词语间依存关系的定量识别

本文扩展和改进了现有的词语间依存关系定量识别算法,充分考虑词项概率分布的影响;明确区分词项之间的搭配关系、并列关系和从属关系,针对它们不同的特点,提出不同的识别算法;提出字串匹配模型;充分考虑两个词项之间相互位置的离散分布和距离的影响、以及它们的概率分布特性, 提出词项间的依存强度模型,并据此构建词语间依存关系树;提出更新策略,对已经建好的依存关系树进行裁剪,并挖掘出潜在的依存关系。应用实验结果表明,本文提出的算法可以有效地识别出词语间的依存关系。     

A random walk algorithm for automatic construction of domain-oriented sentiment lexicon

In recent years, many studies have been conducted to deal with automatic construction of domain-oriented sentiment lexicon. However, most of the attempts rely on only the relationship between sentiment words, failing to uncover the mutual relationship between the words and the documents, as well as ignoring the useful knowledge of some existed domains (or “old domain”). This paper proposes a random walk algorithm to construct domain-oriented sentiment lexicon by simultaneously utilizing sentiment words and documents from both old domain and target domain (or “new domain”). The approach simulates a random walk on the graphs that reflect four kinds of relationships (the relationship between words, the relationship from words to documents, the relationship between documents, the relationship from documents to words) between documents and words. Experimental results indicate that the proposed algorithm could dramatically improve the performance of automatic construction of domain-oriented sentiment lexicon.     

隐私保护整数区间位置关系判定问题

整数区间是指区间的左右端点都是整数,由左右端点及它们之间的所有整数构成的集合。整数区间的位置关系是指两个整数区间在数轴上的位置的相对关系。针对整数区间位置关系提出一种安全两方计算问题,即隐私保护整数区间位置关系判定问题,该问题旨在帮助拥有隐私整数区间的两个用户,在保护输入隐私的前提下,正确地判断出他们的整数区间的位置关系。定义了整数区间的6种位置关系,给出了整数区间的0-1编码方案,并证明了整数区间位置关系的一种判定准则。基于Goldwasser-Micali加密体制在半诚实攻击者模型下设计了解决整数区间位置关系判定问题的一个两方计算协议,证明了协议的正确性和安全性,并对协议的性能进行了分析和说明。     

隐私保护整数区间位置关系判定问题

整数区间是指区间的左右端点都是整数，由左右端点及它们之间的所有整数构成的集合。整数区间的位置关系是指两个整数区间在数轴上的位置的相对关系。针对整数区间位置关系提出一种安全两方计算问题，即隐私保护整数区间位置关系判定问题，该问题旨在帮助拥有隐私整数区间的两个用户，在保护输入隐私的前提下，正确地判断出他们的整数区间的位置关系。定义了整数区间的6种位置关系，给出了整数区间的0-1编码方案，并证明了整数区间位置关系的一种判定准则。基于Goldwasser-Micali加密体制在半诚实攻击者模型下设计了解决整数区间位置关系判定问题的一个两方计算协议，证明了协议的正确性和安全性，并对协议的性能进行了分析和说明。     

基于模糊聚类的数据挖掘在临床检验信息系统中的应用

临床检验信息系统的应用产生了大量的数据,采用了SQL查询语言从临床检验系统中提取检验数据,并对这些数据进行了数据预处理、选用了逐步聚类算法,得到合理的分类结果:女性年龄与血沉关系与男性年龄与血沉关系的不同;女性年龄与血栓长度与男性年龄与血栓长度不同。采用数据挖掘方法对这些数据进行分析,发现有用的知识,为老年人疾病预防诊治提供医学参考。     

《知网》语义关系图的自动构建

在真实语言环境中,词语间的联系普遍存在、错综复杂。为了更好融合和使用各种语义资源库中的语义关系,构建可计算的汉语词汇语义资源,该文提出了通过构建语义关系图整合各种语义资源的方法,并在《知网》上实现。《知网》作为一个知识库系统,对各个词语义项是以分条记录的形式存储的,各种词汇语义关系隐含在词典文件和义原描述文件中。为提取《知网》中语义间的关系,本文首先将《知网》中的概念以概念树的形式重新表示,并从概念树中提取适当的语义关系,构建语义关系图。经过处理,得到88种589 984条语义关系,图上各种节点具有广泛的联系,为基于语义关系图的进一步分析和计算打下了基础。     

矩阵正规程度的度量与矩阵的对角优势度

采用统计研究的方法,详细分析了衡量矩阵正规程度的几种主要指标之间的关系以及它 们与矩阵的特征值摄动量的关系,进而讨论了矩阵的对角优势度与上述诸指标之间以及与特 征值摄动量之间的关系,给出了一些经验公式.     

