloudera analyzes this data, identifies potential problems in the customer’s environment, and alerts customers, requiring fewer back-and-forths with our customers when they file a support case and provides Cloudera with critical information to improve future versions of all of Cloudera’s software. If Cloudera discovers a serious issue, Cloudera searches this diagnostic data and proactively notifies Cloudera customers who might encounter problems ... Read More

Feed: Cloudwards. Author: Jacob Roach; Things aren’t okay in the town of Riverdale, even outside of the teen drama that plagues Archie Andrews’ gang. With enough references to times past and neon lights to make even Stranger Things blush, Riverdale is worth a watch (read our how to watch Stranger Things guide). In this short tutorial, we’re going to show you how. There are a few ways to stream the show, some of which are legitimate and some that aren’t. Finding the show on its network, The CW Network, can often pose more problems than it’s worth, though, especially with ... Read More

Feed: Big Data Made Simple. Author: Guest. Gone are the times when marketers would rely on their instincts to launch ad campaigns. In this day and age, when the competition knows no bound, your marketing has to be right on the money. Otherwise, you stand no chance to get the better of your competitors. That’s exactly why data-driven marketing has become a buzz word in the business world.The way data-driven marketing has enhanced the accuracy of marketing campaigns, it has pretty much become a requirement today. With the increased accessibility of customer information and enhancement of big data, marketers perceive ... Read More

Feed: R-bloggers. Author: R on datawookie. For some time I’ve wanted to recreate the cover art from Joy Division’s Unknown Pleasures album. The visualisation depicts successive pulses from the pulsar PSR B1919+21, discovered by Jocelyn Bell in 1967. Album art.Data The first obstacle was acquiring the data. I found a D3 visualisation by Mike Bostock. This in turn pointed me to a CSV file in a gist belonging to @borgar. After reading the CSV data into pulsar I applied some light wrangling (the raw data is a matrix). library(dplyr) library(tidyr) pulsar read.csv(CSV_URL, header = FALSE) %>% mutate(row = row_number()) %>% ... Read More

Feed: R-bloggers. Author: Hadley Wickham. rstudio::conf, the conference for all things R and RStudio, will take place January 29 and 30, 2020 in San Francisco, California. It will be preceded by Training Days on January 27 and 28. Early Bird registration is now open! Conference: Wednesday-Thursday, Jan 29-30 Join me, your host and Chief Scientist of RStudio, for our keynote speakers: Along with 80 other talks in four parallel tracks. As well as RStudio data scientists and engineers, you’ll also hear from and interact with outstanding speakers drawn from the wider R and data science communities. Stay tuned for announcements ... Read More

Feed: Oracle Blogs | Oracle Blogs. When Maria Colgan walked on stage at Open Mic night at a recent developer conference in Seattle, she knew the rules: no slides, 5-minute limit, demos encouraged. After four minutes and 54 seconds, she walked off stage to whoops and applause from 200 or so developers. Her simple demo? Spinning up an autonomous Oracle Database in the cloud, clicking on a new, just-announced list of built-in development tools, and starting a project. “People were sincerely excited,” says Scott Spendolini, the evening’s emcee at ODTUG Kscope 19. “These developers make their living with the database ... Read More