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Q4Solution.py
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Q4Solution.py
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# This script will try to return diseases based on phenotypic similarity
import os
import sys
import argparse
# PyCharm doesn't play well with relative imports + python console + terminal
try:
from code.reasoningtool import ReasoningUtilities as RU
except ImportError:
sys.path.append(os.path.dirname(os.path.dirname(os.path.abspath(__file__))))
import ReasoningUtilities as RU
import FormatOutput
class Q4:
def __init__(self):
None
def answer(self, disease_ID, use_json=False, threshold=0.2):
"""
Answer the question: what other diseases have similarity >= jaccard=0.2 with the given disease_ID
(in terms of phenotype overlap)
:param disease_ID: KG disease name (eg. DOID:8398)
:param use_json: use the standardized output format
:param threshold: only include diseases with Jaccard index above this
:return: None (print to stdout), unless there's an error, then return 1
"""
# Initialize the response class
response = FormatOutput.FormatResponse(4)
# Check if node exists
if not RU.node_exists_with_property(disease_ID, 'name'):
error_message = "Sorry, the disease %s is not yet in our knowledge graph." % disease_ID
error_code = "DiseaseNotFound"
if not use_json:
print(error_message)
return 1
else:
response.add_error_message(error_code, error_message)
response.print()
return 1
# Get label/kind of node the source is
disease_label = RU.get_node_property(disease_ID, "label")
if disease_label != "disease" and disease_label != "disease":
error_message = "Sorry, the input has label %s and needs to be one of: disease, disease." \
" Please try a different term" % disease_label
error_code = "NotADisease"
if not use_json:
print(error_message)
return 1
else:
response.add_error_message(error_code, error_message)
response.print()
return 1
# get the description
disease_description = RU.get_node_property(disease_ID, 'description')
# get the phenotypes associated to the disease
disease_phenotypes = RU.get_one_hop_target(disease_label, disease_ID, "phenotypic_feature",
"has_phenotype")
# Look more steps beyond if we didn't get any physically_interacts_with
if disease_phenotypes == []:
for max_path_len in range(2, 5):
disease_phenotypes = RU.get_node_names_of_type_connected_to_target(disease_label, disease_ID,
"phenotypic_feature",
max_path_len=max_path_len,
direction="u")
if disease_phenotypes:
break
# Make sure you actually picked up at least one phenotype
if not disease_phenotypes:
error_message = "No phenotypes found for this disease."
error_code = "NoPhenotypesFound"
if not use_json:
print(error_message)
return 1
else:
response.add_error_message(error_code, error_message)
response.print()
return 1
disease_phenotypes_set = set(disease_phenotypes)
# get all the other disease that connect and get the phenotypes in common
# direct connection
node_label_list = ["phenotypic_feature"]
relationship_label_list = ["has_phenotype", "has_phenotype"]
node_of_interest_position = 0
other_disease_IDs_to_intersection_counts = dict()
for target_label in ["disease", "disease"]:
names2counts, names2nodes = RU.count_nodes_of_type_on_path_of_type_to_label(disease_ID, disease_label,
target_label, node_label_list,
relationship_label_list,
node_of_interest_position)
for ID in names2counts.keys():
if names2counts[ID] / float(len(
disease_phenotypes_set)) >= threshold: # if it's below this threshold, no way the Jaccard index will be large enough
other_disease_IDs_to_intersection_counts[ID] = names2counts[ID]
# check if any other diseases passed the threshold
if not other_disease_IDs_to_intersection_counts:
error_code = "NoDiseasesFound"
error_message = "No diseases were found with similarity crossing the threshold of %f." % threshold
parent = RU.get_one_hop_target(disease_label, disease_ID, disease_label, "subclass_of", direction="r")
if parent:
parent = parent.pop()
error_message += "\n Note that %s is a parent disease to %s, so you might try that instead." % (
RU.get_node_property(parent, 'description'), disease_description)
if not use_json:
print(error_message)
return 1
else:
response.add_error_message(error_code, error_message)
response.print()
return 1
# Now for each of the diseases connecting to source, count number of phenotypes
node_label_list = ["phenotypic_feature"]
relationship_label_list = ["has_phenotype", "has_phenotype"]
node_of_interest_position = 0
other_doid_counts = RU.count_nodes_of_type_for_nodes_that_connect_to_label(disease_ID, disease_label,
"disease", node_label_list,
relationship_label_list,
node_of_interest_position)
other_omim_counts = RU.count_nodes_of_type_for_nodes_that_connect_to_label(disease_ID, disease_label,
"disease", node_label_list,
relationship_label_list,
node_of_interest_position)
# union the two
other_disease_counts = dict()
for key in other_doid_counts.keys():
other_disease_counts[key] = other_doid_counts[key]
for key in other_omim_counts.keys():
other_disease_counts[key] = other_omim_counts[key]
# then compute the jaccard index
disease_jaccard_tuples = []
for other_disease_ID in other_disease_counts.keys():
jaccard = 0
if other_disease_ID in other_disease_IDs_to_intersection_counts:
union_card = len(disease_phenotypes) + other_disease_counts[other_disease_ID] - \
other_disease_IDs_to_intersection_counts[other_disease_ID]
jaccard = other_disease_IDs_to_intersection_counts[other_disease_ID] / float(union_card)
if jaccard > threshold:
disease_jaccard_tuples.append((other_disease_ID, jaccard))
