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Learning Optimal and Near-Optimal Lexicographic Preference Lists

arXiv.org Artificial Intelligence

We consider learning problems of an intuitive and concise preference model, called lexicographic preference lists (LP-lists). Given a set of examples that are pairwise ordinal preferences over a universe of objects built of attributes of discrete values, we want to learn (1) an optimal LP-list that decides the maximum number of these examples, or (2) a near-optimal LP-list that decides as many examples as it can. To this end, we introduce a dynamic programming based algorithm and a genetic algorithm for these two learning problems, respectively. Furthermore, we empirically demonstrate that the sub-optimal models computed by the genetic algorithm very well approximate the de facto optimal models computed by our dynamic programming based algorithm, and that the genetic algorithm outperforms the baseline greedy heuristic with higher accuracy predicting new preferences.


Look, Read and Enrich. Learning from Scientific Figures and their Captions

arXiv.org Artificial Intelligence

Look, Read and Enrich Learning from Scientific Figures and their Captions Jose Manuel Gomez-Perez, Raul Ortega Expert System Cogito Labs { jmgomez,rortega}@expertsystem.com Abstract Compared to natural images, understanding scientific figures is particularly hard for machines. However, there is a valuable source of information in scientific literature that until now has remained untapped: the correspondence between a figure and its caption. In this paper we investigate what can be learnt by looking at a large number of figures and reading their captions, and introduce a figure-caption correspondence learning task that makes use of our observations. Training visual and language networks without supervision other than pairs of unconstrained figures and captions is shown to successfully solve this task. We also show that transferring lexical and semantic knowledge from a knowledge graph significantly enriches the resulting features. Finally, we demonstrate the positive impact of such features in other tasks involving scientific text and figures, like multi-modal classification and machine comprehension for question answering, outperforming supervised baselines and ad-hoc approaches. 1 Introduction Scientific knowledge is heterogeneous and can present itself in many forms, including text, mathematical equations, figures and tables. Like many other manifestations of human thought, the scientific discourse usually adopts the form of a narrative, a scientific publication where related knowledge is presented in mutually supportive ways over different modalities. In the case of scientific figures, like charts, images and diagrams, these are usually accompanied by a text paragraph, a caption, that elaborates on the analysis otherwise visually represented. In this paper, we make use of this observation and tap on the potential of learning from the enormous source of free supervision available in the scientific literature, with millions of figures and their captions.


The Complete Data Science and Machine Learning using Python Coupons ME

#artificialintelligence

Thank you for considering this Data Science course in your journey to be the Data Scientist. This course has 200 lectures, more than 20 hours of content, 10 projects including one Kaggle competition with top 1 percentile score, code templates and various quizzes. Today Data Science and Machine Learning is used in almost all the industries, including but not limited to automobile, banking, healthcare, media, telecom and others.


The Complete Data Science and Machine Learning using Python Coupons ME

#artificialintelligence

Thank you for considering this Data Science course in your journey to be the Data Scientist. This course has 200 lectures, more than 20 hours of content, 10 projects including one Kaggle competition with top 1 percentile score, code templates and various quizzes. Today Data Science and Machine Learning is used in almost all the industries, including but not limited to automobile, banking, healthcare, media, telecom and others.


The future of work will still include plenty of jobs

#artificialintelligence

There is now widespread anxiety over the future of work, often accompanied by calls for a basic income to protect those displaced by automation and other technological changes. As a labour economist, I am in favour of more efficient redistributive taxation through the application of refundable tax credits, which amounts to an income-tested basic income or negative income tax. But I am more skeptical about the spectre of a future without work. And if the future isn't scarred by massive, widespread technological unemployment, a basic income would be neither outrageously expensive nor the be-all and end-all of the policy measures that society needs. The reasons for my skepticism about a future without work rests in the evidence to date.


How to View Tensorboard Callbacks from Keras ? - Data Science Learner

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You already know what is Keras and to build a deep learning model using it. Instead of using TensorFlow directly you use Keras to build the model. But wait do you know you can also use the tools that are included in TensorFlow using Keras. There is a tool in the TensorFlow that is Tensorboard that lets you visualize your model's structure and monitor its training. In this entire intuition, you will learn how to view Tensorboard callbacks through Keras and do some analytics to improve your deep learning model.


The AI Race Is Wide Open, If America Remains Open - MacroPolo

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Much ink has been spilled on the artificial intelligence (AI) race between the United States and China, leading to a whole lot of hand-wringing on how America can maintain its edge. America ought to double down on what it's best at: importing foreign talent. That's because among the main building blocks of a competitive AI ecosystem--data, policy, companies, and hardware--talent is the one area in which the United States definitively leads over China. Let's take a closer look at where America stands in terms of AI talent globally and the foundation of its current advantage. One metric to gauge AI talent is the attendees of the Conference on Neural Information Processing Systems, commonly referred to as NIPS within the industry.


Facebook is betting the next big interface is conversation

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Back in 2015, chatbots were big. And one of the most hyped ones was Facebook's M, which the company meant to be a flexible, general-purpose bot that could do lots of different things such as purchase items, arrange gift deliveries, reserve restaurant tables, and plan travel. But the buzz was far bigger than the bot. When Facebook tested M with a group of 2,500 people in the Bay Area, the software failed to carry out most of the tasks it was asked to do. After the initial burst of enthusiasm for M and other chatbots ("bots are the new apps," Microsoft CEO Satya Nadella proclaimed), a wave of disappointment followed.


Insights from the Field: Navigating the adaptive learning courseware products

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Adaptive learning is an emerging technology that has been shown to increase student engagement and student learning. Adaptive learning systems are automated systems that use machine learning to provide questions to assess student knowledge, give immediate feedback on responses, and provide scaffolding to support learning. The Online Learning Consortium (OLC) is reaching out to our global community of thought leaders, faculty, innovators, and practitioners to bring you insights from the field of online, blended, and digital learning. This week, Dr. Deborah Taylor, OLC Institute SME and faculty for the Adaptive Learning Fundamentals and Courseware Exploration workshop, joins us to answer our questions about this new workshop. OLC: There are many opportunities to teach online.


How to easily boost student achievement using AI » NEO LMS

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All educators are under huge pressure to prepare students for the unknown future and the only way to be successful at this endeavor is to embrace technology. Instead of being afraid of Artificial Intelligence, teachers should learn how to harness its power. Adaptive learning is an already available powerful concept that could be successfully used in an incipient phase of Artificial Intelligence. This white paper covers a practical way to use a form of adaptive learning for tapping into the benefits of Artificial Intelligence.