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1.6. Nearest Neighbors -- scikit-learn 0.17.1 documentation

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Unsupervised nearest neighbors is the foundation of many other learning methods, notably manifold learning and spectral clustering. Supervised neighbors-based learning comes in two flavors: classification for data with discrete labels, and regression for data with continuous labels. The principle behind nearest neighbor methods is to find a predefined number of training samples closest in distance to the new point, and predict the label from these. The number of samples can be a user-defined constant (k-nearest neighbor learning), or vary based on the local density of points (radius-based neighbor learning). The distance can, in general, be any metric measure: standard Euclidean distance is the most common choice. Neighbors-based methods are known as non-generalizing machine learning methods, since they simply "remember" all of its training data (possibly transformed into a fast indexing structure such as a Ball Tree or KD Tree.). Despite its simplicity, nearest neighbors has been successful in a large number of classification and regression problems, including handwritten digits or satellite image scenes.


An example machine learning notebook

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This notebook was written by Dr. Randal S. Olson from GitHub. In this notebook, Randal is going to go over a basic Python data analysis pipeline from start to finish to show you what a typical data science workflow looks like. In addition to providing code examples, he also hopes to imbue in you a sense of good practices so you can be a more effective -- and more collaborative -- data scientist. Randal will be following along with the data analysis checklist from The Elements of Data Analytic Style, which he strongly recommends reading as a free and quick guidebook to performing outstanding data analysis. In the time it took you to read this sentence, terabytes of data have been collectively generated across the world -- more data than any of us could ever hope to process, much less make sense of, on the machines we're using to read this notebook.In response to this massive influx of data, the field of Data Science has come to the forefront in the past decade. Cobbled together by people from a diverse array of fields -- statistics, physics, computer science, design, and many more -- the field of Data Science represents our collective desire to understand and harness the abundance of data around us to build a better world.


Applied Machine Learning With Weka Mini-Course - Machine Learning Mastery

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Machine learning is a fascinating study, but how do you actually use it on your own problems? You may be confused as to how best prepare your data for machine learning, which algorithms to use or how to choose one model over another. In this post you will discover a 14-part crash course into applied machine learning using the Weka platform without a single mathematical equation or line of programming code. Applied Machine Learning With Weka Mini-Course Photo by Leon Yaakov, some rights reserved. Before we get started, let's make sure you are in the right place.


Kotak Bank starts Innovation Lab,open to investing in startups - Artificial Intelligence Online

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Private sector lender Kotak Mahindra Bank has started an'Innovation Lab' in Bengaluru to tap into the best technology that impacts its operations, and is open to investing in startups, a senior company official has said. "We started an'Innovation Lab' recently which is right now a dedicated space from where we are partnering with startups in the fintech space to test concepts and launch them into commercial products," Kotak Bank's Chief Digital Officer Deepak Sharma told PTI. The fourth largest private sector bank has put together a seven-member core team, which is working with an equal number of startups in the artificial intelligence, analytics, biometric or iris scanning and machine learning space. A bulk of the startups are Bengaluru-based, while two are from the US and Australia, Sharma said. Domestic lenders, especially those in the private sector, have been increasing their engagement with the fledgling fintech startup community to tap into the technologies of the future which will help them stay relevant.


The Mathematics of Machine Learning

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In the last few months, I have had several people contact me about their enthusiasm for venturing into the world of data science and using Machine Learning (ML) techniques to probe statistical regularities and build impeccable data-driven products. However, I have observed that some actually lack the necessary mathematical intuition and framework to get useful results. This is the main reason I decided to write this blog post. Recently, there has been an upsurge in the availability of many easy-to-use machine and deep learning packages such as scikit-learn, Weka, Tensorflow, R-caret etc. Machine Learning theory is a field that intersects statistical, probabilistic, computer science and algorithmic aspects arising from learning iteratively from data and finding hidden insights which can be used to build intelligent applications. Despite the immense possibilities of Machine and Deep Learning, a thorough mathematical understanding of many of these techniques is necessary for a good grasp of the inner workings of the algorithms and getting good results. Selecting the right algorithm which includes giving considerations to accuracy, training time, model complexity, number of parameters and number of features.


NeuralNets for Count Data? โ€ข /r/MachineLearning

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In the Statistics community, count data often receives special treatment (poisson, negative-binomial models etc.). Is there any special literature OR guidance available on using (Deep) Neural Networks for count-data?


My Top 9 Favorite Python Deep Learning Libraries

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This article was posted by Adrian Rosebrock on Pyimagesearch. Adrian is an entrepreneur and Ph.D who has launched two successful image search engines, ID My Pill and Chic Engine. This list is by no means exhaustive, it's simply a list of libraries that he has used in his computer vision career and found particular useful at one time or another. The goal of this blog post is to introduce you to these libraries. He encourages you to read up on each them individually to determine which one will work best for you in your particular situation.


Seth Rogen Teases New FX Pilot Based on Artificial Intelligence - The Interrobang

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Actor/director Seth Rogen let slip a few details about a new project this week. Appearing on Chris Hardwick's Nerdist podcast, Rogen revealed that he's currently writing a script that will be based on the singularity, a concept popularized by author and futurist Ray Kurzweil. The singularity, in a nutshell, is the time in human history in which artificial intelligence becomes so advanced that it allows humanity to enter the next stage of its evolution. While promoting his new film, Sausage Party, Rogen let slip the basics of the project. "It's called -- it's about singularity, it's about artificial intelligence," said Rogen.


Business are starting to see the potential in artificial intelligence customer service

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This story was delivered to BI Intelligence Apps and Platforms Briefing subscribers. To learn more and subscribe, please click here. Interest in the use of artificial intelligence in the workplace is continuing to heat up. This is exemplified by Interactions, a virtual assistant startup, which announced on Tuesday that it has secured 56 million during its most recent funding round, TechCrunch reports. The round was the largest to date, bringing the company's total funding to around 130 million.


How computer-assisted art will help humans embrace the rise of the robots

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For many people, the robot-populated future is a zero-sum game; it's either going to be us or them running things. Headlines -- and not just on conspiracy theory websites -- are rife with dire predictions like "Robots will take over most jobs in 30 years" and "The future has lots of robots, few jobs for humans." Lest one think they will be spared because they are in a "creative" or "people-oriented" discipline, this list should give even those folks something to worry about. "Computer art" -- where a computer uses algorithms to create a piece of art or music -- is an emerging technology. You know it's a serious endeavor when Google gets involved -- as the company did earlier this year with its new Magenta platform, which, according to the company, is "a research project to advance the state of the art in machine intelligence for music and art generation. Machine learning has already been used extensively to understand content, as in speech recognition or translation. With Magenta, we want to explore the other side -- developing algorithms that can learn how to generate art and music, potentially creating compelling and artistic content on their own."