python - Numpy Neural Network error:'NeuralNetwork' object has no attribute 'think' -


i interested in learning machine learnging, started clicking around. started following instructions , created code.

from numpy import exp, array, random, dot  class neuralnetwork():     def __init__(self):         # seed genarator         random.seed(1)         self.synaptic_weights = 2 * random.random((3,1)) - 1      def __sigmoid(self, x):         return 1 /(1 + exp(-x))      def predict(self, inputs):         return self.__sigmoid(dot(inputs, self.synaptic_weights))      def __sigmoid_derivative(self, x):         return x * (x - 1)      def train(self, trainingsetinputs, trainingsetoutputs, numberofiterations):         iteration in range(numberofiterations):             output = self.predict(trainingsetinputs)             error = trainingsetoutputs - output             adjustment = dot(trainingsetinputs.t, error *  self.__sigmoid_derivative(output))             self.synaptic_weights += adjustment      if __name__ == '__main__':     # make 1 network     neuralnetwork = neuralnetwork()      print('random starting synaptic weights')     print(neuralnetwork.synaptic_weights)      # training data     trainingsetinputs = array([[0,0,1], [1,1,1], [1,0,1], [0,1,1]])     trainingsetoutputs = array([[0,1,1,0]]).t      #train network 10000 times     neuralnetwork.train(trainingsetinputs, trainingsetoutputs, 10000)      print('new wheights')     print(neuralnetwork.synaptic_weights)      # test network     print("testing")     print(neuralnetwork.think(array([1,0,1])))

i followed instuctions letter, maybe missed something? tutorial here.

edit: error got was: 'neuralnetwork' object has no attribute 'think'

you need create think() method. looking @ code should be:

def think(self, inputs):     #pass inputs through our single neuron(our single neuron)     return self.___sigmoid(dot(inputs, self.synaptic_weights))

do , you'll fine!


Comments

Post a Comment

Popular posts from this blog

Is there a better way to structure post methods in Class Based Views -

i'm using class based views in django , never specify url in ajax calls , omit action parameter in form because know these requests go through post method of class based view. notice view - profile page make many requests depending on user updating on page - post method become convoluted , if/else mess example: def post(self, request, *args, **kwargs): # handle user changing available date if request.post.get('availabledate') != none: self.updateavailabledate(request) return jsonresponse({'result':'success'}) if request.post.get('newprojectname') != none: creative_user = creativeuserprofile.objects.get(id = request.user.id) project = project.create_project(creative_user, request.post['newprojectname']) project.save() return jsonresponse({'projectid': project.id }) if request.post.get('projectimage') != none , request.files['file']: proj
Read more

performance - Why is XCHG reg, reg a 3 micro-op instruction on modern Intel architectures? -

i'm doing micro-optimization on performance critical part of code , came across sequence of instructions (in at&t syntax): add %rax, %rbx mov %rdx, %rax mov %rbx, %rdx i thought had use case xchg allow me shave instruction , write: add %rbx, %rax xchg %rax, %rdx however, dimay found agner fog's instruction tables , xchg 3 micro-op instruction 2 cycle latency on sandy bridge, ivy bridge, broadwell, haswell , skylake. 3 whole micro-ops , 2 cycles of latency! 3 micro-ops throws off 4-1-1-1 cadence , 2 cycle latency makes worse original in best case since last 2 instructions in original might execute in parallel. now... cpu might breaking instruction micro-ops equivalent to: mov %rax, %tmp mov %rdx, %rax mov %tmp, %rdx where tmp anonymous internal register , suppose last 2 micro-ops run in parallel latency 2 cycles. given register renaming occurs on these micro-architectures, though, doesn't make sense me done way. why wouldn't register renamer
Read more

c# - Asp.net web api : redirect unauthorized requst to forbidden page -

im trying redirect unauthorized request forbidden page instead i'm getting forbidden page in response body , how can fix ? here's startup class : app.createperowincontext(storecontext.create); app.createperowincontext<applicationusermanager>(applicationusermanager.create); app.createperowincontext<applicationsigninmanager>(applicationsigninmanager.create); app.usecookieauthentication(new cookieauthenticationoptions { authenticationtype = defaultauthenticationtypes.applicationcookie, expiretimespan = timespan.fromdays(30), }); app.useexternalsignincookie(defaultauthenticationtypes.externalcookie); app.usetwofactorsignincookie(defaultauthenticationtypes.twofactorcookie, timespan.fromminutes(5)); app.usetwofactorrememberbrowsercookie(defaultauthenticationtypes.twofactorrememberbrowsercookie); the method im trying reach : [httpget] [authorize(roles = "admin")] public string getcurrentusername() { return userman
Read more