In the performing arts, such as music and dance performances, people actively interact with each other and show their exciting performances. Some studies have proposed that this interaction is a social origin of the performing arts. Some have further investigated this phenomenon based on the synchronization and coordination theory. Though the majority of these studies have focused on the collaborative context, several genres of the performing arts, such as jazz sessions and breakdance battles, have a competitive context. Several studies have (...) suggested that, in this competitive context, performers actively interact with each other and construct some correspondence. Moreover, a few recent studies focusing on competitive conversations, such as debates, have shown that, compared to people's interactions in collaborative conversations, people in competitive contexts frequently coordinate their behaviors in complicated ways. However, the interaction and coordination among performers in these competitive contexts have not been sufficiently investigated. Therefore, we investigated the coordination of expert breakdancers in battle scenes and measured their rhythmic movements using a motion capture system. We calculated the relative phase of the rhythmic movements between two dancers to investigate their coordination. The results showed that the dancers' rhythmic movements tended to synchronize in an anti-phase fashion, which means that there were similarities as well as differences between the two dancers' rhythmic movements. Furthermore, this pattern of coordination changed dynamically as time elapsed, from an in-phase synchronization or leader-follower relationships to an anti-phase synchronization and then leader-follower relationships. (shrink)

This introduction to Tanabe Hajime (1885-1962), the critical successor of the "father of contemporary Japanese philosophy" Nishida Kitaro (1870-1945), focuses on Hajime's central philosophical ideas and perspective on "self," "world," "knowledge," and the "purpose of philosophizing". Exploring his notable philosophical ideas including the logic of species, metanoetics, and philosophy of death, it addresses his life-long study of the history of Western philosophy. It sets out his belief that Western framework of thinking is incapable of giving sufficient answers to the philosophical (...) questions concerning the self and the world together and discusses the central ideas he developed while working in Eastern traditions such as Confucianism and Daoism. Featuring comprehensive further reading lists, discussion questions and teaching notes, this is an ideal introductory guide to Tanabe Hajime suitable for anyone interested in Japanese and World philosophy, as well as the development of the Kyoto School. (shrink)

This book brings together the work of two significant figures in contemporary philosophy. By considering the work of Tanabe Hajime, the Japanese philosopher of the Kyoto School, and William Desmond, the contemporary Irish philosopher, Takeshi Morisato offers a clear presentation of contemporary comparative solutions to the problems of the philosophy of religion. Importantly, this is the first book-length English-language study of Tanabe Hajime's philosophy of religion that consults the original Japanese texts. Considering the examples of Christianity and Buddhism, Faith (...) and Reason in Continental and Japanese Philosophy focuses on finding the solution to the problem of philosophy of religion through comparative examinations of Tanabe's metanoetics and Desmond's metaxology. It aims to conclude that these contemporary thinkers -- while they draw their inspiration from the different religious traditions of Christianity and Mahayana Buddhism -- successfully reconfigure the relation of faith and reason. Faith and Reason in Continental and Japanese Philosophy marks an important intervention into comparative philosophy by bringing into dialogue these thinkers, both major figures within their respective traditions yet rarely discussed in tandem. (shrink)

Kant's concept of sensuality, one of the revolutionary innovations of his philosophy, is anything but self-evident. It was however not recognized as a problem until it had been established how its specific aspects differ from the customary linguistic usage and the use of the term in the 18th century. The analysis of sources from the history of concepts which have hardly been considered up to now, the discussion of specific problems connected to Kant's language regulation and the examination of the (...) Latin source material show that there is a need for the revision of certain aspects. This applies not only to the history of the term sensuality but also to the lexicography which has been corrected and supplemented. In addition to the information for the history of aesthetics, this work makes an important contribution to determining the correct date of Kant's handwritten reflections. Kants Verstandnis von Sinnlichkeit, eine der umsturzenden Neuerungen seiner Philosophie, ist alles andere als selbstverstandlich. Als Problem erkennbar wird es jedoch erst dann, wenn herausgearbeitet wird, wie sich seine spezifischen Momente von dem im 18. Jahrhundert ublichen Sprach- und Begriffsgebrauch unterscheiden. Die Analyse von begriffsgeschichtlich bisher kaum berucksichtigten Quellen, die Erorterung der Sachprobleme, die mit der wohluberlegten Sprachregelung Kants verbunden sind, und die Untersuchung der lateinischen Vorlagen ergeben manchen Revisionsbedarf. Betroffen sind sowohl die Geschichte des Begriffs der 'Sinnlichkeit', als auch die Lexikographie, die korrigiert und erganzt wird. Neben Aufschlussen fur die Geschichte der deutschen Asthetik leistet die Arbeit einen wichtigen Beitrag zur richtigen Datierung von Kants handschriftlichen Reflexionen aus dem Nachlass. (shrink)

