01259naa a2200169 a 450000100080000000500110000800800410001910000170006024500280007726000090010530000130011452008300012765000140095765000140097170000160098577300880100110036392007-08-17       1983    bl uuuu     u00u1 u    #d1 aADDIS, T. R.  aKnowledge for machines.  c1983  ap.17-30.  aKnowledge is examined from both the abstract and technological aspects. An approach to the abstract problem of defining knowledge is developed by distinguishing knowledge structures from meaning structures, and connecting knowledge with justification. The essentials of the three major knowledge representation schemes - semantic nets, production systems and frames - are examined. The conclusion is drawn that research is neede on the role of the users within a complete system. To construct a system with knowledge requires the ability to elicit knowledge and to construct an appropriate abstraction at a level of resolution adequate to deal with the set of expected situations for which the system was designed. New skills will have to be evolved and a new breed of computer expert ("knowledge engineer") will be required.  acomputers  aknowledge1 aJOHNSON, L.  tIn: THE FIFTH generation computer project. Maidenhead: Pergamon Infotech, 1983. 83.