nn

3 definitions found

nn - Free On-line Dictionary of Computing (26 May 2007) :

  artificial neural network
  neural nets
  neural network
  neuron
  NN
  
     <artificial intelligence> (ANN, commonly just "neural network"
     or "neural net") A network of many very simple processors
     ("units" or "neurons"), each possibly having a (small amount
     of) local memory.  The units are connected by unidirectional
     communication channels ("connections"), which carry numeric
     (as opposed to symbolic) data.  The units operate only on
     their local data and on the inputs they receive via the
     connections.
  
     A neural network is a processing device, either an
     algorithm, or actual hardware, whose design was inspired by
     the design and functioning of animal brains and components
     thereof.
  
     Most neural networks have some sort of "training" rule whereby
     the weights of connections are adjusted on the basis of
     presented patterns.  In other words, neural networks "learn"
     from examples, just like children learn to recognise dogs from
     examples of dogs, and exhibit some structural capability for
     generalisation.
  
     Neurons are often elementary non-linear signal processors (in
     the limit they are simple threshold discriminators).  Another
     feature of NNs which distinguishes them from other computing
     devices is a high degree of interconnection which allows a
     high degree of parallelism.  Further, there is no idle memory
     containing data and programs, but rather each neuron is
     pre-programmed and continuously active.
  
     The term "neural net" should logically, but in common usage
     never does, also include biological neural networks, whose
     elementary structures are far more complicated than the
     mathematical models used for ANNs.
  
     See Aspirin, Hopfield network, McCulloch-Pitts neuron.
  
     Usenet newsgroup: news:comp.ai.neural-nets.
  
     (1997-10-13)
  

  nn
  
     <tool, messaging> A terminal based program for reading
     Usenet news by Kim F. Storm <storm@texas.dk>, Texas
     Instruments A/S, Denmark.
  
     nn lets you decide which of the many news groups you are
     interested in, and unsubscribe to those which don't interest
     you.  nn lets you select articles to read from a menu in each
     of the groups you subscribe.  nn sorts and presents new
     articles very quickly because it uses its own local database
     to maintain all the necessary information (this database is
     built and maintained by the nnmaster program).
  
     The NNTP support was designed and implemented by Ren'e
     Seindal, Institute of Datalogy, University of Copenhagen,
     Denmark.
  
     E-mail: <nn-bugs@dkuug.dk> (bugs, fixes, suggestions, etc.)
  
     Usenet newgroup: news:news.software.nn.
  
     (1995-12-04)
  

nn - V.E.R.A. -- Virtual Entity of Relevant Acronyms (June 2006) :

  NN
         Neural Network (NN)