parent
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# Words proccesed: 650250
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# Word indeks: 50023
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# Word number: 50023
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from lxml import etree
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import time
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from prepare_data import *
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# def xml_words_generator(xml_path):
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# for event, element in etree.iterparse(xml_path, tag="LexicalEntry", encoding="UTF-8"):
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# words = []
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# for child in element:
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# if child.tag == 'WordForm':
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# msd = None
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# word = None
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# for wf in child:
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# if 'att' in wf.attrib and wf.attrib['att'] == 'msd':
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# msd = wf.attrib['val']
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# elif wf.tag == 'FormRepresentation':
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# for form_rep in wf:
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# if form_rep.attrib['att'] == 'zapis_oblike':
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# word = form_rep.attrib['val']
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# #if msd is not None and word is not None:
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# # pass
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# #else:
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# # print('NOOOOO')
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# words.append([word, '', msd, word])
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# yield words
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#
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#
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# gen = xml_words_generator('data/Sloleks_v1.2_p2.xml')
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word_glob_num = 0
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word_limit = 1000
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iter_num = 1000
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word_index = 0
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# iter_index = 0
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# words = []
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#
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# lexical_entries_load_number = 0
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# lexical_entries_save_number = 0
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#
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# # INSIDE
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# # word_glob_num = 1500686
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# word_glob_num = 1550705
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#
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# # word_limit = 1500686
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# word_limit = 1550705
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#
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# iter_index = 31
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# done_lexical_entries = 33522
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data = Data('s', shuffle_all_inputs=False)
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accentuated_content = data._read_content('data/new_sloleks/new_sloleks.tab')
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start_timer = time.time()
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print('Copy initialization complete')
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with open("data/new_sloleks/final_sloleks.xml", "ab") as myfile:
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# myfile2 = open('data/new_sloleks/p' + str(iter_index) + '.xml', 'ab')
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for event, element in etree.iterparse('data/Sloleks_v1.2.xml', tag="LexicalEntry", encoding="UTF-8", remove_blank_text=True):
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# if word_glob_num >= word_limit:
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# myfile2.close()
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# myfile2 = open('data/new_sloleks/p' + str(iter_index) + '.xml', 'ab')
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# iter_index += 1
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# print("Words proccesed: " + str(word_glob_num))
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#
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# print("Word indeks: " + str(word_index))
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# print("Word number: " + str(len(words)))
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#
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# # print("lexical_entries_load_number: " + str(lexical_entries_load_number))
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# # print("lexical_entries_save_number: " + str(lexical_entries_save_number))
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#
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# end_timer = time.time()
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# print("Elapsed time: " + "{0:.2f}".format((end_timer - start_timer) / 60.0) + " minutes")
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lemma = ''
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accentuated_word_location = ''
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accentuated_word = ''
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for child in element:
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if child.tag == 'Lemma':
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for wf in child:
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if 'att' in wf.attrib and wf.attrib['att'] == 'zapis_oblike':
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lemma = wf.attrib['val']
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if child.tag == 'WordForm':
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msd = None
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word = None
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for wf in child:
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if 'att' in wf.attrib and wf.attrib['att'] == 'msd':
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msd = wf.attrib['val']
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elif wf.tag == 'FormRepresentation':
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for form_rep in wf:
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if form_rep.attrib['att'] == 'zapis_oblike':
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word = form_rep.attrib['val']
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# if msd is not None and word is not None:
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# pass
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# else:
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# print('NOOOOO')
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word_index = (word_index - 500) % len(accentuated_content)
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word_index_sp = (word_index - 1) % len(accentuated_content)
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while word_index != word_index_sp:
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if word == accentuated_content[word_index][0] and msd == accentuated_content[word_index][2] and \
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lemma == accentuated_content[word_index][1]:
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accentuated_word_location = accentuated_content[word_index][4]
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accentuated_word = accentuated_content[word_index][5][:-1]
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del(accentuated_content[word_index])
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break
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word_index = (word_index + 1) % len(accentuated_content)
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if word_index == word_index_sp:
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print('ERROR IN ' + word + ' : ' + lemma + ' : ' + msd)
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# print('ERROR IN ' + word + ' : ' + accentuated_content[word_index][0] + ' OR ' + msd + ' : '
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# + accentuated_content[word_index][2])
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# words.append([word, '', msd, word])
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new_element = etree.Element('feat')
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new_element.attrib['att'] = 'naglasna_mesta_besede'
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new_element.attrib['val'] = accentuated_word_location
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wf.append(new_element)
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new_element = etree.Element('feat')
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new_element.attrib['att'] = 'naglašena_beseda'
