Examples of OptPFDS16

me.lemire.integercompression.OptPFDS16

OptPFD based on Simple16 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 OptPFDS16(), new VariableByte()).

Note that this does not use differential coding: if you are working on sorted lists, you must compute the deltas separately. For multi-threaded applications, each thread should use its own OptPFDS16 object. @author Daniel Lemire

                                new OptPFDS9(), new VariableByte()), data,
                                repeat, true);
                        System.out.println();


                        testCodec(csvLog, sparsity, new Composition(
                                new OptPFDS16(), new VariableByte()), data,
                                repeat, false);
                        testCodec(csvLog, sparsity, new Composition(
                                new OptPFDS16(), new VariableByte()), data,
                                repeat, false);
                        testCodec(csvLog, sparsity, new Composition(
                                new OptPFDS16(), new VariableByte()), data,
                                repeat, true);
                        System.out.println();




                        testCodec(csvLog, sparsity, new Simple9(), data,

All source code are property of their respective owners. Java is a trademark of Sun Microsystems, Inc and owned by ORACLE Inc. Contact coftware#gmail.com.

Examples of OptPFDS16

Examples of me.lemire.integercompression.OptPFDS16