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How to use get_skips method in Slash

Best Python code snippet using slash

keras_model.py

Source:keras_model.py

...18        self.embedding_size = embedding_size19        self.window_size = window_size20        self.model = None21        self.embeddings = None22    def get_skips(self, docs):23        """24        Formats the data and generates negative samples.25        :param docs: list; a list of documents; each document is a list of sentences;26        a sentence is a list of tokens (strings)27        :return: tuple; contains the center and context words, and the corresponding labels28        """29        sampling_table = make_sampling_table(self.vocab_size)30        center_words, context_words, labels = [], [], []31        for doc in docs:32            tokens = [token for sent in doc for token in sent]33            pairs, labels_ = skipgrams(tokens,34                                        self.vocab_size,35                                        window_size=self.window_size,36                                        sampling_table=sampling_table)37            try:38                center, context = zip(*pairs)39            except ValueError:40                continue41            center_words += center42            context_words += context43            labels += labels_44        return center_words, context_words, labels45    def w2v_model(self, learning_rate):46        """47        Generates the neural architecture for the word2vec skip-gram model48        :return: keras.models.Model(); the word2vec model49        """50        # Add the input and embedding layers51        input_center = Input((1,))52        input_context = Input((1,))53        self.embeddings = Embedding(self.vocab_size, self.embedding_size, input_length=1, name="Embeddings")54        # Get the center and context embeddings55        center = self.embeddings(input_center)56        center = Reshape((self.embedding_size, 1))(center)57        context = self.embeddings(input_context)58        context = Reshape((self.embedding_size, 1))(context)59        # Calculate the linear activations60        # dot_product = Concatenate([center, context], mode="dot", dot_axes=1)61        dot_product = dot([center, context], axes=1, normalize=False)62        dot_product = Reshape((1,))(dot_product)63        # Sigmoid activations64        output = Dense(1, activation="sigmoid")(dot_product)65        # Define the model66        model = Model(input=[input_center, input_context], output=output)67        optimizer = RMSprop(lr=learning_rate, rho=0.9, epsilon=None, decay=0.0)68        model.compile(loss="binary_crossentropy", optimizer=optimizer)69        return model70    def train(self, docs, num_batches=2000, learning_rate=0.001, verbose=True):71        """72        Optimizes the model on the training data73        :param docs: list; a sequence of documents; each document is a list of sentences;74        a sentence is a list of tokens (strings)75        :param num_batches: int; the number of (center, context) pairs to use in training76        :param verbose: Boolean; if true, prints the loss druing training77        """78        # Get the data and the model79        center_words, context_words, labels = self.get_skips(docs)80        self.model = self.w2v_model(learning_rate)81        # Randomly sample pair/label82        loss = []83        for batch in range(num_batches):84            idx = np.random.randint(0, len(center_words)-1)85            center_word = np.array([center_words[idx]])86            context_word = np.array([context_words[idx]])87            label = np.array([labels[idx]])88            loss += [self.model.train_on_batch([center_word, context_word], label)]89            # Print the loss every 1000 batches90            if len(loss) >= 1000 and verbose:91                print(batch, sum(loss)/1000)92                loss = []93    def get_embedding_array(self):...

analogy.py

Source:analogy.py

...43    embeds = Format(args.format).load(args.embeddings, args.lossy, args.mmap)44    with open(args.input) as queries:45        for query in queries:46            query_a, query_b, query_c = query.strip().split()47            skips = get_skips(query_a, query_b, query_c, args.include)48            res = embeds.analogy(query_a,49                                 query_b,50                                 query_c,51                                 k=args.k,52                                 skip=skips)53            if res is None:54                print(55                    f"Could not compute for: {query_a} : {query_b}, {query_c} : ? ",56                    file=sys.stderr)57            else:58                print("\n".join(f"{ws.word} {ws.similarity}" for ws in res))59def get_skips(  # pylint: disable=missing-function-docstring60        query_a: str, query_b: str, query_c: str,61        includes: List[str]) -> Set[str]:62    if includes == []:63        return {query_c, query_b, query_a}64    skips = set()65    if 'a' not in includes:66        skips.add(query_a)67    if 'b' not in includes:68        skips.add(query_b)69    if 'c' not in includes:70        skips.add(query_b)71    return skips72if __name__ == '__main__':73    main()

aoc10.py

Source:aoc10.py

...36            difs[3] += 137            break38    return difs[1] * difs[3]3940def get_skips(arr):41    arr.append(0)42    arr.append(max(arr) + 3)43    arr.sort()44    result = []45    group_len = 046    for i in range(1, len(arr) - 1):47        if arr[i] - arr[i - 1] == 3 or arr[i + 1] - arr[i] == 3:48            if group_len > 0:49                if group_len == 1:50                    result.append(1)51                elif group_len == 2:52                    result.append(3)53                elif group_len == 3:54                    result.append(6)55                group_len = 056        else:57            group_len += 158    return result5960def part2(adapters):61    skips = get_skips(adapters)62    result = 163    for choose in range(1, len(skips) + 1):64        choices = list(itertools.combinations(skips, choose))65        possibilities = list(map(math.prod, choices))66        result += sum(possibilities)67    return result6869def main():70    data = get_data('aoc10.txt')7172    # Part 173    print(f'PART 1--Answer: {part1(data)}')7475    # Part 2
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