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Rectified Decision Trees: Exploring the Landscape of Interpretable and Effective Machine Learning

arXiv.org Machine Learning

Interpretability and effectiveness are two essential and indispensable requirements for adopting machine learning methods in reality. In this paper, we propose a knowledge distillation based decision trees extension, dubbed rectified decision trees (ReDT), to explore the possibility of fulfilling those requirements simultaneously. Specifically, we extend the splitting criteria and the ending condition of the standard decision trees, which allows training with soft labels while preserving the deterministic splitting paths. We then train the ReDT based on the soft label distilled from a well-trained teacher model through a novel jackknife-based method. Accordingly, ReDT preserves the excellent interpretable nature of the decision trees while having a relatively good performance. The effectiveness of adopting soft labels instead of hard ones is also analyzed empirically and theoretically. Surprisingly, experiments indicate that the introduction of soft labels also reduces the model size compared with the standard decision trees from the aspect of the total nodes and rules, which is an unexpected gift from the `dark knowledge' distilled from the teacher model.


Robust Similarity and Distance Learning via Decision Forests

arXiv.org Machine Learning

Canonical distances such as Euclidean distance often fail to capture the appropriate relationships between items, subsequently leading to subpar inference and prediction. Many algorithms have been proposed for automated learning of suitable distances, most of which employ linear methods to learn a global metric over the feature space. While such methods offer nice theoretical properties, interpretability, and computationally efficient means for implementing them, they are limited in expressive capacity. Methods which have been designed to improve expressiveness sacrifice one or more of the nice properties of the linear methods. To bridge this gap, we propose a highly expressive novel decision forest algorithm for the task of distance learning, which we call Similarity and Metric Random Forests (SMERF). We show that the tree construction procedure in SMERF is a proper generalization of standard classification and regression trees. Thus, the mathematical driving forces of SMERF are examined via its direct connection to regression forests, for which theory has been developed. Its ability to approximate arbitrary distances and identify important features is empirically demonstrated on simulated data sets. Last, we demonstrate that it accurately predicts links in networks.


AI Residency – Google Research

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The Google AI Residency Program was created in 2015 with the goal of training and supporting the next generation of deep learning researchers. With machine learning fast becoming a critical area for a broad range of applications, we recognized the need to evolve our research goals and expand beyond deep learning to include a breadth of machine learning subfields. People from a wide range of disciplines are beginning to realize the importance and impact of this area of research. With growing interest in the field, there is a corresponding need for researchers with hands-on experience in machine learning techniques and methodologies. Residents will have the opportunity to be mentored by distinguished scientists and engineers from various teams within Google AI, and work on real-world machine learning problems and applications.


ROYBI Case Study

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ROYBI Inc. is a startup dedicated to reinventing early-childhood education. "There's so much attention on higher education, but when it comes to early education, you don't see many strong tools or products," says Elnaz Sarraf, ROYBI founder and chief executive officer. "In a world that regards education so highly, we have yet to make a real impact in early-childhood education. This formative period in a child's life is where they absorb the most information and build a foundation that will carry them through life." To address this gap, Sarraf and Ron Cheng, ROYBI cofounder and chief technology officer, wanted to combine robotics and artificial intelligence (AI) to create a fun, interactive-learning experience that could go beyond traditional pedagogies.


Announcing the newest AWS Heroes – August 2020

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The AWS Heroes program recognizes a select few individuals who go above and beyond to share AWS knowledge and teach others about AWS, all while helping make building AWS skills accessible to many. These leaders have an incredible impact within technical communities worldwide and their efforts are greatly appreciated. Serverless Hero Angela Timofte is a Data Platform Manager at Trustpilot. Passionate about knowledge sharing, coaching, and public speaking, she is committed to leading by example and empowering people to seek and develop the skills they need to achieve their goals. She is driven to build scalable solutions with the latest technologies while migrating from monolithic solutions using serverless applications and event-driven architecture.


