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Add a threshold filtering the Languages allowed to be detected at search time

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This commit is contained in:
ManyTheFish 2023-03-07 19:38:01 +01:00
parent da48506f15
commit 37d4551e8e
1 changed files with 12 additions and 1 deletions
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13
milli/src/index.rs
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@ -1211,11 +1211,22 @@ impl Index {
let soft_deleted_documents = self.soft_deleted_documents_ids(rtxn)?;
let mut script_language: HashMap<Script, Vec<Language>> = HashMap::new();
let mut script_language_doc_count: Vec<(Script, Language, u64)> = Vec::new();
let mut total = 0;
for sl in self.script_language_docids.iter(rtxn)? {
let ((script, language), docids) = sl?;
// keep only Languages that contains at least 1 document.
if !soft_deleted_documents.is_superset(&docids) {
let remaining_documents_count = (docids - &soft_deleted_documents).len();
total += remaining_documents_count;
if remaining_documents_count > 0 {
script_language_doc_count.push((script, language, remaining_documents_count));
}
}
let threshold = total / 20; // 5% (arbitrar)
for (script, language, count) in script_language_doc_count {
if count > threshold {
if let Some(languages) = script_language.get_mut(&script) {
(*languages).push(language);
} else {