Reinforcement learning has recently received much attention as a learning method for complicated systems, e.g., robot systems. It does not need prior knowledge and has higher capability of reactive and adaptive behaviors. However increase in dimensionality of the action-state space makes it diffcult to accomplish learning. The applicability of the existing reinforcement learning algorithms are effective for simple tasks with relatively small action-state space. In this paper, we propose a new reinforcement learning algorithm: “Q-learning with Dynamic Structuring of Exploration Space (...) Based on Genetic Algorithm ”. The algorithm is applicable to systems with high dimensional action and interior state spaces, for example a robot with many redundant degrees of freedom. To demonstrate the effectiveness of the proposed algorithm simulations of obstacle avoidance by a 50 links manipulator have been carried out. It is shown that effective behavior can be learned by using the proposed algorithm. (shrink)

This article considers the implications of the early development of London Zoo. It gives insight into the differences between the ideal image of the zoo, the real situation under which the zoo was managed, and popular perceptions of the zoo. The discussion explores three areas: the heterogeneous audience of the zoo, the aestheticization of the zoo and its animal displays, and the pedagogy of observing nonhuman animals in the zoo. The zoo's ideals confronted various difficulties, while the pedagogy of zoo (...) visits, which developed within a frame of natural theology, was subject to various applications. The article argues that these differences were not evidence of the zoo's failure to consolidate its ideological backbone in Victorian society. It concludes that such divergence characterized the zoo's unique capacity both to evoke and to receive competing ideals, anxieties and criticism. (shrink)

Reinforcement learning is very effective for robot learning. Because it does not need priori knowledge and has higher capability of reactive and adaptive behaviors. In our previous works, we proposed new reinforcement learning algorithm: “Q-learning with Dynamic Structuring of Exploration Space Based on Genetic Algorithm (QDSEGA)”. It is designed for complicated systems with large action-state space like a robot with many redundant degrees of freedom. And we applied it to 50 link manipulator and effective behavior is acquired. However optimality and (...) fault tolerance of the proposed algorithm were not considered and to demonstrate effectiveness of the proposed algorithm other applications are necessary. Acquiring of locomotion patterns by a multi-legged robot is a very interesting problem. As it has many redundant degrees of freedom, application of usual reinforcement learning is difficult and an optimal locomotion has not been acquired using previous reinforcement learning algorithm. And the redundancy of the robot is effective to the fault tolerance and various locomotion patterns can be acquired for adapting the faults of the legs. In this paper, we applied QDSEGA to acquiring of locomotion pattern by the multi-legged robot and considered the optimality and fault tolerance. Effective behavior has been obtained by using our proposed algorithm. (shrink)

This study investigated the circumstances and problems that departments of forensic medicine encounter with bereaved families regarding samples obtained from medico-legal autopsies. A questionnaire was posted to all 76 departments of forensic medicine performing medico-legal autopsies in Japan, and responses were received from 48 . Of the respondents, 12.8% had approached and communicated with bereaved families about collecting samples from the deceased person during an autopsy and the storage of the samples. In addition, 23.4% of these had informed families that (...) samples might be used in research. Eighteen departments had received enquiries and requests from families about the samples, with most requests concerning their return. The response to such requests varied according to the department. Few departments interacted with the bereaved families regarding the procedure for obtaining autopsy samples, and their methods for handling family concerns differed depending on the person within the department authorised to contact the family. Moreover, the procedures for engaging in such communication have long been unclear, and no legal or ethical consensus or agreement with the general public has been established. It is important for researchers to further discuss the correct way for forensic medicine departments to communicate with bereaved families. (shrink)

KM (Knowledge Management) systems have recently been adopted within the realm of enterprise management. On the other hand, data mining technology is widely acknowledged within Information systems' R&D Divisions. Specially, acquisition of meaningful information from Web usage data has become one of the most exciting eras. In this paper, we employ a Web based KM system and propose a framework for applying Web Usage Mining technology to KM data. As it turns out, task duration varies according to different user operations (...) such as referencing a table-of-contents page, down-loading a target file, and writing to a bulletin board. This in turn makes it possible to easily predict the purpose of the user's task. By taking these observations into account, we segmented access log data manually. These results were compared with results abstained by applying the constant interval method. Next, we obtained a segmentation rule of Web access logs by applying a machine-learning algorithm to manually segmented access logs as training data. Then, the newly obtained segmentation rule was compared with other known methods including the time interval method by evaluating their segmentation results in terms of recall and precision rates and it was shown that our rule attained the best results in both measures. Furthermore, the segmented data were fed to an association rule miner and the obtained association rules were utilized to modify the Web structure. (shrink)

Die neuere Naturwissenschaft trat im 17. Jahrhundert zuerst als “Physik” auf. Man soll sich an die Gründung der modernen Dynamik von Galileo und Newton erinnern.Die methodisch-allgemeine Grundlegung dieser neuen Wissenschaft wird in der Cartesischen Philosophie am klarsten ausgedrückt.