# Format the results.
# Maybe nothing passed the threshold
if not disease_jaccard_tuples:
error_code = "NoDiseasesFound"
error_message = "No diseases were found with similarity crossing the threshold of %f." % threshold
parent = RU.get_one_hop_target(disease_label, disease_ID, disease_label, "subclass_of", direction="r")
if parent:
parent = parent.pop()
error_message += "\n Note that %s is a parent disease to %s, so you might try that instead." % (
RU.get_node_property(parent, 'description'), disease_description)
if not use_json:
print(error_message)
return 1
else:
response.add_error_message(error_code, error_message)
return 1
# Otherwise there are results to return, first sort them largest to smallest
disease_jaccard_tuples_sorted = [(x, y) for x, y in
sorted(disease_jaccard_tuples, key=lambda pair: pair[1], reverse=True)]
if not use_json:
to_print = "The diseases with phenotypes similar to %s are: \n" % disease_description
for other_disease_ID, jaccard in disease_jaccard_tuples_sorted:
to_print += "%s\t%s\tJaccard %f\n" % (
other_disease_ID, RU.get_node_property(other_disease_ID, 'description'), jaccard)
print(to_print)
else:
for other_disease_ID, jaccard in disease_jaccard_tuples_sorted:
to_print = "%s is phenotypically similar to the disease %s with similarity value %f" % (
disease_description, RU.get_node_property(other_disease_ID, 'description'), jaccard)
g = RU.get_node_as_graph(other_disease_ID)
response.add_subgraph(g.nodes(data=True), g.edges(data=True), to_print, jaccard)
response.print()
def describe(self):
output = "Answers questions of the form: 'What diseases have phenotypes similar to X?' where X is a disease." + "\n"
# TODO: subsample disease nodes
return output
# Tests
def testQ4_answer():
Q = Q4()
def test_Q4_describe():
Q = Q4()
res = Q.describe()
def test_suite():
testQ4_answer()
test_Q4_describe()
def main():
parser = argparse.ArgumentParser(description="Answers questions of the type 'What diseases have phenotypes similar to X?'.",
formatter_class=argparse.ArgumentDefaultsHelpFormatter)
parser.add_argument('-d', '--disease', type=str, help="Disease DOID (or other name of node in the KG)", default="DOID:8398")
parser.add_argument('-j', '--json', action='store_true', help='Flag specifying that results should be printed in JSON format (to stdout)', default=False)
parser.add_argument('--describe', action='store_true', help='Print a description of the question to stdout and quit', default=False)
parser.add_argument('--threshold', type=float, help='Jaccard index threshold (only report other diseases above this)', default=0.2)
# Parse and check args
args = parser.parse_args()
disease_ID = args.disease
use_json = args.json
describe_flag = args.describe
threshold = args.threshold
# Initialize the question class
Q = Q4()
if describe_flag:
res = Q.describe()
print(res)
else:
res = Q.answer(disease_ID, use_json=use_json, threshold=threshold)
if __name__ == "__main__":
main()
def other_connection_types():
# Besides direct disease->phenotype connections, here is a list of other possible connections
# one is parent of
print("one")
node_label_list = [disease_label, "phenotypic_feature"]
relationship_label_list = ["subclass_of", "has_phenotype", "has_phenotype"]
node_of_interest_position = 1
print(RU.count_nodes_of_type_on_path_of_type_to_label(disease_ID, disease_label,
target_label, node_label_list,
relationship_label_list,
node_of_interest_position, debug=True))
