Esempio n. 1
0
 public void Build(EPTable f, int num_trees)
 {
     this.DB = f.DB;
     if (num_trees <= 0) {
         num_trees = f.rows.Length;
     }
     this.InitForest (num_trees);
     for (int i = 0; i < num_trees; ++i) {
         this.forest[i] = new EPTree(f.rows[i]);
     }
 }
Esempio n. 2
0
 public void Build(EPTable pgi, int num_groups)
 {
     this.DB = pgi.DB;
     if (num_groups <= 0) {
         num_groups = pgi.rows.Length;
     }
     this.InitRows (num_groups);
     for (int i = 0; i < num_groups; ++i) {
         this.rows[i] = pgi.rows[i];
     }
 }
Esempio n. 3
0
        public static List<string> ExecuteKNRSEQ(IndexArgumentSetup setup, string nick, int numrefs, int k, double maxcand_ratio)
        {
            var idxname = String.Format ("{0}/Index.knrseq-{1}-{2}", nick, numrefs, k);
            MetricDB db = SpaceGenericIO.Load (setup.BINARY_DATABASE);
            Index idx;
            var suffix = "";

            var resnamelist = new List<string> ();
            if (!File.Exists (idxname)) {
                Console.WriteLine ("*** creating index {0}", idxname);
                var s = DateTime.Now.Ticks;
                var c = db.NumberDistances;
                var IDX = new KnrSeqSearch ();
                var refsDB = new SampleSpace("", db, numrefs);
                var refsIDX = new EPTable ();
                refsIDX.Build(refsDB, 4, (_db, _rand) => new EPListOptimizedA(_db, 4, _rand));
                if (k == 0) {
                    k = KnrEstimateParameters.EstimateKnrEnsuringSharedNeighborhoods (db, refsIDX, (int)Math.Abs (setup.QARG));
                    suffix = String.Format ("estimated-K={0}.", k);
                }
                IDX.Build (db, refsIDX, k, int.MaxValue);
                SaveConstructionTime (idxname, DateTime.Now.Ticks - s, db.NumberDistances - c);
                IndexGenericIO.Save (idxname, IDX);
                idx = IDX;
            } else {
                Console.WriteLine ("*** loading index {0}", idxname);
                idx = IndexGenericIO.Load (idxname);
                if (k == 0) {
                    var _idx = idx as KnrSeqSearch;
                    suffix = String.Format ("estimated-K={0}.", _idx.K);
                }
            }
            string resname;
            // PPIndex
            resname = GetResultName (nick, idxname, setup, String.Format(suffix + "maxcand={0}.PPI", maxcand_ratio));
            resnamelist.Add(resname);
            if (!File.Exists (resname)) {
                var knr = idx as KnrSeqSearch;
                knr.MAXCAND = (int)(idx.DB.Count * maxcand_ratio);
                PerformSearch (resname, knr, idxname, setup);
            }
            // KnrSeqSearchCosine
            resname = GetResultName (nick, idxname, setup, String.Format(suffix + "maxcand={0}.COS", maxcand_ratio));
            resnamelist.Add(resname);
            if (!File.Exists (resname)) {
                var knr = new KnrSeqSearchCosine(idx as KnrSeqSearch);
                knr.MAXCAND = (int)(idx.DB.Count * maxcand_ratio);
                PerformSearch (resname, knr, idxname, setup);
            }
            // KnrSeqSearchFootrule
            resname = GetResultName (nick, idxname, setup, String.Format(suffix + "maxcand={0}.FOOTRULE", maxcand_ratio));
            resnamelist.Add(resname);
            if (!File.Exists (resname)) {
                var knr = new KnrSeqSearchFootrule(idx as KnrSeqSearch);
                knr.MAXCAND = (int)(idx.DB.Count * maxcand_ratio);
                PerformSearch (resname, knr, idxname, setup);
            }
            // KnrSeqSearchJaccLCS
            resname = GetResultName (nick, idxname, setup, String.Format(suffix + "maxcand={0}.JACCLCS", maxcand_ratio));
            resnamelist.Add(resname);
            if (!File.Exists (resname)) {
                var knr = new KnrSeqSearchJaccLCS(idx as KnrSeqSearch);
                knr.MAXCAND = (int)(idx.DB.Count * maxcand_ratio);
                PerformSearch (resname, knr, idxname, setup);
            }
            // KnrSeqSearchLCSv3
            resname = GetResultName (nick, idxname, setup, String.Format(suffix + "maxcand={0}.LCSv3", maxcand_ratio));
            resnamelist.Add(resname);
            if (!File.Exists (resname)) {
                var knr = new KnrSeqSearchLCSv3(idx as KnrSeqSearch);
                knr.MAXCAND = (int)(idx.DB.Count * maxcand_ratio);
                PerformSearch (resname, knr, idxname, setup);
            }
            // NAPP
            foreach (var ksearch in setup.KNR_KSEARCH) {
                var knr = new NAPP(idx as KnrSeqSearch);
                knr.MAXCAND = (int)(idx.DB.Count * maxcand_ratio);
                resname = GetResultName (nick, idxname, setup, String.Format(suffix + "maxcand={0}.NAPP.ksearch={1}", maxcand_ratio, ksearch));
                resnamelist.Add(resname);
                if (!File.Exists (resname)) {
                    PerformSearch (resname, knr, idxname, setup);
                }
            }
            return resnamelist;
        }
Esempio n. 4
0
 public static string ExecuteEPTB(IndexArgumentSetup setup, string nick, int numgroups)
 {
     var idxname = String.Format ("{0}/Index.EPTB.{1}", nick, numgroups);
     return Execute (setup, nick, idxname, (db) => {
         EPTable eptable = new EPTable ();
         eptable.Build (db, numgroups, (_db, rand) => new EPListOptimizedB (db, numgroups, rand), setup.CORES);
         return eptable;
     });
 }
Esempio n. 5
0
File: Main.cs Progetto: sadit/natix
        public static void Main(string[] args)
        {
            // Uso: VPForest db_file queries_file db_name dim tau
            string db_file="DB.colors";
            //string db_file="/home/memo/Descargas/db/colors/DB-colors.save";
            string queries_file="colors.queries";
            double querie_arg=.07;
            string query_type="Range";
            string dbname="colors";
            int dim=112;
            double tau=.07;
            //IList<float[]> queries=new List<float[]>();

