Napisane przez: charlie - 29-12-2025, 08:48 - Forum: Propozycje
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English | 2017 | ISBN-10: 0691174555 | 304 pages| Epub (True) | 1 MB [/center]
A surprising and revealing look at what Americans really believe about taxesConventional wisdom holds that Americans hate taxes. But the conventional wisdom is wrong. Bringing together national survey data with in-depth interviews, Read My Lips presents a surprising picture of tax attitudes in the United States. Vanessa Williamson demonstrates that Americans view taxpaying as a civic responsibility and a moral obligation. But they worry that others are shirking their duties, in part because the experience of taxpaying misleads Americans about who pays taxes and how much. Perceived "loopholes" convince many income tax filers that a flat tax might actually raise taxes on the rich, and the relative invisibility of the sales and payroll taxes encourages many to underestimate the sizable tax contributions made by poor and working people.Americans see being a taxpayer as a role worthy of pride and respect, a sign that one is a contributing member of the community and the nation. For this reason, the belief that many Americans are not paying their share is deeply corrosive to the social fabric. The widespread misperception that immigrants, the poor, and working-class families pay little or no taxes substantially reduces public support for progressive spending programs and undercuts the political standing of low-income people. At the same time, the belief that the wealthy pay less than their share diminishes confidence that the political process represents most people.Upending the idea of Americans as knee-jerk opponents of taxes, Read My Lips examines American taxpaying as an act of political faith. Ironically, the depth of the American civic commitment to taxpaying makes the failures of the tax system, perceived and real, especially potent frustrations.
Napisane przez: charlie - 29-12-2025, 08:43 - Forum: Propozycje
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Biometrics: Principles, Modalities, Performance & Security
Published 12/2025
MP4 | Video: h264, 1920x1080 | Audio: AAC, 44.1 KHz
Language: English | Size: 7.74 GB [/center] | Duration: 6h 53m
Iris, Fingerprint, Ear, Hand, Signature, and Face Biometrics What you'll learn
Explain the fundamental principles, history, and motivations behind biometric identification and authentication systems.
Describe the architecture and operational workflow of biometric systems, including data acquisition, feature extraction, matching, and decision making.
Differentiate between physiological and behavioral biometric modalities and evaluate their suitability for various real-world applications.
Interpret and compute biometric performance metrics such as FAR, FRR, EER, ROC curves, and understand the trade-offs between security and usability.
Analyze sources of error and variability in biometric systems and assess how system thresholds affect recognition accuracy.
Explain enrollment processes, biometric database construction, and template management strategies and their impact on system performance.
Apply basic statistical and probabilistic reasoning to the design of trustworthy and reliable biometric systems.
Understand the theoretical foundations and practical challenges of signature recognition, including dynamic feature extraction and forgery detection.
Explain the complete face recognition pipeline and compare classical approaches with modern deep learning-based methods.
Describe the principles, system components, and algorithms used in iris recognition, including iris code generation and matching.
Explain fingerprint recognition fundamentals, including ridge patterns, minutiae extraction, and forensic applications.
Analyze hand-based biometric modalities such as hand geometry, palmprint, vein patterns, and thermal imaging, and compare their strengths and limitations.
Identify security threats and attack models targeting biometric systems, including presentation attacks and spoofing techniques.
Explain liveness detection methods and other countermeasures used to defend biometric systems against attacks.
Evaluate biometric systems from technical, ethical, and societal perspectives, including privacy, misuse, and regulatory concerns.
Analyze real-world biometric deployments and understand how practical constraints influence system design and performance.
Critically assess current trends and future directions in biometric security and identity technologies. Requirements
A basic background in computer science or engineering, with familiarity with concepts such as signal processing, pattern recognition, or machine learning is recommended but not strictly required. Description
This course contains the use of artificial intelligence. Some of the videos in this course were created using AI-assisted tools. These tools were used to professionally produce high-quality visuals and narration in order to make the learning process clearer, more engaging, and more efficient. All learning materials were carefully selected, organized, and updated by the instructor to reflect current knowledge and best practices. AI was used as a supportive technology, not as a substitute for subject-matter expertise, instructional design, or academic responsibility.Biometric technologies have become central to modern identity systems, powering authentication in smartphones, border control, law enforcement, healthcare, and digital security. Yet many courses only scratch the surface, focusing on applications without explaining how biometric systems actually work.This course provides a comprehensive and technically grounded introduction to biometric systems. You will learn the fundamental principles behind biometrics, explore major biometric modalities, understand how system performance is evaluated, and study security threats and countermeasures.The course begins with core concepts, including biometric system architecture, enrollment, database design, performance metrics, and error analysis. You will then explore key biometric modalities such as signature, face, iris, fingerprint, and hand-based biometrics, with clear explanations of their underlying techniques and challenges.A dedicated section focuses on biometric security, covering attack models, presentation attacks, spoofing, and liveness detection. Ethical concerns, misuse, and future trends in biometric identity systems are also discussed, providing a balanced technical and societal perspective.This course is designed for learners who want more than high-level descriptions-it emphasizes clarity, rigor, and practical understanding, making it suitable for academic study, research preparation, and professional development.What You'll Learn• Understand how biometric systems are designed and how they operate end to end• Compare physiological and behavioral biometric modalities• Interpret biometric performance metrics such as FAR, FRR, EER, and ROC curves• Analyze system errors, vulnerabilities, and trade-offs between security and usability• Understand signature, face, iris, fingerprint, and hand-based biometric technologies• Learn how biometric databases and enrollment processes affect performance• Identify biometric security threats, spoofing attacks, and countermeasures• Evaluate biometric systems from technical, ethical, and real-world perspectivesWhy Take This Course• Covers both theory and system-level understanding• Includes security, attacks, and defenses-often missing in other courses• Structured for academic, research, and professional audiences• Clear explanations without oversimplification• Suitable for students, engineers, and researchersCourse Requirements• Basic knowledge of computer science, engineering, or related fields• Familiarity with concepts such as pattern recognition or machine learning is helpful but not mandatory• No prior experience with biometric systems is requiredIf you want to understand biometric systems beyond surface-level explanations-how they work, how they fail, and how they are secured-this course will give you the depth and clarity you need.
• Undergraduate and graduate students in computer engineering, computer science, electrical engineering, biomedical engineering, or related fields who want to learn biometric identification and authentication systems in depth.,• Researchers and postgraduate students working in biometrics, pattern recognition, computer vision, machine learning, or cybersecurity who need a structured and comprehensive overview of biometric modalities, performance evaluation, and security issues.,• Engineers and developers interested in identity verification, authentication systems, or security technologies who want to understand how biometric systems are designed, evaluated, and protected against attacks.,• Professionals in cybersecurity, digital forensics, law enforcement, or border control who want to understand the technical foundations behind biometric technologies used in practice.,• Academics and instructors seeking well-organized material for teaching or reviewing biometric concepts, modalities, and system-level considerations.,• Learners preparing for advanced study or research in biometrics, AI-based recognition systems, or trustworthy digital identity technologies.,This course is best suited for beginner to intermediate learners who are comfortable with basic concepts in signal processing, machine learning, or computer vision, and who want to go beyond surface-level explanations into how biometric systems truly work.
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