Пример #1
0
 def model(self, param):
     """Метод для моделирования исходных данных"""
     if param[2] == "N":
         return distr.normal(param[0], param[1], param[3])
     elif param[2] == "LN":
         return distr.logNormal(param[0], param[1], param[3])
     elif param[2] == "R":
         return distr.uniform(param[0], param[1], param[3])
     elif param[2] == "G":
         return distr.gamma(param[0], param[1], param[3])
     elif param[2] == "BS":
         return distr.birnbaumSaunders(param[0], param[1], param[3])
     elif param[2] == "P":
         return distr.pareto(param[0], param[1], param[3])
     else:
         return 0
Пример #2
0
del nodeList
	
centralities = 	{
				'Degree' : centrality.degree(network),
				'Betweenness' : centrality.betweenness(network),
				'Closeness' : centrality.closeness(network)
				}
centralities['Hybrid'] = centrality.hybrid( [centralities[name] for name in centralities] )

results = 0

print ''
for trial in range(numTrials):
	thresholds = []
	if distro == 'UNIFORM':
		thresholds = distribution.uniform(network)
	elif distro == 'NORMAL':
		thresholds = distribution.normal(network)
	elif distro == 'LONGTAIL':
		thresholds = distribution.longtail(network, 20)
	else:
		print '\nDistribution should be UNIFORM, NORMAL, or LONGTAIL'
		quit()
		
	for i in range(len(thresholds)):
		#print 'thresholds[' + str(i) + '] = ' + str(thresholds[i])
		network[i]['threshold'] = thresholds[i]
	
	if results == 0:
		results = {budget:{method:[] for method in centralities} for budget in budgets}
	
Пример #3
0
#           FRANCE

if __name__ == '__main__':
    import numpy as np
    import matplotlib
    matplotlib.use('Agg')
    import matplotlib.pyplot as plt
    from network import NG,SOM,DSOM
    from distribution import uniform, normal, ring

    n = 8
    epochs = 20000
    N = 10000

    np.random.seed(123)
    samples = uniform(n=N) 

    print 'Neural Gas'
    np.random.seed(123)
    ng = NG((n,n,2))
    ng.learn(samples,epochs)
    print 'Self-Organizing Map'
    np.random.seed(123)
    som = SOM((n,n,2))
    som.learn(samples,epochs)
    print 'Dynamic Self-Organizing Map'
    np.random.seed(123)
    dsom = DSOM((n,n,2), elasticity=1.75)
    dsom.learn(samples,epochs)

    fig = plt.figure(figsize=(21,8))
if __name__ == '__main__':
    import numpy as np
    import matplotlib
    matplotlib.use('Agg')
    import matplotlib.pyplot as plt
    from network import SOM, DSOM
    from distribution import uniform, normal, ring

    size = 8
    epochs = 10000
    n = 10000

    np.random.seed(12345)

    samples_1 = uniform(n=n, center=(0.25,0.25), scale=(0.2,0.2))
    samples_2 = uniform(n=n, center=(0.25,0.75), scale=(0.2,0.2))
    samples_3 = uniform(n=n, center=(0.75,0.25), scale=(0.2,0.2))
    samples_4 = uniform(n=n, center=(0.75,0.75), scale=(0.2,0.2))

    mag = 1000
    s1 = np.array([0,0])
    for x in range(0,mag):
        v = x/float(mag)
        b = np.array([v, np.sin(7*v)/5 + np.random.random_sample()/3+ 0.3])
        s1 = np.row_stack((s1,b))

    s2 = np.array([0,0])
    for x in range(0,mag):
        v = x/float(mag)
        b = np.array([v, np.sin(7*(v+.1))/5 + np.random.random_sample()/3+ 0.3])
Пример #5
0
if __name__ == "__main__":
    import numpy as np
    import matplotlib

    matplotlib.use("Agg")
    import matplotlib.pyplot as plt
    from network import NG, SOM, DSOM
    from distribution import uniform, normal, ring

    n = 8
    epochs = 20000
    N = 10000

    np.random.seed(123)
    samples = uniform(n=N)

    print "Neural Gas"
    np.random.seed(123)
    ng = NG((n, n, 2))
    ng.learn(samples, epochs)
    print "Self-Organizing Map"
    np.random.seed(123)
    som = SOM((n, n, 2))
    som.learn(samples, epochs)
    print "Dynamic Self-Organizing Map"
    np.random.seed(123)
    dsom = DSOM((n, n, 2), elasticity=1.75)
    dsom.learn(samples, epochs)

    fig = plt.figure(figsize=(21, 8))
Пример #6
0
if __name__ == '__main__':
    import numpy as np
    import matplotlib
    matplotlib.use('Agg')
    import matplotlib.pyplot as plt
    from network import NG,SOM,DSOM
    from distribution import uniform, normal, ring

    size = 8
    epochs = 20000
    n = 10000

    np.random.seed(12345)

    samples_1 = uniform(n=n, center=(0.25,0.25), scale=(0.25,0.25))
    samples_2 = uniform(n=n, center=(0.75,0.75), scale=(0.25,0.25))
    samples_3 = uniform(n=n, center=(0.25,0.75), scale=(0.25,0.25))
    samples_4 = uniform(n=n, center=(0.75,0.25), scale=(0.25,0.25))


    print 'Neural gas'
    np.random.seed(12345)
    ng = NG((size,size,2))
    ng.learn([samples_1,   samples_2,   samples_3,   samples_4],
             [2*epochs//8, 2*epochs//8, 2*epochs//8, 2*epochs//8])

    print 'Self-Organizing Map'
    np.random.seed(12345)
    som = SOM((size,size,2))
    som.learn([samples_1,   samples_2,   samples_3,   samples_4],