def setUp(self):
self.pr_model = gl.pagerank.create(gl.SGraph())
self.cc_model = gl.connected_components.create(gl.SGraph())
self.__remove_file('./tmp_model-%d' % temp_number)
self.__remove_file('/tmp/tmp_model-%d' % temp_number)
self.__remove_file('/tmp/tmp_model2-%d' % temp_number)
def pagerank_triple_apply(input_graph, reset_prob=0.15, threshold=1e-3,
max_iterations=20):
g = gl.SGraph(input_graph.vertices, input_graph.edges)
# compute normalized edge weight
g.vertices['total_weight'] = 0.0
g = g.triple_apply(sum_weight, ['total_weight'])
g = g.triple_apply(normalize_weight, ['weight'])
del g.vertices['total_weight']
# initialize vertex field
g.vertices['prev_pagerank'] = 1.0
it = 0
total_l1_delta = len(g.vertices)
start = time.time()
while(total_l1_delta > threshold and it < max_iterations):
g.vertices['pagerank'] = 0.0
g = g.triple_apply(pagerank_update_fn, ['pagerank'])
g.vertices['pagerank'] = g.vertices['pagerank'] * (1 - reset_prob) \
+ reset_prob
g.vertices['l1_delta'] = (g.vertices['pagerank'] - \
g.vertices['prev_pagerank']).apply(lambda x: abs(x))
total_l1_delta = g.vertices['l1_delta'].sum()
g.vertices['prev_pagerank'] = g.vertices['pagerank']
print 'Iteration %d: total pagerank changed in L1 = %f' % (it,\
total_l1_delta)
it = it + 1
print 'Triple apply pagerank finished in: %f secs' % (time.time() - start)
del g.vertices['prev_pagerank']
return g
def select_subgraph(movie1='Point Break', movie2='Shrek'):
selection = [movie1, movie2]
subgraph = graphlab.SGraph()
g = construct_graph()
extracted = g.get_edges(dst_ids = selection)
subgraph = subgraph.add_edges(extracted, src_field='__src_id', dst_field='__dst_id')
return subgraph
def make_graph(target_id, followers, apis, update=False):
#cache_path = '../cache/_graphs/'
#file_name = str(target_id) + '.graph'
#if os.path.isfile(cache_path + file_name) and not update:
# return gl.load_graph(cache_path + file_name)
g - graphlab.SGraph()
verts = [make_verts(target_id)]
edges = make_edges(followers, target_id)
verts.append(make_verts(id))
#if fol_followers: edges.extend(make_edges(fol_followers, id))
#if fol_following: edges.extend(make_edges(id, fol_following))
#g = gl.SGraph().add_vertices(verts).add_edges(edges)
#g.save(cache_path + file_name)
return g
def triple_apply_knn(features):
def graph_JSD(src,edge,dst):
P = src['X1']
Q = dst['X1']
_P = P / norm(P, ord=1)
_Q = Q / norm(Q, ord=1)
_M = 0.5 * (_P + _Q)
edge['distance'] = 0.5 * (entropy(_P, _M) + entropy(_Q, _M))
return (src, edge, dst)
n = len(features)
sf = gl.SFrame(features)
sf = sf.add_row_number('row_id')
sg = gl.SGraph().add_vertices(sf, vid_field='row_id')
edges = [gl.Edge(u, v, attr={'distance': None}) for (u, v) in itertools.combinations(range(n), 2)]
sg = sg.add_edges(edges)
sg_dist = sg.triple_apply(graph_JSD, mutated_fields=['distance'])
#knn = sg_dist.edges.groupby("__src_id", {"knn" : gl.aggregate.CONCAT("__dst_id","distance")}).sort("__src_id")
#top_neighbors = knn.apply(lambda row: sorted(row['knn'],key=row['knn'].get)[:N])
top_neighbors = []
for idx in xrange(n):
topN_sf = sg_dist.get_edges(src_ids=[idx,None],dst_ids=[None,idx]).topk('distance',k=N,reverse=True)
topN = topN_sf.apply(lambda row: row['__src_id'] if row['__dst_id']==idx else row['__dst_id'])
top_neighbors.append(topN)
return gl.SArray(top_neighbors)
def _wrap_function_return(val):
"""
Recursively walks each thing in val, opening lists and dictionaries,
converting all occurances of UnityGraphProxy to an SGraph,
UnitySFrameProxy to SFrame, and UnitySArrayProxy to SArray.
