Exemplos de neighbor_row_from_hash em C++ (Cpp)

Exemplo n.º 1

Arquivo: euclid_lsh.cpp Projeto: Ina299/jubatus

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);
}

Exemplo n.º 2

Arquivo: bit_vector_nearest_neighbor_base.cpp Projeto: gwtnb/jubatus_core

void bit_vector_nearest_neighbor_base::neighbor_row(
    const string& query_id,
    vector<pair<string, float> >& ids,
    uint64_t ret_num) const {
  const table::column_table& table = *get_const_table();
  const pair<bool, uint64_t> maybe_index = table.exact_match(query_id);
  if (!maybe_index.first) {
    ids.clear();
    return;
  }

  const_bit_vector_column& col = bit_vector_column();
  neighbor_row_from_hash(col[maybe_index.second], ids, ret_num);
}

Exemplo n.º 3

Arquivo: euclid_lsh.cpp Projeto: yukimori/jubatus_core

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);
}

Exemplo n.º 4

Arquivo: euclid_lsh.cpp Projeto: Ina299/jubatus

void euclid_lsh::neighbor_row(
    const std::string& query_id,
    vector<pair<string, float> >& ids,
    uint64_t ret_num) const {
  const pair<bool, uint64_t> maybe_index =
      get_const_table()->exact_match(query_id);
  if (!maybe_index.first) {
    ids.clear();
    return;
  }

  const bit_vector bv = lsh_column()[maybe_index.second];
  const float norm = norm_column()[maybe_index.second];
  neighbor_row_from_hash(bv, norm, ids, ret_num);
}

Exemplo n.º 5

Arquivo: euclid_lsh.cpp Projeto: yukimori/jubatus_core

void euclid_lsh::neighbor_row(
    const std::string& query_id,
    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 */

  const pair<bool, uint64_t> maybe_index =
      get_const_table()->exact_match_nolock(query_id);
  if (!maybe_index.first) {
    ids.clear();
    return;
  }

  const bit_vector bv = lsh_column()[maybe_index.second];
  const float norm = norm_column()[maybe_index.second];
  neighbor_row_from_hash(bv, norm, ids, ret_num);
}

Exemplo n.º 6

Arquivo: bit_vector_nearest_neighbor_base.cpp Projeto: gwtnb/jubatus_core

void bit_vector_nearest_neighbor_base::neighbor_row(
    const common::sfv_t& query,
    vector<pair<string, float> >& ids,
    uint64_t ret_num) const {
  neighbor_row_from_hash(hash(query), ids, ret_num);
}