C语言中语句结构串间公共结构串的计算

在评价新手的C语言程序时,需要根据程序的结构串表示建立结构关系图,用于描述程序的语句、块间的同级关系和依附关系,以方便比较语句的结构。文章根据结构关系图的构建方法和其使用特点,给出了语句结构串问公共结构串的求法。     

Internet pornography and relationship quality: A longitudinal study of within and between partner effects of adjustment,sexual satisfaction and sexually explicit internet material among newly-weds

Several studies have established a negative relation between the use of sexually explicit Internet material (SEIM) and relationship quality. While most studies imply SEIM use decreases relationship quality, the opposite might also be true: lower relationship quality might increase people’s SEIM use. This article aims to shed light on the directionality of the relation between SEIM use and relationship quality among married couples. We used prospective dyadic data to examine the short- and long-term relation between SEIM use, sexual satisfaction, and relationship adjustment among adult SEIM users and their partners. The results showed that, among husbands, adjustment and SEIM use are negatively and reciprocally related. Also, sexual satisfaction among husbands predicted a decrease in their wives’ SEIM one year later, while wives’ SEIM did not affect their husbands’ sexual satisfaction. The findings have important implications for theories on the link between relationship quality and SEIM use.     

移动通信网络位置群体关联用户挖掘

当前用户网络关系分析主要是研究用户之间的关联关系或群体关系,对于网络中用户与群体之间关联关系的研究相对较少。鉴于移动通信网络用户之间存在多样的特征关联,用户与群体之间也存在多样的关联关系。基于移动通信网络中具有一定通信相关性和位置规律相似性的特定群体,将位置预测引入位置项相关性度量,建立用户位置轨迹相关性度量标准,并提出了特定群体位置关联用户挖掘算法。仿真结果表明,所提出的方法能够实现对用户与群体之间关联关系的度量,能够利用位置相关性发现与特定群体具有潜在关联的用户。     

几何要素误差传递关系图的建立方法

针对三维环境下标注的检验、分析和管理的问题,提出了基于实体模型的零件几 何要素误差传递关系图的概念和建立方法。首先根据几何公差关联的几何要素之间的基准-目标 关系建立误差传递关系子图;然后根据几何要素的类型、位置关系和尺寸线的位置信息确定尺 寸公差关联的几何要素之间的基准-目标关系,从而将几何要素之间无向的尺寸关联关系转化为 有向的误差传递关系,实现增加和扩充误差传递关系子图的目的;最终形成整个零件的几何要 素误差传递关系图。基于 SolidWorks 的二次开发功能,使用 VC++语言开发了原型软件,通过 实例验证了该方法的可行性。     

The virtual malleable self and the virtual identity discrepancy model: Investigative frameworks for virtual possible selves and others in avatar-based identity construction and social interaction

This article introduces the novel model of “virtual identity discrepancy” as an investigative framework for computer-mediated self-representation and interpersonal communication in avatar-based virtual environments (VEs). Study 1 examined the roles of virtual self-discrepancy and self-presence in intrapersonal virtual identity construction. Study 2 explored the roles of virtual other-discrepancy, social presence, expectancy violation, and uncertainty reduction in animated avatar-to-avatar (AtA) virtual social interaction. Mediation analyses following a bootstrapping procedure indicated that self-presence mediates the relationship between virtual self-discrepancy and flow while social presence mediates the relationship between virtual other-discrepancy and flow. Furthermore, expectancy violation mediates the relationship between self-disclosure and trust in text-based chatting while uncertainty reduction mediates the relationship between nonverbal immediacy and flow in nonverbal communication between avatars.     

Investigating the effects of IS strategic leadership on organizational benefits from the perspective of CIO strategic roles

In this study, the effects of IS strategic leadership on organizational outcomes are examined from the perspective of CIO strategic roles. A field survey is conducted that collects data from 110 matched pairs of CIOs and business executives within organizations. Our findings suggest that strategic leadership significantly affects both organizational benefits and information system quality. Further, we found that IS quality significantly mediates the relationship between IS strategic leadership and organizational benefits. We also note that IS vision significantly moderates the relationship between IS strategic leadership and IS quality, although it does not moderate the relationship between IS strategic leadership and organizational benefits or the relationship between IS quality and organizational benefits.     

