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yap-6.3/packages/ProbLog/problog/flags.yap
2010-04-05 12:20:59 +01:00

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Prolog

%%% -*- Mode: Prolog; -*-
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
%
% $Date: 2009-06-17 22:22:00 +0200 (Mi, 17 Jun 2009) $
% $Revision: 1550 $
%
% This file is part of ProbLog
% http://dtai.cs.kuleuven.be/problog
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% Copyright 2009 Katholieke Universiteit Leuven
%
% Authors: Luc De Raedt, Bernd Gutmann, Angelika Kimmig,
% Vitor Santos Costa
%
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% Main authors of this file:
% Angelika Kimmig, Vitor Santos Costa
%
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%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
:- module(flags, [set_problog_flag/2,
problog_flag/2,
problog_flags/0]).
:- style_check(all).
:- yap_flag(unknown,error).
:- use_module(print, [print_param/4,
print_sep_line/0]).
:- ensure_loaded(library(system)).
:- dynamic bdd_time/1, first_threshold/1, last_threshold/1, id_stepsize/1, prunecheck/1, maxsteps/1, mc_batchsize/1, mc_logfile/1, bdd_file/1, bdd_par_file/1, bdd_result/1, work_dir/1, save_bdd/1, problog_verbose/1, fast_proofs/1.
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
% global parameters that can be set using set_problog_flag/2
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
problog_flag(Flag,Option) :-
get_problog_flag(Flag,Option).
get_problog_flag(bdd_time,X) :-
bdd_time(X).
get_problog_flag(first_threshold,X) :-
first_threshold(X).
get_problog_flag(last_threshold,X) :-
last_threshold(L),
X is exp(L).
get_problog_flag(last_threshold_log,X) :-
last_threshold(X).
get_problog_flag(id_stepsize,X) :-
id_stepsize(L),
X is exp(L).
get_problog_flag(id_stepsize_log,X) :-
id_stepsize(X).
get_problog_flag(prunecheck,X) :-
prunecheck(X).
get_problog_flag(maxsteps,X) :-
maxsteps(X).
get_problog_flag(mc_batchsize,X) :-
mc_batchsize(X).
get_problog_flag(mc_logfile,X) :-
mc_logfile(X).
get_problog_flag(bdd_file,X) :-
bdd_file(X).
get_problog_flag(bdd_par_file,X) :-
bdd_par_file(X).
get_problog_flag(bdd_result,X) :-
bdd_result(X).
get_problog_flag(dir,X) :-
work_dir(X).
get_problog_flag(save_bdd,X) :-
save_bdd(X).
get_problog_flag(verbose,X) :-
problog_verbose(X).
get_problog_flag(fast_proofs,X) :-
fast_proofs(X).
%%%%%%%%%%%%
% BDD timeout in seconds, used as option in BDD tool
%%%%%%%%%%%%
set_problog_flag(bdd_time,X) :-
(\+ integer(X); X<0),
!,
format(user,'\% ERROR: value must be positive integer!~n',[]),
flush_output(user),
fail.
set_problog_flag(bdd_time,X) :-
retractall(bdd_time(_)),
assert(bdd_time(X)).
%%%%%%%%%%%%
% iterative deepening on minimal probabilities (delta, max, kbest):
% - first threshold (not in log-space as only used to retrieve argument for init_threshold/1, which is also used with user-supplied argument)
% - last threshold to ensure termination in case infinite search space (saved in log-space for easy comparison with current values during search)
% - factor used to decrease threshold for next level, NewMin=Factor*OldMin (saved in log-space)
%%%%%%%%%%%%
set_problog_flag(first_threshold,X) :-
(\+ number(X); X<0 ; X>1),
!,
format(user,'\% ERROR: value must be in [0,1]!~n',[]),
flush_output(user),
fail.
set_problog_flag(first_threshold,X) :-
retractall(first_threshold(_)),
assert(first_threshold(X)).
set_problog_flag(last_threshold,X) :-
(\+ number(X); X<0 ; X>1),
!,
format(user,'\% ERROR: value must be in [0,1]!~n',[]),
flush_output(user),
fail.
set_problog_flag(last_threshold,X) :-
retractall(last_threshold(_)),
L is log(X),
assert(last_threshold(L)).
set_problog_flag(id_stepsize,X) :-
(\+ number(X); X=<0 ; X>=1),
!,
format(user,'\% ERROR: value must be in ]0,1[!~n',[]),
flush_output(user),
fail.
set_problog_flag(id_stepsize,X) :-
retractall(id_stepsize(_)),
L is log(X),
assert(id_stepsize(L)).
