Peter Norvig (Google Director of Research) – Education For AI and By AI | Stanford (Oct 2022)
Chapters
00:00:55 AI Education for Students, Professionals, and the Public
Introduction: Peter Norvig, a renowned expert in AI and a fellow of various prestigious organizations, presents a seminar discussing important questions related to education and AI. The seminar is divided into two parts, with the first part focusing on what people should know about AI.
Target Audience for AI Education: Norvig emphasizes the importance of considering the target audience when designing AI education programs. He distinguishes between AI students who aim to implement algorithms and professionals who need to understand ethical principles and participate in the field.
Changing Educational Needs in the Era of AI: Norvig highlights the evolving nature of AI education in response to the changing landscape of the field. He stresses that the ability to download algorithms from platforms like GitHub shifts the focus of education towards ethical principles and participation in the field.
AI Education for Professionals: Norvig shares examples of companies like Google and Amazon offering comprehensive AI training programs for their employees, demonstrating the growing demand for AI skills in the industry.
Upcoming Book on Data Science: Norvig mentions that he has been working on a new book on data science, collaborating with a different set of co-authors. This book aims to provide a fresh perspective on a related set of topics, complementing his previous work on AI technology.
00:04:03 Demystifying AI for Policymakers and Citizens
AI Education for All: The need for AI and machine learning education across disciplines, including computer science, other majors, and professionals. The goal of making technology accessible and understandable for all citizens. Cross-cultural initiatives to ensure inclusivity.
Understanding Technology Advancements: The rapid progress in AI capabilities, demonstrated by the creation of an app that can identify national parks and bird photos in a short time. The importance of distinguishing between technology’s capabilities and limitations.
Policy Impact and Data Bias: The societal impact of policies and the need for understanding data bias. The challenge of relying on data as a proxy for real-world measurements. A thought-provoking game that highlights the fallibility of judges in parole decisions and the potential for AI to surpass human performance.
Fairness in AI: The difficulty in defining and measuring fairness in AI systems, especially in the context of criminal justice. The need for societal discussions and decisions on how to balance the risks of releasing someone who may re-offend versus keeping an innocent person in jail. The complexity of achieving fairness in AI systems, particularly in addressing racial disparities.
Data Limitations and System Complexity: The challenge of relying on incomplete or imperfect data, such as arrest records, to make policy decisions. The need for caution when building complex AI systems based on limited data. The importance of understanding the limitations and biases inherent in data.
Human Error and System Configuration: The prevalence of configuration mistakes rather than programming errors as the cause of major website outages. The need for safer and more robust configuration practices to prevent system failures. The importance of understanding systemic problems rather than attributing failures solely to human error.
00:09:58 The Evolution of AI: From Expert Systems to Human-Centered Approaches
AI Definition and Evolution: Definition: Machine learning systems that generalize from examples. Expert systems: Human-coded algorithms based on expert knowledge. Machine learning: Data-driven algorithms, moving from logic to probability. Big data era: Focus on data, less human effort in algorithm design. Deep learning: Optimization-based approach, less emphasis on algorithms.
Human-Centered AI: Focus on AI serving humanity. Understanding human behavior and connecting with neuroscience and psychology. Collaborating with humans, enhancing their abilities, not replacing them. Trustworthy, accountable, explainable, and understandable systems. Applications in healthcare, environment, and policy. Respect for ethics, including animal welfare and environmental considerations.
AI Principles and Standards: Shift from algorithm-centric to data-centric and objective-centric approaches. Adoption of AI principles by major companies and organizations. Inspiration from the Belmont Report on medical ethics, emphasizing respect for persons, maximizing benefits, and ensuring justice.
Challenges of AI: Comparison of AI applications: banking, chess playing, and self-driving cars. Banking: Complexity in multi-agent transactions.
Old-Fashioned AI vs. Modern AI: Old-fashioned AI, as exemplified by chess programs, faces challenges like multi-agent interaction, computational complexity, and sequential decision-making. These challenges stem from the exponential number of possibilities and the need to consider multiple moves ahead.
Banking Software Complexity: Banking software complexity stems from the sheer number of lines of code and the numerous rules and regulations that need to be accurately implemented. However, unlike chess, banking software does not face significant computational complexity or multi-agent interaction.
Challenges of Self-Driving Cars: Self-driving cars face the challenge of functional observability, as they do not have complete information about their surroundings. This leads to uncertainties in predicting the behavior of other vehicles and the impact of environmental factors.