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new_element.attrib['val'] = accentuated_word
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wf.append(new_element)
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word_glob_num += 1
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# word_index += 1
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# print(etree.tostring(element, encoding="UTF-8"))
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# myfile2.write(etree.tostring(element, encoding="UTF-8", pretty_print=True))
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if word_glob_num > word_limit:
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print('Proccessed ' + str(word_glob_num) + ' words')
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end_timer = time.time()
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print("Elapsed time: " + "{0:.2f}".format((end_timer - start_timer) / 60.0) + " minutes")
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word_limit += iter_num
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break
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myfile.write(etree.tostring(element, encoding="UTF-8", pretty_print=True))
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element.clear()
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@ -1,61 +0,0 @@
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import numpy
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import theano
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import theano.tensor as T
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rng = numpy.random
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N = 400 # training sample size
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feats = 784 # number of input variables
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# generate a dataset: D = (input_values, target_class)
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D = (rng.randn(N, feats), rng.randint(size=N, low=0, high=2))
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training_steps = 10000
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# Declare Theano symbolic variables
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x = T.dmatrix("x")
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y = T.dvector("y")
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# initialize the weight vector w randomly
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#
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# this and the following bias variable b
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# are shared so they keep their values
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# between training iterations (updates)
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w = theano.shared(rng.randn(feats), name="w")
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# initialize the bias term
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b = theano.shared(0., name="b")
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print("Initial model:")
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print(w.get_value())
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print(b.get_value())
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# Construct Theano expression graph
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p_1 = 1 / (1 + T.exp(-T.dot(x, w) - b)) # Probability that target = 1
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prediction = p_1 > 0.5 # The prediction thresholded
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xent = -y * T.log(p_1) - (1-y) * T.log(1-p_1) # Cross-entropy loss function
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cost = xent.mean() + 0.01 * (w ** 2).sum()# The cost to minimize
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gw, gb = T.grad(cost, [w, b]) # Compute the gradient of the cost
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# w.r.t weight vector w and
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# bias term b
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# (we shall return to this in a
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# following section of this tutorial)
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# Compile
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train = theano.function(
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inputs=[x,y],
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outputs=[prediction, xent],
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updates=((w, w - 0.1 * gw), (b, b - 0.1 * gb)))
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predict = theano.function(inputs=[x], outputs=prediction)
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# Train
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for i in range(training_steps):
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pred, err = train(D[0], D[1])
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print("Final model:")
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print(w.get_value())
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print(b.get_value())
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print("target values for D:")
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print(D[1])
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print("prediction on D:")
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print(predict(D[0]))
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import numpy
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import theano
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import theano.tensor as T
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rng = numpy.random
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N = 400 # training sample size
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feats = 784 # number of input variables
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# generate a dataset: D = (input_values, target_class)
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D = (rng.randn(N, feats), rng.randint(size=N, low=0, high=2))
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training_steps = 10000
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# Declare Theano symbolic variables
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x = T.dmatrix("x")
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y = T.dvector("y")
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# initialize the weight vector w randomly
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#
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# this and the following bias variable b
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# are shared so they keep their values
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# between training iterations (updates)
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w = theano.shared(rng.randn(feats), name="w")
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# initialize the bias term
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b = theano.shared(0., name="b")
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print("Initial model:")
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print(w.get_value())
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print(b.get_value())
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# Construct Theano expression graph
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p_1 = 1 / (1 + T.exp(-T.dot(x, w) - b)) # Probability that target = 1
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prediction = p_1 > 0.5 # The prediction thresholded
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xent = -y * T.log(p_1) - (1-y) * T.log(1-p_1) # Cross-entropy loss function
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cost = xent.mean() + 0.01 * (w ** 2).sum()# The cost to minimize
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gw, gb = T.grad(cost, [w, b]) # Compute the gradient of the cost
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# w.r.t weight vector w and
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# bias term b
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# (we shall return to this in a
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# following section of this tutorial)
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def set_value_at_position(x, y, prediction, xent, w, b):
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p_1 = 1 / (1 + T.exp(-T.dot(x, w) - b)) # Probability that target = 1
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prediction = p_1 > 0.5 # The prediction thresholded
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xent = -y * T.log(p_1) - (1 - y) * T.log(1 - p_1) # Cross-entropy loss function
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cost = xent.mean() + 0.01 * (w ** 2).sum() # The cost to minimize
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gw, gb = T.grad(cost, [w, b])
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w = w - 0.1 * gw
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b = b - 0.1 * gb
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return w, b
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result, updates = theano.scan(fn=set_value_at_position,
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outputs_info=[prediction, xent],
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sequences=[x, y],
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non_sequences=[w, b],
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n_steps=training_steps)
