In this paper, we study the problem of protecting privacy in recommender systems. We focus on protecting the items rated by users and propose a novel privacy-preserving matrix factorization algorithm. In our algorithm, the user will submit a fake gradient to make the central server not able to distinguish which items are selected by the user. We make the Kullback–Leibler distance between the real and fake gradient distributions to be small thus hard to be distinguished. Using theories and experiments, we (...) show that our algorithm can be reduced to a time-delay SGD, which can be proved to have a good convergence so that the accuracy will not decline. Our algorithm achieves a good tradeoff between the privacy and accuracy. (shrink)

本书所编选的文章,是作者从事伦理学的教学和科研工作40多年来,在伦理道德建设方面潜心研究的成果。大体分为以下几个方面:伦理学基本理论研究、中国传统伦理思想研究、现实道德问题研究等。.

This essay examines the classical Confucian perspective on the topic of happiness through the lens of three Western theories: hedonism, desire satisfaction theory, and objective list theory. My analysis of the two classical texts—the Analects and the Mencius —reveals that three salient aspects of the Confucian conception of happiness, namely ethical pleasure, ethical desire, and moral innocence, play the fundamental role in the guidance and evaluation of an individual’s life. According to Confucius and Mencius, happiness consists primarily not in pleasure, (...) but in ethical pleasure; the good life is not a life in which all or most of one’s desires are fulfilled, but a life in which the satisfaction of prudential desires is subject to the constraint of ethical desire; the source of the greatest happiness lies not in the attainment of the greatest political power, but rather in the cognizance of one’s moral innocence. For classical Confucian thinkers, the relationship between happiness and the good life is that happiness is a critically important constituent of the good life. However, happiness—defined in terms of pleasure, desire satisfaction, or a list of goods—needs to be tempered by moral constraints. In light of their views on happiness and the good life, I conclude that Confucius and Mencius each lived a good life that exemplified the three salient features of happiness, and to that extent they were happy. (shrink)

In recent years, the phenomenological approach to empathy becomes increasingly influential in explaining social perception of other people. Yet, it leaves untouched a related and pivotal question concerning the unique and irreducible intentionality of empathy that constitutes the peculiarity of social perception. In this article, I focus on this problem by drawing upon Husserl’s theory of image-consciousness, and I suggest that empathy is characterized by a “seeing-in” structure. I develop two theses so as to further explicate the seeing-in structure in (...) question: first, empathy as a phenomenologically sui generis act is an intentional fusion of both presentation and re-presentation; and second, empathic intentionality is in essence twofold in that it is at once directed at both the other’s sensuously given body and the other’s non-sensuously given mentality. In this light, I argue that empathy is better conceived as a quasi-perceptual act that is fundamentally different from external perception simpliciter and other complex acts such as signitive, recollective and imaginative intention. (shrink)

The hukou system is a mandatory household registration system in China that assigns an individual either an urban/non-agricultural hukou or a rural/agricultural hukou based on one’s birthplace. This system favors urban residents and discriminates against rural residents in accessing state-owned resources such as employment, education, health care, and housing. To better understand how this institutionally imposed hukou identity impacts an individual’s sense of fairness in the ultimatum game, we conducted a field experiment in China using 9–12-year-old children and collected 672 (...) observations. Subjects played a one-shot ultimatum game to allocate 20 yuan in groups of two. We employed a 2 ×\documentclass[12pt]{minimal} \usepackage{amsmath} \usepackage{wasysym} \usepackage{amsfonts} \usepackage{amssymb} \usepackage{amsbsy} \usepackage{mathrsfs} \usepackage{upgreek} \setlength{\oddsidemargin}{-69pt} \begin{document}$$\times $$\end{document} 2 ×\documentclass[12pt]{minimal} \usepackage{amsmath} \usepackage{wasysym} \usepackage{amsfonts} \usepackage{amssymb} \usepackage{amsbsy} \usepackage{mathrsfs} \usepackage{upgreek} \setlength{\oddsidemargin}{-69pt} \begin{document}$$\times $$\end{document} 2 experiment design and used the strategic method ultimatum game. We primed our subjects with their hukou identity before they made their decisions in the experiment. Results of this study show that hukou salience mainly affects rural hukou subjects, who belong to the perceived less-favored social group. On one hand, when the hukou identity is made salient, rural hukou proposers decrease their amount offered regardless of their responder’s hukou type. On the other hand, rural hukou responders expect higher offers from their urban hukou proposers when the hukou identity is revealed. We interpret these results as that rural hukou subjects tend to seek compensations for their perceived hukou inferiority to achieve fair distributions. (shrink)

In _Shifts of Power: Modern Chinese Thought and Society_, Luo Zhitian explores the causes and consequences of various shifts of power during the transition from imperial to Republican China.

