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- README file for the example files nettalk.xxx
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-
-
- Description: The NETtalk network, a famous feedforward-network
- ============
-
- This network is a lookalike to the nettalk network, a famous
- feedforward-network, developed by T.J. Sejnowski and C.R. Rosenfeld:
-
- T.J. Sejnowski and C.R. Rosenfeld:NETtalk: a parallel network that
- learns to read aloud, The Johns Hopkins Univ. EE and
- Comp. Sc. Technical Report JHU/EECS-86/01, 32 pp., also in:
- J.A. Anderson, E. Rosenfeld, Neurocomputing, Foundations of Resarch,
- MIT Press, 1988
-
- The nettalk network given here is NOT the fully trained NETtalk
- network, but a lookalike with the same topology (same number of units,
- same connectivity, same number of weights). We use this network mainly
- for benchmarking, since the nettalk network has become a de facto
- standard benchmarking network.
-
-
- Pattern-Files: nettalk.pat
- ==============
-
- The pattern file nettalk.pat is NOT the original NETtalk pattern file
- but also a smaller lookalike with a similar statistical distribution
- of input bits set to '1'. See the paper cited above for the real
- NETtalk data and input/output coding.
-
- This pattern file, which we use both for training and test of 'raw
- speed' backpropagation benchmarks of SNNS on different machines,
- operating systems and compilers, consists of only 200 input patterns,
- whereas the original NETtalk data consists of 1000 input patterns
- taken from an even larger dictionary of approx. 20.000 input patterns.
- Since convergence of the algorithm doesn't matter in backpropagation
- implementation speed benchmarks this is no problem.
-
-
- Network-Files: nettalk.net
- ==============
-
- The nettalk network consists of
- 203 input units
- 120 hidden units
- 26 output units
- All layers are fully connected without shortcut connections.
-
-
- Config-Files: nettalk.cfg
- =============
-
- Since this is no 'real' application and data, it is not too
- interesting to view the network. The configuration file nettalk.cfg is
- for those who want to view it anyway.
-
-
- Hints:
- ======
-
- We usually call nettalk.net from the tool 'netperf', a benchmarking
- version of SNNS without graphical user interface but with the full and
- current SNNS kernel. It is supplied with SNNS in the tools directory.
- We usually train and test nettalk for 10 cycles. Since convergence is
- not important, the learning parameters can be set to arbitrary (small)
- values or even be set to 0.
-
- Performance numbers for SNNS supplied by external testers should best
- be obtained the same way. If you send us the training and recall speed
- of SNNS on your machine for this network, please specify in detail the
- SNNS version, machine model (maker, type), main memory size, operating
- system version, compiler and compiler optimization level at
- installation of SNNS.
-
-
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- End of README file
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-