names2counts, names2nodes = RU.count_nodes_of_type_on_path_of_type_to_label(disease_ID, disease_label,
target_label, node_label_list,
relationship_label_list,
node_of_interest_position)
for ID in names2counts.keys():
if names2counts[ID] / float(len(
disease_phenotypes_set)) >= threshold: # if it's below this threshold, no way the Jaccard index will be large enough
other_disease_IDs_to_intersection_counts[ID] = names2counts[ID]
# other is parent of
print("other")
node_label_list = ["phenotypic_feature", target_label]
relationship_label_list = ["has_phenotype", "has_phenotype", "subclass_of"]
node_of_interest_position = 0
names2counts, names2nodes = RU.count_nodes_of_type_on_path_of_type_to_label(disease_ID,
disease_label,
target_label,
node_label_list,
relationship_label_list,
node_of_interest_position)
for ID in names2counts.keys():
if names2counts[ID] / float(len(
disease_phenotypes_set)) >= threshold: # if it's below this threshold, no way the Jaccard index will be large enough
other_disease_IDs_to_intersection_counts[ID] = names2counts[ID]
# Both is parent of
print("both")
node_label_list = [disease_label, "phenotypic_feature", target_label]
relationship_label_list = ["subclass_of", "has_phenotype", "has_phenotype", "subclass_of"]
node_of_interest_position = 1
names2counts, names2nodes = RU.count_nodes_of_type_on_path_of_type_to_label(disease_ID,
disease_label,
target_label,
node_label_list,
relationship_label_list,
node_of_interest_position)
for ID in names2counts.keys():
if names2counts[ID] / float(len(
disease_phenotypes_set)) >= threshold: # if it's below this threshold, no way the Jaccard index will be large enough
other_disease_IDs_to_intersection_counts[ID] = names2counts[ID]
def old_answer(disease_ID, use_json=False, threshold=0.2):
# This is about 5 times slower than the current answer, but is a bit clearer in how it's coded
# Initialize the response class
response = FormatOutput.FormatResponse(4)
# Check if node exists
if not RU.node_exists_with_property(disease_ID, 'name'):
error_message = "Sorry, the disease %s is not yet in our knowledge graph." % disease_ID
error_code = "DiseaseNotFound"
if not use_json:
print(error_message)
return 1
else:
response.add_error_message(error_code, error_message)
response.print()
return 1
# Get label/kind of node the source is
disease_label = RU.get_node_property(disease_ID, "label")
if disease_label != "disease" and disease_label != "disease":
error_message = "Sorry, the input has label %s and needs to be one of: disease, disease." \
" Please try a different term" % disease_label
error_code = "NotADisease"
if not use_json:
print(error_message)
return 1
else:
response.add_error_message(error_code, error_message)
response.print()
return 1
# get the description
disease_description = RU.get_node_property(disease_ID, 'description')
# get the phenotypes associated to the disease
disease_phenotypes = RU.get_one_hop_target(disease_label, disease_ID, "phenotypic_feature", "has_phenotype")
# Look more steps beyond if we didn't get any physically_interacts_with
if disease_phenotypes == []:
for max_path_len in range(2, 5):
disease_phenotypes = RU.get_node_names_of_type_connected_to_target(disease_label, disease_ID,
"phenotypic_feature",
max_path_len=max_path_len, direction="u")
if disease_phenotypes:
break
# print("Total of %d phenotypes" % len(disease_phenotypes))
# Make sure you actually picked up at least one phenotype
if not disease_phenotypes:
error_message = "No phenotypes found for this disease."
