def get_HD_from_UTMLL(u1, u2, radius=earthRadiusKMs):
lat1, long1, _ = u1.split('_')
corr1 = (float(lat1), float(long1))
lat2, long2, _ = u2.split('_')
corr2 = (float(lat2), float(long2))
dist = getHaversineDistance(corr1, corr2, radius)
return dist
def getHDfromUTMLL(u1,u2, radius):
lat1,long1,_=u1.split('_')
corr1=(float(lat1),float(long1))
lat2,long2,_=u2.split('_')
corr2=(float(lat2),float(long2))
dist=getHaversineDistance(corr1,corr2,radius)
return dist
def map_line_to_user(self, key, line):
if False: yield
for user, creator in ReadFile.read_json_yield_user(line):
dist = getHaversineDistance([creator[1], creator[2]],
[self.query_lat, self.query_lng])
s = (self.dmin / (dist + self.dmin))**1.01
yield user, [s, creator[3], creator[4]]
def addLocationToLocationDistanceToDB():
i = 0
for data in locationGraphIterator():
try:
d = map(float, data['e'].split())
d = getHaversineDistance(d[0:2],d[2:])
locationToLocationCollection.insert({'_id': data['e'], 'u': data['w'], 'd': d})
except Exception as e: print i, 'Exception while processing:', data; i+=1
def read_json_yield_uid1(line):
line = cjson.decode(line)
user_id = line['user_id']
tags = line['tag']
lat1 = line['list_creator_lat']
lng1 = line['list_creator_lng']
user_lat = line['user_lat']
user_lng = line['user_lng']
distance = getHaversineDistance([lat1, lng1], [user_lat, user_lng])
for tag in set(tags):
yield user_id, [tag, distance]
def read_json_yield_uid1(line):
line = cjson.decode(line)
user_id=line['user_id']
tags=line['tag']
lat1=line['list_creator_lat']
lng1=line['list_creator_lng']
user_lat=line['user_lat']
user_lng=line['user_lng']
distance=getHaversineDistance([lat1,lng1],[user_lat,user_lng])
for tag in set(tags):
yield user_id,[tag,distance]
def read_json_yield_uid2(line):
line = cjson.decode(line)
user_id = line['user_id']
tags = line['tag']
lat1 = line['list_creator_lat']
lng1 = line['list_creator_lng']
user_lat = line['user_lat']
user_lng = line['user_lng']
distance = getHaversineDistance(target_loc, [user_lat, user_lng])
if distance <= 10:
distance = 0
elif distance > 10:
distance -= 10
for tag in set(tags):
yield user_id, [tag, distance]
def read_json_yield_uid2(line):
line = cjson.decode(line)
user_id=line['user_id']
tags=line['tag']
lat1=line['list_creator_lat']
lng1=line['list_creator_lng']
user_lat=line['user_lat']
user_lng=line['user_lng']
distance=getHaversineDistance(target_loc,[user_lat,user_lng])
if distance <= 10:
distance=0
elif distance > 10:
distance-=10
for tag in set(tags):
yield user_id,[tag,distance]
def getLocalityIndexAtK(occurances, kValue):
''' Locality index at k - for a hashtag is the minimum radius that covers k percentage of occurrances.
A high locality index suggests hashtag was global with a small index suggests it was local.
To find locality index at k, I must find a point that is closest to k percentage of occurances.
Brute force requires nC2 complexity.
Hence, use lattices of bigger size technique.
