Method optimizeNumberOfEdgesForANNG

python/src/ngtpy.cpp:549–574

  using NGT::GraphOptimizer::GraphOptimizer;

  int optimizeNumberOfEdgesForANNG(
    const std::string path,		// anng index path
    int numOfQueries,
    int numOfResults,
    int numOfThreads,
    float targetAccuracy,
    int targetNoOfObjects,
    int numOfSampleObjects,
    int maxNoOfEdges) {

    NGT::GraphOptimizer::ANNGEdgeOptimizationParameter p;

    p.noOfQueries	= numOfQueries > 0 ? numOfQueries : p.noOfQueries;
    p.noOfResults	= numOfResults > 0 ? numOfResults : p.noOfResults;
    p.noOfThreads	= numOfThreads >= 0 ? numOfThreads : p.noOfThreads;
    p.targetAccuracy	= targetAccuracy > 0.0 ? targetAccuracy : p.targetAccuracy;
    p.targetNoOfObjects	= targetNoOfObjects >= 0 ? targetNoOfObjects : p.targetNoOfObjects;
    p.noOfSampleObjects	= numOfSampleObjects > 0 ? numOfSampleObjects : p.noOfSampleObjects;
    p.maxNoOfEdges	= maxNoOfEdges > 0 ? maxNoOfEdges : p.maxNoOfEdges;

    auto edge = NGT::GraphOptimizer::optimizeNumberOfEdgesForANNG(path, p);
    if (!logDisabled) {
      std::cerr << "the optimized number of edges is" << edge.first << "(" << edge.second << ")" << std::endl;
    }
    return edge.first;
  }

};