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calculate_scan = theano.function(inputs=[x, y], outputs=[prediction, xent], updates=updates)
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# Compile
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train = theano.function(
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inputs=[x,y],
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outputs=[prediction, xent],
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updates=((w, w - 0.1 * gw), (b, b - 0.1 * gb)))
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predict = theano.function(inputs=[x], outputs=prediction)
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# Train
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for i in range(training_steps):
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pred, err = train(D[0], D[1])
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print("Final model:")
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print(w.get_value())
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print(b.get_value())
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print("target values for D:")
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print(D[1])
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print("prediction on D:")
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print(predict(D[0]))
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import numpy as np
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import theano.tensor as T
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from theano import function
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# ALGEBRA
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x = T.dmatrix('x')
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y = T.dmatrix('y')
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z = x + y
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f = function([x, y], z)
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# print(f(2, 3))
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# print(numpy.allclose(f(16.3, 12.1), 28.4))
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print(f([[1, 2], [3, 4]], [[10, 20], [30, 40]]))
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# exercise
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import theano
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a = T.vector() # declare variable
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b = T.vector() # declare variable
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out = a ** 2 + b ** 2 + 2 * a * b # build symbolic expression
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f = function([a, b], out) # compile function
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print(f([1, 2], [4, 5]))
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###################################################
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# OTHER EXAMPLES
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# logistic function
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x = T.dmatrix('x')
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logistic_eq = 1 / (1 + T.exp(-x))
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logistic = function([x], logistic_eq)
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print(logistic([[0, 1], [-1, -2]]))
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# multiple things calculation
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a, b = T.dmatrices('a', 'b')
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diff = a - b
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abs_diff = abs(diff)
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diff_squared = diff**2
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f = function([a, b], [diff, abs_diff, diff_squared])
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print(f([[1, 1], [1, 1]], [[0, 1], [2, 3]]))
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# default value
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c = T.matrix('c')
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c = a + b
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f = function([a, theano.In(b, value=[[1, 1], [1, 1]])], c)
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print(f([[1, 1], [1, 1]]))
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# accumulator
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state = theano.shared([[0, 0], [0, 0]])
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print("accumulator")
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print(state.get_value())
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state = theano.shared(np.matrix('0 0; 0 0', dtype=np.int32))
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print(type(np.matrix('0 0; 0 0', dtype=np.int64)))
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print(type(np.matrix('0 1; 2 3', dtype=np.int64)))
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inc = T.imatrix('inc')
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expression = state+inc
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print(type(expression))
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accumulator = function([inc], state, updates=[(state, state+inc)])
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accumulator(np.matrix('1 2; 3 4', dtype=np.int32))
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print(state.get_value())
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accumulator(np.matrix('1 1; 1 1', dtype=np.int32))
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print(state.get_value())
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# function copy
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print("function copy")
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new_state = theano.shared(np.matrix('0 0; 0 0', dtype=np.int32))
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new_accumulator = accumulator.copy(swap={state: new_state})
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new_accumulator(np.matrix('1 2; 3 4', dtype=np.int32))
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print(new_state.get_value())
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print(state.get_value())
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# random numbers
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# POSSIBLE THAT THIS DOES NOT WORK ON GPU
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print("random numbers")
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srng = T.shared_randomstreams.RandomStreams(seed=234)
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rv_u = srng.uniform((2, 2))
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rv_n = srng.normal((2, 2))
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f = function([], rv_u)
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g = function([], rv_n, no_default_updates=True) # Not updating rv_n.rng
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nearly_zeros = function([], rv_u + rv_u - 2 * rv_u)
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print(f())
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print(f())
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print(g())
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print(g())
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print("sharing streams between functions")
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state_after_v0 = rv_u.rng.get_value().get_state()
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# nearly_zeros() # this affects rv_u's generator
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v1 = f()
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rng = rv_u.rng.get_value(borrow=True)
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rng.set_state(state_after_v0)
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rv_u.rng.set_value(rng, borrow=True)
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v2 = f() # v2 != v1
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v3 = f() # v3 == v1
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print(v1)
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print(v2)
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print(v3)
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# if: (if(smth) else)
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# switch: (if(smth) elif(smth))
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from theano import tensor as T
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from theano.ifelse import ifelse
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import theano, time, numpy
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a,b = T.scalars('a', 'b')
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x,y = T.matrices('x', 'y')
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z_switch = T.switch(T.lt(a, b), T.mean(x), T.mean(y))
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z_lazy = ifelse(T.lt(a, b), T.mean(x), T.mean(y))
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f_switch = theano.function([a, b, x, y], z_switch,
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mode=theano.Mode(linker='vm'))
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f_lazyifelse = theano.function([a, b, x, y], z_lazy,
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mode=theano.Mode(linker='vm'))
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val1 = 0.