"""
if type(val) == _UnityGraphProxy:
return _gl.SGraph(_proxy=val)
elif type(val) == _UnitySFrameProxy:
return _gl.SFrame(_proxy=val)
elif type(val) == _UnitySArrayProxy:
return _gl.SArray(_proxy=val)
elif type(val) == _UnityModel:
# we need to cast it up to the appropriate type
try:
if '__uid__' in val.list_fields():
uid = val.get('__uid__')
if uid in class_uid_to_class:
return class_uid_to_class[uid](_proxy=val)
except:
pass
return val
elif type(val) == list:
return [_wrap_function_return(i) for i in val]
elif type(val) == dict:
return {i: _wrap_function_return(val[i]) for i in val}
else:
return val
def get_sgraph_from_neo4j_json(json_filename):
'''
Reads a JSON file, created by Neo4j, into an SGraph.
Args:
json_filename: The name of the JSON file created by Neo4j.
Returns:
SGraph
'''
# Load json_filename into an SFrame
sf = gl.SFrame.read_csv(json_filename,
header=False,
column_type_hints=dict,
verbose=False)
# Extract the graph data from sf
sf = sf.unpack('X1', column_name_prefix='')
sf = sf[['data']].stack('data', new_column_name='data')
# Extract nodes and edges
nodes_sf = extract_entities(sf, 'nodes')
edges_sf = extract_entities(sf, 'relationships')
# Create the SGraph
sgraph = gl.SGraph()
sgraph = sgraph.add_edges(edges_sf,
src_field='startNode',
dst_field='endNode')
sgraph = sgraph.add_vertices(nodes_sf, vid_field='id')
return sgraph
def load_graph_task(task):
graph_data = gl.SFrame.read_csv(task.params['csv'],
header=False,
delimiter=' ',
column_type_hints=long)
task.outputs['graph'] = gl.SGraph().add_edges(graph_data,
src_field='X1',
dst_field='X2')
def test_shortest_path(self):
if "sssp" in get_unity().list_toolkit_functions():
m = gl.shortest_path.create(self.graph, source_vid=0)
print m
m.summary()
self.__test_model_save_load_helper__(m)
m2 = gl.shortest_path.create(self.graph, source_vid=0)
print m2
self.__test_model_save_load_helper__(m2)
# Test get_path function on a simple chain graph and star graph
chain_graph = gl.SGraph().add_edges(
[gl.Edge(i, i + 1) for i in range(10)])
m3 = gl.shortest_path.create(chain_graph, source_vid=0)
for i in range(10):
self.assertSequenceEqual(m3.get_path(i),
[(j, float(j)) for j in range(i + 1)])
star_graph = gl.SGraph().add_edges(
[gl.Edge(0, i + 1) for i in range(10)])
m4 = gl.shortest_path.create(star_graph, source_vid=0)
for i in range(1, 11):
self.assertSequenceEqual(m4.get_path(i), [(0, 0.0), (i, 1.0)])
# Test sssp ignoring the existing distance field
star_graph.vertices['distance'] = 0
m5 = gl.shortest_path.create(star_graph, source_vid=0)
for i in range(1, 11):
self.assertSequenceEqual(m5.get_path(i), [(0, 0.0), (i, 1.0)])
default_options = gl.shortest_path.get_default_options()
print default_options
self.assertTrue(len(default_options.keys()) == 2)
self.assertTrue(default_options['weight_field'] == "")
self.assertTrue(default_options['max_distance'] == 1e30)
m6 = gl.shortest_path.create(chain_graph,
source_vid=0,
max_distance=3)
current_options = m6.get_current_options()
print current_options
self.assertTrue(len(current_options.keys()) == 2)
self.assertTrue(current_options['weight_field'] == "")
self.assertTrue(current_options['max_distance'] == 3)
def loadData(): edgesData = gl.load_sframe(sframeDataFolder) print 'num_rows:%d ' %edgesData.num_rows() #create graph G = gl.SGraph() G = G.add_edges(edges = edgesData, src_field ='src',dst_field = 'dst') pritn 'create graph done!' return G
def __init__(self, vertices=None, edges=None, child=None):
self.parent = None
self.child = child
