【摘 要】
：
Approximate Nearest Neighbor(ANN)search in high dimensional space has become a fundamental paradigm in many applications.Recently,Locality Sensitive Hashing
【出 处】
：
第七届国际博士生论坛暨青年教师发展研讨会
论文部分内容阅读
Approximate Nearest Neighbor(ANN)search in high dimensional space has become a fundamental paradigm in many applications.Recently,Locality Sensitive Hashing(LSH)and its variants are acknowledged as the most promising solutions to ANN search.However,state-of-the-art LSH approaches suffer from a drawback: accesses to candidate objects require a large number of random I/O operations.In order to guarantee the quality of returned results,sufficient objects should be verified,which would consume enormous I/O cost.
其他文献
人参是我国名贵中药，其主要活性成分是人参皂甙。存在于人参中的天然人参皂甙活性较低，而那些在白参中几乎不存在的稀有人参皂甙往往有较好的药理学活性。在结构上，这些稀有人参皂甙与人参中含量较多的人参皂甙Rb1、Rb2、Rc等相比，仅仅是在糖基侧链上有所不同。因此，可以通过改造人参皂甙的结构来制备稀有人参皂甙。目前，人参皂甙改造的方法集中在化学法和生物转化法，而生物转化法作为一种环保型的工艺，以其高效率、
在以往传统应试教育之下,学生的学习积极性不断下降,使得教学效率不甚良好.近些年来我国积极的进行教育改革,实施素质教育,并初得成效,这两年更是致力于培养学生的核心素养.
牛病毒性腹泻-粘膜病(BVD-MD),主要引起偶蹄类家畜动物感染及并发症,对我国畜牧养殖业造成巨大经济损失。牛病毒性腹泻病毒(BVDV)在全世界范围内广泛传播,其主要的临床症状表
34 species has been reported approximately in the genus Neosiphonia(Ceramiales,Rhodomelaceae)worldwide.In China,12 species has been recorded.The authors car
Taking pictures is a commonly-seen participatory sensing manner,and has been explored in many application areas.However,in a participatory image collection
Although hashing techniques have been popular for the large scale similarity search problem,most of the existing methods for designing optimal hash function
目的：了解问号钩端螺旋体(简称钩体)感染细胞前后sph2基因表达水平变化,确定鞘磷脂酶类溶血素Sph2诱导人和鼠单核-巨噬细胞、肝细胞凋亡的活性及其机制。
方法：采用实时荧
发展CO_2分离技术能够为应对气候变化及实现全球性低碳绿色发展提供重要基础。其中膜分离技术以其能耗低、绿色高效、条件温和、操作简单等优势成为备受关注的碳捕集技术之一。设计开发出高性能的膜材料是膜分离技术的关键。本论文基于π络合型促进传递机制,设计制备一系列膜材料,通过对膜主体-界面-表面多级结构进行调控,实现膜溶解-扩散-反应多重选择机制集成优化,最终达到膜渗透性和选择性同时强化的目的。基于溶解-
Traditional way of storing facts in triplets(head entity,relation,tail entity),abbreviated as(h,r,t),makes the knowledge intuitively displayed and easily ac
本文采用FeⅡ-EDTA络合溶液，添加活性炭做催化剂，独创的提出并研究了同时脱除SO2和NO的新方法。研究结果表明：
1.在FeⅡ-EDTA构成的络合体系中，以SO32-作还原剂，活性炭做催化