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+====== Belief network specification ======
+{{tag>networks}}
+===== Description =====
+A specification of the belief network
+**Source**:  PROLOG programming for artificial intelligence, 3rd Edition, Harlow, 2001, ISBN 0-201-40375-7.
+===== Download =====
+Program source code: {{belief_network_specification.pl}}
+===== Listing =====
+<code prolog>
+% Figure 15.12  A specification of the belief network of Fig. 15.10 as
+% expected by the program of Fig. 15.11.
+% Belief network "sensor"
+parent( burglary, sensor).    % Burglary tends to trigger sensor
+parent( lightning, sensor).   % Strong lightning may trigger sensor
+parent( sensor, alarm).
+parent( sensor, call).
+p( burglary, 0.001).
+p( lightning, 0.02).
+p( sensor, [ burglary, lightning], 0.9).
+p( sensor, [ burglary, not lightning], 0.9).
+p( sensor, [ not burglary, lightning], 0.1).
+p( sensor, [ not burglary, not lightning], 0.001).
+p( alarm, [ sensor], 0.95).
+p( alarm, [ not sensor], 0.001).
+p( call, [ sensor], 0.9).
+p( call, [ not sensor], 0.0).
+</code>
+===== Comments =====

pl/prolog/pllib/belief_network_specification.txt · ostatnio zmienione: 2019/06/27 15:50 (edycja zewnętrzna)

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