9.5 | Signal Detection and ROC Curves: Optimizing Medical Software Decisions | Medical Software Course
YaleCoursesShow Notes
How do we make critical decisions from data, especially when mistakes can be costly? In this lesson, we delve into the fundamental problem of signal detection, exploring its origins in radar and its vital applications in medical software, such as cancer screening. We'll uncover the delicate balance between false positives and false negatives, understand the concepts of sensitivity and specificity, and learn how Receiver Operating Characteristic (ROC) curves and Area Under the Curve (AUC) are used to evaluate and optimize the performance of detection algorithms.Uploaded 22-08-25🎯 Learning Objectives• Understand the fundamental problem of signal detection and its relevance in medical applications.• Identify and differentiate between true positives, false negatives, false positives, and true negatives.• Define and explain the concepts of sensitivity and specificity in the context of detection algorithms.• Analyze the trade-off between sensitivity and specificity when setting detection thresholds.• Interpret Receiver Operating Characteristic (ROC) curves and Area Under the Curve (AUC) to evaluate algorithm performance. Learn more about your ad choices. Visit megaphone.fm/adchoices Learn more about your ad choices. Visit megaphone.fm/adchoices
More from YaleCourses
How does an idea born in a classroom transform into a large-scale social venture impacting thousands? In this illuminating conversation, Ruchit Nagar, CEO of Khushi Baby, shares the incredible journey of his digital health tech nonprofit. From developing a unique wearable NFC device for offline vaccine records to empowering community health workers with a comprehensive mobile platform across Rajasthan, this lesson highlights the power of human-centered design, relentless iteration, and a commitment to evolving solutions for real-world needs in rural India.Uploaded 13-08-25🎯 Learning Objectives• Understand how a classroom project can evolve into a large-scale social enterprise addressing critical health challenges.• Explore the principles of human-centered design and iterative development in creating culturally appropriate healthcare solutions.• Learn about the technological innovation behind Khushi Baby's wearable digital health record and its expansion into a comprehensive primary healthcare platform.• Recognize the importance of adapting your design question and persevering through setbacks when scaling social innovations.📚 About the Course Have you ever wondered what it would be like to create real change? You don't have to start your own organization to make a difference in the world. Everyone can learn the social entrepreneurship mindset and skillset to build social impact. In this course, you will immerse yourself in a social or environmental challenge you want to tackle. You'll start by researching your topic of choice, talking to people, and ideating a potential solution that you can contribute. Then, you'll build a business model around that solution, understanding concepts like measuring social change, ensuring financial viability, funding and pitching. This course is a safe space to experiment and explore. You'll be guided by a ten stage framework to help structure your journey. Along the way, you'll hear from social entrepreneurs around the world through case studies and campus conversations. These include Yale alumni, members of the New Haven community, and global changemakers. Everyone is welcome to join this course! You can apply your lived, learned, or professional experience to discover how you're going to make a difference. #SocialEntrepreneurship #YaleCourse #Impact #Changemakers #BusinessPlan #DesignThinking Learn more about your ad choices. Visit megaphone.fm/adchoices Learn more about your ad choices. Visit megaphone.fm/adchoices
How do you stay accountable to system-level goals as the gap between current state and goal keeps shifting? Use the Waters Institute model to track concern, influence, and control over time and put your system progress on one page.Uploaded 09-06-26Key topics:- The fourth P: progress at the system level- Mapping concern, influence, and control- Iterating strategies as the gap evolves- Building a system progress one-page worksheet- Connecting self, team, and system one-pagers📚 About the Course:This course is designed to maximize your ability to create change at the individual, team and system levels. Through study, reflection, and deploying practical tools, you will establish a firm connection between your clearly articulated Purpose, effective Priorities, visualized Potential for success, and pathway to maximized Progress. But, what does that mean in practice?When you take this course, you will:Improve your ability to get the most out of life: Learn a simple practice to reflect on your purpose, clarify priorities, visualize your potential, and maximize your effectiveness