Word2Vec transforms a word into a code for further natural language processing or machine learning process.
ft_word2vec(x, input_col, output_col, vector_size = 100L, min_count = 5L,
max_sentence_length = 1000L, num_partitions = 1L, step_size = 0.025,
max_iter = 1L, seed = NULL, dataset = NULL,
uid = random_string("word2vec_"), ...)ml_find_synonyms(model, word, num)
A spark_connection, ml_pipeline, or a tbl_spark.
The name of the input column.
The name of the output column.
The dimension of the code that you want to transform from words. Default: 100
The minimum number of times a token must appear to be included in the word2vec model's vocabulary. Default: 5
(Spark 2.0.0+) Sets the maximum length (in words) of each sentence
in the input data. Any sentence longer than this threshold will be divided into
chunks of up to max_sentence_length size. Default: 1000
Number of partitions for sentences of words. Default: 1
Param for Step size to be used for each iteration of optimization (> 0).
The maximum number of iterations to use.
A random seed. Set this value if you need your results to be reproducible across repeated calls.
(Optional) A tbl_spark. If provided, eagerly fit the (estimator)
feature "transformer" against dataset. See details.
A character string used to uniquely identify the feature transformer.
Optional arguments; currently unused.
A fitted Word2Vec model, returned by ft_word2vec().
A word, as a length-one character vector.
Number of words closest in similarity to the given word to find.
The object returned depends on the class of x.
spark_connection: When x is a spark_connection, the function returns a ml_transformer,
a ml_estimator, or one of their subclasses. The object contains a pointer to
a Spark Transformer or Estimator object and can be used to compose
Pipeline objects.
ml_pipeline: When x is a ml_pipeline, the function returns a ml_pipeline with
the transformer or estimator appended to the pipeline.
tbl_spark: When x is a tbl_spark, a transformer is constructed then
immediately applied to the input tbl_spark, returning a tbl_spark
ml_find_synonyms() returns a DataFrame of synonyms and cosine similarities
When dataset is provided for an estimator transformer, the function
internally calls ml_fit() against dataset. Hence, the methods for
spark_connection and ml_pipeline will then return a ml_transformer
and a ml_pipeline with a ml_transformer appended, respectively. When
x is a tbl_spark, the estimator will be fit against dataset before
transforming x.
When dataset is not specified, the constructor returns a ml_estimator, and,
in the case where x is a tbl_spark, the estimator fits against x then
to obtain a transformer, which is then immediately used to transform x.
See http://spark.apache.org/docs/latest/ml-features.html for more information on the set of transformations available for DataFrame columns in Spark.
Other feature transformers: ft_binarizer,
ft_bucketizer,
ft_chisq_selector,
ft_count_vectorizer, ft_dct,
ft_elementwise_product,
ft_feature_hasher,
ft_hashing_tf, ft_idf,
ft_imputer,
ft_index_to_string,
ft_interaction, ft_lsh,
ft_max_abs_scaler,
ft_min_max_scaler, ft_ngram,
ft_normalizer,
ft_one_hot_encoder, ft_pca,
ft_polynomial_expansion,
ft_quantile_discretizer,
ft_r_formula,
ft_regex_tokenizer,
ft_sql_transformer,
ft_standard_scaler,
ft_stop_words_remover,
ft_string_indexer,
ft_tokenizer,
ft_vector_assembler,
ft_vector_indexer,
ft_vector_slicer