Examples of me.lemire.integercompression.NewPFD

me.lemire.integercompression.NewPFD

NewPFD/NewPFOR: fast patching scheme by Yan et al.

Follows:

H. Yan, S. Ding, T. Suel, Inverted index compression and query processing with optimized document ordering, in: WWW 09, 2009, pp. 401-410.

using Simple16 as the secondary coder. It encodes integers in blocks of 128 integers. For arrays containing an arbitrary number of integers, you should use it in conjunction with another CODEC:

IntegerCODEC ic =  new Composition(new NewPDF(), new VariableByte()).

Note that this does not use differential coding: if you are working on sorted lists, you must compute the deltas separately. (Yes, this is true even though the "D" at the end of the name probably stands for delta.) For multi-threaded applications, each thread should use its own NewPFD object. @author Daniel Lemire

                                new BinaryPacking(), new VariableByte()), data,
                                repeat, true);
                        System.out.println();


                        testCodec(csvLog, sparsity, new Composition(
                                new NewPFD(), new VariableByte()), data,
                                repeat, false);
                        testCodec(csvLog, sparsity, new Composition(
                                new NewPFD(), new VariableByte()), data,
                                repeat, false);
                        testCodec(csvLog, sparsity, new Composition(
                                new NewPFD(), new VariableByte()), data,
                                repeat, true);
                        System.out.println();


                        testCodec(csvLog, sparsity, new Composition(
                                new NewPFDS9(), new VariableByte()), data,

Examples of me.lemire.integercompression.NewPFD

Related Classes of me.lemire.integercompression.NewPFD