#' Load a pretrained Spark NLP XlmRoBertaSentenceEmbeddings model
#'
#' Create a pretrained Spark NLP \code{XlmRoBertaSentenceEmbeddings} model.
#' See \url{https://nlp.johnsnowlabs.com/docs/en/annotators#xlmrobertasentenceembeddings}
#'
#' Sentence-level embeddings using XLM-RoBERTa. The XLM-RoBERTa model was proposed in
#' Unsupervised Cross-lingual Representation Learning at Scale by Alexis Conneau,
#' Kartikay Khandelwal, Naman Goyal, Vishrav Chaudhary, Guillaume Wenzek, Francisco Guzmán,
#' Edouard Grave, Myle Ott, Luke Zettlemoyer and Veselin Stoyanov. It is based on
#' Facebook's RoBERTa model released in 2019. It is a large multi-lingual language model,
#' trained on 2.5TB of filtered CommonCrawl data.
#'
#' @template roxlate-pretrained-params
#' @template roxlate-inputs-output-params
#' @param batch_size batch size
#' @param case_sensitive whether to lowercase tokens or not
#' @param dimension defines the output layer of BERT when calculating embeddings
#' @param max_sentence_length max sentence length to process
#'
#' @export
nlp_xlm_roberta_sentence_embeddings_pretrained <- function(sc, input_cols, output_col, case_sensitive = NULL,
batch_size = NULL, dimension = NULL,
max_sentence_length = NULL,
name = NULL, lang = NULL, remote_loc = NULL) {
args <- list(
input_cols = input_cols,
output_col = output_col,
case_sensitive = case_sensitive,
batch_size = batch_size,
dimension = dimension,
max_sentence_length = max_sentence_length
) %>%
validator_nlp_xlm_roberta_sentence_embeddings()
model_class <- "com.johnsnowlabs.nlp.embeddings.XlmRoBertaSentenceEmbeddings"
model <- pretrained_model(sc, model_class, name, lang, remote_loc)
spark_jobj(model) %>%
sparklyr::jobj_set_param("setInputCols", args[["input_cols"]]) %>%
sparklyr::jobj_set_param("setOutputCol", args[["output_col"]]) %>%
sparklyr::jobj_set_param("setCaseSensitive", args[["case_sensitive"]]) %>%
sparklyr::jobj_set_param("setBatchSize", args[["batch_size"]]) %>%
sparklyr::jobj_set_param("setDimension", args[["dimension"]]) %>%
sparklyr::jobj_set_param("setMaxSentenceLength", args[["max_sentence_length"]])
new_nlp_xlm_roberta_sentence_embeddings(model)
}
#' @import forge
validator_nlp_xlm_roberta_sentence_embeddings <- function(args) {
args[["input_cols"]] <- cast_string_list(args[["input_cols"]])
args[["output_col"]] <- cast_string(args[["output_col"]])
args[["batch_size"]] <- cast_nullable_integer(args[["batch_size"]])
args[["case_sensitive"]] <- cast_nullable_logical(args[["case_sensitive"]])
args[["dimension"]] <- cast_nullable_integer(args[["dimension"]])
args[["max_sentence_length"]] <- cast_nullable_integer(args[["max_sentence_length"]])
args
}
new_nlp_xlm_roberta_sentence_embeddings <- function(jobj) {
sparklyr::new_ml_transformer(jobj, class = "nlp_xlm_roberta_sentence_embeddings")
}
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