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Sigma knowledge engineering system is an system for developing, viewing and debugging theories in first
order logic. It works with Knowledge Interchange Format (KIF) and is optimized for the Suggested Upper Merged
Ontology (SUMO) www.ontologyportal.org.
The newest version!
package com.articulate.sigma.semRewrite;
/*
Copyright 2014-2015 IPsoft
Author: Peigen You [email protected]
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 2 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program ; if not, write to the Free Software
Foundation, Inc., 59 Temple Place, Suite 330, Boston,
MA 02111-1307 USA
*/
import com.articulate.sigma.KBmanager;
import com.google.common.base.Strings;
import java.io.File;
import java.util.*;
import static com.articulate.sigma.semRewrite.Interpreter.canon;
/************************************************************
* A class for intergration of RewriteRule check tools
*
*
* To use:
*
* run in bash and follow the instruction
*/
public final class RewriteRuleUtil extends RuleSet {
/************************************************************
* prevent instantiation
*/
private RewriteRuleUtil() {
}
/************************************************************
* update a Ruleset's indexed rule's CNF
*/
private static void updateCNF(int index, CNF f, RuleSet rs) {
Rule r = rs.rules.get(index);
r.cnf = f;
System.out.println(r);
Rule newr = Rule.parse(new Lexer(r.toString()));
System.out.println(newr);
rs.rules.set(index, newr);
}
/************************************************************
*/
private static void updateCNFTest(RuleSet rs) {
rs = new RuleSet().parse(new Lexer("prep_about(?X,?Y) ==> {refers(?X,?Y)}.\n" + "prep_about(?H,?Y) ==> {refers(?H,?Y)}.\n"));
rs = Clausifier.clausify(rs);
System.out.println(rs);
for (int i = 0; i < rs.rules.size(); ++i) {
Rule r = rs.rules.get(i);
CNF unifier = r.cnf;
for (int j = i + 1; j < rs.rules.size(); ++j) {
CNF unified = rs.rules.get(j).cnf;
System.out.println("unified = " + unified + " " + unifier);
HashMap map = unifier.unify(unified);
if (map == null || map.size() < 1) {
continue;
}
System.out.printf("Unification found between index %d and %d map = %s \n", i, j, map);
System.out.println("Before unification---------" + unified + " " + unifier + "\n------------");
unified = unified.applyBindings(map);
System.out.println("After unification---------" + unified + " " + unifier + "\n-----------");
}
}
}
/************************************************************
* load RuleSet from "SemRewrite.txt"
*/
public static RuleSet loadRuleSet() {
RuleSet rs;
KBmanager kb = KBmanager.getMgr();
kb.initializeOnce();
String f = KBmanager.getMgr().getPref("kbDir") + File.separator + "WordNetMappings" + File.separator + "SemRewrite.txt";
String pref = KBmanager.getMgr().getPref("SemRewrite");
if (!Strings.isNullOrEmpty(pref))
f = pref;
if (f.indexOf(File.separator.toString(), 2) < 0)
f = "/home/apease/SourceForge/KBs/WordNetMappings" + f;
try {
RuleSet rsin = RuleSet.readFile(f);
rs = canon(rsin);
}
catch (Exception e) {
e.printStackTrace();
System.out.println(e.getMessage());
return null;
}
rs = Clausifier.clausify(rs);
return rs;
}
/************************************************************
*/
public static void main(String[] args) {
ArrayList getSubsumed = new ArrayList();
ArrayList subsumer = new ArrayList();
RuleSet rs = loadRuleSet();
String input = "";
System.out.println("SemRewrite.txt loaded. There are " + rs.rules.size() + " rules.");
// SemRewriteRuleCheck.checkRuleSet(rs);
Scanner scanner = new Scanner(System.in);
do {
System.out.println("Semantic Rewriting Rule Uitl");
System.out.println(" options:");
System.out.println(" rewriterule check rule subsumption");
System.out.println(" !filepath get the sentences in file and find a common CNF, the file should be one sentence one line");
System.out.println(" 'reload' reload the SemrewriteRule.txt and check the whole RuleSet");
System.out.println(" @@inputfilepath,outputfilepath load the sentences from inputfile, do whole interpreter thing on sentences and generate output json file");
System.out.println(" 'exit'/'quit' quit this program");
try {
System.out.print("\nEnter :");
input = scanner.nextLine().trim();
if (!Strings.isNullOrEmpty(input) && !input.equals("exit") && !input.equals("quit")) {
if (input.equals("reload")) {
rs = loadRuleSet();
SemRewriteRuleCheck.checkRuleSet(rs);
continue;
}
if (input.startsWith("!")) {
String path = input.substring(1);
CNF cnf = CommonCNFUtil.loadFileAndFindCommonCNF(path);
continue;
}
if (input.startsWith("@@")) {
String path = input.substring(2);
String[] paths = path.split(",");
QAOutputGenerator.generate(paths[0], paths[1], null);
continue;
}
Rule r = Rule.parseString(input);
System.out.println("The rule entered is :: " + r + "\n");
SemRewriteRuleCheck.isRuleSubsumedByRuleSet(r, rs, getSubsumed, subsumer);
System.out.println("Following " + getSubsumed.size() + " rules would subsume the rule entered: \n");
for (int k : getSubsumed) {
System.out.println("Line Number:" + rs.rules.get(k).startLine + " : " + rs.rules.get(k));
}
System.out.println("---------------------------------------------------------------");
System.out.println("Following " + subsumer.size() + " rules would be subsumed by the rule entered: \n");
for (int k : subsumer) {
System.out.println("Line Number:" + rs.rules.get(k).startLine + " : " + rs.rules.get(k));
}
System.out.println("\n");
}
}
catch (Throwable e) {
continue;
}
} while (!input.equals("exit") && !input.equals("quit"));
}
}