error_code = "NoPhenotypesFound"
if not use_json:
print(error_message)
return 1
else:
response.add_error_message(error_code, error_message)
response.print()
return 1
disease_phenotypes_set = set(disease_phenotypes)
# get all the other disease that connect and get the phenotypes in common
other_disease_IDs_to_intersection_counts = dict()
for target_label in ["disease", "disease"]:
# direct connection
# print("direct")
node_label_list = ["phenotypic_feature"]
relationship_label_list = ["has_phenotype", "has_phenotype"]
node_of_interest_position = 0
names2counts, names2nodes = RU.count_nodes_of_type_on_path_of_type_to_label(disease_ID, disease_label,
target_label, node_label_list,
relationship_label_list,
node_of_interest_position)
for ID in names2counts.keys():
if names2counts[ID] / float(len(
disease_phenotypes_set)) >= threshold: # if it's below this threshold, no way the Jaccard index will be large enough
other_disease_IDs_to_intersection_counts[ID] = names2counts[ID]
if not other_disease_IDs_to_intersection_counts:
error_code = "NoDiseasesFound"
error_message = "No diseases were found with similarity crossing the threshold of %f." % threshold
parent = RU.get_one_hop_target(disease_label, disease_ID, disease_label, "subclass_of").pop()
if parent:
error_message += "\n Note that %s is a parent disease to %s, so you might try that instead." % (
RU.get_node_property(parent, 'description'), disease_description)
if not use_json:
print(error_message)
return 1
else:
response.add_error_message(error_code, error_message)
response.print()
return 1
# print("Total number of other diseases %d" % len(list(other_disease_IDs_to_intersection_counts.keys())))
# Now for each of the diseases in here, compute the actual Jaccard index
disease_jaccard_tuples = []
# i = 0
for other_disease_ID in other_disease_IDs_to_intersection_counts.keys():
# print(i)
# i += 1
# print(other_disease_ID)
# get the phenotypes associated to the disease
if other_disease_ID.split(":")[0] == "DOID":
other_disease_label = "disease"
if other_disease_ID.split(":")[0] == "OMIM":
other_disease_label = "disease"
other_disease_phenotypes = RU.get_one_hop_target(other_disease_label, other_disease_ID, "phenotypic_feature",
"has_phenotype")
# Look more steps beyond if we didn't get any physically_interacts_with
if other_disease_phenotypes == []:
for max_path_len in range(2, 5):
other_disease_phenotypes = RU.get_node_names_of_type_connected_to_target(other_disease_label,
other_disease_ID,
"phenotypic_feature",
max_path_len=max_path_len,
direction="u")
if other_disease_phenotypes:
break
# compute the Jaccard index
if not other_disease_phenotypes:
jaccard = 0
else:
other_disease_phenotypes_set = set(other_disease_phenotypes)
jaccard = other_disease_IDs_to_intersection_counts[other_disease_ID] / float(
len(list(disease_phenotypes_set.union(other_disease_phenotypes_set))))
# print("jaccard %f" % jaccard)
if jaccard > threshold:
disease_jaccard_tuples.append((other_disease_ID, jaccard))
# Format the results.
# Maybe nothing passed the threshold
if not disease_jaccard_tuples:
error_code = "NoDiseasesFound"
error_message = "No diseases were found with similarity crossing the threshold of %f." % threshold
parent = RU.get_one_hop_target(disease_label, disease_ID, disease_label, "subclass_of")
if parent:
error_message += "\n Note that %s is a parent disease to %s, so you might try that instead." % (
RU.get_node_property(parent, 'description'), disease_description)
if not use_json:
print(error_message)
return 1
else:
response.add_error_message(error_code, error_message)
return 1
# Otherwise there are results to return, first sort them largest to smallest
disease_jaccard_tuples_sorted = [(x, y) for x, y in
sorted(disease_jaccard_tuples, key=lambda pair: pair[1], reverse=True)]
if not use_json:
to_print = "The diseases similar to %s are: \n" % disease_description
for other_disease_ID, jaccard in disease_jaccard_tuples_sorted:
to_print += "%s\t%s\tJaccard %f\n" % (
other_disease_ID, RU.get_node_property(other_disease_ID, 'description'), jaccard)
print(to_print)
else:
for other_disease_ID, jaccard in disease_jaccard_tuples_sorted:
to_print = "%s is similar to the disease %s with similarity value %f" % (
disease_description, RU.get_node_property(other_disease_ID, 'decription'), jaccard)
g = RU.get_node_as_graph(other_disease_ID)
response.add_subgraph(g.nodes(data=True), g.edges(data=True), to_print, jaccard)
response.print()