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val2 = 1.
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big_mat1 = numpy.ones((10000, 1000))
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big_mat2 = numpy.ones((10000, 1000))
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n_times = 10
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tic = time.clock()
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for i in range(n_times):
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f_switch(val1, val2, big_mat1, big_mat2)
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print('time spent evaluating both values %f sec' % (time.clock() - tic))
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tic = time.clock()
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for i in range(n_times):
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f_lazyifelse(val1, val2, big_mat1, big_mat2)
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print('time spent evaluating one value %f sec' % (time.clock() - tic))
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@ -1,94 +0,0 @@
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import numpy as np
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import theano
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import theano.tensor as T
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# normal gradient
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x = T.dscalar('x')
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z = T.dscalar('z')
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y = x ** 3 + z ** 2
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gy = T.grad(y, [x, z])
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f = theano.function([x, z], gy)
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# print(theano.pp(f.maker.fgraph.outputs[0]))
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# print(theano.pp(f.maker.fgraph.outputs[1]))
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print(f(4, 8))
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# logistic gradient
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x = T.dmatrix('x')
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l = T.sum(1 / (1 + T.exp(-x)))
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gl = T.grad(l, x)
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f_lg = theano.function([x], gl)
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print(f_lg([[0, 1], [-1, -2]]))
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# np.matrix([[1, 2], [3, 4]])
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# jacobian matrix
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print('jacobian matrix1')
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x = T.dvector('x')
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y = x ** 2
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J, updates = theano.scan(lambda i, y, x : T.grad(y[i], x), sequences=T.arange(y.shape[0]), non_sequences=[y, x])
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f = theano.function([x], J, updates=updates)
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print(f([1, 2, 3, 4, 5]))
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# already implemented jacobian matrix
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# W, V = T.dmatrices('W', 'V')
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J = theano.gradient.jacobian(y, x)
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f2 = theano.function([x], J)
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print(f2([1, 2, 3, 4, 5]))
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# jacobian matrix with matrix :)
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W, V = T.dmatrices('W', 'V')
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x = T.dvector('x')
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y = T.dot(x, W)
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J = theano.gradient.jacobian(y, W)
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f2 = theano.function([W, x], J)
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print(f2(np.array([[1, 1], [1, 1]]), np.array([0, 1])))
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JV2 = T.dot(J, V)
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f2 = theano.function([W, V, x], JV2)
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print(f2(np.array([[1, 1], [1, 1]]), np.array([[2, 2], [2, 2]]), np.array([0, 1])))
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print('jacobian matrix2')
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x = T.dvector('x')
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z = T.dvector('z')
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y = x ** 2 + z ** 2
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J, updates = theano.scan(lambda i, y, x, z: T.grad(y[i], [x, z]), sequences=T.arange(y.shape[0]), non_sequences=[y,x,z])
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f = theano.function([x, z], J, updates=updates)
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test = T.arange(y.shape[0])
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t_f = theano.function([x, z], test)
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print(f([4, 4], [1, 1]))
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print(t_f([4, 4], [1, 1]))
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|
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# hessian matrix
|
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x = T.dvector('x')
|
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y = x ** 3
|
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cost = y.sum()
|
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gy = T.grad(cost, x)
|
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H, updates = theano.scan(lambda i, gy, x : T.grad(gy[i], x), sequences=T.arange(gy.shape[0]), non_sequences=[gy, x])
|
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f = theano.function([x], H, updates=updates)
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print(f([4, 4]))
|
||||
|
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# jacobian times vector
|
||||
|
||||
# R-operator
|
||||
W = T.dmatrix('W')
|
||||
V = T.dmatrix('V')
|
||||
x = T.dvector('x')
|
||||
y = T.dot(x, W)
|
||||
JV = T.Rop(y, W, V)
|
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f = theano.function([W, V, x], JV)
|
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print(f([[1, 1], [1, 1]], [[2, 2], [2, 2]], [0,1]))
|
||||
|
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# L-operator
|
||||
W = T.dmatrix('W')
|
||||
v = T.dvector('v')
|
||||
x = T.dvector('x')
|
||||
y = T.dot(x, W)
|
||||
VJ = T.Lop(y, W, v)
|
||||
f = theano.function([v,x], VJ)
|
||||
print(f([2, 2], [0, 1]))
|
||||
@ -1,100 +0,0 @@
|
||||
import theano
|
||||
import theano.tensor as T
|
||||
|
||||
k = T.iscalar("k")
|
||||
A = T.vector("A")
|
||||
|
||||
# Symbolic description of the result
|
||||
result, updates = theano.scan(fn=lambda prior_result, A: prior_result * A,
|
||||
outputs_info=T.ones_like(A),
|
||||
non_sequences=A,
|
||||
n_steps=k)
