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CS 575 Spring 2010 2010-05 -15

CS 575 Spring 2010 2010-05 -15. K.V. Bapa Rao. Outline. Administrative Review of previous class Student Presentations Licklider’s papers RDF Overview General Discussion Summary Agenda for next meeting. Administrative. Student Presentations. Hanish Patel: Psychological

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CS 575 Spring 2010 2010-05 -15

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  1. CS 575Spring 20102010-05-15 K.V. Bapa Rao

  2. Outline • Administrative • Review of previous class • Student Presentations • Licklider’spapers • RDF Overview • General Discussion • Summary • Agenda for next meeting

  3. Administrative

  4. Student Presentations • Hanish Patel: Psychological • PratyushMishra: Robotics • Jwalant Desai: Social Networking • NiteenBorge: Accessibility/ Handicapped

  5. REMINDER: A [flexible] structure for our study • ‘Human issues’ is all-encompassing • Many interlocking dimensions • Human roles vis-à-vis the computer • User • Inventor / researcher • Visionary • Content creator • Hacker • Criminal • Business person • Wealth generator • … • Human-computer coupling • Symbiosis, tool, …

  6. A [flexible] structure for our study (contd) • Domains of human activity • Education, Entertainment, Play, Family, Reproduction, Art ,Wealth generation, Government, consumption, religion, philosophy, … • Values • Many values depend on role, domain, … • Absolute values? • Creativity, aesthetics, access, opportunity, freedom, spirituality, rationality, peace, brotherhood, prosperity, … • Vision, potentials, realities • Babbage’s Analytical Engine, Bush’s Memex, … • Pragmatics • Is it possible? How to get there? • Techniques, Design, Technology, • Scaling and emergent phenomena • Will a whole new thing emerge if huge numbers of humans interact with computers in a certain way? How do we understand that ‘thing’? • Other aspects, dimensions?

  7. Engelbart: Two-domain system • H-LAM/T

  8. JCR Licklider: Human-computer symbiosis • Issues • Speed mismatch • System requirements (hardware, memory, …) • Organizational mismatch: Memory organization (Information structuring and retrieval) • Language mismatch • What versus how • I/O mismatch • Voice, mobile, touch, …

  9. Computer as communication device • “In a few years, men will be able to communicate more effectively through a machine than face to face” • What is communication? • Two tape recorders exchanging data • Two humans having a meeting • Collaborative Modeling

  10. Licklider Contd--Economics • Models are complex • Simplification is risky and dangerous • Oversimplification • Premature simplification • Communicating models is expensive • Cost of not doing it?

  11. Licklider Contd • Computer as switch vs. interactor • Distributed intellectual resources • ‘critical creative mass’ • Vision of internet • Store-and-forward technology • Economics: billing models

  12. Vision of internet • Node • Mediator for online life: OLIVER • Social groups • Better for individual • Better for society

  13. A Concrete Example: Overview of RDF • http://www.w3schools.com/rdf/rdf_intro.asp

  14. Summary • Licklider thought through some of the issues of the human-computer interface modeled by Engelbart, at one extreme (symbiosis) • Impedance mismatch • RDF is a concrete example of the merger of communication and semantics for data (ref to Berners-Lee) • Licklider’svision of internet was based on a rich concept of communication Led to TCP/IP

  15. Agenda for next week

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