Media
Close Encounters of the Third Kind Is Still Amazing
In Steven Spielberg's classic 1977 movie Close Encounters of the Third Kind, an ordinary man gets caught up in momentous events involving alien visitors. TV writer Andrea Kail says the film continues to fill her with awe. "It stands up better than most movies I've ever seen, including the special effects," Kail says in Episode 498 of the Geek's Guide to the Galaxy podcast. "It's shocking how well it's done. It doesn't look dated in any way. I think it's a stunning movie."
Demystifying machine-learning systems
In this figure, the technique was able to identify "the top boundary of horizontal objects" in photographs, which are highlighted in white. Neural networks are sometimes called black boxes because, despite the fact that they can outperform humans on certain tasks, even the researchers who design them often don't understand how or why they work so well. But if a neural network is used outside the lab, perhaps to classify medical images that could help diagnose heart conditions, knowing how the model works helps researchers predict how it will behave in practice. MIT researchers have now developed a method that sheds some light on the inner workings of black box neural networks. Modeled off the human brain, neural networks are arranged into layers of interconnected nodes, or "neurons," that process data.
Movie Recommendation Engine with NLP - Analytics Vidhya
So, let us now preprocess our data! Natural Language Processing techniques are our savior when we have to deal with textual data. Since our data cannot be fed to any machine-learning model unless we clean it, that's where NLP comes to play! Let's clean our text data โ Firstly, let us create a new column in our dataframe that will hold all necessary keywords required for the model.
Data Engineer
BrainPOP creates cross-curricular digital content that engages students and supports teachers. We feature animated movies, student creation and reflection tools, learning games, and interactive quizzes to customizable and playful assessments, lesson plans, professional development opportunities, and beyond. With headquarters based in the Flatiron District in NYC, BrainPOP is used in over 40% of US elementary and middle schools, and welcomes millions of monthly site visitors. We are seeking a talented Data Engineer to join our growing team. In this role, you will work closely with senior staff to build new data pipelines and refactoring existing ones that ingest and transform data from a wide array of sources.
Locally Invariant Explanations: Towards Stable and Unidirectional Explanations through Local Invariant Learning
Dhurandhar, Amit, Ramamurthy, Karthikeyan, Ahuja, Kartik, Arya, Vijay
Locally interpretable model agnostic explanations (LIME) method is one of the most popular methods used to explain black-box models at a per example level. Although many variants have been proposed, few provide a simple way to produce high fidelity explanations that are also stable and intuitive. In this work, we provide a novel perspective by proposing a model agnostic local explanation method inspired by the invariant risk minimization (IRM) principle -- originally proposed for (global) out-of-distribution generalization -- to provide such high fidelity explanations that are also stable and unidirectional across nearby examples. Our method is based on a game theoretic formulation where we theoretically show that our approach has a strong tendency to eliminate features where the gradient of the black-box function abruptly changes sign in the locality of the example we want to explain, while in other cases it is more careful and will choose a more conservative (feature) attribution, a behavior which can be highly desirable for recourse. Empirically, we show on tabular, image and text data that the quality of our explanations with neighborhoods formed using random perturbations are much better than LIME and in some cases even comparable to other methods that use realistic neighbors sampled from the data manifold. This is desirable given that learning a manifold to either create realistic neighbors or to project explanations is typically expensive or may even be impossible. Moreover, our algorithm is simple and efficient to train, and can ascertain stable input features for local decisions of a black-box without access to side information such as a (partial) causal graph as has been seen in some recent works.
Summarizing Differences between Text Distributions with Natural Language
Zhong, Ruiqi, Snell, Charlie, Klein, Dan, Steinhardt, Jacob
How do two distributions of texts differ? Humans are slow at answering this, since discovering patterns might require tediously reading through hundreds of samples. We propose to automatically summarize the differences by "learning a natural language hypothesis": given two distributions $D_{0}$ and $D_{1}$, we search for a description that is more often true for $D_{1}$, e.g., "is military-related." To tackle this problem, we fine-tune GPT-3 to propose descriptions with the prompt: "[samples of $D_{0}$] + [samples of $D_{1}$] + the difference between them is _____". We then re-rank the descriptions by checking how often they hold on a larger set of samples with a learned verifier. On a benchmark of 54 real-world binary classification tasks, while GPT-3 Curie (13B) only generates a description similar to human annotation 7% of the time, the performance reaches 61% with fine-tuning and re-ranking, and our best system using GPT-3 Davinci (175B) reaches 76%. We apply our system to describe distribution shifts, debug dataset shortcuts, summarize unknown tasks, and label text clusters, and present analyses based on automatically generated descriptions.
Consistent Collaborative Filtering via Tensor Decomposition
Zhao, Shiwen, Crissman, Charles, Sapiro, Guillermo R
Collaborative filtering is the de facto standard for analyzing users' activities and building recommendation systems for items. In this work we develop Sliced Anti-symmetric Decomposition (SAD), a new model for collaborative filtering based on implicit feedback. In contrast to traditional techniques where a latent representation of users (user vectors) and items (item vectors) are estimated, SAD introduces one additional latent vector to each item, using a novel three-way tensor view of user-item interactions. This new vector extends user-item preferences calculated by standard dot products to general inner products, producing interactions between items when evaluating their relative preferences. SAD reduces to state-of-the-art (SOTA) collaborative filtering models when the vector collapses to one, while in this paper we allow its value to be estimated from data. The proposed SAD model is simple, resulting in an efficient group stochastic gradient descent (SGD) algorithm. We demonstrate the efficiency of SAD in both simulated and real world datasets containing over 1M user-item interactions. By comparing SAD with seven alternative SOTA collaborative filtering models, we show that SAD is able to more consistently estimate personalized preferences.
Bramework Review: AI Content Generator - TangledTech
Bramework Review Content Generator: Bramework is newest AI writing software on the market. They use the GPT-3 model to help you create blog posts as quickly and painlessly as possible. The company has been around since April 2020 and has been regularly updating the software to add new features โ that article writers and bloggers need most. Let's take a look at what we'll be getting in this software. Unlike most other AI content generation software, Bramework is focused solely on article creation.
What Should Kids Study For A Robotic And AI Future?
My wife, who rounds in the hospital and teaches, often tells me that if more people really understood what the medical professionals see and what they must do, this just might alter their perspective on how they lead their lives. With real experience often comes better understanding. And yet, when you can't fully experience something, perhaps the best alternative is to learn from someone who is able to clearly and compellingly teach. Arriving Today, by distinguished science writer and Wall Street Journal technology columnist Christopher Mims, is one of those books that is able to tell the incredible story of what happens when you order a new USB charger, from the point of origin to the point of delivery, on that UPS truck. Imagine watching a movie where you follow this USB, and as you journey to each new location Christopher teaches you chapter by chapter about the history of technology, the origins of the ideas behind what he sees, the numbers that back them all up, and the stories of the people who are impacted greatly by all of this.
10 key skills that will help kick start a career in Artificial Intelligence
Over the past few years, AI has become one of the buzzwords of not just the IT industry, but every sector imaginable. Given its huge potential, it's not surprising that it is amongst the most sought-after skills by employers and employees alike. Artificial Intelligence exists as a broader concept, and an amalgamation of human intelligence with machines. The main aim behind deploying AI-based solutions is to enable machines or systems to act by themselves without repeated programmer coding. As one of the most in-demand skills of the decade, there are certain requirements in order to enjoy a successful career in AI and ML.