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#!/usr/bin/env python3
# coding=utf-8
from data.parser.to_mrp.abstract_parser import AbstractParser
class NodeCentricParser(AbstractParser):
def parse(self, prediction):
output = {}
output["id"] = self.dataset.id_field.vocab.itos[prediction["id"].item()]
output["nodes"] = self.create_nodes(prediction)
output["nodes"] = self.create_anchors(prediction, output["nodes"], join_contiguous=True, at_least_one=True)
output["edges"] = self.create_edges(prediction, output["nodes"])
return output
def create_edge(self, source, target, prediction, edges, nodes):
edge = {"source": source, "target": target, "label": None}
edges.append(edge)
def create_edges(self, prediction, nodes):
N = len(nodes)
edge_prediction = prediction["edge presence"][:N, :N]
targets = [i for i, node in enumerate(nodes) if node["label"] in ["Source", "Target"]]
sources = [i for i, node in enumerate(nodes) if node["label"] not in ["Source", "Target"]]
edges = []
for target in targets:
for source in sources:
if edge_prediction[source, target] >= 0.5:
self.create_edge(source, target, prediction, edges, nodes)
return edges
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