Category: Education

Feed: Feed | Tractica. Author: Clint Wheelock. Virtual digital assistants (VDAs) are automated software applications or platforms that assist humans through understanding natural language in written or spoken form, and leverage some form of artificial intelligence (AI) in doing so.  Enterprise VDAs are controlled by an enterprise and deployed for interaction with a specific set of systems, using channels the organization typically controls, such as phone/interactive voice response (IVR), websites, mobile applications, or kiosks; and channels they do not control, such as messaging applications like Facebook Messenger, LINE, or Telegram, or smart assistants like Amazon’s Alexa.According to a new report ... Read More

Feed: R-bloggers. Author: R | datawookie. [This article was first published on R | datawookie, 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. @racently is a side project that I have been nursing along for a couple of years. It addresses a problem that I have as a runner: my race results are distributed across a variety of web sites. This makes it difficult to create a single view on my running performance ... Read More

Feed: R-bloggers. Author: Keith Goldfeld. [This article was first published on ouR data generation, 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. I am involved with a very interesting project – the NIA IMPACT Collaboratory – where a primary goal is to fund a large group of pragmatic pilot studies to investigate promising interventions to improve health care and quality of life for people living with Alzheimer’s disease and related dementias. One of ... Read More

Feed: R-bloggers. Author: R on Alan Yeung. [This article was first published on R on Alan Yeung, 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 previous blog posts (Hacking dbplyr for CKAN, Getting Open Data into R from CKAN) I have been exploring how to download data from the NHS Scotland open data platform into R. I’ve recently discovered that ROpenSci has a package to help with just this called ckanr and ... Read More

Feed: Cloudwards. Author: Ben Stockton; Avast is among the best free antivirus software on the market, while Webroot uses different methods to protect your devices, compared to its competitors. To decide which is best, we’re pitting Webroot and Avast against each other in a head-to-head comparison. Although the services cover different markets — with Avast appealing to the masses and Webroot targeting a niche audience — they’re more similar than they are different. That said, some areas, such as protection, are more important than others, pushing one of the services ahead.  This Webroot vs. Avast comparison can’t cover everything, though, ... Read More

Feed: Planet MySQL; Author: Mark Callaghan; How do you use an LSM for analytics? I haven't thought much about it because my focus has been small data -- web-scale OLTP since 2006. It is a great question given that other RocksDB users (Yugabyte, TiDB, Rockset, CockroachDB) support analytics.This post isn't a list of everything that is needed for an analytics engine. That has been described elsewhere. It is a description of problems that must be solved when trying to use well-known techniques with an LSM. I explain the LSM challenges for a vectorized query engine, columnar storage, analytics indexes and ... Read More

Feed: R-bloggers. Author: Nina Zumel. [This article was first published on R – Win-Vector Blog, 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. Regularization is a way of avoiding overfit by restricting the magnitude of model coefficients (or in deep learning, node weights). A simple example of regularization is the use of ridge or lasso regression to fit linear models in the presence of collinear variables or (quasi-)separation. The intuition is that smaller ... Read More

Feed: SAS Blogs. Author: Ron Cody. The t-test is a very useful test that compares one variable (perhaps blood pressure) between two groups. T-tests are called t-tests because the test results are all based on t-values. T-values are an example of what statisticians call test statistics. A test statistic is a standardized value that is calculated from sample data during a hypothesis test. It is used to determine whether there is a significant difference between the means of two groups. With all inferential statistics, we assume the dependent variable fits a normal distribution. When we assume a normal distribution exists, ... Read More

Feed: Big Data Made Simple. Author: Sherley Alaba. Just imagine you wake up on a vibrant Monday and head to your office. You’re hardly settled on your seat in the office when your boss calls you up for a meeting. After initial greetings of the day, your boss makes you meet an intelligent machine, saying, “Say hello to Mr. Robot. He is going to replace you from today.”Well, this is not a very common nightmare for many right now, but it would be a common fear of millions of people across the planet in about a decade. You’re not reading ... Read More

Feed: Cloudwards. Author: Jacob Roach; Identity theft isn’t a new concept, but it’s prominent now more than ever. With so much information shared on social media — not to mention the online shopping revolution — more personal information is stored in the cloud than ever before. Although the internet has brought new risks to identity theft, it has also brought new ways to protect against it.  In this guide to the best identity theft protection, we’re going to highlight the services that keep you safe from scams, fraud and any other criminal unpleasantness. Along the way, we’ll also talk about ... Read More