def _propose_graph(self, graph):
"""
we choose ONE core in the graph and return a valid grpah with a changed core
note that when we chose the core, we made sure that there would be possible replacements..
"""
# finding a legit candidate..
original_cip = self.select_original_cip(graph)
# see which substitution to make
candidate_cips = self._select_cips(original_cip)
for candidate_cip in candidate_cips:
# substitute and return
graph_new = core_substitution(graph, original_cip.graph, candidate_cip.graph)
if self.feasibility_checker.check(graph_new):
graph_clean(graph_new)
return self.postprocessor.postprocess(graph_new)
def _propose_graph(self, graph):
"""Override to store cip pairs to database if online_learning is true."""
original_cip = self.select_original_cip(graph)
candidate_cips = self._candidate_cips(original_cip)
for candidate_cip in candidate_cips:
if candidate_cip.core_hash == original_cip.core_hash:
continue
graph_new = core_substitution(graph, original_cip.graph, candidate_cip.graph)
if self.feasibility_checker.check(graph_new):
graph_clean(graph_new)
if self.online_learning:
self._score(graph)
self._score(graph_new)
self._new_pair(original_cip, candidate_cip, graph._score, graph_new._score)
return self.postprocessor.postprocess(graph_new)
else:
logger.debug('feasibility checker failed')