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Mastering the art of effective communication skills

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Fox News Flash top headlines are here. Check out what's clicking on Foxnews.com. Communication is the bedrock of human interaction, influencing every facet of our lives -- from our personal connections to our professional endeavors. Beyond being a beneficial skill, effective communication stands as a vital asset in shaping the depth of our relationships, steering the course of our careers and serving as an incentive for personal growth and fulfillment. Communication resonates far beyond mere conversation; it's the foundation that underpins our connections, aspirations and journey toward self-improvement.


Mastering the Unsupervised Reinforcement Learning Benchmark from Pixels

Rajeswar, Sai, Mazzaglia, Pietro, Verbelen, Tim, Piché, Alexandre, Dhoedt, Bart, Courville, Aaron, Lacoste, Alexandre

arXiv.org Artificial Intelligence

Controlling artificial agents from visual sensory data is an arduous task. Reinforcement learning (RL) algorithms can succeed but require large amounts of interactions between the agent and the environment. To alleviate the issue, unsupervised RL proposes to employ self-supervised interaction and learning, for adapting faster to future tasks. Yet, as shown in the Unsupervised RL Benchmark (URLB; Laskin et al. 2021), whether current unsupervised strategies can improve generalization capabilities is still unclear, especially in visual control settings. In this work, we study the URLB and propose a new method to solve it, using unsupervised model-based RL, for pre-training the agent, and a task-aware fine-tuning strategy combined with a new proposed hybrid planner, Dyna-MPC, to adapt the agent for downstream tasks. On URLB, our method obtains 93.59% overall normalized performance, surpassing previous baselines by a staggering margin. The approach is empirically evaluated through a large-scale empirical study, which we use to validate our design choices and analyze our models. We also show robust performance on the Real-Word RL benchmark, hinting at resiliency to environment perturbations during adaptation. Project website: https://masteringurlb.github.io/


Mastering the exploration-exploitation trade-off in Bayesian Optimization

Candelieri, Antonio

arXiv.org Artificial Intelligence

Gaussian Process based Bayesian Optimization is a well-known sample efficient sequential strategy for globally optimizing black-box, expensive, and multi-extremal functions. The role of the Gaussian Process is to provide a probabilistic approximation of the unknown function, depending on the sequentially collected observations, while an acquisition function drives the choice of the next solution to evaluate, balancing between exploration and exploitation, depending on the current Gaussian Process model. Despite the huge effort of the scientific community in defining effective exploration-exploitation mechanisms, we are still far away from the master acquisition function. This paper merges the most relevant results and insights from both algorithmic and human search strategies to propose a novel acquisition function, mastering the trade-off between explorative and exploitative choices, adaptively. We compare the proposed acquisition function on a number of test functions and against different state-of-the-art ones, which are instead based on prefixed or random scheduling between exploration and exploitation. A Pareto analysis is performed with respect to two (antagonistic) goals: convergence to the optimum and exploration capability. Results empirically prove that the proposed acquisition function is almost always Pareto optimal and also the most balanced trade-off between the two goals.


From Beginner to Pro: Mastering the 10 Most Important TensorFlow Functions

#artificialintelligence

TensorFlow is a well-known open-source library for machine learning and deep learning. It has a lot of functions and tools that make it easy to build machine learning models and train them. In this lesson, we'll talk about the 10 most important TensorFlow functions you should know. With the tf.constant function, you can make a tensor with values that stay the same. It takes a list of values as input and gives back a tensor with the same shape and data type. With the tf.Variable function, a variable that can be changed during training is made.


Mastering the Art of Linear Regression: A Comprehensive Guide

#artificialintelligence

Linear regression is a statistical technique for modeling the relationship between a dependent variable and one or more independent variables. At its core, linear regression is a method for predicting a numerical outcome based on a set of input variables. But what exactly is linear regression and how does it work? In this article, we'll delve into the fundamentals of linear regression and explore its applications in a variety of fields, including economics, finance, and machine learning. We'll also discuss some of the key challenges and limitations of using linear regression, and provide practical tips for implementing it in your own analyses.


AlphaGo: How AI Mastered the Game of Go

#artificialintelligence

In 2016 AlphaGo beat the world's best player at the game of go. Then, it seemed impossible; now, it is remembered as a key milestone in the history of machine learning. Games, whether they are board games or video-games, are the perfect platform to test, evaluate and improve machine learning models. Games often have a very clear scoring system, and therefore present a clear and effective way to quantify and measure progress. In the past, there have been key milestones in the history of technology marked by other board games.


4 Key Challenges to Mastering A.I. Heading into 2023

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On June 8, 2022, Accenture presented The Art of A.I. Maturity report. The report revealed that only 12 percent of companies surveyed use A.I. at maturity level, achieving superior growth and business transformation. While A.I. can provide significant benefits for Enterprise organizations across any sector, the potential of the technology is still far from reaching its peak. While multiple problems can trip up your Enterprise AI adoption, there are four key challenges that companies will face as they move into 2023. Understanding these challenges can help organizations build a road map and their A.I. strategies.


Mastering the Game of Stratego with Model-Free Multiagent Reinforcement Learning

#artificialintelligence

We introduce DeepNash, an autonomous agent capable of learning to play the imperfect information game Stratego from scratch, up to a human expert level. Stratego is one of the few iconic board games that Artificial Intelligence (AI) has not yet mastered. This popular game has an enormous game tree on the order of $10^{535}$ nodes, i.e., $10^{175}$ times larger than that of Go. It has the additional complexity of requiring decision-making under imperfect information, similar to Texas hold'em poker, which has a significantly smaller game tree (on the order of $10^{164}$ nodes). Decisions in Stratego are made over a large number of discrete actions with no obvious link between action and outcome. Episodes are long, with often hundreds of moves before a player wins, and situations in Stratego can not easily be broken down into manageably-sized sub-problems as in poker. For these reasons, Stratego has been a grand challenge for the field of AI for decades, and existing AI methods barely reach an amateur level of play. DeepNash uses a game-theoretic, model-free deep reinforcement learning method, without search, that learns to master Stratego via self-play. The Regularised Nash Dynamics (R-NaD) algorithm, a key component of DeepNash, converges to an approximate Nash equilibrium, instead of 'cycling' around it, by directly modifying the underlying multi-agent learning dynamics. DeepNash beats existing state-of-the-art AI methods in Stratego and achieved a yearly (2022) and all-time top-3 rank on the Gravon games platform, competing with human expert players.


Mastering the 3 Ms

#artificialintelligence

Marketing today is on the threshold of change. In the past, marketing as we knew it was largely dominated by 30-second TV spots and other mass media such as print, outdoor, radio and so on. The number-crunching only came into play while deciding which medium to back in the advertising campaign and for what price to buy the media. But, look around today and there are the likes of Google, Facebook, Twitter and others who apply complex algorithms such as Page Rank, Adsense, marketing mix modelling, content marketing and so on along with technology (analytics, digital marketing, search engine optimisation (SEO) and search engine marketing (SEM) to make marketing a lot more data-driven. Similarly, in music the magic of maths plays a huge role.


Understanding Demand Forecasting And Then Mastering It - BizAcuity

#artificialintelligence

Businesses in every industry are facing increasing demand volatility. Additionally, with rapidly evolving market conditions, it has become vital for businesses to stay prepared and anticipate the future. To cater to these fast-changing market dynamics, the practice of demand forecasting began. Today, several businesses, especially those belonging to the FMCG sector, have sophisticated demand forecasting models in place, which help them stay ahead of the market. An area of predictive analytics, demand forecasting takes into account the historical data of a business and uses that to harnesses the demand for their goods and services.