Hazardius/pySimpleSpatialFactsBase

pySimpleSpatialFactsBase

System that can store expert (certain) spacial facts.

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The system should allow for easy input of spacial facts.

We can assume that this knowledge is in certain format.

The system should answer simple spacial questions using RCC5.

Questions are formed in natural language.

Requirements

• psi-toolkit
• NetworkX

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Input data format

Certain knowledge given to the system must be formatted in a certain way.

For each RCC5 fact it must be transformated into a triple:

(Subject, Relation, Object)

where Subject and Object are Strings, and Relation is taken from set {"EQ", "DR", "PO", "PP", "PPI"}

That triple should be then formatted into line of text separated by "@|@" signs, f.e.

Subject@|@EQ@|@Object

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Output

For now system works for polish questions "Czy X [rel] Y?" formed in natural language. Relation finding and parsing is terrible for now. It's in main part just checking if phrase is in set. To improve it in easy way - just edit relation_phrases.py.

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Usage

1. To feed system with certain facts.

   You can add facts from hand after running program with command:

    python __init__.py -f
   

   But of course better way is to write all facts down in a file (for example - check test_data.txt).

   And use command:

    cat test_data.txt | python __init__.py -f
   

   Remember! Even executing main file another time - you write to the same database.

   If You want to start a new one - use --purge argument as given below:

    cat test_data.txt | python __init__.py -f --purge
   

2. To ask a question.

   You can ask from hand after running program with command:

    python __init__.py -a
   

   But of course better way is to write all questions down in a file (for example - check test_questions.txt).

   And use command:

    cat test_questions.txt | python __init__.py -a