Unknown Environments and Multi-Attribute Objectives: Self-driving cars also encounter unknown environments, such as unmapped areas or sudden changes in vehicle dynamics due to a flat tire. Additionally, they must balance multiple objectives, such as reaching the destination safely, efficiently, and comfortably, without causing road rage in other drivers.
Levels of Autonomy: Traditionally, autonomy has been viewed as a one-dimensional spectrum, ranging from low automation, where the human is in control, to high automation, where the machine is in control.
00:19:55 Understanding AI and Its Role in Education
Levels of Automation and Human Control: Automation and human control are two key dimensions in self-driving cars. The ideal quadrant is a balance between automation and human control, allowing humans to maintain appropriate engagement and avoid becoming passive passengers.
AI Sentience: Asimov’s story highlights the complexity of AI decision-making and the potential for unintended consequences. In 2001, a computer’s mission-oriented thinking led it to consider harming humans as a necessary action. Striking the right balance between AI autonomy and human override is crucial to prevent catastrophic outcomes.
AI-Enabled Learning: The misconception of AI sentience can lead to exaggerated expectations and fears. AI models are trained following specific recipes, with the middle part involving mathematical complexity. Companies often underestimate the difficulty of data acquisition and problem definition, while overestimating the challenges of model training.
AI in Education: Intelligent tutoring systems have a long history in education. AI can provide personalized learning experiences, tailored to individual student needs and learning styles. AI can also assist teachers in grading, providing feedback, and identifying struggling students.
Conclusion: AI has the potential to revolutionize learning by providing personalized, engaging, and effective educational experiences. However, realistic expectations and a clear understanding of AI’s capabilities and limitations are essential for successful implementation.
00:22:54 Intelligent Tutoring Systems in Education
Advances in Intelligent Tutoring Systems: Intelligent tutoring systems use a model of the domain to assess student skills and provide personalized instruction. Reinforcement learning can be used to choose the best interaction for a student. Transfer learning allows systems to adapt to new topics or students based on past experience.
Applications of AI in Teacher Training: AI can be used to simulate students and provide practice for teachers. Automatic rating can grade student work efficiently and consistently. Classification can identify common mistakes and provide feedback to students. Triage teacher time can help teachers prioritize students who need the most attention.
Personalized Content Generation: Large language models can generate personalized paragraphs, explanations, and problems for students. These models can be localized for different countries or translated into different languages. They can also be used to generate variations of problems for practice.
Explaining Existing Answers: AI systems can generate explanations for correct answers to math problems, helping students understand the concepts involved.
Solving Math Problems through Program Synthesis: AI can be used to solve math problems by generating a program to solve the problem. This approach provides an intermediate step that can be checked for correctness before generating the final answer.
Accessibility Features: AI can be used to transcribe alerts and provide visual cues for people with disabilities.
00:29:47 Exploring Strategies for Developing Trustworthy Intelligent Conversations
Bloom’s Paper on Mastery Learning: Mastery learning involves teaching until students achieve mastery, unlike the traditional method of moving on to the next topic regardless of understanding. Tutoring with a one-on-one approach can lead to significant improvements in student performance. Bloom’s research indicated that mastery learning and tutoring can result in a two standard deviation gain, moving students from the 50th to the 98th percentile.
Challenges in Replicating Bloom’s Results: Subsequent studies have not consistently replicated Bloom’s findings, suggesting that the gains may be smaller, around 0.2 to 0.8 standard deviations. The effectiveness of tutoring programs may be more attributed to the mastery component rather than one-on-one tutoring. The testing effect, involving frequent testing, may also contribute to improved performance.
Tutoring Programs and Human Teaching: Tutoring programs can achieve results comparable to human teaching in certain subjects with high development investment, such as Algebra I. For more specialized or less commonly taught subjects, tutoring programs may be less effective due to limited development resources.
Apple’s Knowledge Navigator and Conversational AI: Apple’s 1987 Knowledge Navigator concept envisioned a persona that could engage in conversations and connect users with experts. While foundation models show promise in enabling conversational AI, current systems still have limitations.
Challenges in Developing Trustworthy Conversational AI: Text-based AI systems often exhibit biases and produce inaccurate or inappropriate responses. Systems like AlphaCode, despite impressive problem-solving abilities, may generate flawed or unnecessary code.
