def mm(tid, method, interval=1):
alg = algs[method]
gw = cg.new_gw()
trd = cdb.new_track_reader(offset = 0)
pwd = cdb.new_path_writer_for_method(method = method)
pt2j = cj.new_pt2geojson(method = method)
track = trd.fetch_by_id(tid)
track.sample(interval)
track.summary()
pt2j.write_t_geojson(track)
alg.prepare(gw)
path = alg.match(gw, track)
pt2j.write_p_geojson(path)
# pwd.insert_update(path)
path.summary()
del trd,pwd
return path
def mm(tid, method, interval=1):
alg = algs[method]
gw = cg.new_gw()
trd = cdb.new_track_reader(offset=0)
pwd = cdb.new_path_writer_for_method(method=method)
pt2j = cj.new_pt2geojson(method=method)
track = trd.fetch_by_id(tid)
track.sample(interval)
track.summary()
pt2j.write_t_geojson(track)
alg.prepare(gw)
path = alg.match(gw, track)
pt2j.write_p_geojson(path)
# pwd.insert_update(path)
path.summary()
del trd, pwd
return path
def insert_tracks_attr():
trd = cdb.new_track_reader()
if trd is None:
return
tawd = cdb.new_track_attr_writer()
track = trd.fetch_one()
while track is not None:
if track.cuid >= from_cuid and track.cuid <= to_cuid:
print trd.fetched_num, track.tid
tawd.insert(track)
track = trd.fetch_one()
del trd
del tawd
def insert_tracks_attr():
trd = cdb.new_track_reader()
if trd is None:
return
tawd = cdb.new_track_attr_writer()
track = trd.fetch_one()
while track is not None:
if track.cuid >= from_cuid and track.cuid <= to_cuid:
print trd.fetched_num, track.tid
tawd.insert(track)
track = trd.fetch_one()
del trd
del tawd
def compare():
gw = cg.new_gw()
trd = cdb.new_track_reader(offset=0)
prd = cdb.new_path_reader(gw=gw, tbname="taxi_paths_truth")
global matched_length, missed_length, false_length
matched_length = {}
missed_length = {}
false_length = {}
for method in algs.iterkeys():
matched_length[method] = {}
missed_length[method] = {}
false_length[method] = {}
for interval in intervals:
matched_length[method][interval] = []
missed_length[method][interval] = []
false_length[method][interval] = []
for method in algs.iterkeys():
alg = algs[method]
alg.prepare(gw)
for tid in tids:
print method, tid,
gt_path = prd.fetch_path_by_tid(tid)
for interval in intervals:
print interval,
path = mm(gw, trd, method, tid, interval)
if path is None:
print "failed"
continue
result = path.compare(gt_path)
matched_length[method][interval].append(
result['matched_length'])
missed_length[method][interval].append(result['missed_length'])
false_length[method][interval].append(result['false_length'])
print ""
for method in algs.iterkeys():
for interval in intervals:
print method, interval,
print sum(matched_length[method][interval]),
print sum(missed_length[method][interval]),
print sum(false_length[method][interval])
def compare():
gw = cg.new_gw()
trd = cdb.new_track_reader(offset = 0)
prd = cdb.new_path_reader(gw=gw, tbname="taxi_paths_truth")
global matched_length, missed_length, false_length
matched_length = {}
missed_length = {}
false_length = {}
for method in algs.iterkeys():
matched_length[method] = {}
missed_length[method] = {}
false_length[method] = {}
for interval in intervals:
matched_length[method][interval] = []
missed_length[method][interval] = []
false_length[method][interval] = []
for method in algs.iterkeys():
alg = algs[method]
alg.prepare(gw)
for tid in tids:
print method,tid,
gt_path = prd.fetch_path_by_tid(tid)
for interval in intervals:
print interval,
path = mm(gw, trd, method, tid, interval)
if path is None:
print "failed"
continue
result = path.compare(gt_path)
matched_length[method][interval].append(result['matched_length'])
missed_length[method][interval].append(result['missed_length'])
false_length[method][interval].append(result['false_length'])
print ""
for method in algs.iterkeys():
for interval in intervals:
print method,interval,
print sum(matched_length[method][interval]),
print sum(missed_length[method][interval]),
print sum(false_length[method][interval])
def insert_paths_attr():
gw = cg.new_gw()
prd = cdb.new_path_reader_for_method(method='bn', gw=gw, limit=10000, offset=0)
if prd is None:
return
trd = cdb.new_track_reader()
pawd = cdb.new_path_attr_writer('taxi_paths_bn_attr')
path = prd.fetch_one()
while path is not None:
print prd.fetched_num, path.tid
track = trd.fetch_by_id(path.tid)
pawd.insert(path, track)
path = prd.fetch_one()
del prd
del pawd
def insert_paths_attr():
gw = cg.new_gw()
prd = cdb.new_path_reader_for_method(method='bn',
gw=gw,
limit=10000,
offset=0)
if prd is None:
return
trd = cdb.new_track_reader()
pawd = cdb.new_path_attr_writer('taxi_paths_bn_attr')
path = prd.fetch_one()
while path is not None:
print prd.fetched_num, path.tid
track = trd.fetch_by_id(path.tid)
pawd.insert(path, track)
path = prd.fetch_one()
del prd
del pawd
def init_path_track_reader():
self.prd = cdb.new_path_reader_for_method(method = self.method, offset = 0)
self.trd = cdb.new_track_reader(offset = 0)