武士道の代表的書とされる『葉隠』が世に広まったのは太平洋戦争直前、「忠臣蔵」はサラリーマン化した武士への庶民の面当て、卑怯な考えとして『孫子』を忌避した新井白石、殉死は江戸時代初期の異常現象―。太平記 、甲陽軍艦といった古典から橋川文三、三島由紀夫まで、武士道がいかに歪曲・誤解されてきたのかを様々なエピソードを交えて解説する、思いもよらぬ事実が満載の本。.

In this translation of his 1936 essay, Tosaka Jun critically examines Tanabe Hajime’s “logic of species,” paying particular attention to its basis, i.e. the logic of “absolute mediation” that Tanabe had devised earlier. In 1936, the logic of species had only been developed within a few texts, including “The Logic of Social Being” (1934–5) and “The Logic of Species and the World Schema” (1935). Interestingly enough, Tosaka agrees to a certain extent with Tanabe’s criticism of the “logic of nothingness” lying (...) at the bottom of Nishida Kitaro’s philosophy, according to which criticism the place of nothingness represents a mystical immediacy. Tosaka, however, also criticizes Tanabe’s own position, claiming that his idea of absolute mediation, in which all immediacies are mediated, leads to a logical absolutism neglecting the materiality of nature. Tosaka claims that the temporal relationship between the mediator and the mediated should be addressed in terms of a “chronology” in which nature exists prior to the subject. Not only Tosaka’s immanent criticism of Tanabe contributed to the development of the “Kyoto School” (an expression Tosaka invented himself in 1932), but the question of “chronology,” with regard to mediation, has a modern theoretical significance as a point of contention in the contemporary debate between realism and constructivism. (shrink)

The purpose of this study is to investigate the relationship between a firm’s strategy and consumers’ decisions in the presence of the paradox of choice and sharing personal information. The paradox of choice implies that having too many choices does not necessarily ensure happiness and sometimes having less is more. A new model is constructed introducing a factor of information sharing into the model of a previous study that embedded the paradox of choice only (Kinjo and Ebina in AI Soc (...) 30(2):291–297, 2015). A key feature of the model is its disutility function. It is demonstrated that if the sign of the cross derivative of the function is positive (negative) at the optimum, there is a positive (negative) correlation between the degree of sharing personal information chosen by the consumers and the number of products offered by the firm in its recommendation systems. It is also numerically indicated that the profit function of the firm becomes convex or concave depending on the shape of the disutility function. These results suggest that firms should carefully investigate the shape of the disutility function, under the paradox of choice and sharing personal information. (shrink)

Shōwashi e no renketsu -- Higashi Ajia kara no me -- Tennō to iu jiba -- Watashi no kaikōki -- Jikokuhyō katate ni ekisoba o.

本書は、2013年4月1日から2015年3月31日までの2年間、『みすず』誌に連載された「日記」を一書にしたものである。大学人としての仕事や作家として執筆に追われながら、政治学者として世の動向を分析し 、皇室の動きを観察し、鉄道旅行をする。日常から時代を解読する試み。.