%%%%%%%%%%%%
% prune check stops derivations if they use a superset of facts already known to form a proof
% (very) costly test, can be switched on/off here
%%%%%%%%%%%%
set_problog_flag(prunecheck,on) :-
!,
format(user,'WARNING: prune check not implemented, will fail~n',[]),
flush_output(user),
retractall(prunecheck(_)),
assert(prunecheck(on)).
set_problog_flag(prunecheck,off) :-
!,
retractall(prunecheck(_)),
assert(prunecheck(off)).
set_problog_flag(prunecheck,_) :-
format(user,'\% ERROR: value must be \'on\' or \'off\'!~n',[]),
flush_output(user),
fail.
%%%%%%%%%%%%
% max number of calls to probabilistic facts per derivation (to ensure termination)
%%%%%%%%%%%%
set_problog_flag(maxsteps,X) :-
(\+ integer(X); X<0),
!,
format(user,'\% ERROR: value must be positive integer!~n',[]),
flush_output(user),
fail.
set_problog_flag(maxsteps,X) :-
retractall(maxsteps(_)),
assert(maxsteps(X)).
%%%%%%%%%%%%
% montecarlo: recalculate current approximation after N samples
%%%%%%%%%%%%
set_problog_flag(mc_batchsize,X) :-
(\+ integer(X); X<0),
!,
format(user,'\% ERROR: value must be positive integer!~n',[]),
flush_output(user),
fail.
set_problog_flag(mc_batchsize,X) :-
retractall(mc_batchsize(_)),
assert(mc_batchsize(X)).
%%%%%%%%%%%%
% montecarlo: write log to this file
%%%%%%%%%%%%
set_problog_flag(mc_logfile,X) :-
\+ atom(X),
!,
format(user,'\% ERROR: value must be atom!~n',[]),
flush_output(user),
fail.
set_problog_flag(mc_logfile,X) :-
retractall(mc_logfile(_)),
assert(mc_logfile(X)).
%%%%%%%%%%%%
% files to write BDD script and pars
% bdd_file overwrites bdd_par_file with matching extended name
% if different name wanted, respect order when setting
%%%%%%%%%%%%
set_problog_flag(bdd_file,X) :-
\+ atom(X),
!,
format(user,'\% ERROR: value must be atom!~n',[]),
flush_output(user),
fail.
set_problog_flag(bdd_file,X) :-
retractall(bdd_file(_)),
atomic_concat(X,'_probs',Y),
set_problog_flag(bdd_par_file,Y),
atomic_concat(X,'_res',Z),
set_problog_flag(bdd_result,Z),
assert(bdd_file(X)).
set_problog_flag(bdd_par_file,X) :-
\+ atom(X),
!,
format(user,'\% ERROR: value must be atom!~n',[]),
flush_output(user),
fail.
set_problog_flag(bdd_par_file,X) :-
retractall(bdd_par_file(_)),
assert(bdd_par_file(X)).
set_problog_flag(bdd_result,X) :-
\+ atom(X),
!,
format(user,'\% ERROR: value must be atom!~n',[]),
flush_output(user),
fail.
set_problog_flag(bdd_result,X) :-
retractall(bdd_result(_)),
assert(bdd_result(X)).