|
||||
|
||||
# We only care about A**k, but scan has provided us with A**1 through A**k.
|
||||
# Discard the values that we don't care about. Scan is smart enough to
|
||||
# notice this and not waste memory saving them.
|
||||
final_result = result[-1]
|
||||
|
||||
# compiled function that returns A**k
|
||||
power = theano.function(inputs=[A,k], outputs=final_result, updates=updates)
|
||||
|
||||
print(power(range(10),2))
|
||||
print(power(range(10),4))
|
||||
|
||||
print('P2:')
|
||||
import numpy
|
||||
|
||||
coefficients = theano.tensor.vector("coefficients")
|
||||
x = T.scalar("x")
|
||||
|
||||
max_coefficients_supported = 10000
|
||||
|
||||
# Generate the components of the polynomial
|
||||
components, updates = theano.scan(fn=lambda coefficient, power, prior_result, free_variable: prior_result + (coefficient * (free_variable ** power)),
|
||||
outputs_info=T.zeros(1),
|
||||
sequences=[coefficients, theano.tensor.arange(max_coefficients_supported)],
|
||||
non_sequences=x)
|
||||
# Sum them up
|
||||
polynomial = components.sum()
|
||||
|
||||
pol = components[-1]
|
||||
|
||||
# Compile a function
|
||||
calculate_polynomial = theano.function(inputs=[coefficients, x], outputs=components)
|
||||
|
||||
# Test
|
||||
test_coefficients = numpy.asarray([1, 0, 2], dtype=numpy.float32)
|
||||
test_value = 3
|
||||
print(calculate_polynomial(test_coefficients, test_value))
|
||||
print(1.0 * (3 ** 0) + 0.0 * (3 ** 1) + 2.0 * (3 ** 2))
|
||||
|
||||
print('P3:')
|
||||
import numpy as np
|
||||
import theano
|
||||
import theano.tensor as T
|
||||
|
||||
up_to = T.iscalar("up_to")
|
||||
|
||||
# define a named function, rather than using lambda
|
||||
def accumulate_by_adding(arange_val, prior_result):
|
||||
return prior_result + arange_val
|
||||
seq = T.arange(up_to)
|
||||
|
||||
# An unauthorized implicit downcast from the dtype of 'seq', to that of
|
||||
# 'T.as_tensor_variable(0)' which is of dtype 'int8' by default would occur
|
||||
# if this instruction were to be used instead of the next one:
|
||||
# outputs_info = T.as_tensor_variable(0)
|
||||
|
||||
outputs_info = T.as_tensor_variable(np.asarray(0, seq.dtype))
|
||||
scan_result, scan_updates = theano.scan(fn=accumulate_by_adding,
|
||||
outputs_info=outputs_info,
|
||||
sequences=seq)
|
||||
triangular_sequence = theano.function(inputs=[up_to], outputs=scan_result)
|
||||
|
||||
# test
|
||||
some_num = 15
|
||||
print(triangular_sequence(some_num))
|
||||
print([n * (n + 1) // 2 for n in range(some_num)])
|
||||
|
||||
print('P4:')
|
||||
location = T.imatrix("location")
|
||||
values = T.vector("values")
|
||||
output_model = T.matrix("output_model")
|
||||
|
||||
def set_value_at_position(a_location, a_value, output_model):
|
||||
zeros = T.zeros_like(output_model)
|
||||
zeros_subtensor = zeros[a_location[0], a_location[1]]
|
||||
return T.set_subtensor(zeros_subtensor, a_value)
|
||||
|
||||
result, updates = theano.scan(fn=set_value_at_position,
|
||||
outputs_info=None,
|
||||
sequences=[location, values],
|
||||
non_sequences=output_model)
|
||||
|
||||
assign_values_at_positions = theano.function(inputs=[location, values, output_model], outputs=result)
|
||||
|
||||
# test
|
||||
test_locations = numpy.asarray([[1, 1], [2, 3]], dtype=numpy.int32)
|
||||
test_values = numpy.asarray([42, 50], dtype=numpy.float32)
|
||||
test_output_model = numpy.zeros((5, 5), dtype=numpy.float32)
|
||||
print(assign_values_at_positions(test_locations, test_values, test_output_model))
|
||||
Loading…
Reference in new issue