            if (args.Length!=0 )
            {
                db_file=args[0];
                queries_file=args[1];
                querie_arg = Convert.ToDouble(args[2]);
                query_type = args [3];
                dbname = args [4];
                dim = Convert.ToInt32 (args [5]);
                if (args.Length == 7)
                    tau = Convert.ToDouble (args [6]);

            }

            // Leer DB
            if (!File.Exists (db_file)) {
                MemMinkowskiVectorDB<float> _db = new MemMinkowskiVectorDB<float> ();
                _db.Build (dbname+".ascii.header");
                SpaceGenericIO.Save (db_file, _db);
            }
            MetricDB DB;
            DB=SpaceGenericIO.Load(db_file,true);
            Console.WriteLine("DB Loaded size:{0}",DB.Count);

            int[] J={1,2,4,8,16}; // groups
            int [] I={1}; // not used
            foreach (int i in I)
            {
                foreach (int j in J)
                {
                    int pivspergrp=0;

                    // Crear índice VP-forest
                    //Console.WriteLine("Building Forest m:{0}",i/10d);
                    string VPF_file = "VP-Forest-"+dbname+"-Tau-" + tau + ".idx";
                    VP_Forest VPF_Search;
                    if (!File.Exists (VPF_file)) {
                        Chronos chr_time = new Chronos ();
                        chr_time.Start ();
                        VPF_Search = new VP_Forest (DB, _tau: tau);
                        chr_time.End ();
                        File.AppendAllText("index-"+dbname+"-construction-speed-VP-Forest.csv", string.Format("{0} {1}{2}",tau,chr_time.AccTime,Environment.NewLine));
                        VPF_Search.Save (new BinaryWriter (File.OpenWrite (VPF_file)));
                    } else {
                        VPF_Search = new VP_Forest ();
                        VPF_Search.Load (new BinaryReader(File.OpenRead(VPF_file)));
                    }

                    // indice secuencial
                    Sequential Seq=new Sequential();
                    Seq.Build(DB);

