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Search Results: 1 - 10 of 99034 matches for " Yu-Feng Yao "
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Name Disambiguation Method Based on Attribute Match and Link Analysis  [PDF]
Yu-Feng Yao
Journal of Software Engineering and Applications (JSEA) , 2012, DOI: 10.4236/jsea.2012.51005
Abstract: A name disambiguation method is proposed based on attribute match and link analysis applying in the field of insurance. Aiming at the former name disambiguation methods such as text clustering method needs to be considered in a lot of useless words, a new name disambiguation method is advanced. Firstly, the same attribute matching is applied, merging the identity of a successful match, secondly, the link analysis is used, structural analysis of customers network is analyzed, Finally, the same cooperating information is merged. Experiment results show that the proposed method can realize name disambiguation successfully.
An Improved Name Disambiguation Method Based on Atom Cluster  [PDF]
Yu-Feng Yao
Communications and Network (CN) , 2012, DOI: 10.4236/cn.2012.41004
Abstract: An improved name disambiguation method based on atom cluster. Aiming at the method of character-related properties of similarity based on information extraction depends on the character information, a new name disambiguation method is proposed, and improved k-means algorism for name disambiguation is proposed in this paper. The cluster analysis cluster is introduced to the name disambiguation process. Experiment results show that the proposed method having the high implementation efficiency and can distinguish the different people with the same name.
Nilpotent commuting varieties of the Witt algebra
Yu-Feng Yao,Hao Chang
Mathematics , 2013, DOI: 10.1016/j.jpaa.2014.02.004
Abstract: Let $\mathfrak{g}$ be the $p$-dimensional Witt algebra over an algebraically closed field $k$ of characteristic $p>3$. Let $\mathscr{N}={x\in\ggg\mid x^{[p]}=0}$ be the nilpotent variety of $\mathfrak{g}$, and $\mathscr{C}(\mathscr{N}):=\{(x,y)\in \mathscr{N}\times\mathscr{N}\mid [x,y]=0\}$ the nilpotent commuting variety of $\mathfrak{g}$. As an analogue of Premet's result in the case of classical Lie algebras [A. Premet, Nilpotent commuting varieties of reductive Lie algebras. Invent. Math., 154, 653-683, 2003.], we show that the variety $\mathscr{C}(\mathscr{N})$ is reducible and equidimensional. Irreducible components of $\mathscr{C}(\mathscr{N})$ and their dimension are precisely given. Furthermore, the nilpotent commuting varieties of Borel subalgebras are also determined.
Borel subalgebras of the Witt algebra $W_1$
Yu-Feng Yao,Hao Chang
Mathematics , 2012,
Abstract: Let $\mathbb{F}$ be an algebraically closed field of characteristic $p>3$, and $\ggg$ the $p$-dimensional Witt algebra over $\mathbb{F}$. Let $\N$ be the nilpotent cone of $\ggg$. Explicit description of $\N$ is given, so that the conjugacy classes of Borel subalgebras of $\ggg$ under the automorphism group are determined. In contrast with only one conjugacy class of Borel subalgebras in a classical simple Lie algebra, there are two conjugacy classes of Borel subalgebras in $\ggg$. The representatives of conjugacy classes of Borel subalgebras, i.e., the so-called standard Borel subalgebras, are precisely given.
Application of data mining in customer name disambiguation of insurance field
一种新的重名消解算法在保险领域中的应用研究*

YAO Yu-feng,
姚宇峰

计算机应用研究 , 2012,
Abstract: 研究客户重名消解问题。针对以往重名消解方法如文本聚类的方法需考虑大量无用词汇并需要人工设定阈值以及类别数量,而基于信息抽取的人物相关属性相似度方法对于人物信息的抽取具有依赖性,提出了一种改进的重名消解算法。该算法首先对具有相同标志的客户进行属性匹配,合并匹配成功的标志;然后进行链接分析,对客户合作网的结构进行分析,将具有相同标志并与同一个代理人实体合作的客户归为一个客户实体,并把具有相同合作对的信息加以分析合并;最后通过原子团簇分析法进行聚类分析。仿真实验结果表明,所提改进算法对中文字符串的匹配处理进行了优化,执行效率高,适合于以大量数据为特征的保险领域的重名消解。
Trustworthy pointer analysis for software reliability
面向软件可信性的可信指针分析技术综述*

