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Update sentence-transformers.R #21

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21 changes: 14 additions & 7 deletions R/sentence-transformers.R
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Expand Up @@ -21,15 +21,22 @@ hf_load_sentence_model <- function(model_id) {
##' examples
##' dontrun{
##' # Compute sentence embeddings
##' sentences <- c("Baby turtles are so cute!", "He walks as slowly as a turtle.")
##' sentences_one <- c("Baby turtles are so cute!", "He walks as slowly as a turtle.")
##' sentences_two <- c("The lake is cold today.", "I enjoy swimming in the lake.")
##' sentences <- c(sentences, sentences_two)
##' sentences <- c(sentences_one, sentences_two)
##' model <- hf_load_sentence_model('paraphrase-MiniLM-L6-v2')
##' embeddings <- model$encode(sentences)
##' embeddings %>% dist() %>% as.matrix() %>% as.data.frame() %>% setNames(sentences)
##' embddings <- embeddings %>% dplyr::mutate(`sentence 1` = sentences) %>% tidyr::pivot_longer(cols = -`sentence 1`, names_to = 'sentence 2', values_to = 'distance')
##' embeddings <- embeddings %>% filter(distance > 0)
##' distances <- embeddings %>% dist() %>% as.matrix() %>% as.data.frame() %>% setNames(sentences)
##' distances <- distances %>%
##' dplyr::mutate(`sentence 1` = sentences) %>%
##' tidyr::pivot_longer(cols = -`sentence 1`, names_to = 'sentence 2', values_to = 'distance')
##' distances <- distances %>% dplyr::filter(distance > 0)
##' distances
##' # Cluster sentences
##' embeddings <- embeddings %>% t() %>% prcomp() %>% purrr::pluck('rotation') %>% as.data.frame() %>% dplyr::mutate(sentence = sentences)
##' plot <- embedidings %>% ggplot2::ggplot(aes(PC1, PC2)) + ggplot2::geom_label(ggplot2::aes(PC1, PC2, label = sentence, vjust="inward", hjust="inward")) + ggplot2::theme_minimal()
##' embeddings_pca <- embeddings %>% t() %>% prcomp() %>% purrr::pluck('rotation') %>% as.data.frame() %>% dplyr::mutate(sentence = sentences)
##' embeddings_pca %>%
##' ggplot2::ggplot(ggplot2::aes(PC1, PC2)) +
##' ggplot2::geom_point() +
##' ggplot2::geom_text(ggplot2::aes(label = sentence), vjust="inward", hjust="inward") +
##' ggplot2::theme_minimal()
##' }