                    // índices EPT
                    EPTable eptable_rnd400=new EPTable();	// 400 pivots / group
                    EPTable eptable_rnd100=new EPTable(); 	// 100 pivots / group
                    EPTable eptable_rnd8=new EPTable();		// 8 pivots / group
                    EPTable eptable_rnd32=new EPTable();	// 32 pivots / group
                    EPTable eptable_opt=new EPTable();

                    // Construye los índices EPT
                    Chronos chr_ept;
                    string ept_file = "ept-opt-" + dbname + "-grps-" + j + ".idx";
                    if (!File.Exists (ept_file)) {
                        chr_ept = new Chronos ();
                        chr_ept.Start ();
                        eptable_opt.Build (DB, j, (MetricDB _db, Random seed) => new EPListOptimized (DB, j,seed, 1000, .8), 1);
                        chr_ept.End ();
                        File.AppendAllText ("index-" + dbname + "-construction-speed-ept.csv", string.Format ("EPT-opt {0} {1}{2}", j, chr_ept.AccTime, Environment.NewLine));
                        eptable_opt.Save (new BinaryWriter (File.OpenWrite (ept_file)));
                    } else {
                        eptable_opt.Load (new BinaryReader (File.OpenRead (ept_file)));
                    }

                    ept_file = "ept-rnd100-" + dbname + "-grps-" + j + ".idx";
                    if (!File.Exists (ept_file)) {
                        chr_ept = new Chronos ();
                        chr_ept.Start ();
                        eptable_rnd100.Build (DB, j);
                        chr_ept.End ();
                        File.AppendAllText ("index-" + dbname + "-construction-speed-ept.csv", string.Format ("EPT-rnd100 {0} {1}{2}", j, chr_ept.AccTime, Environment.NewLine));
                        eptable_rnd100.Save (new BinaryWriter (File.OpenWrite (ept_file)));
                    } else {
                        eptable_rnd100.Load (new BinaryReader (File.OpenRead (ept_file)));
                    }

                    ept_file = "ept-rnd8-" + dbname + "-grps-" + j + ".idx";
                    if (!File.Exists (ept_file)) {
                        chr_ept = new Chronos ();
                        chr_ept.Start ();
                        eptable_rnd8.Build (DB, j, (MetricDB _db, Random seed) => new EPListRandomPivots (DB, 8,seed), 1);
                        chr_ept.End ();
                        File.AppendAllText ("index-" + dbname + "-construction-speed-ept.csv", string.Format ("EPT-rnd8 {0} {1}{2}", j, chr_ept.AccTime, Environment.NewLine));
                        eptable_rnd8.Save (new BinaryWriter (File.OpenWrite (ept_file)));
                    } else {
                        eptable_rnd8.Load (new BinaryReader (File.OpenRead (ept_file)));
                    }

                    ept_file = "ept-rnd32-" + dbname + "-grps-" + j + ".idx";
                    if (!File.Exists (ept_file)) {
                        chr_ept = new Chronos ();
                        chr_ept.Start ();
                        eptable_rnd32.Build (DB, j, (MetricDB _db, Random seed) => new EPListRandomPivots (DB,32, seed), 1);
                        chr_ept.End ();
                        File.AppendAllText ("index-" + dbname + "-construction-speed-ept.csv", string.Format ("EPT-rnd32 {0} {1}{2}", j, chr_ept.AccTime, Environment.NewLine));
                        eptable_rnd32.Save (new BinaryWriter (File.OpenWrite (ept_file)));
                    } else {
                        eptable_rnd32.Load (new BinaryReader (File.OpenRead (ept_file)));
                    }

                    ept_file = "ept-rnd400-" + dbname + "-grps-" + j + ".idx";
                    if (!File.Exists (ept_file)) {
                        chr_ept = new Chronos ();
                        chr_ept.Start ();
                        eptable_rnd400.Build (DB, j, (MetricDB _db, Random seed) => new EPListRandomPivots (DB,400, seed), 1);
                        chr_ept.End ();
                        File.AppendAllText ("index-" + dbname + "-construction-speed-ept.csv", string.Format ("EPT-rnd400 {0} {1}{2}", j, chr_ept.AccTime, Environment.NewLine));
                        eptable_rnd400.Save (new BinaryWriter (File.OpenWrite (ept_file)));
                    } else {
                        eptable_rnd400.Load (new BinaryReader (File.OpenRead (ept_file)));
                    }

