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123 lines
5.8 KiB
123 lines
5.8 KiB
#' Updater function for elasticizer: Conduct actor searches
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#'
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#' Updater function for elasticizer: Conduct actor searches
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#' @param out Does not need to be defined explicitly! (is already parsed in the elasticizer function)
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#' @param localhost Defaults to false. When true, connect to a local Elasticsearch instance on the default port (9200)
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#' @param ids List of actor ids
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#' @param prefix Regex containing prefixes that should be excluded from hits
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#' @param postfix Regex containing postfixes that should be excluded from hits
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#' @param identifier String used to mark highlights. Should be a lowercase string
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#' @param udmodel The udpipe model used for parsing every hit
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#' @param ver Short string (preferably a single word/sequence) indicating the version of the updated document (i.e. for a udpipe update this string might be 'udV2')
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#' @param es_super Password for write access to ElasticSearch
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#' @return As this is a nested function used within elasticizer, there is no return output
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#' @export
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#' @examples
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#' actorizer(out, localhost = F, ids, type, prefix, postfix, identifier, udmodel, es_super)
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actorizer <- function(out, localhost = F, ids, type, prefix, postfix, identifier, udmodel, es_super, ver) {
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exceptionizer <- function(id, ud, doc, markers, regex_identifier, prefix, postfix) {
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min <- min(ud$start[ud$sentence_id == id])
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max <- max(ud$end[ud$sentence_id == id])
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split <- markers[markers %in% seq(min, max, 1)]
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max <- max+(length(split)*nchar(identifier))
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sentence <- str_sub(doc$highlight, min, max)
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if (!str_detect(sentence, paste0(regex_identifier,postfix)) && !str_detect(sentence, paste0(prefix,regex_identifier))) {
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return(id)
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} else {
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return(NULL)
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}
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}
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sentencizer <- function(row, out, ids, prefix, postfix, identifier, type) {
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print(row)
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### If no pre or postfixes, match *not nothing* i.e. anything
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if (is.na(prefix) || prefix == '') {
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prefix = '$^'
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}
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if (is.na(postfix) || postfix == '') {
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postfix = '$^'
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}
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### Also needs fix for empty strings (non-NA)
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err <- F
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doc <- out[row,]
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ud <- doc$`_source.ud`[[1]] %>%
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select(-one_of('exists')) %>% # Removing ud.exists variable
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unnest() %>%
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mutate(doc_id = doc$`_id`)
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# ud <- as.data.frame(udpipe(udmodel, x = doc$merged, parser = "none", doc_id = doc$`_id`))
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markers <- doc$markers[[1]][,'start']
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if (length(setdiff(markers,ud$start)) > 0) {
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err <- T
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ud <- ud %>%
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group_by(doc_id) %>%
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summarise(
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sentence_id = list(list(as.integer(0))),
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sentence_start = list(list(0)),
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sentence_end = list(list(0))
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)
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occurences <- 0
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prominence <- 0
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rel_first <- 0
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return(data.frame(ud,actor_start = I(list(list(markers))), occ = occurences,prom = prominence,rel_first = rel_first, ids = I(list(list(ids))), err = err))
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}
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ud$actor[ud$start %in% markers] <- T
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sentence_count <- length(unique(ud$sentence_id))
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actor_sentences <- unique(na.omit(ud$sentence_id[ud$actor == T]))
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if (type == "Party") {
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sentence_ids <- lapply(actor_sentences, exceptionizer, ud = ud, doc = doc, markers = markers, regex_identifier = regex_identifier, prefix = prefix, postfix = postfix)
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} else {
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sentence_ids <- actor_sentences
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}
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ud <- ud %>%
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filter(sentence_id %in% sentence_ids) %>%
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group_by(sentence_id) %>%
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summarise (
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sentence_start = as.integer(min(start)),
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sentence_end = as.integer(max(end)),
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doc_id = first(doc_id)
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) %>%
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group_by(doc_id) %>%
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summarise(
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sentence_id = list(list(as.integer(sentence_id))),
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sentence_start = list(list(sentence_start)),
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sentence_end = list(list(sentence_end))
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)
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occurences <- length(unique(ud$sentence_id[[1]][[1]])) # Number of sentences in which actor occurs
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prominence <- occurences/sentence_count # Relative prominence of actor in article (number of occurences/total # sentences)
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rel_first <- 1-(ud$sentence_id[[1]][[1]][1]/sentence_count) # Relative position of first occurence at sentence level
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return(data.frame(ud,actor_start = I(list(list(markers))), occ = occurences,prom = prominence,rel_first = rel_first, ids = I(list(list(ids))), err = err))
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# ## The exception below is only valid for the UK, where the original UDPipe output misses a dot at the end of the article, but the actor output does not
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# ## (UK output is older than actor output, should be updated)
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# if (length(ud_org$sentence_id) == length(ud$sentence_id)-1) {
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# ud <- ud[-length(ud$sentence_id),]
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# }
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# if (length(ud_org$sentence_id) == length(ud$sentence_id)) {
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# ud <- bind_cols(ud_org, sentence = ud$sentence, token = ud$token, doc_id = ud$doc_id, actor = ud$actor)
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# } else {
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# err = T
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# print(paste0('ud_org and ud_actor not the same length for id ', doc$`_id`))
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# print(length(ud_org$sentence_id))
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# print(length(ud$sentence_id))
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# }
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}
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out <- mamlr:::out_parser(out, field = 'highlight', clean = F)
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# out$highlight <- out$merged
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# out <- mamlr:::out_parser(out, field = '_source', clean = F)
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offsetter <- function(x) {
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return(x-((row(x)-1)*nchar(identifier)))
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}
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regex_identifier <- gsub("([.|()\\^{}+$*?]|\\[|\\])", "\\\\\\1", identifier)
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out$markers <- lapply(str_locate_all(out$merged,coll(identifier)), offsetter)
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ids <- fromJSON(ids)
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updates <- bind_rows(mclapply(seq(1,length(out[[1]]),1), sentencizer, out = out, ids = ids, postfix = postfix, prefix=prefix, identifier=identifier, type = type, mc.cores = detectCores()))
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bulk <- apply(updates, 1, bulk_writer, varname ='actorsDetail2', type = 'add', ver = ver)
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bulk <- c(bulk,apply(updates[c(1,9)], 1, bulk_writer, varname='actors2', type = 'add', ver = ver))
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return(elastic_update(bulk, es_super = es_super, localhost = localhost))
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}
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