Sampling

The Big Bad Wolf is going to tear the Ugly Duckling to shreds unless you put that noggin to use. Yes, I’m blending characters from two different fairy tale universes, but maybe the Brothers Grimm meets Hans Christian Andersen is the crossover event we never knew we needed.Alex Winter on Innovative Horror Movies Ensuring that the Ugly Duckling lives to grow into a beautiful swan in this week’s puzzle will be quite difficult, but there is a satisfying solution if you stick with it. Much like a fairy tale, various…

A coin flip is the quintessence of fifty-fifty chance, but a large group of researchers recently overturned its equitable reputation. Recording a painstaking 350,000+ coin flips by hand, they found that almost 51% of tosses land with the same side facing upward as before the flip (i.e. if the coin shows heads at the start when perched on your thumb, then it is more likely to land heads, and the same goes for tails). If you’re looking for your next binge-watch, the researchers taped every flip and made the footage publicly…

The music world is buzzing with drama as Stunna Girl and Ciara lock horns over the unauthorized use of a classic hit. If you're wondering what the fuss is all about, we've got the lowdown for you. Stunna Girl calls Out Ciara's team for alleged racial bias in handling sampled beats.(X) The clash of tunes: "Stand Up" vs. "Goodies"Stunna Girl's latest track, "Stand Up," featuring YG, recently hit the airwaves. The reason? It samples Ciara's 2004 smash hit, "Goodies." A move that didn't sit well with Ciara and her…

Here’s a step-by-step tutorial on how to sample your dataset efficiently using PythonImage by authorI was putting the Christmas tree up with my wife. We went to the basement, took the tree, brought it upstairs, and started building it from bottom to top. It’s always a magic moment🎄Then it was the point to put the balls on the tree. And immediately I thought: there are at least three ways to put the balls on the tree.Uniformly: put the balls uniformly on the tree, kind of like thatImage by author, made using …

Understand the key elements that power advanced recommendation enginesOne of the most important types of models in recommendation systems at present is the two-tower neural networks. They are structured as follows: one part of the neural network (tower) processes all the information about the query (user, context), while the other tower processes information about the object. The outputs of these towers are embeddings, which are then multiplied (dot product or cosine, as we already discussed here). One of the first…

Mars Perseverance Sol 822 – Sample Caching System Camera: NASA’s Mars Perseverance rover acquired this image using its onboard Sample Caching System Camera (CacheCam), located inside the rover underbelly. Credit: NASA/JPL-Caltech<span class="glossaryLink" aria-describedby="tt" data-cmtooltip="<div class=glossaryItemTitle>NASA</div><div class=glossaryItemBody>Established in 1958, the National Aeronautics and Space Administration (NASA) is an independent agency of the United…

Illustration of the Mars Perseverance Rover using its SuperCam instrument to laser zap a rock in order to test what it’s made of. Credit: NASAThe <span class="glossaryLink" aria-describedby="tt" data-cmtooltip="<div class=glossaryItemTitle>Mars</div><div class=glossaryItemBody>Mars is the second smallest planet in our solar system and the fourth planet from the sun. It is a dusty, cold, desert world with a very thin atmosphere. Iron oxide is prevalent in Mars' surface…

Statistical sampling is a fundamental block of statistics that allows us to obtain information on the population of interest efficiently, without studying it directlyPhoto by Testalize.me on UnsplashOne of the most hidden desires of any researcher is to be able to have data on the entire population that he / she intends to study.Studying the whole population allows the researcher to obtain a complete understanding of the phenomenon under study, since this allows to collect information on all the individuals that make up…

Photo by Edge2Edge Media on UnsplashLearn how to sample from a distribution when you only have access to another distributionIntroductionAmong the various sampling methods that a data scientist must know one of the most important is the one called Importance Sampling.This method allows us to sample from one distribution even though we are actually only able to sample from a different distribution! Let’s see how it works.Importance SamplingSuppose, for example, that taking samples x from the distribution g(x) is infeasible…

Reddit has announced a new feature for subreddits: chat channels. The launch comes with a disclaimer from the company that previous Chat launches were not done "in the best ways" and that this approach focuses on small communities and mod tools to, ideally, be better.  Chat channels do differ in a few ways from the Live Chat feature, for example, existing as a permanent space in the subreddit, rather than a fleeting post. They're also operated by the mods, who can choose to block responses, pin messages and to chat in a…