at progressing towards your goals.Strengthen your leadership toolkit: Tap into your unique leadership style and strengths and join or create a community of others to maximize your potential as a team.Create change through systems thinking: Become a more effective agent of positive change and appreciate the power and complexity of system thinking.Course Takeaways:Improve your ability to get the most out of lifeStrengthen your leadership toolkitPractice and apply systems thinking to plan for change📺 Watch the full playlist on YouTube: https://www.youtube.com/playlist?list=PLh9mgdi4rNezZEnhZC8dS3AvTnzOiB0Ij🎓 Enroll on Coursera for assessments and a certificate: https://www.coursera.org/learn/connected-leadership🌐 Explore more learning opportunities on Yale Online: https://online.yale.edu/courses/connected-leadership Learn more about your ad choices. Visit megaphone.fm/adchoices Learn more about your ad choices. Visit megaphone.fm/adchoices
Introduction to Ancient Greek History (CLCV 205)Uploaded 20-11-08In this lecture, Professor Donald Kagan explores the earliest history of Greek civilization. He demonstrates how small agricultural enclaves eventually turned into great cities of power and wealth in the Bronze Age, taking as his examples first Minoan Crete and then Mycenaean Greece. He also argues that these civilizations were closely related to the great monarchies of the ancient Near East. He points out that the Mycenaean age eventually came to an abrupt end probably through a process of warfare and migration. Reconstructing the Mycenaean age is possible through archaeological evidence and through epic poetry (Homer). Finally, he provides an account of the collapse of the Mycenaean world, and explains how in its aftermath, the Greeks were poised to start their civilization over on a new slate.00:00 - Chapter 1. The Minoan Civilization08:58 - Chapter 2. Mycenaean Language and Writing16:07 - Chapter 3. The Citadel, Farmland, Burials and the Oil Trade26:29 - Chapter 4. Cultural Unity, Agriculture, Religious Authority33:41 - Chapter 5. Society and Economy39:05 - Chapter 6. Theories about the Fall of the Mycenaean World56:52 - Chapter 7. Results of the FallComplete course materials are available at the Open Yale Courses website: http://open.yale.edu/coursesThis course was recorded in Fall 2007. Learn more about your ad choices. Visit megaphone.fm/adchoices Learn more about your ad choices. Visit megaphone.fm/adchoices
Introduction to Theory of Literature (ENGL 300)Uploaded 01-09-09In this lecture on the postmodern psyche, Professor Paul Fry explores the work of Gilles Deleuze, and Felix Guattari. and Slavoj Žižek. The notion of the "postmodern" is defined through the use of examples in the visual arts and architecture. Deleuze and Guattari's theory of "rhizomatic" thinking and their intellectual debts are elucidated. Žižek's film criticism, focused on the relation between desire and need, is explored in connection with Lacan.00:00 - Chapter 1. Žižek, Deleuze, and the Political08:37 - Chapter 2. What Is Postmodernism?16:22 - Chapter 3. Postmodernism, Doubt, and Vision22:52 - Chapter 4. Dehumanization28:31 - Chapter 5. Deleuze, Guattari, and Lacan35:16 - Chapter 6. The Rhizome39:25 - Chapter 7. Žižek46:53 - Chapter 8. Holbein's The Ambassadors50:08 - Chapter 9. Language and DesireComplete course materials are available at the Open Yale Courses website: http://open.yale.edu/coursesThis course was recorded in Spring 2009. Learn more about your ad choices. Visit megaphone.fm/adchoices Learn more about your ad choices. Visit megaphone.fm/adchoices
The Civil War and Reconstruction (HIST 119)Uploaded 21-11-08Professor Blight offers a number of approaches to the question of southern distinctiveness. The lecture offers a survey of that manner in which commentators--American, foreign, northern, and southern--have sought to make sense of the nature of southern society and southern history. The lecture analyzes the society and culture of the Old South, with special emphasis on the aspects of southern life that made the region distinct from the antebellum North. The most lasting and influential sources of Old South distinctiveness, Blight suggests, were that society's anti-modernism, its emphasis on honor, and the booming slave economy that developed in the South from the 1820s to the 1860s.00:00 - Chapter 1. Introduction: The Southern Memory of the Civil War14:22 - Chapter 2. Similarities and Differences between the Antebellum North and South24:44 - Chapter 3. Reputation and Honor -- Characteristics of Old South Society31:27 - Chapter 4. The "Burden" of Southern History38:15 - Chapter 5. The South's Cotton Economy49:57 - Chapter 6. ConclusionComplete course materials are available at the Open Yale Courses website: http://open.yale.edu/coursesThis course was recorded in Spring 2008. Learn more about your ad choices. Visit megaphone.fm/adchoices Learn more about your ad choices. Visit megaphone.fm/adchoices