基于活动分解和ECA规则的软件过程建模

软件过程由多个活动组成,活动可以分解成子活动,活动间的关系包括静态关系和动态关系。提出基于活动分解和．ECA规则的过程建模。通过活动分解对软件过程的静态部分进行建模,描述活动与子活动之间的关系;通过ECA规则描述活动之间的动态时序关系,即描述触发活动的事件和内部条件,给过程的调整和动态变化带来了方便,增强了其适应变化的能力。     

一种针对遥感图像中群目标的自动识别方法

传统群目标识别方法通常利用目标与背景的纹理差异分割目标,虽然具有简单高效的优点,但是对群目标的空间方位没有直观的认识.针对遥感图像中群目标的特性,提出了利用子目标群方位关系来实现群目标自动识别的算法.算法在边缘提取的基础上,改进了基于置信度的Hough变换子目标定位方法.将目标群方位、结构信息等与ROI区域的分离紧密结合起来从而达到后续精确判断目标群装备的目的.实验结果表明相比于传统方法,算法在检测遥感图像中群目标时具有更高的精度.     

Need for Affiliation,Need for Popularity,Self-Esteem,and the Moderating Effect of Big Five Personality Traits Affecting Individuals’ Self-Disclosure on Facebook

The purpose of this study is to explore the moderating effect of Big Five personality traits on the relationship between the predictors (need for affiliation, need for popularity, and self-esteem) and self-disclosure on Facebook. The sample of this study is 354 Facebook users from 5 different cultures in East Asia. A partial least square structural equation modeling data analysis technique was performed to analyze the moderator research framework. This study demonstrates that particular Big Five personality traits moderate each relationship. Specifically, Conscientiousness and Emotional Stability negatively moderate the relationship between need for affiliation and self-disclosure. Agreeableness negatively moderates the relationship between self-esteem and self-disclosure. Openness to New Experience negatively moderates the relationship between need for popularity and self-disclosure. The study suggests the importance of the interaction of personality variables to better understand self-disclosure phenomenon on Facebook. The findings and implications of this study are discussed in the article.     

Computer attitude as a moderator in the relationship between computer anxiety,satisfaction, and stress

The present study empirically examines the relationship between computer anxiety, job satisfaction, career satisfaction, and stress. Based on self-efficacy theory and self-worth theory of achievement-motivation, it is hypothesized that the relationship between computer anxiety and job satisfaction is curvilinear and attitude towards computer moderates such relationship. The relationship between computer anxiety and career satisfaction and job stress were empirically examined in this study. Two hundred and thirty undergraduate students (125 female and 105 male students) at a university in south-western part of Louisiana completed computer anxiety, computer attitude, job satisfaction, career satisfaction and stress surveys. Hierarchical moderated regression results support that the attitude towards computer acts as a moderator in the relationship between (i) computer anxiety and stress, (ii) computer anxiety and job satisfaction, and (iii) computer anxiety and career satisfaction. Implications for management are discussed.     

Computer-Mediated Relationship Development: A Cross-Cultural Comparison

This study extends prior scholarship on the role of self-disclosure in relationship development on the Internet in three different cultures: Korea, Japan, and the United States. The duration of the online relationship was considered as well as the two typical dimensions (i.e., breadth and depth) of self-disclosure. The results suggest some cross-cultural differences and similarities in the associations between self-disclosure and relationship qualities. For Americans, Japanese, and Koreans, self-disclosure was directly associated with online relationship development. However, the relationship between self-disclosure and trust was positive only for Americans.     

基于序列标注的引语识别初探

句间引用关系自动识别是篇章分析中一项重要内容。句间引用关系影响着对句群篇章的分析,而目前自然语言处理中对引用这一句间关系的研究较少。句间引用关系主要体现在引语中的引用句上。引语由引导句和引用句组成,一般分为直接引语和间接引语,其中间接引语的识别难度最大。引导句和引用句相对位置不定、不同领域语料的引语与非引语比例极不均衡等进一步增加了引语自动识别的难度。该文主要尝试对引用这一句间关系进行初步探索,采用条件随机场(CRF)以及双向长短期记忆网络与条件随机场相结合(BLSTM-CRF)的方法对引语进行自动识别,并引入引导句中管领词特征进行实验对比。实验结果表明,CRF模型和BLSTM-CRF模型对引语的识别精确率分别达到85.49%和80.19%,F值分别达到78.75%和79.60%。     

数据工作期在多表查询中的运用

建立临时关系的目的是使子表的记录指针随父表的记录指针的移动而移动,从而达到同时浏览多个表中数据的目的,本文首先简单介绍了表的关联、数据工作期和临时关系等基本概念,然后通过举例重点介绍了运用数据工作期如何建立表间关联、如何实施查询的步骤和方法。