McDowell motivates a disjunctive conception of experience in the context of other-minds skepticism, but his conception of other minds has been less frequently discussed. In this paper, I focus on McDowell’s perceptual account of others that emphasizes the primitivity of others’ bodily expressivity and his defense of a common-sense understanding of others. And I suggest that Husserl’s subtle analysis of bodily expressivity not only bears fundamental similarities with McDowell’s but also helps to demonstrate the sense in which McDowell’s emphasis on (...) bodily expressivity can remove some of the grounds for other minds skepticism. I argue that the other’s behavioral manifestation is first and foremost perceived in a salient Gestalt and social perception is inherently infused with a constitutive propensity with which we normally take the other as human person in the first place. In this light, I show that Husserl’s account can better elucidate human expressivity and its intrinsic features, thereby helping to remove some of the props of other-minds skepticism. As a result, I believe it proves fruitful to juxtapose McDowell’s and Husserl’s account of bodily expressivity, so as to alternate the Cartesian picture of other-minds that engenders skeptic anxiety and to secure a common-sense understanding of other people. (shrink)

Luo Longji was a political scientist who spent seven years studying in England and America, culminating in a Ph.D. from Columbia University in 1928. Together with Hu Shi and Liang Shiqiu, he published a number of articles on human rights in the magazine Xinyue in 1929 and 1930. The present essay stands out as the most theoretically sophisticated of the numerous Xinyue articles. Luo draws on a number of themes and concepts he learned from mentors in the West, most especially (...) from Harold Laski, whose social liberalism Luo found very appealing. Unlike earlier generations of thinkers, Luo rarely engages explicitly with the earlier Chinese tradition; in this he resembles Gao Yihan more than anyone else represented in the present collection. Both saw themselves as engaged with ideas relevant the world over, rather than with China's specific cultural situation. We translate here the first two sections of Luo's article, wherein he sets down his fundamental theoretical position. In the balance of the article, he addresses more specific aspects of human rights in the following sections: "Human Rights and the State," "Human Rights and the Law," "The Temporal and Spatial Characters of Human Rights," and "The Human Rights that We Would Like.". (shrink)

Computer vision is widely used in manufacturing, sports, medical diagnosis, and other fields. In this article, a multifeature fusion error action expression method based on silhouette and optical flow information is proposed to overcome the shortcomings in the effectiveness of a single error action expression method based on the fusion of features for human body error action recognition. We analyse and discuss the human error action recognition method based on the idea of template matching to analyse the key issues that (...) affect the overall expression of the error action sequences, and then, we propose a motion energy model based on the direct motion energy decomposition of the video clips of human error actions in the 3 Deron action sequence space through the filter group. The method can avoid preprocessing operations such as target localization and segmentation; then, we use MET features and combine with SVM to test the human body error database and compare the experimental results obtained by using different feature reduction and classification methods, and the results show that the method has the obvious comparative advantage in the recognition rate and is suitable for other dynamic scenes. (shrink)

Coercive subtyping offers a general approach to subtyping and inheritance by introducing a simple abbreviational mechanism to constructive type theories. In this paper, we study coercion completion in coercive subtyping and prove that the formal extension with coercive subtyping of a type theory such as Martin–Löf's type theory and UTT is a conservative extension. The importance of coherence conditions for the conservativity result is also discussed.

Tagba is a tone language that presents tonal patterns that appear quite regular at first glance. However, these are difficult to model under standard autosegmental hierarchical assumptions regarding the placement of skeleton, segments and tones. In this paper, we will present Tagba tonology and demonstrate that it can be accounted for by readjusting the tiers of hierarchization. From this, we reason that the proposed hierarchy is parametric and language specific.

本书是罗根泽对诸子的哲学研究,包括《古史辨》第四册《诸子丛考》自序;战国前无私家著作说;由《墨子》引经推测儒墨两家与经书之关系;《墨子》探源等内容。.