if vertices and edges:
self.g = gl.SGraph(vertices=vertices,
edges=edges,
vid_field='__id',
src_field='__src_id',
dst_field='__dst_id')
def networkx_to_graphlab(g):
p = gl.SGraph()
# Add nodes
p = p.add_vertices(map(lambda x: gl.Vertex(x[0], attr=x[1]), g.nodes(data=True)))
# Add edges
p = p.add_edges(map(lambda x: gl.Edge(x[0], x[1], attr=x[2]), g.edges(data=True)))
if not g.is_directed():
p = p.add_edges(map(lambda x: gl.Edge(x[1], x[0], attr=x[2]), g.edges(data=True)))
return p
def load_data(dpath, maxn=None):
cites = gl.SFrame.read_csv(dpath+'cites.csv', column_type_hints = [int, int])
paper = gl.SFrame.read_csv(dpath+'papers.csv', column_type_hints = [int, int])
bad = cites.apply(lambda x:x['p1'] == x['p2'])
print '%d self-citation detected, delete' % bad.sum()
cites = cites[bad == 0]
if maxn is not None:
paper = paper[paper['id'] < maxn]
cites = cites[cites.apply(lambda x: x['p1'] < maxn and x['p2'] < maxn)]
sg = gl.SGraph(vertices = paper, edges = cites, vid_field = 'id', src_field = 'p1', dst_field = 'p2')
return sg
def create_test_objects():
vertices = pandas.DataFrame({'vid': ['1', '2', '3'],
'color': ['g', 'r', 'b'],
'vec': [[.1, .1, .1], [.1, .1, .1], [.1, .1, .1]]})
edges = pandas.DataFrame({'src_id': ['1', '2', '3'],
'dst_id': ['2', '3', '4'],
'weight': [0., 0.1, 1.]})
graph = graphlab.SGraph().add_vertices(vertices, 'vid').add_edges(edges, 'src_id', 'dst_id')
sframe = graphlab.SFrame(edges)
model = graphlab.pagerank.create(graph)
return (graph, sframe, model)
def loadSubData():
sframeFiles = os.listdir('/home/lt/sframe')
edgesData = gl.sFrame()
for sf in sframeFiles:
edgesData.append(gl.load_sframe('/home/lt/sframe',sf))
edgesData.rename({'X1':'src','X2':'dst'})
#create graph
G = gl.SGraph()
G = G.add_edges(edges = edgesData, src_field ='src',dst_field = 'dst')
pritn 'create graph done!'
return G
def load_data(dpath, maxn=None):
cites = gl.SFrame.read_csv(dpath + 'cites.csv',
column_type_hints=[int, int])
paper = gl.SFrame.read_csv(dpath + 'papers.csv',
column_type_hints=[int, int])
if maxn is not None:
paper = paper[paper['id'] < maxn]
cites = cites[cites.apply(lambda x: x['p1'] < maxn and x['p2'] < maxn)]
sg = gl.SGraph(vertices=paper,
edges=cites,
vid_field='id',
src_field='p1',
dst_field='p2')
return sg
def test_compute_shortest_path(self):
edge_src_ids = ['src1', 'src2', 'a', 'b', 'c']
edge_dst_ids = ['a', 'b', 'dst', 'c', 'dst']
edges = gl.SFrame({'__src_id': edge_src_ids, '__dst_id': edge_dst_ids})
g = gl.SGraph().add_edges(edges)
res = list(
gl.shortest_path._compute_shortest_path(g, ["src1", "src2"],
"dst"))
self.assertEquals(res, [["src1", "a", "dst"]])
res = list(gl.shortest_path._compute_shortest_path(g, "src2", "dst"))
self.assertEquals(res, [["src2", "b", "c", "dst"]])
edge_src_ids = [0, 1, 2, 3, 4]
edge_dst_ids = [2, 3, 5, 4, 5]
edge_weights = [1, 0.1, 1, 0.1, 0.1]
g = gl.SFrame({
'__src_id': edge_src_ids,
'__dst_id': edge_dst_ids,
'weights': edge_weights
})
g = gl.SGraph(edges=g)
t = gl.shortest_path._compute_shortest_path(g, [0, 1], [5], "weights")
self.assertEquals(t, [1, 3, 4, 5])
def build_sptgraph(sg, create_self_edges, baseid_name, layer_name):
# It is used to generate node ids in the causal multilayer graph
# IMPORTANT baseID starts at 1 and not 0
max_id = sg.vertices['__id'].max()
def expand_edge_layers(x):
"""Closure, capture max_id to generate all edges for the graph"""
base_src = x['__src_id']
base_tgt = x['__dst_id']
bitfield = int(x['sp_edges'])
return expand_causal_edges_from_bitfield(bitfield, base_src, base_tgt, max_id)