%%%%%%%%%%%%
% working directory: all the temporary and output files will be located there
% it assumes a subdirectory of the current working dir
% on initialization, the current dir is the one where the user's file is located
%%%%%%%%%%%%
set_problog_flag(dir,X) :-
\+ atom(X),
!,
format(user,'\% ERROR: value must be atom!~n',[]),
flush_output(user),
fail.
set_problog_flag(dir,X) :-
retractall(work_dir(_)),
working_directory(PWD,PWD),
atomic_concat([PWD,'/',X,'/'],D),
atomic_concat(['mkdir ',D],Mkdir),
(file_exists(X) -> true; shell(Mkdir)),
assert(work_dir(D)).
%%%%%%%%%%%%
% save BDD information for the (last) lower bound BDD used during inference
% produces three files named save_script, save_params, save_map
% located in the directory given by problog_flag dir
%%%%%%%%%%%%
set_problog_flag(save_bdd,true) :-
!,
retractall(save_bdd(_)),
assert(save_bdd(true)).
set_problog_flag(save_bdd,false) :-
!,
retractall(save_bdd(_)),
assert(save_bdd(false)).
set_problog_flag(save_bdd,_) :-
format(user,'\% ERROR: value must be \'true\' or \'false\'!~n',[]),
flush_output(user),
fail.
%%%%%%%%%%%%
% determine whether ProbLog outputs information (number of proofs, intermediate results, ...)
% default is true, as otherwise problog_delta won't output intermediate bounds
%%%%%%%%%%%%
set_problog_flag(verbose,true) :-
!,
retractall(problog_verbose(_)),
assert(problog_verbose(true)).
set_problog_flag(verbose,false) :-
!,
retractall(problog_verbose(_)),
assert(problog_verbose(false)).
set_problog_flag(verbose,_) :-
format(user,'\% ERROR: value must be \'true\' or \'false\'!~n',[]),
flush_output(user),
fail.
set_problog_flag(fast_proofs,true) :-
retractall(fast_proofs(_)),
assert(fast_proofs(true)).
set_problog_flag(fast_proofs,false) :-
retractall(fast_proofs(_)),
assert(fast_proofs(false)).
set_problog_flag(fast_proofs,V) :-
format(user,'\% ERROR: value ~w should be \'true\' or \'false\'!~n',[V]),
flush_output(user),
fail.
%%%%%%%%%%%%%%%%%%%%%%%%
% show values
%%%%%%%%%%%%%%%%%%%%%%%%
problog_flags :-
format('~n',[]),
print_sep_line,
format('problog flags: use set_problog_flag(Flag,Option) to change, problog_flag(Flag,Option) to view~n',[]),
print_sep_line,
print_param(description,value,flag,option),
print_sep_line,
problog_flag(bdd_time,StopBDD),
print_param('BDD computation timeout in seconds',StopBDD,'bdd_time','positive integer'),
problog_flag(first_threshold,First),
print_param('starting threshold iterative deepening',First,'first_threshold','0 =< Option =< 1'),
problog_flag(last_threshold,Last),
print_param('stopping threshold iterative deepening',Last,'last_threshold','0 =< Option =< 1'),
problog_flag(id_stepsize,Decrease),
print_param('threshold shrinking factor iterative deepening',Decrease,'id_stepsize','0 < Option < 1'),
problog_flag(prunecheck,Check),
print_param('stop derivations including all facts of known proof',Check,'prunecheck','on/off'),
problog_flag(maxsteps,Steps),
print_param('max. number of prob. steps per derivation',Steps,'maxsteps','positive integer'),
problog_flag(mc_batchsize,MCBatch),
print_param('number of samples before update in montecarlo',MCBatch,'mc_batchsize','positive integer'),
problog_flag(mc_logfile,MCFile),
print_param('logfile for montecarlo',MCFile,'mc_logfile','atom'),
problog_flag(bdd_file,BDDFile),
print_param('file for BDD script',BDDFile,'bdd_file','atom'),
problog_flag(dir,WorkDir),
print_param('directory for files',WorkDir,'dir','atom'),
problog_flag(save_bdd,Save),
print_param('save BDD files for (last) lower bound',Save,'save_bdd','true/false'),
problog_flag(verbose,Verbose),
print_param('output intermediate information',Verbose,'verbose','true/false'),
print_sep_line,
format('~n',[]),
flush_output.