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amr_reification_9.py

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    • amr_reification_9.py 2.91 KiB
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    #!/usr/bin/python3.10
# -*- coding: Utf-8 -*-

#==============================================================================
# TENET: Rule to add AMR leaf for reclassified concept
#------------------------------------------------------------------------------
# Add AMR leaf corresponding to the relation between concept and variable.
#==============================================================================

from rdflib import Graph

import transduction
from transduction import net
from transduction.query_builder import generate_select_query
from transduction.rdfterm_computer import ( produce_uriref, produce_literal )


#==============================================================================
# Pattern Search: concept{variable, concept}
#==============================================================================

def __search_pattern(graph):
    select_data_list = ['?concept', '?cLabel', '?variable', '?vLabel']
    clause_list = [f'?concept rdfs:subClassOf* amr:AMR_Concept .',
                   f'?concept amr:label ?cLabel .',
                   f'?concept amr:fromAmrLk ?linkedC .',
                   f'?variable a amr:AMR_Variable .',
                   f'?variable amr:label ?vLabel .',
                   f'?variable amr:fromAmrLk ?v .',
                   f'?v a ?linkedC .']
    query_code = generate_select_query(graph, select_data_list, clause_list)
    result_set = graph.query(query_code) 
    return query_code, result_set


#==============================================================================
# Construct Method(s)
#==============================================================================

def __add_amr_leaf(graph, concept, cLabel, variable, vLabel):
    triple_list = []
    
    # -- New leaf
    new_leaf_uri = produce_uriref(graph, f'amr:leaf_{cLabel}_{vLabel}')
    relation = produce_uriref(graph, 'rdf:type')
    value = produce_uriref(graph, 'amr:AMR_Leaf')
    triple_list.append((new_leaf_uri, relation, value))
    
    # -- Relation: hasVariable
    relation = produce_uriref(graph, 'amr:hasVariable')
    triple_list.append((new_leaf_uri, relation, variable))
    
    # -- Relation: hasConcept
    relation = produce_uriref(graph, 'amr:hasConcept')
    triple_list.append((new_leaf_uri, relation, concept))
    
    return triple_list


#==============================================================================
# Main Method
#==============================================================================

def add_amr_leaf_for_reclassified_concept(graph):
    
    # -- Rule Initialization
    rule_label = 'add AMR leaf for reclassified concept'
    
    # -- Search for patterns
    _, pattern_set = __search_pattern(graph)
    
    # -- Selection Analyzing (1)
    rule_triple_list = []
    for pattern in pattern_set:
        rule_triple_list += __add_amr_leaf(
            graph, pattern.concept, pattern.cLabel, pattern.variable, pattern.vLabel)
    
    return rule_label, rule_triple_list