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Toward a New Knowledge Society
 

Toward a New Knowledge Society

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Description of distributed knowledge, contrasted to traditional knowledge. Describes general knowledge as pattern recognition and particular knowledge as complex linkings of entities.

Description of distributed knowledge, contrasted to traditional knowledge. Describes general knowledge as pattern recognition and particular knowledge as complex linkings of entities.

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  • Really opening-mind presentation! Connected knowledge connecting people is the key of new knowledge society. I like the creative way you connected subjects from different disciplines.
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    Toward a New Knowledge Society Toward a New Knowledge Society Presentation Transcript

    • Stephen Downes VENUS Seminars Gebruary 14, 2007 Toward a Future Knowledge Society
    • Once upon a time there was order We had two types of knowledge…
    • Universal Things like…. - Laws of Nature - Essential natures of things - Mathematical and logical theorems Plato
    • Concrete Particular
      • Things like:
      • circumstances
      • instances
      • applications
    • It was the good old H-D Model (Hypothetico-Deductive Model) Hempel
      • Based on:
        • Observation
        • - Generalization
        • - Prediction
        • - Verification
          • (or falsification)
      Popper
      • The world
      • is a totality of facts,
      • not things
          • (we still believe this, don’t we?)
      Wittgenstein
    • It has all fallen apart… Feyerabend
    • 1951
      • Quine’s Two Dogmas of Empiricism
        • - Analytic vs Synthetic
        • - Reductionism
      Quine
    • 1962 The Structure of Scientific Revolutions Paradigm shift Incommensurability World View
          • (In International Encyclopedia of Unified Science )
          • (Oh, the irony)
      Kuhn
    • http://home.uchicago.edu/~yli5/Flash/Fire.html We didn't start the fire It was always burning, since the world's been turning Joel
    • Enter the Network Everything is connected to everything else (Theory-laden data) http://dsv.su.se/~kjellman/e-subjectoriented.htm Lakatos
    • Enter the Network It is impossible to predict anything (Chaos theory, strange attractors) Lorenz http://www.imho.com/grae/chaos/chaos.html
    • Enter the Network It is the breakdown of order (Postmodernism, ethnocentricity) (Cluetrain, We The Media) Derrida http://www.cluetrain.com/
    • Knowledge management? Into this picture rides… the idea… ‘ Capture’ tacit knowledge … and then codify it Hodgins Learning Objects
    • http://www.learningspaces.org/n/papers/objections.html
    • You Can’t Go Back Again
      • personal knowledge
      Depends on Context Ineffable You can’t generalize it You can’t put it into words - tacit knowledge Polanyi
    • Patterns in the Mesh the knowledge is in the network the knowledge is the network Old: universals – rules – categories New: patterns – patterns – similarities Tenenbaum http://www.bbsonline.org/Preprints/OldArchive/bbs.tenenbaum.html
    • stands for? Or is caused by? Distributed Representation = a pattern of connectivity Hopfield
    •  
    • The theory… Concepts are not words … They are patterns in a network (like the mind, like society) There is no specific place the concept is located – it is distributed as a set of connections across the network Other concepts are embedded in the same network they form parts of each other, they effect each other
    • Self-organizing systems acquire new structure without specific interference from the outside. They exhibit qualitative macroscopic changes such as bifurcations or phase transitions. http://www.christianhubert.com/hypertext/self_organization.html The connections can self-organize
    • The way things connect is reflective of the properties of those things
    • They obey the laws of physics (Force patterns in construction… http://paginas.ufm.edu/arquitemas/ffconclusions03.html )
    • Three Types of Organization…
      • Hebbian associationism
        • based on concurrency
      • Back propagation
        • based on desired outcome
      • Boltzman
        • based on ‘settling’, annealing
    • Particulars…
      • Patterns – the global view – nice, but not very useful
      • What does the network look like when you’re in the network?
    • Easy Answers…
      • It looks like the internet…
        • Like open source
        • Like Social Networks
        • Like blogs and blogging
        • Like wikis and collaborative writing
        • Like tagging and Digg and…
      • It looks like Web 2.0
      Stallman
    • Harder Answers
      • From the inside, you see the tubes
      • Look for connections, interactions
        • (or more concretely, XML and APIs)
      It's not a truck. It's a series of tubes. And if you don't understand those tubes can be filled and if they are filled, when you put your message in, it gets in line and its going to be delayed by anyone that puts into that tube enormous amounts of material, enormous amounts of material.
    • It’s about the links (Something the designers of LOM completely forgot) Berners-Lee
    • Complex Answers
      • Example:
      • How do you know this will be good?
      • Because, in the past:
        • People like you…
        • … expressed satisfaction
        • … with things like this
          • (this is the basis for recommender systems)
          • (like Amazon)
      External, universal criteria of goodness VS Bezos
    • It’s Chaos!
      • No principles or rules describing ‘quality’
        • Individual preferences only
        • No rubric or metric
        • No ‘peers’ or ‘committee of experts’
        • Evaluations are not an aggregation – no votes
      Suroweicki
    • Inside the pipes… Complex answers link different types of data User Profiles Resource Profiles Evaluations
    • Each type of data is a feature set….
        • Eg. Users described in FOAF or XFN
        • Eg. Resources described in LOM or RSS
        • Eg. Evaluations described in… ???
          • (well, it’s not all built yet)
    • That’s how we measure similarity Which features? That depends on salience which is why context is important Tversky
    • Resource Profiles
      • Multiple vocabularies
          • (eg. for different types of objects)
      • Multiple authors
          • (eg. content author, publisher, classifier)
      • Distributed metadata
        • located in various repositories
        • metadata models
        • analogy: personal information
      http://www.downes.ca/files/resource_profiles.htm
    • Metadata
    • What Will We See?
      • Beyond recommendations to…
        • Classifications (tagging)
        • Valuations (markets, Blogshares)
      • New types of knowledge yet to be discovered
    • Knowledge is like recognition Learning is like perception the acquisition of new patterns of connectivity through experience Hume
    • Pattern Recognition… Gibson
    • You already know this phenomenon, you’ve already seen it Emergent Learning http://growchangelearn.blogspot.com/2007/02/emergent-learning.html Tom Haskins &quot;Now I get it&quot; A-ha! &quot;Out of the blue&quot; &quot;My mind leaped&quot; &quot;Did an about-face&quot; &quot;Shut up and did it&quot; Sudden breakthrough http://www.downes.ca/files/osn.html
    • Knowledge is recognition It’s a belief you can’t not have Like after you’ve found Waldo Waldo
    • http://www.sund.de/netze/applets/BPN/bpn2/ochre.html Pattern recognition is based on similarity between the current phenomenon and previously recognized phenomena
    • What we want is for students to recognize patterns in existing networks – in communities of experts, communities of practice That’s why we model and demonstrate
    • But what kind of network do we want to model for our students? For that matter, what kind of network do we want for ourselves? To maximize knowledge? To little connection and in formation never propagates Too much connection and information propagates too quickly Varela
    • The internet itself illustrates a sound set of principles , grounded by two major characteristics: simple services with realistic scope. Cerf
    • Effective networks are… Decentralized Distributed Disintermediated Disaggregated Dis-Integrated Democratic Dynamic Desegregated http://it.coe.uga.edu/itforum/paper92/paper92.html
    • Democratic = The Semantic Condition
      • Reliable networks support…
      • Autonomy
      • Diversity
      • Openness
      • Connectivity
      Mill http://www.downes.ca/post/33034
    • http://www.downes.ca Downes