One most common problem in reinforcement learning systems (e.g. Q-learning) is to reduce the number of trials to converge to an optimal policy. As one of the solution to the problem, k-certainty exploration method was proposed. Miyazaki reported that this method could determine an optimal policy faster than Q-learning in Markov decision processes (MDPs). This method is very efficient learning method. But, we propose an improvement plan that makes this method more efficient. In k-certainty exploration method, in case there is (...) no k-uncertainty rule (rules which aren’t selected more than k times) in current state, an agent sometimes walks randomly until it finds a state where it can select a k-uncertainty rule. We think that this behavior is not efficient. To reduce this useless behavior, we propose combining k-certainty exploration method with Dynamic programming (DP). Miyazaki’s system uses DP after all rules are executed at least k times. But, our method uses k-certainty exploration method along with DP during learning. Our method, takes two pattern actions. In case an agent can select k-uncertainty rules, one of these rules is selected at random as k-certainty exploration method. In another case there is no k-uncertainty rule, behavior of agent is different from the behavior of k-certainty exploration method. In that case, our method uses DP to compute an optimal policy for moving from a current state to a state in which some k-uncertainty rules remain. The model for DP is constructed by using only known states. The outline will be described below. First, an agent makes a map constructed by using only known states. In the map, goals are states in which there are k-uncertainty rules and arbitrary state values are set in these states. Point to which attention should be paid is that the map is not given from outside. It is made from only experience. Next, each state values of states in which there are only k-certainty rules in the map are computed by DP (we used Policy Iteration). Finally, an agent continues to select greedy action until it arrives at a state in which it can select a k-uncertainty rule. By this improvement, we expect it can determine an optimal policy faster than k-certainty exploration method. And we have verified that our exploration method can determine an optimal policy faster than k-certainty exploration method by computer simulation. (shrink)

幕末の危機に際して、優れた国家戦略を構想した会沢正志斎。尊王攘夷を唱えつつ、抜本的な内政改革を訴えた彼の『新論』はけっして無謀な排外主義ではなかった。むしろそのプラグマティックで健全なナショナリズムに 学ぶべきところは大きい。正志斎の思想の秘められたルーツを伊藤仁斎、荻生徂徠の古学に探り、やがてその実学の精神が福沢諭吉の戦略思想に引き継がれていることを解明。隠された思想の系譜を掘り起こし、現代日本人 が求めてやまない国家戦略の封印を解き放つ。.

この国の人々は選択的に外の思想を受け入れつつ、あるべき人間とは何かという問いを立ててきた。ではその根底にあるものは何だろうか。思想史を俯瞰してそれを探るには、日本の内と外の両側から眺める視点が必要であ る。そしてそのような内と外の意識こそ、古代からこの国で綿々と受け継がれてきたものだ。神話時代から現在までの各時代の思想に、外部的視点からの解釈を押し通すのではなく、内在的視点をもって丹念に光を当てる。 一人の思想史家による、初めての本格通史。.

The purpose of our study is to investigate the effects of the number of products, product attributes, and prices on consumer confusion, conduct a numerical analysis to check the robustness of the results, and present an example of the cell phone market in Japan. Following an ideal point model and embedding the number of products and product attributes, we clarify how these factors affect consumer confusion and purchase probability. We show that as the number of product attributes increases, the choice (...) probability of each product becomes equal, implying that consumer confusion occurs. This result is robust to the introduction of prices as strategic variables. (shrink)

宇宙はなぜ“果てない”のか、ヒトはなぜ“考える”のか、微生物はなぜ“小さい”のか―分野を横断し、時制を越境して、生きものの可能性をラディカルに照らす、生物学界の「風雲児」長沼毅の集大成。.

私たちにとって歴史とは何か。改めて歴史意識を取り戻すため、橋川文三を今、とらえ、読むための入門書。.

Presentism is usually understood as the thesis that only the present exists whereas the rival theory of eternalism is usually understood as the thesis that past, present, and future things are all equally real. The significance of this debate has been threatened by the so-called triviality objection, which allegedly shows that the presentist thesis is either trivially true or obviously false: Presentism is trivially true if it is read as saying that everything that exists now is present, and it is (...) obviously false if read as saying that everything that has existed, exits or will exist is present. If eternalism is taken as the negation of presentism, it is also either trivially false or obviously true. In this paper, I try to respond to the triviality objection on behalf of presentism. In second section, I will examine how the argument proceeds. In third section, I will reflect on three possible ways to respond but will argue that none of them succeeds in giving a satisfactory solution. I will then try to clarify the core idea of presentism and to suggest that if we characterise presentism accurately, the problem will disappear. In fourth section, I will offer a plausible definition of presentism and will show how it can avoid the triviality objection and demonstrate why it is advantageous to accept the version of presentism I offer. (shrink)

Reading “The Tale of Genji”: Sources from the First Millennium. Edited by Thomas Harper and Haruo Shirane. New York: Columbia University Press, 2015. Pp. xx + 610. $65.