人脸检测方法研究

随着信息处理技术的逐步发展,人脸检测作为人脸信息处理的核心问题越来越受到重视,人脸检测作为目标检测领域中的一个典型问题,涵盖了多方面学科的知识,包括了模式识别、图像处理、计算机视觉等领域的内容,它的研究与发展必将对这些学科产生极大的推进作用并对一般物体的检测问题具有重要的指导意义.     

全国大学生网球丙、丁组男双技战术运用特征及发展对策研究

采用文献资料、数据统计、临场观察等方法对全国大学生网球丙组、丁组男双运动员技战术运用特征进行了研究,认为丙、丁组男双运动员在比赛中发球局战术多以压制对方反手、寻求稳定为主,接发球战术具有明显的单打接发球战术特点,临场阵型选择多以"一网一底"为主.在发球质量、接二发战术运用能力、网前抢网及中场对抗能力、破网能力、抓关键分能力等方面存在较大的欠缺. 建议在训练及比赛中注重提高发球和接发球质量,强化"主动拦击,积极抢网",加大中场和近网拦截训练,提前攻守转换时间,并在加强沟通与信任的基础上,制定发球局与接发球局策略以形成不同的战术套路,从而逐步提高技战术运用水平.     

‘Facing’ Identity in a ‘Faceless’ Society: Physiognomy,Facial Appearance and Identity Perception in Eighteenth-Century London

English men and women confronted many new questions about the relationship between identity and appearance during the eighteenth century. How did the face reveal information about a person’s character, morality, health, class, gender, nationality and race? How should faces be perceived in forms of social interaction? Could appearances be trusted? Through analysis of physiognomic texts, urban literature, aesthetic treatises, conduct books and cosmetic manuals, this article examines the changing social and cultural meanings attached to the face, and developments in the ways contemporary authors advised it should be ‘read’ as a signifier of character, identity and social difference in eighteenth-century London.     

How Should I Respond to Them? An Emergent Categorization of Responses to Interpersonally Communicated Stereotypes

Political correctness defines stereotypes as inappropriate to communicate. However, responses that interpersonally communicated stereotypes receive in conversation may collaboratively produce a different meaning about the appropriateness of stereotype use. The current research reports two studies that explore responses to interpersonally communicated stereotypes and the role these responses play in the perpetuation of stereotypes. This project contributes qualitative research in intercultural communication that exposes a variety of tolerant response types available to communicators and demonstrates how these responses are managed interactionally in ways that show tolerance for communicated stereotypes.     

Let's Make Peace! A Cross-Cultural Analysis of the Effects of Serial Arguing Behaviors in Romantic Relationships: The Case of Malagasy Romantic Partners

This study extends the Western research on serial arguing by replicating that research with a non-American sample: the Malagasy people. Two hundred and twenty-four people were recruited from Madagascar, and from among members of the Malagasy diasporas in France, Québec, and the United States. Consistent with research conducted in the U.S. culture, demand/withdraw conflict behavior was a better predictor of relational outcomes than attempts at reconciliation or the frequency of serial arguing. The study highlighted within-cultural differences. The frequency of serial arguing was positively correlated with vertical individualism and vertical collectivism but negatively correlated with horizontal individualism.     

The Effects of National Culture and Face Concerns on Intention to Apologize: A Comparison of the USA and China

The current study examined national culture differences between US American and Chinese participants (N?=?317) regarding face need concerns and apology intention, based on positive and negative face needs (Brown & Levinson, 1987 Brown, P and Levinson, SC. 1987. Politeness: Some universals in language usages, Cambridge, , UK: Cambridge University Press. [Crossref] , [Google Scholar]) and concerns for self-face and other-face (Ting-Toomey, 2005 Ting-Toomey, S. 2005. “The matrix of face: An updated face-negotiation theory”. In Theorizing about intercultural communication, Edited by: Gudykunst, WB. 71–92. Thousand Oaks, CA: Sage.  [Google Scholar]). Participants read vignettes that varied in relationship types (in-group vs. out-group members) and situation types (negative face vs. positive face threatening) and responded to scales measuring realism of the vignettes, intention to apologize, and five types of face need concerns. The findings showed that Chinese participants, compared to US Americans, had stronger intentions to apologize when their acts threatened the other person's positive face, while US American participants, compared to Chinese, had stronger intentions to apologize when their acts threatened the other's negative face. Other findings and implications thereof are discussed.     

Assessment of attention in school children: teachers' ratings related to tests of attention

The paper provides (1) a teacher-administered rating instrument for inattention without confounding the rating with hyperactivity and conduct disorder, and (2) evidence that the ratings correlate with the scores obtained from cognitive tests of attention. In Study I, the first objective was to investigate the construct validity and the inter-rater reliability of the Attention Checklist (ACL) by factor analysing the teacher ratings of 110 Grade 4 children, obtained by using the ACL. The second objective was to investigate the predictive validity of the ACL by examining the relationship between the scores obtained for the participants from teachers' ratings using the ACL and the scores obtained by participants in the lab-type attention tests. The results of factor analysis showed that a single factor labelled ‘inattention’ underlies the 12 items in the ACL. Examining the differences in performance on attention tests, the ‘low attention’ children as rated by the teachers on the ACL scored lower than the ‘high attention’ children on the objective tests of attention. These findings were replicated in Study II, which was conducted to test further the construct validity and predictive validity of the ACL. This time, only those two tests (Auditory Attention and Visual Attention) that had shown relatively poor discrimination between the high and low attention groups in Study I were, again, administered to another cohort of 97 Grade 4 children, as it was our intention to further challenge the reliability of the ACL. Overall, the results of both studies suggest that comprehensive assessment of attention skills should include both ACL and objective measures of selective attention.     

凯洛夫主编《教育学》的中国面孔

凯洛夫主编《教育学》在中国主要有三幅面孔:教育学教材的模板、资产阶级教育学、一本苏联的教育学教材。在分析三幅面孔表现的基础上,探究了呈现此面孔的原因,揭示了其影响和启示。     

Informational Sources,Social Media Use,and Race in the Flint,Michigan, Water Crisis

Safe, clean water is necessary for health and well-being. Water issues affect minority and vulnerable populations at disproportionate rates, including the poor and racial and ethnic minorities. An investigation of the relationships of race, social media use, and informational sources during the municipal water crisis in Flint, Michigan, reflects an instrumental view of communication and uses and gratifications theory in this study. Data from 208 Flint residents in 2016 indicated that African American respondents favored interpersonal networks and resources and were more likely than other racial groups to obtain current information about the water crisis via Instagram. Preferred channels and sources to receive additional crisis information varied on the basis of race.     

基于稀疏表示的人脸识别算法

近年来,人脸识别一直是计算机视觉和模式识别领域一个很热门研究课题。随着压缩感知理论的发展,稀疏表示已经成功应用于人脸识别。文章系统地综述了人脸识别的研究现状、系统,并重点介绍了基于稀疏表示的人脸识别算法及求解,最后对人脸识别算法存在的问题以及发展进行了展望。