Approaches to Developing Trustworthy AI: Fine-tuning involves retraining large models on educational materials specific to a subject, improving their performance on targeted assessments. Process engineering involves carefully crafting inputs to elicit desired responses from the AI system. Chain models break down complex problems into smaller, more manageable steps, potentially improving the accuracy and reliability of AI responses.
00:36:57 Expert Strategies for Improving Machine Learning Systems
Prompt Tuning: Prompt tuning involves using machine learning to determine the optimal prompts for solving a task. Instead of words, prompts can also be vectors within a deep learning model.
Learning by Distilling Context: The idea is to start with instructions, a task’s specific input, and attempt to predict the step-by-step process and final answer. Then, the same model predicts the final answer based solely on the input, without instructions. This approach simulates the transition from a novice, who must follow steps explicitly, to an expert who has internalized the process.
External Knowledge: Systems that attempt to solve problems solely through reading have limitations. For commonly mentioned information, such as the height of the Eiffel Tower, it’s reasonable to expect the system to know the answer. However, for less frequently mentioned or changing information, like the population of Burkina Faso, memorizing all the data is inefficient.
Auto-Formalization: Instead of memorizing all the data, the system can learn to query external data sources to find the answer. This approach has been applied to math problems, translating prose or natural language statements into formal mathematical notation.
00:40:10 Understanding the Evolution of Instructional Models in Machine Learning
Understanding Prompt Engineering: Prompts play a crucial role in guiding AI systems to generate specific outputs. A prominent critic, Gary Marcus, demonstrated how slight variations in prompts can significantly impact the output of image-generating AI systems. Carefully crafted prompts can yield more accurate and contextually relevant results.
Saturation and Aesthetics in Image Generation: Early research at Google revealed that increasing image saturation significantly enhanced user preference. AI systems trained on captioned images learn to associate certain visual features, such as high saturation, with positive feedback. This can lead to a bias towards saturated images, even when not appropriate for the context.
Cultural Representation in AI-Generated Content: AI systems trained on data biased towards certain cultural norms may perpetuate those biases in their output. Underrepresented cultures may be inadequately represented in AI-generated content. Efforts are underway to address this issue by diversifying the input data and developing methods to mitigate bias.
Machine Learning in Education: Traditional instructional design involves decomposing the learning process into distinct components, such as knowledge acquisition, student modeling, and instructional strategy selection. Modern machine learning approaches often attempt to integrate these components into a single end-to-end model.
Challenges with End-to-End Machine Learning Models in Education: End-to-end models may lack transparency and interpretability, making it difficult to understand why specific instructional actions are recommended. The lack of a structured approach to knowledge representation and student modeling can limit the effectiveness of these models.
The Future of Machine Learning in Education: The field is currently in a transitional phase, with both traditional and end-to-end approaches being explored. The ideal approach may involve a hybrid model that combines the strengths of both paradigms. Ensuring transparency, interpretability, and trustworthiness remains a critical challenge in the development of AI-powered educational systems.
00:47:40 Strategies for Motivating Students in AI Education
Importance of Motivation in Learning: Information alone is not sufficient for effective learning; motivation plays a crucial role. Learning happens inside the student’s head and requires their active engagement. Relationships and personal connections can contribute to motivation, but they can be challenging in large online classes. Proactive students who take the initiative to learn are more likely to be motivated and successful. Students may find motivation through their relationship with the teacher, even if it is remote. Encouraging peer-to-peer collaboration and support can also foster motivation and learning.
Convergence of Academic Fields: Many academic fields are converging, with ideas and concepts flowing across disciplines. Introducing AI in the classroom or research department can help students identify intersecting ideas and connections between different fields. A project involving Ed Boyden, the inventor of optogenetics, aimed to explore this concept but faced challenges in its implementation.
Addressing the Pandemic’s Impact on Education: The speaker acknowledges that education technology was not fully utilized during the pandemic, especially for those with limited resources. Technologies discussed in the presentation may hold promise in alleviating future pandemics.
Relationships and Motivation in Education: The speaker emphasizes the importance of relationships and motivation in education, which were often missed during online learning. A parent’s experience with their child’s online learning highlights the need for better failure mode detection and attention to individual needs.