'''
def getLatticeThatGivesMinimumLocalityIndexAtK():
occurancesDict = {'occurances': occurances}
for accuracy in [4, 2, 1, 0.5, ACCURACY]: occurancesDict = getLatticeThatGivesMinimumLocalityIndexAtKForAccuracy(occurancesDict['occurances'], accuracy)
return occurancesDict['sourceLattice']
def getLatticeThatGivesMinimumLocalityIndexAtKForAccuracy(occurances, accuracy):
occurancesDistributionInHigherLattice, distanceMatrix = defaultdict(list), defaultdict(dict)
for oc in occurances: occurancesDistributionInHigherLattice[getLatticeLid(oc, accuracy)].append(oc)
higherLattices = sorted(occurancesDistributionInHigherLattice.iteritems(), key=lambda t: len(t[1]), reverse=True)
for hl1, hl2 in combinations(occurancesDistributionInHigherLattice, 2): distanceMatrix[hl1][hl2] = distanceMatrix[hl2][hl1] = getHaversineDistance(getLocationFromLid(hl1.replace('_', ' ')), getLocationFromLid(hl2.replace('_', ' ')))
for k,v in distanceMatrix.iteritems(): distanceMatrix[k] = sorted(v.iteritems(), key=itemgetter(1))
occurancesToReturn = []
currentHigherLatticeSet, totalOccurances = {'distance': ()}, float(len(occurances))
for hl, occs in higherLattices:
higherLatticeSet = {'distance': 0, 'observedOccurances': len(occs), 'lattices': [hl], 'sourceLattice': hl}
while currentHigherLatticeSet['distance']>higherLatticeSet['distance'] and higherLatticeSet['observedOccurances']/totalOccurances<0.5:
(l, d) = distanceMatrix[hl][0];
distanceMatrix[hl]=distanceMatrix[hl][1:]
higherLatticeSet['distance']+=d
higherLatticeSet['lattices'].append(l)
higherLatticeSet['observedOccurances']+=len(occurancesDistributionInHigherLattice[l])
if currentHigherLatticeSet==None or currentHigherLatticeSet['distance']>higherLatticeSet['distance']: currentHigherLatticeSet=higherLatticeSet
for l in currentHigherLatticeSet['lattices']: occurancesToReturn+=occurancesDistributionInHigherLattice[l]
# return {'distance': currentHigherLatticeSet['distance'], 'occurances': occurancesToReturn, 'sourceLattice': getLocationFromLid(currentHigherLatticeSet['sourceLattice'].replace('_', ' '))}
return {'occurances': occurancesToReturn, 'sourceLattice': getLocationFromLid(currentHigherLatticeSet['sourceLattice'].replace('_', ' '))}
occurancesDistributionInHigherLattice = defaultdict(int)
for oc in occurances: occurancesDistributionInHigherLattice[getLatticeLid(oc, ACCURACY)]+=1
totalOccurances, distance, observedOccuraces = float(len(occurances)), 0, 0
lattice = getLatticeThatGivesMinimumLocalityIndexAtK()
sortedLatticeObjects = sorted([(getLocationFromLid(k.replace('_', ' ')), getHaversineDistance(lattice, getLocationFromLid(k.replace('_', ' '))), v) for k, v in occurancesDistributionInHigherLattice.iteritems()],
key=itemgetter(1))
for l, d, oc in sortedLatticeObjects:
distance=d; observedOccuraces+=oc
if observedOccuraces/totalOccurances>=kValue: break
return (d, lattice)
def plot_correlation_between_influence_similarity_and_distance(model_ids, distance_accuracy=500):
def get_larger_lid(lid): return getLatticeLid(getLocationFromLid(lid.replace('_', ' ')), 10)
for model_id in model_ids:
mf_influence_type_to_tuo_distance_and_similarity = defaultdict(list)
for line_count, (location, tuo_neighbor_location_and_mf_influence_type_and_similarity) in \
enumerate(FileIO.iterateJsonFromFile(tuo_location_and_tuo_neighbor_location_and_mf_influence_type_and_similarity_file%model_id)):
print line_count
for neighbor_location, mf_influence_type_to_similarity in \
tuo_neighbor_location_and_mf_influence_type_and_similarity:
distance = getHaversineDistance(getLocationFromLid(location.replace('_', ' ')), getLocationFromLid(neighbor_location.replace('_', ' ')))
distance = int(distance)/distance_accuracy*distance_accuracy + distance_accuracy
for influence_type, similarity in mf_influence_type_to_similarity.iteritems():
mf_influence_type_to_tuo_distance_and_similarity[influence_type].append([distance, similarity])
subpot_id = 211
for influence_type in \
[InfluenceMeasuringModels.TYPE_OUTGOING_INFLUENCE, InfluenceMeasuringModels.TYPE_INCOMING_INFLUENCE]:
tuo_distance_and_similarity = mf_influence_type_to_tuo_distance_and_similarity[influence_type]
tuo_distance_and_similarities = [(distance, zip(*ito_tuo_distance_and_similarity)[1])
for distance, ito_tuo_distance_and_similarity in groupby(
sorted(tuo_distance_and_similarity, key=itemgetter(0)),
key=itemgetter(0)
)
]
plt.subplot(subpot_id)
x_distances, y_similarities = [], []
for distance, similarities in tuo_distance_and_similarities:
# similarities=filter_outliers(similarities)
x_distances.append(distance), y_similarities.append(np.mean(similarities))