Drawing on theories of institutional evolution, this article contends that despite the centrality of occupationally based social insurance in postwar Korea and Taiwan, the welfare state has in fact deepened considerably. The analysis is structured around three distinct eras of social policy reform in Korea and Taiwan: the developmental state, democratic transition, and postindustrialism. The authors contend that during each of these eras, the institutional purposes of social policy were altered to meet certain socioeconomic objectives. New institutional purposes were grafted (...) onto the prevailing social insurance model, changing the outcomes of social policy. The developmental state era was productivist in purpose, democratic reform during the 1980s reoriented social insurance toward universalist and redistributive principles, and the post-1997 era refocused social insurance to meet the imperatives of flexible labor markets, demographic shifts, and economic globalization. (shrink)

Intelligent humanoid robots (IHRs) are becoming likely to be integrated into nursing practice. However, a proper integration of IHRs requires a detailed description and explanation of their essential capabilities, particularly regarding their competencies in replicating and portraying emotive functions such as empathy. Existing humanoid robots can exhibit rudimentary forms of empathy; as these machines slowly become commonplace in healthcare settings, they will be expected to express empathy as a natural function, rather than merely to portray artificial empathy as a replication (...) of human empathy. This article works with a twofold purpose: firstly, to consider the impact of artificial empathy in nursing and, secondly, to describe the influence of Affective Developmental Robotics (ADR) in anticipation of the empathic behaviour presented by artificial humanoid robots. The ADR has demonstrated that it can be one means by which humanoid nurse robots can achieve expressions of more relatable artificial empathy. This will be one of the vital models for intelligent humanoid robots currently in nurse robot development for the healthcare industry. A discussion of IHRs demonstrating artificial empathy is critical to nursing practice today, particularly in healthcare settings dense with technology. (shrink)

Il s’agit d’une comparaison entre la pensée occidentale et la pensée orientale, à travers l’étude de différents concepts. La thèse de l’auteur est de prouver que l’esthétique comme philosophie morale et l’esthétique comme métaphysique du beau doivent être l’expression d’une axiologie transcendante.— This text is a comparison between Western thought and Eastern thought through the study of different concepts. The author’s thesis is to prove that aesthetics as a moral philosophy and aesthetics as a metaphysics of the beautiful have to (...) be the expression of a transcendental axiology. (shrink)

This book discusses the new field of eco-ethica, explores issues arising from a technology-mediated environment and our changing moral consciousness, and presents an ethics that transcends interpersonal ethics so as to also encompass companies and governments.

The numbers of unfortunate deaths in the twentieth century were the highest compared with any previous century. Such an increase obviates any excuses The idea of technological possibility itself is one of the most basic causes of the destruction of nature in our new human milieu today, the technological conjuncture. But we human beings are also a part of nature. Therefore, without a new ethics understood as eco-ethica nature itself cannot fulfill the necessary conditions for the survival of human beings. (...) For the first time owing to the technological conjuncture human beings bear full responsibility for all human beings tomorrow, for the future of humanity. Nature is no longer just a means to be exploited for the development of human civilization but also a model for how human civilization is to survive. The two great humanistic traditions, Western and Eastern, have developed the same content at the same level. People in the two worlds are really preparing a new cosmopolitanism. (shrink)

In this article we compare Fine’s theory of arbitrary objects with the theory of variables that Russell formulated in his Principles of Mathematics. We argue that Russell’s early theory of variables can be seen as a prefiguration of Fine’s theory of arbitrary objects. The main difference between Russell’s theory and Fine’s account lies in their account of dependence relations between variables. Fine develops a stable view of dependence between arbitrary objects, whereas no such view is presented in Principles of Mathematics. (...) We then sketch how Russell developed the notion of dependence between arbitrary objects in some of his subsequent works. (shrink)

Humans can pronounce a nonword. Some researchers have interpreted this behavior as requiring a sequential mechanism by which a grapheme-phoneme correspondence rule is applied to each grapheme in turn. However, several parallel-distributed processing models in English have simulated human nonword reading accuracy without a sequential mechanism. Interestingly, the Japanese psycholinguistic literature went partly in the same direction, but it has since concluded that a sequential parsing mechanism is required to reproduce human nonword reading accuracy. In this study, by manipulating the (...) list composition, we demonstrated that past psycholinguistic studies in Japanese have overestimated human nonword reading accuracy. When the more fairly reevaluated human performance was targeted, a newly implemented Japanese PDP model simulated the target accuracy as well as the error patterns. These findings suggest that PDP models are a more parsimonious way of explaining reading across various languages. (shrink)