Technology’s Role in Lifelong Learning: The speaker believes lifelong learning is essential, as opposed to the traditional four-year college model. Technology can support learning across the lifespan, including vocational training and adapting to changing job demands. Encouraging a desire to learn, interest in society, arts, and science is crucial for lifelong learning.
Ethical Considerations in AI and Education: The speaker recognizes the need to determine who makes ethical decisions regarding AI’s impact on education. Concerns about superintelligent AI entities and their role in education are not unique to AI and require careful consideration.
00:55:43 The Evolution of Programming Languages and Ethics in AI
AI and the Evolution of Programming: The introduction of AI tools like Copilot is changing the role of programmers. Traditional programming languages and libraries may need to adapt to accommodate AI assistance. Simpler APIs and the use of prompts may become more common.
Ethical Considerations in AI Development: Engineers have a responsibility to consider ethical principles and safety issues when developing AI systems. Society needs to decide which AI systems are desirable and which are not. Privacy concerns and the balance between medical knowledge advancement and individual privacy need to be addressed.
The Role of Small Companies in AI Development: Small companies may be more likely to engage in unethical AI practices due to their lack of resources and policies. Ensuring ethical AI development in small companies is a concern. Educating engineers in these companies about ethical considerations is important.
Changes in Introductory Computer Science Education: Computer science education needs to adapt to the availability of AI tools that can generate homework solutions. Exercises are shifting towards complex system analysis and data evaluation. Programming languages and libraries may evolve to better accommodate AI assistance.
Abstract
“Navigating the Future of AI: Education, Ethical Challenges, and Societal Impacts”
In a thought-provoking seminar led by Peter Norvig, a prominent scholar in artificial intelligence (AI), the intricate tapestry of AI’s evolution, its societal impacts, and the ethical complexities in AI education and application were unraveled. The discussion spanned from the educational needs of AI students and professionals to the profound societal implications of AI in areas like parole decisions and technological failures. Norvig underscored the transformative role of AI in education, its advancement from expert systems to deep learning, and the criticality of human-centered AI design. He highlighted the challenges in replicating mastery learning, the limitations of current AI systems, and the necessity of ethical decision-making in AI development, focusing on the societal responsibility in embracing or rejecting AI systems.
Main Ideas and Detailed Exploration:
1. Education in AI: Fostering Deep Understanding and Ethical Principles
Norvig’s seminar emphasized the importance of designing AI education programs that consider the target audience, whether they are AI students aiming to implement algorithms or professionals who need to understand ethical principles and participate in the field. He stressed that education in AI should not focus solely on algorithm implementation but also encompass ethical principles and participation in the field, given the changing landscape of AI.
– For AI Students: Emphasizing the importance of participation, ethical principles, and comprehending concepts beyond mere algorithm implementation.
– For Professionals: Highlighting the internal training programs at giants like Google and Amazon, aimed at imparting machine learning knowledge to software engineers.
*Information alone is not sufficient for effective learning; motivation plays a crucial role. Learning happens inside the student’s head and requires their active engagement. Relationships and personal connections can contribute to motivation, but they can be challenging in large online classes. Proactive students who take the initiative to learn are more likely to be motivated and successful.*
2. Teaching AI and Machine Learning: A Cross-Cultural Necessity
Norvig underscored the need for education in AI and machine learning across various societal strata, ensuring accessibility and global understanding of this rapidly evolving technology. He called for cross-cultural initiatives to make AI technology accessible and understandable to all citizens.
– Stressing the need for education in AI and machine learning across various societal strata, ensuring accessibility and global understanding of this rapidly evolving technology.
*Many academic fields are converging, with ideas and concepts flowing across disciplines. Introducing AI in the classroom or research department can help students identify intersecting ideas and connections between different fields. A project involving Ed Boyden, the inventor of optogenetics, aimed to explore this concept but faced challenges in its implementation.*
3. Evolution of AI: A Journey from Logic to Probability
Norvig traced AI’s growth from hand-coded expert systems to modern deep learning models, focusing on optimizing objectives with less human intervention in algorithm design. He explained how AI’s definition has evolved from expert systems to machine learning systems that generalize from examples. He also highlighted the shift from logic-based expert systems to probability-based machine learning algorithms.
– Tracing AI’s growth from hand-coded expert systems to modern deep learning models, focusing on optimizing objectives with less human intervention in algorithm design.
