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Use hashmap instead of Btree in wpp extractor

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This commit is contained in:
ManyTheFish 2024-09-16 14:40:40 +02:00
parent 7ba49b849e
commit f13e076b8a
1 changed files with 48 additions and 40 deletions
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88
milli/src/update/new/extract/searchable/extract_word_pair_proximity_docids.rs
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@ -1,4 +1,4 @@
use std::collections::{BTreeMap, VecDeque};
use std::collections::{HashMap, VecDeque};
use heed::RoTxn;
use itertools::merge_join_by;
@ -35,10 +35,8 @@ impl SearchableExtractor for WordPairProximityDocidsExtractor {
cached_sorter: &mut CboCachedSorter<MergeDeladdCboRoaringBitmaps>,
document_change: DocumentChange,
) -> Result<()> {
/// TODO: mutualize those buffers
let mut key_buffer = Vec::new();
let mut add_word_pair_proximity = BTreeMap::new();
let mut del_word_pair_proximity = BTreeMap::new();
let mut word_pair_proximity = HashMap::new();
let mut word_positions: VecDeque<(String, u16)> =
VecDeque::with_capacity(MAX_DISTANCE as usize);
@ -51,7 +49,14 @@ impl SearchableExtractor for WordPairProximityDocidsExtractor {
document_tokenizer,
fields_ids_map,
&mut word_positions,
&mut del_word_pair_proximity,
&mut |(w1, w2), prox| {
word_pair_proximity
.entry((w1, w2))
.and_modify(|(del_p, _add_p)| {
*del_p = std::cmp::min(*del_p, prox);
})
.or_insert((prox, 0));
},
)?;
}
DocumentChange::Update(inner) => {
@ -61,7 +66,14 @@ impl SearchableExtractor for WordPairProximityDocidsExtractor {
document_tokenizer,
fields_ids_map,
&mut word_positions,
&mut del_word_pair_proximity,
&mut |(w1, w2), prox| {
word_pair_proximity
.entry((w1, w2))
.and_modify(|(del_p, _add_p)| {
*del_p = std::cmp::min(*del_p, prox);
})
.or_insert((prox, 0));
},
)?;
let document = inner.new();
process_document_tokens(
@ -69,7 +81,14 @@ impl SearchableExtractor for WordPairProximityDocidsExtractor {
document_tokenizer,
fields_ids_map,
&mut word_positions,
&mut add_word_pair_proximity,
&mut |(w1, w2), prox| {
word_pair_proximity
.entry((w1, w2))
.and_modify(|(_del_p, add_p)| {
*add_p = std::cmp::min(*add_p, prox);
})
.or_insert((0, prox));
},
)?;
}
DocumentChange::Insertion(inner) => {
@ -79,35 +98,23 @@ impl SearchableExtractor for WordPairProximityDocidsExtractor {
document_tokenizer,
fields_ids_map,
&mut word_positions,
&mut add_word_pair_proximity,
&mut |(w1, w2), prox| {
word_pair_proximity
.entry((w1, w2))
.and_modify(|(_del_p, add_p)| {
*add_p = std::cmp::min(*add_p, prox);
})
.or_insert((0, prox));
},
)?;
}
}
use itertools::EitherOrBoth::*;
for eob in
merge_join_by(del_word_pair_proximity.iter(), add_word_pair_proximity.iter(), |d, a| {
d.cmp(a)
})
{
match eob {
Left(((w1, w2), prox)) => {
let key = build_key(*prox, w1, w2, &mut key_buffer);
cached_sorter.insert_del_u32(key, docid)?;
}
Right(((w1, w2), prox)) => {
let key = build_key(*prox, w1, w2, &mut key_buffer);
cached_sorter.insert_add_u32(key, docid)?;
}
Both(((w1, w2), del_prox), (_, add_prox)) => {
if del_prox != add_prox {
let key = build_key(*del_prox, w1, w2, &mut key_buffer);
cached_sorter.insert_del_u32(key, docid)?;
let key = build_key(*add_prox, w1, w2, &mut key_buffer);
cached_sorter.insert_add_u32(key, docid)?;
}
}
}
for ((w1, w2), (del_p, add_p)) in word_pair_proximity.iter() {
let key = build_key(*del_p, w1, w2, &mut key_buffer);
cached_sorter.insert_del_u32(key, docid)?;
let key = build_key(*add_p, w1, w2, &mut key_buffer);
cached_sorter.insert_add_u32(key, docid)?;
}
Ok(())
@ -125,18 +132,19 @@ fn build_key<'a>(prox: u8, w1: &str, w2: &str, key_buffer: &'a mut Vec<u8>) -> &
fn word_positions_into_word_pair_proximity(
word_positions: &mut VecDeque<(String, u16)>,
word_pair_proximity: &mut BTreeMap<(String, String), u8>,
word_pair_proximity: &mut dyn FnMut((String, String), u8),
) -> Result<()> {
let (head_word, head_position) = word_positions.pop_front().unwrap();
for (word, position) in word_positions.iter() {
let prox = index_proximity(head_position as u32, *position as u32) as u8;
if prox > 0 && prox < MAX_DISTANCE as u8 {
word_pair_proximity
.entry((head_word.clone(), word.clone()))
.and_modify(|p| {
*p = std::cmp::min(*p, prox);
})
.or_insert(prox);
word_pair_proximity((head_word.clone(), word.clone()), prox);
// word_pair_proximity
// .entry((head_word.clone(), word.clone()))
// .and_modify(|p| {
// *p = std::cmp::min(*p, prox);
// })
// .or_insert(prox);
}
}
Ok(())
@ -147,7 +155,7 @@ fn process_document_tokens(
document_tokenizer: &DocumentTokenizer,
fields_ids_map: &mut GlobalFieldsIdsMap,
word_positions: &mut VecDeque<(String, u16)>,
word_pair_proximity: &mut BTreeMap<(String, String), u8>,
word_pair_proximity: &mut dyn FnMut((String, String), u8),
) -> Result<()> {
let mut token_fn = |_fname: &str, _fid: FieldId, pos: u16, word: &str| {
// drain the proximity window until the head word is considered close to the word we are inserting.