jubatus::core::recommender::recommender_factory Class Reference

#include <recommender_factory.hpp>

Collaboration diagram for jubatus::core::recommender::recommender_factory:

Static Public Member Functions
static jubatus::util::lang::shared_ptr< recommender_base >	create_recommender (const std::string &name, const common::jsonconfig::config &param, const std::string &id)

Detailed Description

Definition at line 35 of file recommender_factory.hpp.

Member Function Documentation

shared_ptr< recommender_base > jubatus::core::recommender::recommender_factory::create_recommender ( const std::string &  name, const common::jsonconfig::config &  param, const std::string &  id  )

static

Definition at line 56 of file recommender_factory.cpp.

References jubatus::core::nearest_neighbor::create_nearest_neighbor(), jubatus::core::unlearner::create_unlearner(), and JUBATUS_EXCEPTION.

Referenced by jubatus::core::anomaly::anomaly_factory::create_anomaly().

                      {
  if (name == "inverted_index") {
    // inverted_index doesn't have parameter
    return shared_ptr<recommender_base>(new inverted_index);
  } else if (name == "minhash") {
    return shared_ptr<recommender_base>(
        new minhash(config_cast_check<minhash::config>(param)));
  } else if (name == "lsh") {
    return shared_ptr<recommender_base>(
        new lsh(config_cast_check<lsh::config>(param)));
  } else if (name == "euclid_lsh") {
    return shared_ptr<recommender_base>(
        new euclid_lsh(config_cast_check<euclid_lsh::config>(param)));
  } else if (name == "nearest_neighbor_recommender") {
    nearest_neighbor_recommender_config conf =
        config_cast_check<nearest_neighbor_recommender_config>(param);
    shared_ptr<storage::column_table> table(new storage::column_table);
    shared_ptr<nearest_neighbor::nearest_neighbor_base>
        nearest_neighbor_engine(nearest_neighbor::create_nearest_neighbor(
            conf.method, conf.parameter, table, id));
    if (conf.unlearner) {
      if (!conf.unlearner_parameter) {
        throw JUBATUS_EXCEPTION(
            common::config_exception() << common::exception::error_message(
                "unlearner is set but unlearner_parameter is not found"));
      }
      shared_ptr<unlearner::unlearner_base> unl(unlearner::create_unlearner(
          *conf.unlearner, common::jsonconfig::config(
              *conf.unlearner_parameter)));
      return shared_ptr<recommender_base>(
          new nearest_neighbor_recommender(nearest_neighbor_engine, unl));
    }
    return shared_ptr<recommender_base>(
        new nearest_neighbor_recommender(nearest_neighbor_engine));
  } else {
    throw JUBATUS_EXCEPTION(common::unsupported_method(name));
  }
}

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The documentation for this class was generated from the following files:

• jubatus/core/recommender/recommender_factory.hpp
• jubatus/core/recommender/recommender_factory.cpp