This video is intended to give students (high school, undergrad, and grad) as well as new staff, an overview of some of the basic information regarding what scientific research involves including: the scientific method, conducting a literature search, the anatomy of primary source articles, scientific communication, the publishing process, broad goals of research labs, how to make a useful contributions to a research lab, and more.
View ResourceDecision and Classification Trees, Clearly Explained!!! (StatQuest)
March 5, 2023
by
Ray
Decision trees are part of the foundation for Machine Learning. Although they are quite simple, they are very flexible and pop up in a very wide variety of situations. This StatQuest covers all the basics and shows you how to create a new tree from scratch, one step at a time.
View ResourceFoundations of Artificial Intelligence
March 5, 2023
by
Ray
Educational lectures for the course: “Foundations of Artificial Intelligence” developed by Dr. Ryan Urbanowicz in 2020 at the University of Pennsylvania’s Perelman School of Medicine. This is the first of three courses covering topics in artificial intelligence for application within the context of informatics and biomedical research. The course is divided into modules that cover (1) introductory/background materials, (2) logic, (3) other knowledge representation, (4) essentials of expert systems, (5) search, (6) uncertainty, and (7) advanced/auxiliary topics. These topics offer a global foundation for branches of AI application and research, including concepts that will later support a deeper understanding of inductive reasoning and machine learning. In a practical sense, this course focuses on how biomedical data can be organized, represented, interpreted, searched, and applied in order to derive knowledge, make decisions, and ultimately make predictions while avoiding bias. This course was assembled using content from a wide variety of textbooks, slides, and lectures by various authors and speakers on the relevant topics. Some lectures were prepared and given by guest lecturers and thus have not been posted. At the time of posting, this course is in its second year so any feedback is welcome regarding any mistakes or suggested improvements.
View ResourceGradient Boosting
March 5, 2023
by
Ray
Gradient Boost is one of the most popular Machine Learning algorithms in use. And get this, it’s not that complicated! This video is the first part in a series that walks through it one step at a time. This video focuses on the main ideas behind using Gradient Boost to predict a continuous value, like someone’s weight. We call this, “using Gradient Boost for Regression”. In the next video, we’ll work through the math to prove that Gradient Boost for Regression really is this simple. In part 3, we’ll walk though how Gradient Boost classifies samples into two different categories, and in part 4, we’ll go through the math again, this time focusing on classification.
View ResourceIntroduction to Research in a Computational Lab
March 5, 2023
by
Ray
This video is intended to give students (high school, undergrad, and grad) as well as new staff, an overview what research is like in a ‘dry’ or computational laboratory.
View ResourceLinear and Logistic Regression Models
March 5, 2023
by
Ray
The Main Ideas of Fitting a Line to Data (The Main Ideas of Least Squares and Linear Regression.)
View ResourceMachine Learning Essentials for Biomedical Data Science
March 5, 2023
by
Ray
An educational playlist (including 11 videos) covering the key essentials for using machine learning as part of a data science analysis pipeline. While topics are primarily framed around applications in biomedicine, this content is broadly applicable to other domains. This series was prepared at the Cedars Sinai Medical Center in Los Angeles by Dr. Ryan Urbanowicz of the Department of Computational Biomedicine.
View ResourceNeural Networks/ Deep Learning (StatQuest)
March 5, 2023
by
Ray
Neural Networks are one of the most popular Machine Learning algorithms, but they are also one of the most poorly understood. Everyone says Neural Networks are “black boxes”, but that’s not true at all. In this video I break each piece down and show how it works, step-by-step, using simple mathematics that is still true to the algorithm. By the end of this video you will have a deep understanding of what Neural Networks do.
View ResourceRandom Forests (StatQuest)
March 5, 2023
by
Ray
Random Forests make a simple, yet effective, machine learning method. They are made out of decision trees, but don’t have the same problems with accuracy. In this video, I walk you through the steps to build, use and evaluate a random forest.
View ResourceRule-Based Machine Learning
March 5, 2023
by
Ray
A collection of educational videos focusing on rule-based machine learning and/or the more specific family of ‘learning classifier system’ machine learning algorithms. These algorithms are uniquely able to detect, model, and characterize complex multivariate associations in data while yielding much more interpretable models.
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