本书收集了中国伦理学会会长罗国杰教授近20年来发表的著作、文章、书序等共计194 篇。从中,既可以看到罗国杰先生教学、研究的思想脉络,更可以把握改革开放以来我国伦理道德建设和社会主义精神文明建设的大致轨迹。.

In Doing Philosophy Comparatively Tim Connolly has accomplished an admirable feat: the first comprehensive and systematic introduction to comparative philosophy, written in a lucid and accessible style. Although it is designed to be used as a text-book for an introduction to a comparative philosophy course, this excellent volume will prove extremely helpful to anyone who is interested in this area of philosophic pursuit. As a practitioner of comparative philosophy, I benefited from reading this book because it gives a panoramic view (...) of the field, provides answers to some of my questions, and piques my interest. I have been informed and enlightened.The volume is divided into three parts. The first part focuses on... (shrink)

This article proposes an interpretation of the ‘Thesis that Things do not Shift’ (_Wu bu qian lun,_ 物不遷論) of the early Chinese Buddhist philosopher Sengzhao. We understand Sengzhao to be proposing a version of the philosophy of time found in Sarvāstivāda Abhidharma, and then interpreting statements about time from Mahāyāna texts in light of that account. But whatever his limitations as a cross-cultural interpreter, we find Sengzhao surprisingly impressive philosophically, as he proposes a view that is noticeably more advanced towards (...) a modern conception of time than the accounts found in South Asian Buddhist sources. Ironically, his earnest efforts to present his view as falling within the Mahāyāna may have functioned to conceal Sengzhao’s true philosophical achievement. (shrink)

What ultimately is the relationship of the development of scientific technology and the consequent raising of the material level of life to the development of morality? Today, as the realization of the Four Modernizations is accelerated, a thorough examination of this question is highly important and meaningful.

In recent years, the translation of Debray’s writings and the study of his media thoughts have become increasingly popular in China, but the ‘medium’ in his media discourse has never been clarified. Debray pointed out that the focus of the media is ‘mediation’, which actually reveals a new way of thinking and reasoning. He then proposed four stages of mediological reasoning: Message, Medium, Milieu and Mediation. This article believes that based on this framework (i.e. 4M), Debray used McLuhan’s theory as (...) a hub for analysis and launched a set of research methods and tools aimed at exploring the multiple nature of medium and message on the sense of interaction between culture and technology, which also involved the utility of ‘mediasphere’ as an exploration principle to question the past and future of mankind and the media conditions. This approach provides an avenue for us to understand ourselves and transmissions in different space-time categories at both practical and theoretical levels. This article emphasizes that it is better not to interpret Debray’s thoughts as a theory parallel to the existing medium theories because its focus is on research approaches rather than arguments. Besides, although Debray’s medium theory is based on his experience and thinking in Europe and Latin America, there are reasons for the publicity of Debray’s ideology in China. From the perspective of history, culture and human geography, Chinese civilization can be said to contain rich ideological resources of mediation. This is of great significance to re-understand China’s history and reality in the new context of globalization, and to discover the global value of China’s experience. (shrink)

In the formal semantics based on modern type theories, common nouns are interpreted as types, rather than as predicates of entities as in Montague’s semantics. This brings about important advantages in linguistic interpretations but also leads to a limitation of expressive power because there are fewer operations on types as compared with those on predicates. The theory of coercive subtyping adequately extends the modern type theories and, as shown in this paper, plays a very useful role in making type theories (...) more expressive for formal semantics. It not only gives a satisfactory solution to the basic problem of ‘multiple categorisation’ caused by interpreting common nouns as types, but provides a powerful formal framework to model interesting linguistic phenomena such as copredication, whose formal treatment has been found difficult in a Montagovian setting. In particular, we show how to formally introduce dot-types in a type theory with coercive subtyping and study some type-theoretic constructs that provide useful representational tools for reference transfers and multiple word meanings in formal lexical semantics. (shrink)

