本文针对实时数据流上的多重连续Top-k查询问题，提出了一种高效索引PH-Tree。该索引通过将滑动窗口划分为多个分区并维护候选对象集，结合最大堆结构，实现了对Top-k对象的高效组织和管理。综合实验结果显示，PH-Tree算法在性能上具有显著优势。
PH-Tree C Implementation A C implementation of a PH-Tree. Visit that website for an explanation of PH-Trees and for links to other implementations. About This is a simple implementation I did for myself, but I have tried to document it well enough for anyone interested in implementing thei...
v1.4: Added KD-Tree and adapter for PH-Tree v1.3: Reduced memory consumption v1.2: Refactoring, API improvements, slight performance improvements v1.1: Slight performance improvements v1.0: Initial release This is a Java implementation of a crit-bit tree. Acrit-bit treeis aPatricia-Triefor bin...
样本名称 Fa 上树编号 AU77296 参考基因组 CP086569.2 / T2T CHM13 v2.0 父系单倍群 T2T E-PH2818 性别 男 Y测序质量 T2T 覆盖度72.56% 平均深度56 FTDNA Big Y (bam) 祖姓 Green 祖源树TheYtree 祖源树, 父系树
样本名称 A45 上树编号 AU69286 样本类型 科研 参考基因组 hg19 / GRCh37 父系单倍群 C-PH41 性别 男 Y测序质量 覆盖度2.98% 平均深度1 科研机构 国家 Australia 数据出处 Deep Roots for Aboriginal Australian Y Chromosomes © 2025 Baidu - GS(2023)3206号 - 甲测资字11111342 - 京ICP证030173号 - Da...
doi:10.1016/0307-4412(80)90083-7SmithIvorHeadington Hill HallBiochemical EducationSmith, I., 1980. The ACTH-LPH family tree--a continuing story. Bio- chem. Educ. 8, 1-4.
PH-tree:全称PATRICIA-hypercube-tree,是把之前一种叫做PATRICIA-trie的二叉树和超立方体合并起来设计的。 特色:空间高效。PH-tree是一个内存索引,带有一定的压缩性质。用这个索引存数据,有时甚至比存原数据还要小。 1. INTRODUCTION 搜索高效:与维数无关 ...
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TREESPH - A unification of SPH with the hierarchical tree method. [Smoothed Particle Hydrodynamics] A new, general-purpose code for evolving three-dimensional, self-gravitating fluids in astrophyics, both with and without collisionless matter, is describe......
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