Exemplo n.º 1
0
    def run(self,
            epochs=1,
            learning_rate=1.0,
            regularization=0.0,
            momentum=0.01):
        processor = NN_process.PairBisProcessor(
            '../data/pairs/sets/enwiki_pairs_20-train.txt',
            '../data/pairs/sets/enwiki_no_pairs_20-train.txt',
            '../data/model/docfreq.npy', '../data/model/minimal', WORDS,
            EMBEDDING_DIM, BATCH_SIZE)
        train_x1 = theano.shared(value=processor.x1,
                                 name='train_x1',
                                 borrow=False)
        train_x2 = theano.shared(value=processor.x2,
                                 name='train_x2',
                                 borrow=False)
        train_x1_bis = theano.shared(value=processor.x1_bis,
                                     name='train_x1_bis',
                                     borrow=False)
        train_x2_bis = theano.shared(value=processor.x2_bis,
                                     name='train_x2_bis',
                                     borrow=False)
        train_y = theano.shared(value=processor.y,
                                name='train_y',
                                borrow=False)
        train_z = theano.shared(value=processor.z,
                                name='train_z',
                                borrow=False)

        print 'Initializing train function...'
        train = self.train_function_momentum(train_x1, train_x2, train_x1_bis,
                                             train_x2_bis, train_y, train_z)

        t = Thread(target=processor.process)
        t.start()
        for e in xrange(epochs):
            processor.new_epoch()

            processor.lock.acquire()
            while not processor.ready:
                processor.lock.wait()
            processor.lock.release()

            train_x1.set_value(processor.x1, borrow=False)
            train_x2.set_value(processor.x2, borrow=False)
            train_x1_bis.set_value(processor.x1_bis, borrow=False)
            train_x2_bis.set_value(processor.x2_bis, borrow=False)
            train_y.set_value(processor.y, borrow=False)
            train_z.set_value(processor.z, borrow=False)

            processor.lock.acquire()
            processor.cont = True
            processor.ready = False
            processor.lock.notifyAll()
            processor.lock.release()

            for b in xrange(BATCHES):
                #c = []
                cost = train(lr=learning_rate,
                             reg=regularization,
                             mom=momentum)
                #c.append(cost)

                print 'Training, batch %d, cost %.5f' % (b, cost)
                print self.model1.W.get_value()

                processor.lock.acquire()
                while not processor.ready:
                    processor.lock.wait()
                processor.lock.release()

                train_x1.set_value(processor.x1, borrow=False)
                train_x2.set_value(processor.x2, borrow=False)
                train_x1_bis.set_value(processor.x1_bis, borrow=False)
                train_x2_bis.set_value(processor.x2_bis, borrow=False)
                train_y.set_value(processor.y, borrow=False)
                train_z.set_value(processor.z, borrow=False)

                processor.lock.acquire()
                processor.cont = True
                processor.ready = False
                if b == BATCHES - 1 and e == epochs - 1:
                    processor.stop = True
                processor.lock.notifyAll()
                processor.lock.release()

            #print 'Training, epoch %d, cost %.5f' % (e, numpy.mean(c))

        self.save_me('run1.npy')