How Duolingo uses AI in every part of its app

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Language learning has surged during the pandemic. Duolingo, which is synonymous with gamified language learning, saw its fastest growth period this March, with a 101% global increase in new users. From those who simply have more time on their hands to students trying to keep up during the pandemic school year, the app is a huge boon. All that extra data isn't going to waste -- because Duolingo invested early in AI, the app keeps getting better as it grows beyond the 30 million monthly active users reported in December 2019. "One of the things people don't know is that even though Duolingo is very gamified and it just looks very cutesy, we actually record everything you do to try to basically have a model of what you know," Duolingo CEO Luis von Ahn told VentureBeat. We spoke to von Ahn about all the ways Duolingo uses AI and then followed up with the company's research director, Burr Settles, who joined in 2013 (Duolingo was founded in 2012). "We hired this guy named Burr who has a Ph.D. in AI," von Ahn said when describing the company's first foray into AI. "He came in and the idea was'Try to figure out how to use AI to improve Duolingo.'" We've already done deep dives into how Duolingo uses AI to humanize virtual language lessons and to drive its English proficiency tests.


What is artificial intelligence?

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IMAGE: Cover for "What is Artificial Intelligence: A Conversation between an AI Engineer and a Humanities Researcher " view more What do the words'artificial' and'intelligence' mean? And what are the consequences of developing AI? Instead of reiterating received definitions or surveying the field from a disciplinary perspective, Peter and Suman put two differing standpoints into conversation in their new book What is Artificial Intelligence? to engage with these questions and more. Peter is an AI engineer: with his applied approach, he focuses on how to make AI work. Suman is a humanities researcher: his approach is conceptual and so he concentrates on what people and academics mean when they say'AI'. Covering issues such as the meaning of'automation' and'language', What is Artificial Intelligence?


Hybrid and remote learning model selections sent out to Boston families, Cassellius provides reopening update

Boston Herald

Boston families grappling with school reopening will now begin the process of choosing which learning model they want for their children, while facilities are being cleaned and improvements to remote learning are still being prepared, according to a Wednesday update from Superintendent Brenda Cassellius and her team. "We are starting to ask families to identify the learning model they would prefer for their children," said Monica Roberts, Boston Public Schools chief of student, family and community advancement. Roberts said the selection form went out Wednesday night and had gotten about 1,800 responses after just one hour. She said robocalls, individualized phone calls and other community messaging will work to target families and gather responses. If families don't respond with their selection for either a remote or hybrid model, students will be scheduled into a hybrid model with busing, if applicable, said Roberts.


Machine Learning & Artificial Intelligence upskilling through gamified learning

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DBS has set its sights on accelerating the use of AI and Machine Learning across its business. To enable this, DBS and AWS have jointly launched the DBS x AWS DeepRacer League. DBS employees will learn the basics of AI and Machine Learning by participating in a series of hands-on online tutorials before putting their new knowledge to the test by programming their own autonomous model race car. These Machine Learning models are then uploaded onto a virtual racing environment where employees can experiment and iteratively finetune their models as they engage each other in friendly competition. Paul Cobban, Chief Data and Transformation Officer at DBS, said, "As a technology company that provides banking services, we are keenly aware of the need to stay ahead of the technology curve to continue exceeding our customers' expectations. We have never believed in limiting digital expertise to a small team. Instead, we passionately believe in democratising technology skillsets among all employees, so that they can run alongside the company as we advance on our digital transformation together. Additionally, we wanted to adopt a different approach from our previous digital and data skills revolutions. In line with our ethos of keeping work and learning fun, we sought to introduce gamification elements to better engage our employees, and the AWS DeepRacer League platform presented the perfect opportunity."


AWS Certified Machine Learning 2021

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Get Coupon ED AWS Certified Machine Learning 2021 The AWS Certified Machine Learning - Specialty certification is intended for individuals who perform a development or data science role Udemy Coupon ED Included in This Course 70 questions Description FULLY UPDATED to the last exam version! There are a lot of courses out there that are claiming that their courses are fully updated, but they're actually not! Our practice tests contain the new exam version. These questions and answers are the final step in your test preparation. Each Practice Test has: the right answer for each question Based on recent certification exams.