62 research outputs found

    Corresponding author. Tel.: 852-2788-8410; fax: 852- 2788-8423.

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    Space deformation is an important tool in computer animation and shape design. In this paper we present a new local deformation model based on generalized metaballs. The user speci"es a series of constraints, which can consist of points, lines, surfaces and volumes, their e!ective radii and maximum displacements, and the deformation model creates a generalized metaball for each constraint. Each generalized metaball is associated with a potential function centered on the constraint. The value of the potential function drops from 1 on the constraint to 0 on the boundary de"ned by the e!ective radius. This deformation model operates on the local space and is independent of the underlying representation of the object to be deformed. The deformation can be "nely controlled by adjusting the parameters of the generalized metaballs. We also present some extensions and the extended deformation model to include scale and rotation constraints. Experiments show that this deformation model is ecientandintuitive.Itcandealwithvariousconstraints,whichisdicient and intuitive. It can deal with various constraints, which is dicult for traditional deformation models. # 2000 Elsevier Science Ltd. All rights reserved

    Analysing security and privacy issues of using e-mail address as identity

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    Abstract: Nowadays, many websites allow or require users to use their e-mail addresses either as identity or for other purposes. Although username-based identity problems resulting from users' behaviours have been a research focus for quite some time, the serious issues of using e-mail address as identity and the associated online behaviours of users have not been well investigated. In this paper, we discuss and analyse security and privacy problems resulting from using e-mail address as identity via well-designed user behaviour survey and by investigating websites' design schemes. Our results illustrate that using e-mail address as identity poses high security and privacy risks. This is mainly because of the multiple usages of e-mail addresses and users' improper online habits. Moreover, we discuss drawbacks of existing solutions for e-mail address as identity and related password problems, and present potential solutions that may be used to secure online identity management systems in future

    Analysing security and privacy issues of using e-mail address as identity

    No full text
    Nowadays, many websites allow or require users to use their e-mail addresses either as identity or for other purposes. Although username-based identity problems resulting from users’ behaviours have been a research focus for quite some time, the serious issues of using e-mail address as identity and the associated online behaviours of users have not been well investigated. In this paper, we discuss and analyse security and privacy problems resulting from using e-mail address as identity via well-designed user behaviour survey and by investigating websites’ design schemes. Our results illustrate that using e-mail address as identity poses high security and privacy risks. This is mainly because of the multiple usages of e-mail addresses and users’ improper online habits. Moreover, we discuss drawbacks of existing solutions for e-mail address as identity and related password problems, and present potential solutions that may be used to secure online identity management systems in future

    New Woman in Early Twentieth-Century Chinese Fiction

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    In The New Woman in Early Twentieth-Century Chinese Fiction, Jin Feng proposes that representation of the new woman in Communist Chinese fiction of the earlier twentieth century was paradoxically one of the ways in which male writers of the era explored, negotiated, and laid claim to their own emerging identity as modern intellectuals. Specifically, Feng argues that male writers such as Lu Xun, Yu Dafu, Ba Jin, and Mao Dun created fictional women as mirror images of their own political inadequacy, but that at the same time this was also an egocentric ploy to affirm and highlight the modernity of the male author. This gender-biased attitude was translated into reality when women writers emerged. Whereas unfair, gender-biased criticism all but stifled the creative output of Bing Xin, Fang Yuanjun, and Lu Yin, Ding Ling\u27s dogged attention to narrative strategy allowed her to maintain subjectivity and independence in her writings; that is until all writers were forced to write for the collective. Feng addresses both the general and the specialized audience of fiction in early-twentieth-century Chinese fiction in three ways: for scholars of the May Fourth period, Feng redresses the emphasis on the simplistic, gender-neutral representation of the new women by re-reading selected texts in the light of marginalized discourse and by an analysis of the evolving strategies of narrative deployment; for those working in the area of feminism and literary studies, Feng develops a new method of studying the representation of Chinese women through an interrogation of narrative permutations, ideological discourses, and gender relationships; and for studies of modernity and modernization, the author presents a more complex picture of the relationships of modern Chinese intellectuals to their cultural past and of women writers to a literary tradition dominated by men.https://docs.lib.purdue.edu/ccs/1001/thumbnail.jp

    Asia-Pacific Trade and Investment Review

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    This book reviews latest trends in trade and investment policy issues facing Asia-Pacific region.Trade, Foreign Direct Investment, Financial Crisis, Environment, Agricultural Trade Liberalization, WTO

    Distilling Word Embeddings: An Encoding Approach

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    Distilling knowledge from a well-trained cumbersome network to a small one has recently become a new research topic, as lightweight neural networks with high performance are particularly in need in various resource-restricted systems. This paper addresses the problem of distilling word embeddings for NLP tasks. We propose an encoding approach to distill task-specific knowledge from a set of high-dimensional embeddings, so that we can reduce model complexity by a large margin as well as retain high accuracy, achieving a good compromise between efficiency and performance. Experiments reveal the phenomenon that distilling knowledge from cumbersome embeddings is better than directly training neural networks with small embeddings.CPCI-S(ISTP)[email protected]; [email protected]; [email protected]; [email protected]; [email protected]; [email protected]

    The institute of optimism for professional journalism in the social media era

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    Thesis (M. Arch.)--Massachusetts Institute of Technology, Dept. of Architecture, 2013.This electronic version was submitted by the student author. The certified thesis is available in the Institute Archives and Special Collections.Cataloged from student-submitted PDF version of thesis. Page 75 blank.Includes bibliographical references (p. 72-74).The ecology of contemporary journalism is experiencing a power shift from traditional media such as newspapers and TV news to social media. This shift is bringing a crisis of professional journalism in the traditional media and the emergence of public journalism based on social media. The Institute of Optimism for Professional Journalism in the Social Media Era (hereafter "lOPS") is a new institutional building for a professional broadcasting organization. The aim of the thesis is to find a new spatial medium to reformulate the function of professional journalism through a systematic friction with public journalism in the process of news production. The thesis deals with the imminent deterioration of the broadcasting station through two phased strategies. First, the thesis studies the trajectory of the relationship between the sphere of professional journalism and the sphere of the public in the broadcasting building. Based on this research, the new type of relationship envisaged by the project is formulated. Second, the thesis addresses systematic friction between professional journalism and public journalism through the architectural interfaces in a tectonic manner. Subsequently, the synthesis between the logic of the new relationship and the logic of transparency derived from the interfaces is utilized as the foundation for the construction of an institutional building generating optimal alternative journalism.by Jin Kyu Lee.M.Arch

    China's listed companies ::conflicts, governance and regulation /

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    The number of interactions between China's stock markets and markets in other parts of the world continues to grow prodigiously. However, as in many transitional economies, insider control and inefficient law enforcement pose serious problems for the corporate governance of Chinese listed companies. Using a law and economics approach, this book first analyses the types of pervasive misconduct of large shareholders in China's listed companies, and then offers concrete reform proposals toward effective protection of minority shareholders in the interwoven areas of regulation, enforcement, and the judiciary. The author addresses the necessity for recognizing the fiduciary duty of controlling shareholders, for improving voting rights for minority shareholders, for enhancing the disclosure system, and for restricting insider trading and market manipulation
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