def expand_vertex_layers(x):
"""Closure, capture max_id to generate all edges for the graph"""
base_src = x['__id']
base_tgt = x['__id']
bitfield = shift_and_bitstrings(x['layers'], x['layers'])
return expand_causal_edges_from_bitfield(bitfield, base_src, base_tgt, max_id)
def generate_sp_edge_sframe(x):
return make_list(x['sp_edges'])
# Create empty field which will hold the bitstring for the edge creation
sg.edges['sp_edges'] = ''
# Create edge bitstring
sg = sg.triple_apply(create_causal_edges_bitstring, mutated_fields=['sp_edges'])
# Expand to actual source and destination as a string
sg.edges['sp_edges'] = sg.edges.apply(expand_edge_layers, dtype=str)
# Create new sframe with actual ids
sp_edges = sg.edges.flat_map(['source', 'dest'], generate_sp_edge_sframe, column_types=[int, int])
# Create the graph from edges
h = gl.SGraph().add_edges(sp_edges, src_field='source', dst_field='dest')
del sg.edges['sp_edges']
if create_self_edges:
sg.vertices['sp_edges'] = ''
# Expand to actual source and destination as a string
sg.vertices['sp_edges'] = sg.vertices.apply(expand_vertex_layers, dtype=str)
# Create new sframe with actual ids
sp_edges = sg.vertices.flat_map(['source', 'dest'], generate_sp_edge_sframe, column_types=[int, int])
h = h.add_edges(sp_edges, src_field='source', dst_field='dest')
del sg.vertices['sp_edges']
# Add baseid and layer to spt graph
h.vertices[layer_name] = h.vertices.apply(lambda x: (x['__id'] - 1) // max_id, dtype=int)
# base_src = src - (l * max_id)
h.vertices[baseid_name] = h.vertices.apply(lambda x: x['__id'] - (x[layer_name] * max_id), dtype=int)
return h
def create_spatio_temporal_graph(g,
data,
create_self_edges=True,
baseid_name='baseID',
layer_name='layer',
verbose=True,
force_python=False,
excluded_ids=None):
start = time.time()
if verbose:
LOGGER.info('Start spatio-temporal graph creation')
signal = gl.SFrame(data)
if HAS_FAST_MODULE and not force_python:
node_signal = create_node_signal_fast(signal,
baseid_name,
layer_name,
verbose=verbose)
else:
node_signal = create_node_signal(signal,
baseid_name,
layer_name,
verbose=verbose)
sg = merge_signal_on_graph(g,
node_signal,
baseid_name,
layer_name,
excluded_ids=excluded_ids,
verbose=verbose)
# Create graph
if HAS_FAST_MODULE and not force_python:
h = fast.build_sptgraph(sg,
baseid_name,
layer_name,
create_self_edges,
verbose=False)
else:
h = sptgraph_impl.build_sptgraph(sg, create_self_edges, baseid_name,
layer_name)
k = gl.SGraph(h.vertices.join(signal, ['page_id', 'layer']), h.edges)
if verbose:
LOGGER.info('Spatio-temporal graph created in: %s seconds',
time.time() - start)
return k
def calc_pagerank():
sf = gl.SFrame.read_csv('../data/full_citation.csv',
delimiter=',',
error_bad_lines=True)
gr = gl.SGraph(sf,
vid_field='Patent',
src_field='Citation',
dst_field='Patent')
gr = gr.add_edges(sf, src_field='Citation', dst_field='Patent')
pr = gl.pagerank.create(gr)
pr_out = pr['pagerank']
pr_out = pr_out.rename({'__id': 'Patent'})
pr_out = pr_out[['Patent', 'pagerank']]
pr_out.save('../data/full_pagerank.csv', format='csv')
def run_shortest_path(self, analytic):
try:
sf = graphlab.SFrame.read_csv(analytic.dump.get_data_file_path())
g = graphlab.SGraph()
g = g.add_edges(sf, 'src', 'dest')
except Exception as e:
raise Exception(LOAD_FILE, "Error loading the file")
try:
sp = graphlab.shortest_path.create(g)
except Exception as e:
raise Exception(RUN_ALGOS, "Error executing the task")
try:
return sp.get('distance')
except Exception as e:
raise Exception(PROC_FINA, "Error finishing the task: " + str(e))
def run_connected_components(self, analytic):
try:
sf = graphlab.SFrame.read_csv(analytic.dump.get_data_file_path())
g = graphlab.SGraph()
g = g.add_edges(sf, 'src', 'dest')
except Exception as e:
raise Exception(LOAD_FILE, "Error loading the file")
try:
cc = graphlab.connected_components.create(g)
except Exception as e:
raise Exception(RUN_ALGOS, "Error executing the task")
try:
return cc.get('componentid')
except Exception as e:
raise Exception(PROC_FINA, "Error finishing the task: " + str(e))
def sssp_triple_apply(input_graph, src_vid, max_distance=1e30):
g = gl.SGraph(input_graph.vertices, input_graph.edges)
g.vertices['distance'] = \
g.vertices['__id'].apply(lambda x: max_distance if x != src_vid else 0.0)
it = 0
num_changed = len(g.vertices)
start = time.time()
while (num_changed > 0):
g.vertices['changed'] = 0
g = g.triple_apply(sssp_update_fn, ['distance', 'changed'])
num_changed = g.vertices['changed'].sum()
print 'Iteration %d: num_vertices changed = %d' % (it, num_changed)
it = it + 1
print 'Triple apply sssp finished in: %f secs' % (time.time() - start)
return g
def construct_graph():
sf = get_sframe()
actors = sf['actor_name'].unique()
films = sf['film_name'].unique()
g = graphlab.SGraph()
# we do this twice has a hack around its default Directed graph
# this will make it is undirected
g = g.add_edges(sf, src_field='actor_name', dst_field='film_name')
g = g.add_edges(sf, src_field='film_name', dst_field='actor_name')
print "Actor vertex sample:"
g.get_vertices(ids=actors).tail(5)
print "Movie graph summary:\n", g.summary(), "\n"
return g
def label_communities(self):
frame = self.child.g.vertices.join(self.verticy_descriptions,
'__id',
how='left')
frame = frame.groupby(
'community_id', {
"labels": gl.aggregate.CONCAT("description"),
"member_count": gl.aggregate.COUNT("__id")
})
def remove_dups(_str):
words = _str.split()
return " ".join(sorted(set(words), key=words.index))
frame['labels'] = frame['labels'].apply(lambda descriptions: ' '.join(
[remove_dups(x) for x in descriptions]))
frame['labels'] = gl.text_analytics.count_words(frame['labels'])
frame['labels'] = frame['labels'].dict_trim_by_values(3)
stopwords = gl.text_analytics.stopwords()
stopwords.update(['http', 'https'])
frame['labels'] = frame['labels'].dict_trim_by_keys(stopwords,
exclude=True)
frame['labels'] = gl.text_analytics.tf_idf(frame['labels'])
def label_score(row):
new_scores = {}
for label, value in row['labels'].items():
new_scores[label] = value / row['member_count']
return new_scores
frame['labels'] = frame.apply(label_score)
def top_labels(labels_dict):
labels = sorted(labels_dict.items(),
key=lambda x: x[1],
reverse=True)[:5]
return [x[0] for x in labels]
frame['top_labels'] = frame['labels'].apply(top_labels)
frame = self.g.vertices.join(frame, {'__id': 'community_id'})
self.g = gl.SGraph(vertices=frame,
edges=self.g.get_edges(),
vid_field='__id',
src_field='__src_id',
dst_field='__dst_id')
def merge_signal_on_graph(g,
node_signal,
baseid_name,
layer_name,
excluded_ids=None,
use_fast=True,
verbose=True,
remove_self=True):
start = time.time()
if verbose:
LOGGER.info('Start reducing graph to minimum')
p = g
if isinstance(g, nx.Graph) or isinstance(g,
nx.DiGraph): # convert if needed
start2 = time.time()
if verbose:
LOGGER.info('Start networkx to graphlab conversion')
p = utils.networkx_to_graphlab(g)
if verbose:
LOGGER.info('Conversion done in: %s', time.time() - start2)
if use_fast:
good_nodes = node_signal
good_nodes.rename({baseid_name: '__id'})
else:
good_nodes = p.vertices.join(node_signal,
on={'__id': baseid_name},
how='inner')
if excluded_ids:
good_nodes = good_nodes.filter_by(excluded_ids, '__id', exclude=True)
good_edges = p.get_edges(dst_ids=good_nodes['__id']).filter_by(
good_nodes['__id'], '__src_id')
# Remove self-edges
if remove_self:
good_edges = good_edges[(good_edges['__src_id'] -
good_edges['__dst_id']) != 0]
if verbose:
LOGGER.info('Graph reduction done in: %s seconds', time.time() - start)
return gl.SGraph(good_nodes, good_edges)
def createGraph():
zhima_usr = loadZhima()
zhima_usr.rename({'snwb': '_id'})
subgraph_edges = gl.load_sframe(
os.path.join(resultDataFolder, 'subgraph_zhima_2'))
#create graph
sub_G = gl.SGraph()
sub_G = sub_G.add_edges(edges=subgraph_edges,
src_field='src',
dst_field='dst')
#join label to vertices
sub_G.vertices.join(zhima_usr, on='_id', how='left')
# sub_G.vertices.head(5)
print 'save graph'
sub_G.save(os.path.join(resultDataFolder, 'subgraph_zhima'))
def show_recomnedations(self, recoms, existing):
def shorten_name(name):
full_name = name.split(" ")
return "{0}. {1}".format(full_name[0][0], full_name[1])
g = gl.SGraph()
existing.sort()
recoms.sort()
list_existing = []
for recom in recoms:
g = g.add_edges(
gl.Edge(shorten_name(recom[0]), shorten_name(recom[1])))
if recom in existing:
list_existing.append(1)
else:
list_existing.append(0)
pass
g.show(vlabel="id")
print
def run_graph_analytics(data, data_name):
####################################################################################################################
g = gl.SGraph().add_edges(data,
src_field='input_address',
dst_field='output_address')
print(g)
####################################################################################################################
transaction_count = data.groupby(['year', 'month'],
agg.COUNT).sort(['year', 'month'],
ascending=True)
n_month = transaction_count.num_rows()
transaction_count['label'] = transaction_count['month'].astype(
str) + "/" + transaction_count['year'].astype(str)
print(transaction_count)
####################################################################################################################
deg = degree_counting.create(g)
deg_graph = deg[
'graph'] # a new SGraph with degree data attached to each vertex
in_degree = deg_graph.vertices[['__id', 'in_degree']]
out_degree = deg_graph.vertices[['__id', 'out_degree']]
in_degree.export_csv('analytics/' + data_name + '/in_degree.csv',
delimiter=',')
out_degree.export_csv('analytics/' + data_name + '/out_degree.csv',
delimiter=',')
pr = gl.pagerank.create(g)
pr_out = pr['pagerank']
pr_out.export_csv('analytics/' + data_name + '/pr_out.csv', delimiter=',')
def test_directed_no_self_edge(self):
# Directed no self-edge
g = sptgraph.create_spatio_temporal_graph(gen_graph(True),
gen_signal(),
False,
verbose=False)
# The graph has only 1 connected component
h = components.find_connected_components(g)
cc = components.create_component_sframe(h)
comps = components.extract_components(h, cc)
self.assertEqual(1, len(comps))
# We remove the edge (7, 12) to create 2 weakly connected components
nodes = g.vertices
edges = g.edges.add_row_number('eid')
to_remove = g.get_edges(7, 12)
edges = edges[edges['eid'] != to_remove['eid'][0]]
g = gl.SGraph(nodes, edges)
h = components.find_connected_components(g)
cc = components.create_component_sframe(h)
comps = components.extract_components(h, cc)
self.assertEqual(2, len(comps))