新一代数字图书馆应用支撑平台的研究与开发

采用文献研究、案例调研和需求分析方法,提炼出新一代数字图书馆应用支撑平台的主要特点。在此基础上,通过软件工程方法,借鉴相关领域的理论研究、最佳实践和标准规范,设计出新一代数字图书馆应用支撑平台的体系结构及其数据模型。利用课题组自己的专利、软件著作权和学术论文等成果,实现应用支撑平台——"爱迪智搜平台"。最后,介绍该平台在中国高等教育数字图书馆中的部署和应用情况,探讨平台设计的科学性和下一步工作重点。     

Is my stance the same as your stance? A cross validation study of stance detection datasets

Stance detection identifies a person’s evaluation of a subject, and is a crucial component for many downstream applications. In application, stance detection requires training a machine learning model on an annotated dataset and applying the model on another to predict stances of text snippets. This cross-dataset model generalization poses three central questions, which we investigate using stance classification models on 7 publicly available English Twitter datasets ranging from 297 to 48,284 instances. (1) Are stance classification models generalizable across datasets? We construct a single dataset model to train/test dataset-against-dataset, finding models do not generalize well (avg F1=0.33). (2) Can we improve the generalizability by aggregating datasets? We find a multi dataset model built on the aggregation of datasets has an improved performance (avg F1=0.69). (3) Given a model built on multiple datasets, how much additional data is required to fine-tune it? We find it challenging to ascertain a minimum number of data points due to the lack of pattern in performance. Investigating possible reasons for the choppy model performance we find that texts are not easily differentiable by stances, nor are annotations consistent within and across datasets. Our observations emphasize the need for an aggregated dataset as well as consistent labels for the generalizability of models.     

协同视阈下长三角创新共同体演化机制研究

创新共同体是加强城市群空间尺度上协同、推动区域经济高质量发展的重要举措。本文基于创新共同体跨区域协同和溢出效应等特征,引入了空间因素和地方保护主义行为,构建了协同视阈下长三角创新共同体演化博弈模型,以案例仿真刻画动态演化过程和重要影响因素。研究表明：政府介入对创新共同体建设发挥重要作用,知识产权保护、政府支持等因素对系统趋于协同创新方向演化具有正向作用,力度越大,系统收敛速度越快;地方保护主义和空间距离对系统向协同创新演化有负向作用,超过一定阈值后,难以结成创新共同体;学研方的学术质量对系统趋于协同创新方向演进具有正向作用,学术质量越高,系统收敛速度越快;企业和学研方的努力程度存在一定最优区间,区间内可促使博弈方向协同创新演进。本研究结论对全面认识创新共同体建设与演化,推动区域间良性互动,实现区域经济高质量发展具有重要现实意义。     

粤港澳大湾区创新要素跨境流动的动力因素与公共政策研究

基于创新要素跨区域流动的一般规律和动力因素,探讨在粤港澳大湾区“两种制度、三个关税区、三种法律体系”下,公共政策如何推动创新人才和科技资源在粤、港、澳三地畅通流动和配置。针对科研人才过境、跨区域创业就业、科研经费过境管理、科技金融服务、科研仪器设备过境等关键问题,提出破解创新要素跨境流动障碍、推动三地共建粤港澳大湾区国际科技创新中心的政策建议。     

调整大学英语教材以增加中国文化渗透应慎行

中国文化走出去战略意义日益提高,而中国大学英语教育中中国文化缺失的问题又日益凸显,由此有教育者疾呼应调整大学英语教材以增加中国文化渗透。而本文作者则认为这建议有不合理之处,首先,中国文化失语症的根本原因是文化知识缺失,而非英语表达方式缺失;其次,在调整过程中,"具体选择哪些内容"和"具体在哪个阶段使用"这两个关键问题目前尚没有得到合理解答。同时,此类建议对提高跨文化交际能力的实际效用并不大。因此,本文作者认为调整大学英语教材以增加中国文化渗透应慎行。     

本体驱动的跨语言信息检索研究

分析跨语言信息检索技术的翻译歧异性问题，指出多语本体的引入可以提高语义排歧的准确性，详细分析两个国外的跨语言信息检索系统，并在此基础上提出一个基于双语本体的中英跨语言信息检索模型及实现方案。     

Consensual and individual stereotypic beliefs about international students among American host nationals

The present study examined the consensual stereotype of an extraordinarily heterogeneous social group, international students who are sojourning in the United States, among American host nationals. The content and valence of the cultural stereotype was assessed using a multicomponent, free-response methodology with N=100 American college students. On the whole, consensual and individual stereotypic representations of international students were somewhat favorable, although a number of negative attributes were consistently ascribed to the group. The percentages of agreement among participants concerning the attributes of foreign students were substantial, indicating that international students are regarded as a fairly homogenous outgroup by domestic students, notwithstanding the extreme heterogeneity of the foreign student population. Individual stereotypic beliefs about international students were significantly correlated with overall attitudes and behaviors (social contact) toward the group. The negative evaluative content of participants’ individual stereotypic beliefs was strongly related to prejudicial attitudes and social avoidance of the group.     

Upward impression management in the work place cross-cultural analysis

This paper examines three basic issues pertaining to impression management behavior in the cross-cultural context: (a) Do employees coming from different cultures differ in the legitimacy they attribute to upward impression management? (b) Is there an agreement across cultures about the image one should convey to one's superior? (c) Do cultural groups differ in the use of impression management strategies? We use preliminary data collected in two different cultural groups: Israel-born employees and recent immigrants from the former Soviet Union.     

短道速滑横切犯规区域、行为方式及预防对策研究

横切是违反短道速滑滑跑规则的主要行为之一,在短道速滑比赛中屡见不鲜。如短道速滑教练员和运动员不能对横切犯规引起高度的重视,多年的训练成绩将被断送。采用调查法及综合分析的方法,对2002～2003赛季全国短道速滑联赛进行调查,对横切犯规区域、行为方式进行研究与分析,有助于教练员、运动员加强防范意识,并采取必要的预防对策,在比赛中避免横切犯规的发生。     

Cross Fi t训练体系应用于中职体育篮球特长生体能训练的实证研究

运用实验、数理统计等研究方法对cross fit训练体系在中职体育篮球特长生的日常体能训练中的应用进行实证研究。结果表明, Cross fit训练体系相比于传统的体能训练模式能够快速提高体育篮球特长生的爆发力、速度、耐力和协调性。