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How to Become a Data Scientist

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If you do know what a Data Scientist is, you are rare to find, as since even the most experienced professionals still have difficulty defining the scope of the area. One possible delimitation is that the data scientist is the person responsible for producing predictive and / or explanatory models using machine learning and statistics.


How to stop the brain drain of artificial intelligence experts out of academia (opinion) Inside Higher Ed

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Universities have long been a source of talented leaders for industry, but an accelerating exodus of professors with expertise in artificial intelligence has caused concerns. A recent Bloomberg op-ed asked, "If industry keeps hiring the cutting-edge scholars, who will train the next generation of innovators in artificial intelligence?" This article analyzes the problem and suggests solutions. The brain drain of AI experts out of academia can be explained in simple economic terms. The demand for experts has outpaced supply, leading to sharply increased prices.


Machine Learning with Python Business Applications AI Robot

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If the word'Machine Learning' baffles your mind and you want to master it, then this Machine Learning course is for you. If you want to start your career in Machine Learning and make money from it, then this Machine Learning course is for you. If you want to learn how to manipulate things by learning the Math beforehand and then write a code with python, then this Machine Learning course is for you. If you get bored of the word'this Machine Learning course is for you', then this Machine Learning course is for you. Well, machine learning is becoming a widely-used word on everybody's tongue, and this is reasonable as data is everywhere, and it needs something to get use of it and unleash its hidden secrets, and since humans' mental skills cannot withstand that amount of data, it comes the need to learn machines to do that for us.


Exponential Family Graph Embeddings

arXiv.org Machine Learning

Representing networks in a low dimensional latent space is a crucial task with many interesting applications in graph learning problems, such as link prediction and node classification. A widely applied network representation learning paradigm is based on the combination of random walks for sampling context nodes and the traditional Skip-Gram model to capture center-context node relationships. In this paper, we emphasize on exponential family distributions to capture rich interaction patterns between nodes in random walk sequences. We introduce the generic exponential family graph embedding model, that generalizes random walk-based network representation learning techniques to exponential family conditional distributions. We study three particular instances of this model, analyzing their properties and showing their relationship to existing unsupervised learning models. Our experimental evaluation on real-world datasets demonstrates that the proposed techniques outperform well-known baseline methods in two downstream machine learning tasks. Introduction Graphs or networks have become ubiquitous as data from diverse disciplines can naturally be represented as graph structures. Characteristics examples include social, collaboration, information and biological networks, or even networks that are generated by textual information. Besides, graphs are not only useful as models for data representation but can be proven valuable in prediction and learning tasks.


Joint Embedding Learning of Educational Knowledge Graphs

arXiv.org Artificial Intelligence

As an efficient model for knowledge organization, the knowledge graph has been widely adopted in several fields, e.g., biomedicine, sociology, and education. And there is a steady trend of learning embedding representations of knowledge graphs to facilitate knowledge graph construction and downstream tasks. In general, knowledge graph embedding techniques aim to learn vectorized representations which preserve the structural information of the graph. And conventional embedding learning models rely on structural relationships among entities and relations. However, in educational knowledge graphs, structural relationships are not the focus. Instead, rich literals of the graphs are more valuable. In this paper, we focus on this problem and propose a novel model for embedding learning of educational knowledge graphs. Our model considers both structural and literal information and jointly learns embedding representations. Three experimental graphs were constructed based on an educational knowledge graph which has been applied in real-world teaching. We conducted two experiments on the three graphs and other common benchmark graphs. The experimental results proved the effectiveness of our model and its superiority over other baselines when processing educational knowledge graphs.


Trash Talk Hurts Performance, Even When It Comes From a Robot

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Researchers at Carnegie Mellon University have demonstrated that people who play a game with a robot suffer in performance when the robot criticizes them. Trash talking has a long and colorful history of flustering game opponents, and now researchers at Carnegie Mellon University have demonstrated that discouraging words can be perturbing even when uttered by a robot. The trash talk in the study was decidedly mild, with utterances such as "I have to say you are a terrible player," and "Over the course of the game your playing has become confused." Even so, people who played a game with the robot โ€• a commercially available humanoid robot known as Pepper โ€• performed worse when the robot discouraged them and better when the robot encouraged them. "This is one of the first studies of human-robot interaction in an environment where they are not cooperating."


Verint Reimagines Cloud Workforce Management to Deliver World-Class Solution That Meets the Evolving Needs of Customers and Employees Verint Systems

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MELVILLE, N.Y., November 18, 2019 โ€“ Effectively managing today's workforce is crucial for improving customer experience, operational efficiency, and compliance. Yet currently, rising expectations of both customers and employees have made forecasting and scheduling contact center agents and customer engagement resources exponentially more challenging. To give companies a simpler way to manage work across the enterprise, Verint Systems Inc. (Nasdaq: VRNT), The Customer Engagement Company, today announced the newest release of its market-leading Workforce Management (WFM) solution, which leverages artificial intelligence-infused automation and new mobile tools to streamline forecasting and scheduling and improve employee engagement, all easily accessible via the Verint Cloud. "The workforce represents up to 80 percent of overall contact center budgets so accurate and cost-effective scheduling is vital," says Verint's John Goodson, SVP and general manager, Products. "At the same time, today's employees demand easier flex scheduling options, so organizations must balance flexibility and cost to provide superior service. As a pioneer in WFM, we view this new release as one that can invigorate the market to meet the ever-changing demands of today's contact centers and throughout the enterprise."


Students push to speed up artificial intelligence adoption in Latin America

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Omar Costilla Reyes reels off all the ways that artificial intelligence might benefit his native Mexico. It could raise living standards, he says, lower health care costs, improve literacy and promote greater transparency and accountability in government. But Mexico, like many of its Latin American neighbors, has failed to invest as heavily in AI as other developing countries. That worries Costilla Reyes, a postdoc at MIT's Department of Brain and Cognitive Sciences. To give the region a nudge, Costilla Reyes and three other MIT graduate students -- Guillermo Bernal, Emilia Simison and Pedro Colon-Hernandez -- have spent the last six months putting together a three-day event that will bring together policymakers and AI researchers in Latin America with AI researchers in the United States. The AI Latin American sumMIT will take place in January at the MIT Media Lab.


Scikit-Learn & More for Synthetic Dataset Generation for Machine Learning - KDnuggets

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It is becoming increasingly clear that the big tech giants such as Google, Facebook, and Microsoft are extremely generous with their latest machine learning algorithms and packages (they give those away freely) because the entry barrier to the world of algorithms is pretty low right now. The open-source community and tools (such as scikit-learn) have come a long way, and plenty of open-source initiatives are propelling the vehicles of data science, digital analytics, and machine learning. Standing in 2018 we can safely say that, algorithms, programming frameworks, and machine learning packages (or even tutorials and courses how to learn these techniques) are not the scarce resource but high-quality data is. This often becomes a thorny issue on the side of the practitioners in data science (DS) and machine learning (ML) when it comes to tweaking and fine-tuning those algorithms. It will also be wise to point out, at the very beginning, that the current article pertains to the scarcity of data for algorithmic investigation, pedagogical learning, and model prototyping, and not for scaling and running a commercial operation.


Transfer Learning Made Easy: Coding a Powerful Technique - KDnuggets

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Fig: The model summary of the second network showing the fixed and trainable weights. The fixed weights are transferred directly from the first network. Now we train the second model and observe how it takes less overall time and still gets equal or higher performance. The accuracy of the second model is even higher than the first model, although this may not be the case all the time, and depends on the model architecture and dataset. Fig: Validation set accuracy over epochs while training the second network.