                    // generar queries
                    var qstream=new QueryStream(queries_file,querie_arg);
                    List<string> reslist=new List<string>();

                    // ======================= Búsquedas ===============================0000

                    string out_file=string.Format("res-{0}-dim[{2}]-dbsize[{1}]-{3}-",dbname,DB.Count,dim,query_type);
                    string complete_out_file;
                    // Sequential
                    complete_out_file=out_file+"Seq.dat";
                    Commands.Search(Seq,qstream.Iterate(),new ShellSearchOptions(queries_file,"Sequential",complete_out_file));
                    reslist.Add(complete_out_file);
                    // VPForest
                    complete_out_file=out_file+string.Format("tau[{0}]-VPForest.dat",VPF_Search.Tau);
                    Commands.Search(VPF_Search,qstream.Iterate(),new ShellSearchOptions(queries_file,"VP-Forest",complete_out_file));
                    reslist.Add(complete_out_file);
                    // EPTable_rnd-8
                    complete_out_file=out_file+"EPTable_rnd-numgroups["+j+"]-pivspergrp[8].dat";
                    Commands.Search(eptable_rnd8,qstream.Iterate(),new ShellSearchOptions(queries_file,"EPTable-rnd-8",complete_out_file));
                    reslist.Add(complete_out_file);
                    // EPTable_rnd-32
                    complete_out_file=out_file+"EPTable_rnd-numgroups["+j+"]-pivspergrp[32].dat";
                    Commands.Search(eptable_rnd32,qstream.Iterate(),new ShellSearchOptions(queries_file,"EPTable-rnd-32",complete_out_file));
                    reslist.Add(complete_out_file);
                    // EPTable_rnd-100
                    complete_out_file=out_file+"EPTable_rnd-numgroups["+j+"]-pivspergrp[100].dat";
                    Commands.Search(eptable_rnd100,qstream.Iterate(),new ShellSearchOptions(queries_file,"EPTable-rnd-100",complete_out_file));
                    reslist.Add(complete_out_file);
                    // EPTable_rnd-400
                    complete_out_file=out_file+"EPTable_rnd-numgroups["+j+"]-pivspergrp[400].dat";
                    Commands.Search(eptable_rnd400,qstream.Iterate(),new ShellSearchOptions(queries_file,"EPTable-rnd-400",complete_out_file));
                    reslist.Add(complete_out_file);
                    // EPTable_Opt
                    complete_out_file=out_file+"EPTable_Opt-numgroups["+j+"].dat";
                    Commands.Search(eptable_opt,qstream.Iterate(),new ShellSearchOptions(queries_file,"EPTable_Opt",complete_out_file));
                    reslist.Add(complete_out_file);
                    /**/

                    // Parámetros para guardar los resultados
                    reslist.Add("--horizontal");

                    reslist.Add(string.Format("--save=res-{0}-check-out-dim[{3}]-dbsize[{1}]-{5}-VPF-Tau[{2}]-EPT-gps[{4}]",
                                              dbname,DB.Count,tau,dim,j,query_type) );
                    Commands.Check(reslist);

                }
            }
        }

        #endregion Methods

        #region Other

        /*
        public static void LoadQueries<T>(out IList<T[]> queries,string filename) where T: struct
        {
            BinaryReader br=new BinaryReader(File.OpenRead(filename));
            queries=new List<T[]>();
            int	count=br.ReadInt32();
            int dim=br.ReadInt32();
            for (int i=0;i<count;i++)
            {
                queries.Add(new T[dim]);
                PrimitiveIO<T>.LoadVector(br,dim,queries[i]);
            }
        }

        public static void LoadQueries<T>(out IList<T[]> queries,string filename,int count,int dim) where T: struct
        {
            StreamReader br=new StreamReader(filename);
            queries=new List<T[]>();
            List<T> q=new List<T>(dim);
            string line="";
            for (int i=0;i<count;i++)
            {
                line=br.ReadLine();
                Console.WriteLine("Read: {0}",line);
                queries.Add(new T[dim]);

                PrimitiveIO<T>.LoadVector(line,q);
                queries[i]=q.ToArray();
            }
        }
        */

        #endregion Other
    }
}