void euclid_lsh::neighbor_row(
const common::sfv_t& query,
vector<pair<string, float> >& ids,
uint64_t ret_num) const {
neighbor_row_from_hash(
cosine_lsh(query, hash_num_),
l2norm(query),
ids,
ret_num);
}
void euclid_lsh::neighbor_row(
const common::sfv_t& query,
vector<pair<string, float> >& ids,
uint64_t ret_num) const {
util::concurrent::scoped_rlock lk(get_const_table()->get_mutex());
/* table lock acquired; all subsequent table operations must be nolock */
neighbor_row_from_hash(
cosine_lsh(query, hash_num_, threads_, cache_),
l2norm(query),
ids,
ret_num);
}
storage::bit_vector lsh::hash(const common::sfv_t& sfv) const {
return cosine_lsh(sfv, bitnum());
}
void euclid_lsh::set_row(const string& id, const common::sfv_t& sfv) {
// TODO(beam2d): support nested algorithm, e.g. when used by lof and then we
// cannot suppose that the first two columns are assigned to euclid_lsh.
get_table()->add(id, owner(my_id_),
cosine_lsh(sfv, hash_num_, threads_, cache_), l2norm(sfv));
}
void euclid_lsh::set_row(const string& id, const common::sfv_t& sfv) {
get_table()->add(id, owner(my_id_), cosine_lsh(sfv, hash_num_), l2norm(sfv));
}
storage::bit_vector lsh::hash(const common::sfv_t& sfv) const {
return cosine_lsh(sfv, bitnum(), threads_, cache_);
}