# x_distances, y_similarities = splineSmooth(x_distances, y_similarities)
plt.semilogy(x_distances, y_similarities, c = InfluenceMeasuringModels.INFLUENCE_PROPERTIES[influence_type]['color'],
lw=2, marker = InfluenceMeasuringModels.INFLUENCE_PROPERTIES[influence_type]['marker'])
plt.ylabel(InfluenceMeasuringModels.INFLUENCE_PROPERTIES[influence_type]['label'], fontsize=13)
subpot_id+=1
plt.xlabel('Distance (Miles)', fontsize=13)
# plt.show()
savefig('images/%s.png'%(GeneralMethods.get_method_id()))
def getLatticeThatGivesMinimumLocalityIndexAtKForAccuracy(occurances, accuracy):
occurancesDistributionInHigherLattice, distanceMatrix = defaultdict(list), defaultdict(dict)
for oc in occurances: occurancesDistributionInHigherLattice[getLatticeLid(oc, accuracy)].append(oc)
higherLattices = sorted(occurancesDistributionInHigherLattice.iteritems(), key=lambda t: len(t[1]), reverse=True)
for hl1, hl2 in combinations(occurancesDistributionInHigherLattice, 2): distanceMatrix[hl1][hl2] = distanceMatrix[hl2][hl1] = getHaversineDistance(getLocationFromLid(hl1.replace('_', ' ')), getLocationFromLid(hl2.replace('_', ' ')))
for k,v in distanceMatrix.iteritems(): distanceMatrix[k] = sorted(v.iteritems(), key=itemgetter(1))
occurancesToReturn = []
currentHigherLatticeSet, totalOccurances = {'distance': ()}, float(len(occurances))
for hl, occs in higherLattices:
higherLatticeSet = {'distance': 0, 'observedOccurances': len(occs), 'lattices': [hl], 'sourceLattice': hl}
while currentHigherLatticeSet['distance']>higherLatticeSet['distance'] and higherLatticeSet['observedOccurances']/totalOccurances<0.5:
(l, d) = distanceMatrix[hl][0];
distanceMatrix[hl]=distanceMatrix[hl][1:]
higherLatticeSet['distance']+=d
higherLatticeSet['lattices'].append(l)
higherLatticeSet['observedOccurances']+=len(occurancesDistributionInHigherLattice[l])
if currentHigherLatticeSet==None or currentHigherLatticeSet['distance']>higherLatticeSet['distance']: currentHigherLatticeSet=higherLatticeSet
for l in currentHigherLatticeSet['lattices']: occurancesToReturn+=occurancesDistributionInHigherLattice[l]
# return {'distance': currentHigherLatticeSet['distance'], 'occurances': occurancesToReturn, 'sourceLattice': getLocationFromLid(currentHigherLatticeSet['sourceLattice'].replace('_', ' '))}
return {'occurances': occurancesToReturn, 'sourceLattice': getLocationFromLid(currentHigherLatticeSet['sourceLattice'].replace('_', ' '))}
def getMeanDistanceFromSource(source, llids): return np.mean([getHaversineDistance(source, p) for p in llids]) def getLocalityIndexAtK(occurances, kValue):
def getRadius(locations):
meanLid = getCenterOfMass(locations,accuracy=LATTICE_ACCURACY)
distances = [getHaversineDistance(meanLid, p) for p in locations]
_, upperBoundForDistance = getOutliersRangeUsingIRQ(distances)
return np.mean(filter(lambda d: d<=upperBoundForDistance, distances))
dist=getHaversineDistance(corr1,corr2,radius)
return dist
earthRadiusMiles = 3958.761
outfile='/spare/wei/folk/dallas_tagging'
#outfile1='/spare/wei/folk/dist_greater_than_50_less_than_500_2'
#outfile2='/spare/wei/folk/dist_greater_than_500_less_than_3000_2'
#outfile3='/spare/wei/folk/dist_greater_than_3000_2'
outfile=open(outfile,'w')
#outfile1=open(outfile1,'w')
#outfile2=open(outfile2,'w')
#outfile3=open(outfile3,'w')
for line in open(infile,'r'):
line = cjson.decode(line)
lat_u,lng_u=line['user_lat'],line['user_lng']
lat_c,lng_c = 32.78014,-96.800451
# lat_c,lng_c=line['list_creator_lat'],line['list_creator_lng']
# lat_c,lng_c = 40.705631,-73.978003
# lat_c,lng_c = 37.77493,-122.419416
# lat_c,lng_c=29.760193,-95.36939
# lat_c,lng_c = 30.627977,-96.334407
dist = getHaversineDistance([lat_u,lng_u],[lat_c,lng_c],earthRadiusMiles)
if dist <= 20:
outfile.write(cjson.encode(line)+'\n')
# elif dist>50 and dist<500:
# outfile1.write(cjson.encode(line)+'\n')
# elif dist>500 and dist<3000:
# outfile2.write(cjson.encode(line)+'\n')
# else:
# outfile3.write(cjson.encode(line)+'\n')
def _haversine_distance(self, location, neighbor_location):
loc_lat_long = UTMConverter.getLatLongUTMIdInLatLongForm(location)
nei_loc_lat_long = UTMConverter.getLatLongUTMIdInLatLongForm(neighbor_location)
return getHaversineDistance(loc_lat_long, nei_loc_lat_long)
def map_line_to_user(self,key,line):
if False:yield
for user,creator in ReadFile.read_json_yield_user(line):
dist=getHaversineDistance([creator[1],creator[2]],[self.query_lat,self.query_lng])
s=(self.dmin/(dist+self.dmin))**1.01
yield user,[s,creator[3],creator[4]]