In this paper we present a study of adjectival/adverbial modification using modern type theories, i.e. type theories within the tradition of Martin-Löf. We present an account of various issues concerning adjectival/adverbial modification and argue that MTTs can be used as an adequate language for interpreting NL semantics. MTTs are not only expressive enough to deal with a range of modification phenomena, but are furthermore well-suited to perform reasoning tasks that can be easily implemented given their proof-theoretic nature. In MTT-semantics, common (...) nouns are interpreted as types rather than predicates. Therefore, in order to capture the semantics of adjectives adequately, one needs to meet the challenge of modeling CNs modified by adjectives as types. To explicate that this can be done successfully, we first look at the mainstream classification of adjectives, i.e. intersective, subsective and non-subsective adjectives. There, we show that the rich type structure available in MTTs, along with a suitable subtyping framework, offers an adequate mechanism to model these cases. In particular, this modelling naturally takes care of the characterising inferences associated with each class of adjectives. Then, more advanced issues on adjectival modification are discussed: degree adjectives, comparatives and multidimensional adjectives. There, it is shown that the use of indexed types can be usefully applied in order to deal with these cases. In the same vein, the issue of adverbial modification is discussed. We study two general typings for sentence and VP adverbs respectively. It is shown that the rich type structure in MTTs further provides useful organisational mechanisms in giving formal semantics for adverbs. In particular, we discuss the use of \-types to capture the veridicality/non-veridicality distinction and further discuss cases of intensional adverbs using the type theoretic notion of context. We also look at manner, subject and speech act adverbials and propose solutions using MTTs. Finally, we show that the current proof technology can help mechanically check the associated inferences. A number of our proposals concerning adjectival and adverbial modification have been formalised in the proof assistant Coq and many of the associated inference patterns are checked to be correctly captured. (shrink)

We consider, in the context of an MS-algebra L, the ideals I of L that are kernels of L. We characterize two kinds of de Morgan algebras: the class Boolean algebras and the absolutely indecomposable de Morgan algebras. We show that all the e-ideals I of L are kernel ideals of L if and only if the subalgebra \ of L can only be these two kinds of de Morgan algebras.

Many studies in Western societies show a pattern of discriminative grandparental investment as follows: maternal grandmothers (MGMs) > maternal grandfathers (MGFs) > paternal grandmothers (PGMs) > paternal grandfathers (PGFs). This pattern is in line with the expectation from evolutionary reasoning. Yet whether or not this pattern applies in China is in question. The present study was based on a questionnaire survey at a university in Central China (N = 1,195). Results show that (1) when grandparent–grandchild residential distance during grandchildren’s childhood (...) is controlled, in the case of grandsons and granddaughters as a whole and granddaughters only, both grandparental caregiving and grandchildren’s emotional closeness to grandparents display a rank order of MGM > MGF > PGM > PGF, but in the case of grandsons only, this order is not statistically significant. (2) There are stable relationships between grandparental caregiving/grandchildren’s emotional closeness and residential distance/similarity in appearance. (3) The effects of residential distance on either PGFs’ or PGMs’ caregiving exceed those on either MGFs’ or MGMs’. (4) The PGF and PGM prefer grandsons to granddaughters in their caregiving, whereas the MGF and MGM do not have a sex preference, and (5) the fact that the PGF and PGM invest more in grandsons than in granddaughters does not depend on grandsons’ duration of living in a rural area. Our results suggest that (1) in general, the Chinese display a pattern of differential grandparental investment predicted by an evolutionary perspective, (2) the evolutionary perspective that combines the two factors of paternal uncertainty and sex-specific reproductive strategies is applicable to grandparental investment in China, and (3) the traditional son-preference culture also plays some role in affecting grandparental investment in China, though the roles of culture and urban–rural cultural difference should not be exaggerated. (shrink)

Résumé: Après la promulgation de la loi sur le mariage de la République populaire de Chine en 1950, les œuvres littéraires dérivées du besoin de publicité ont des implications politiques et une signification disciplinaire distinctes. Parce que le problème du divorce a la rationalité des “droits libres” et la sensibilité de l’agitation sociale, le récit du “divorce” à cette époque se situe dans une certaine mesure entre la politique et la réalité. D’une part, les œuvres littéraires doivent promouvoir positivement le (...) concept juridique de “liberté de divorce” et, d’autre part, elles doivent être soumises à un traitement narratif insensible. Les récits de divorce sont donc vagues et capricieux. Toutefois, la littérature a comblé dans une certaine mesure le fossé entre la loi et la réalité en réimaginant les problèmes réels causés par le divorce. (shrink)

It is well-known that Husserl denies bodily behaviour as expressive in the I. Logical Investigation but he dramatically changes his view and holds that bodily behaviour is essentially expressive in...