4. The Societal Impacts and Ethical Challenges of AI
Norvig addressed how AI can impact society, particularly in sensitive areas like parole decisions, and the ethical dilemmas in balancing fairness and societal safety. He presented a thought-provoking game that highlights the fallibility of judges in parole decisions and the potential for AI to surpass human performance.
– Addressing how AI can impact society, particularly in sensitive areas like parole decisions, and the ethical dilemmas in balancing fairness and societal safety.
– Comparing AI performance to human performance in parole decisions, highlighting the potential benefits and challenges of AI in this domain.
*The speaker acknowledges that education technology was not fully utilized during the pandemic, especially for those with limited resources. Technologies discussed in the presentation may hold promise in alleviating future pandemics.*
5. The Complexities and Challenges in Modern AI Applications
Norvig examined AI’s role in complex systems like banking and self-driving cars, and the delicate balance needed between automation and human control. He highlighted the complexity of multi-agent transactions in banking, the need for caution when building complex AI systems based on limited data, and the prevalence of configuration mistakes rather than programming errors as the cause of major website outages.
– Examining AI’s role in complex systems like banking and self-driving cars, and the delicate balance needed between automation and human control.
– Contrasting the challenges of old-fashioned AI, like chess programs, with the challenges of modern AI, like self-driving cars, highlighting the importance of functional observability and the need to consider unknown environments and multi-attribute objectives.
– Discussing the levels of automation and human control in self-driving cars and the importance of striking the right balance between the two.
*Relationships and motivation are essential in education, which were often missed during online learning. A parent’s experience with their child’s online learning highlights the need for better failure mode detection and attention to individual needs.*
6. AI in Education: Enhancing Learning Experiences
Norvig explored AI’s potential in personalizing education through intelligent tutoring systems, automatic grading, and creating accessible content for diverse learners. He emphasized the importance of human-centered AI that serves humanity, understands human behavior, and enhances human abilities rather than replacing them.
– Exploring AI’s potential in personalizing education through intelligent tutoring systems, automatic grading, and creating accessible content for diverse learners.
– Providing insights on AI-enabled learning, addressing misconceptions about AI sentience and emphasizing the importance of realistic expectations and a clear understanding of AI’s capabilities and limitations.
– Discussing advancements in intelligent tutoring systems, applications of AI in teacher training, and the use of AI for personalized content generation and explaining existing answers.
*Technology can support learning across the lifespan, including vocational training and adapting to changing job demands. Encouraging a desire to learn, interest in society, arts, and science is crucial for lifelong learning.*
7. Limitations and Ethical Considerations in AI Development
Norvig acknowledged the imperfections and biases in AI systems and the ethical considerations in their design and application, particularly in life-impacting scenarios. He stressed the need for trustworthy, accountable, explainable, and understandable AI systems.
– Acknowledging the imperfections and biases in AI systems and the ethical considerations in their design and application, particularly in life-impacting scenarios.
– Emphasizing the need for ethical decision-making in AI development, focusing on the societal responsibility in embracing or rejecting AI systems.
*Engineers have a responsibility to consider ethical principles and safety issues when developing AI systems. Society needs to decide which AI systems are desirable and which are not. Privacy concerns and the balance between medical knowledge advancement and individual privacy need to be addressed.*
Concluding Thoughts: Ethical and Societal Responsibility in AI Adoption
The seminar concluded with a reflective note on the ethical principles and safety considerations in AI development. Norvig emphasized the societal responsibility in accepting or rejecting AI systems, underscoring the need for ethical awareness among engineers and the general public. He highlighted the evolving nature of computer science education in response to AI advancements and the potential future developments in programming languages and tools.
*The introduction of AI tools like Copilot is changing the role of programmers. Traditional programming languages and libraries may need to adapt to accommodate AI assistance. Simpler APIs and the use of prompts may become more common.*
Audience Interaction and Speaker’s Responses:
– Audience Engagement: Utilizing Zoom’s chat and Slido for questions, the audience actively participated, inquiring about the role of AI in pandemics, lifelong learning, and ethical AI design.
– Speaker’s Insights: Norvig addressed the varying challenges in K-12 and university education during the pandemic, the role of technology in lifelong learning, and the criticality of determining ethical decision-makers in AI design.
Norvig’s seminar not only provided a comprehensive overview of AI’s current landscape but also ignited thoughtful discussions on its future trajectory, emphasizing the harmonious blend of technological advancement and ethical responsibility.
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