68 lines
1.5 KiB
Perl
68 lines
1.5 KiB
Perl
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%%% -*- Mode: Prolog; -*-
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%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
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% ProbLog program describing modelling a simplified version of the ALARM network
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% (running example used in the paper [Gutmann et. al, ECML 2011])
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% $Id: alarm.pl 6416 2011-06-10 14:38:44Z bernd $
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%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
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%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
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% example for parameter learning with LFI-ProbLog
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%
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% training examples are included at the end of the file
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% query ?- do_learning(20).
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% will run 20 iterations of learning with default settings
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%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
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:- use_module('../problog').
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:- use_module('../problog_lfi').
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% uncomment to see what is happening
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:- set_problog_flag(verbosity_learning,5).
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%%%%%%%%%%%%%%%%%%%%%%%%%%%%
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%%% Probabilistic Facts %
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%%%%%%%%%%%%%%%%%%%%%%%%%%%%
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% the t(_) identifies them as tunable, that is,
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% the probabilities are to be learned
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t(_) :: burglary.
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t(_) :: earthquake.
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t(_) :: hears_alarm(_Person).
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%%%%%%%%%%%%%%%%%%%%%%%%%%%%
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%%% Background Knowledge %
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%%%%%%%%%%%%%%%%%%%%%%%%%%%%
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% the background knowledge, read as myclause(Head,Body)
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% clauses are assumed to be range-restricted
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myclause(person(mary), true).
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myclause(person(john), true).
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myclause(alarm, burglary).
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myclause(alarm, earthquake).
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myclause(calls(Person), (person(Person),alarm,hears_alarm(Person))).
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%%%%%%%%%%%%%%%%%%%%%%%%%%%%
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%%% Training examples %
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%%%%%%%%%%%%%%%%%%%%%%%%%%%%
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example(1).
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example(2).
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%%%% Example 1
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known(1,alarm,true).
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%%%% Example 2
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known(2,earthquake,false).
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known(2,calls(mary),true).
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