Conference heron::euro_swas_ai

288.0. "I: Digital funds external AI research" by ULYSSE::ROACH (TANSTAAFL !) Mon Feb 25 1991 17:39

Digital is serious about artificial intelligence, at least to the extent of
funding external research in the subject.  This weekend I read an article
about some research which, it turned out when I read the final credit at
its end, had been partly funded by Digital (External Research Agreement
768).  For the extremely curious, see below.

---Pete



Identification of the �H-NMR Spectra of Complex Oligosaccharides with
Artificial Neural Networks
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Bernd Meyer et al.
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Artificial neural networks can be used to identify hydrogen nuclear mag-
netic resonance (�H-NMR) spectra of complex oligosaccharides.  Feed-forward
neural networks with back-propagation of errors can distinguish between
spectra of oligosaccharides that differ by only one glycosyl residue in
twenty.  The artificial neural networks use features of the strongly
overlapping region of the spectra (hump region) as well as features of the
resolved regions of the spectra (structural reporter groups) to recognize
spectra and efficiently recognized �H-NMR spectra even when the spectra
were perturbed by minor variations in their chemical shifts.  Identifica-
tion of spectra by neural network-based pattern recognition techniques
required less than 0.1 second.  It is anticipated that artificial neural
networks can be used to identify the structures of any complex carbohydrate
that has been previously characterized and for which a �H-NMR spectrum is
available.