YAO Yu-feng,
姚宇峰

计算机应用研究 , 2012,
Abstract: 对可信指针分析技术的定义和描述、指针分析对软件可信性的保障、可信指针分析属性以及该领域主要研究成果等方面进行了综述。通过对现有可信指针分析技术的分析和比较,详细讨论了面向软件可信性的可信指针分析的关键技术;此外,重点介绍了流敏感指针分析及上下文敏感指针分析的方法和理论;最后对进一步研究工作的方向进行了展望。
A criterion for irreducibility of parabolic baby Verma modules of reductive Lie algebras
Yi-Yang Li,Bin Shu,Yu-Feng Yao
Mathematics , 2014,
Abstract: Let $G$ be a connected, reductive algebraic group over an algebraically closed field $k$ of prime characteristic $p$ and $\mathfrak{g}=Lie(G)$. In this paper, we study representations of $\mathfrak{g}$ with a $p$-character $\chi$ of standard Levi form. When $\mathfrak{g}$ is of type $A_n, B_n, C_n$ or $D_n$, a sufficient condition for the irreducibility of standard parabolic baby Verma $\mathfrak{g}$-modules is obtained. This partially answers a question raised by Friedlander and Parshall in [Friedlander E. M. and Parshall B. J., Deformations of Lie algebra representations, Amer. J. Math. 112 (1990), 375-395]. Moreover, as an application, in the special case that $\mathfrak{g}$ is of type $A_n$ or $B_n$, and $\chi$ lies in the sub-regular nilpotent orbit, we recover a result of Jantzen in [Jantzen J. C., Subregular nilpotent representations of $sl_n$ and $so_{2n+1}$, Math. Proc. Cambridge Philos. Soc. 126 (1999), 223-257].
Grinding Characteristics of Reaction Bonded Silicon Carbide
YAO Wang, ZHANG Yu-Min, HAN Jie-Cai, ZHOU Yu-Feng
无机材料学报 , 2012, DOI: 10.3724/sp.j.1077.2012.11514
Abstract: Surface topography, surface residual stress and bending strength of RBSiC ground using diamond wheel were studied. Grinding RBSiC is removed mainly by brittle fracture and lightly by ductile cutting. With the increase of down feed, surface roughness Ra increases. Burnishing with no down feed can improve the Ra in some way. With increasing down feed, the compressive residual stress decreases because of an inadequately cooling effect. Compare with the specimens grounded using 0.9 μm/s, those using down feed of 1.35 μm/s have worse surface quality. Considering both the processing efficiency and the surface quality, the optimum parameters are as follow: 0.9μm/s down feed, 2.1 r/min work table rotational speed and 1 min burnishing.
THE ION CURRENT BEHAVIOR IN ECR ARGON PLASMA

YAO XIN-ZI,JIANG DE-YI,REN YU-FENG,

中国物理 B , 1994,
Abstract: The ion current density as a function of various system parameters, such as pressure, magnetic field, and microwave power, has been studied by using Faraday cup. The bistability of plasma was observed and discussed.
Optimization of access control list based on locator/identifier split
基于位置与标志分离的访问控制列表优化

YAO Yu-feng,TU Rui,
姚宇峰
,涂睿

计算机应用研究 , 2010,
Abstract: With the support of locator and identifier separation architecture (LISA),this paper proposed IBAC model which made network access control more accurate and efficient. However, IBAC increased the process costs of ACL(access control list).In order to reduce the process costs,this paper analyzed and optimized the rules structure of ACL.The simulation test results prove the efficiency of the optimization approach.
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