To apply reinforcement learning to difficult classes such as real-environment learning, we need to use a method robust to perceptual aliasing problem. The exploitation-oriented methods such as Profit Sharing can deal with the perceptual aliasing problem to a certain extent. However, when the agent needs to select different actions at the same sensory input, the learning efficiency worsens. To overcome the problem, several state partition methods using history information of state-action pairs are proposed. These methods try to convert a POMDP (...) environment into an MDP environment, and thus they are sometimes very useful. However, their computation cost is very high especially in large state spaces. In contrast, memory-less approaches try to escape from the aliased states by outputting actions stochastically. However, these methods output actions stochastically even in unaliased states, and thus the learning efficiency is bad. If we desire to guarantee the rationality in POMDPs, it is efficient to output actions stochastically only in the aliased states and to output one action deterministically in the other unaliased states. Hence, to discriminate between aliased states and unaliased states, the utilization of χ² -goodness-of-fit test is proposed by Miyazaki et al. They point out that, in aliased states, the distributions of the state transitions by random search and a particular policy are different. This difference doesn't occur owing to non-deterministic actions. Hence, if the agent can collect enough samples to implement the test, the agent can distinguish between aliased states and unaliased states well. However, such a test needs a large amount of data, and it's a problem how the agent collects samples without worsening learning efficiency. If the agent uses random search in the course of learning, the learning efficiency worsens especially in unaliased states. Therefore, in this research, we propose a new method called Extended On-line Profit Sharing with Judgement (EOPSwJ) to detect important incomplete perception, which doesn't need large computation cost and numerous samples. We use two criterions for detecting important incomplete perceptions to attain a task. One is the rate of transitions to each state, and the other is the deterministic rate of actions. We confirm the availability of EOPSwJ using two simulations. (shrink)

Everyday aesthetic experiences and concerns occupy a large part of our aesthetic life. However, because of their prevalence and mundane nature, we tend not to pay much attention to them, let alone examine their significance. Western aesthetic theories of the past few centuries also neglect everyday aesthetics because of their almost exclusive emphasis on art. In a ground-breaking new study, Yuriko Saito provides a detailed investigation into our everyday aesthetic experiences, and reveals how our everyday aesthetic tastes and judgments (...) can exert a powerful influence on the state of the world and our quality of life. By analysing a wide range of examples from our aesthetic interactions with nature, the environment, everyday objects, and Japanese culture, Saito illustrates the complex nature of seemingly simple and innocuous aesthetic responses. She discusses the inadequacy of art-centered aesthetics, the aesthetic appreciation of the distinctive characters of objects or phenomena, responses to various manifestations of transience, and the aesthetic expression of moral values; and she examines the moral, political, existential, and environmental implications of these and other issues. (shrink)

Recently we proposed the linguistic Copenhagen interpretation of quantum mechanics, which is called quantum language or measurement theory. This theory is valid for both quantum and classical systems. Thus, we think that quantum language is one of the most powerful scientific theories, like statistics, and thus, it is the scientific completion (i.e., the destination) of dualistic idealism. If so, we can introduce the concept “progress” in the dualistic idealism. For example, we can assert that [Plato → Descartes → Kant → (...) Wittgenstein → quantum language], where [“X” → “Y”] means that “Y” is more like quantum language than “X”. In this paper, we will study the problem of universals from the perspective of quantum language (i.e., from the scientific perspective of ignoring any religious perspective). And we can be confident of the progress of both of the two time series [Plato → Anselmus → Thomas Aquinas → quantum language] and [Descartes → Thomas Aquinas → quantum language] in dualistic idealism. The reader may find it surprising that Scholastic philosophy is more scientific than Cartesian-Kantian philosophy. However, this is because Descartes gave up the pursuit of “universals” and presented dualism as a visible “mind-matter dualism” so that it could be familiar to the general public. This made the Cartesian-Kantian philosophy socially successful, but unscientific. The problem of universals has not always been clear in the long history of philosophy. The reader should be convinced that the reason is that the problem of universals has been discussed in an incomplete non-scientific dualism to this day. (shrink)

Yuriko Saito, the leading figure in the field, explores the nature and significance of the aesthetic dimensions of people's everyday lives. She argues that everyday aesthetics can be an effective instrument for directing humanity's collective and cumulative world-making project.

Neglect of everyday aesthetics -- Significance of everyday aesthetics -- Aesthetics of distinctive characteristics and ambience -- Everyday aesthetic qualities and transience -- Moral-aesthetic judgments of artifacts.

Recently we proposed "quantum language" (or, the linguistic Copenhagen interpretation of quantum mechanics"), which was not only characterized as the metaphysical and linguistic turn of quantum mechanics but also the linguistic turn of Descartes=Kant epistemology. We believe that quantum language is the language to describe science, which is the final goal of dualistic idealism. Hence there is a reason to want to clarify, from the quantum linguistic point of view, the following problems: "brain in a vat argument", "the Cogito proposition", (...) "five-minute hypothesis", "only the present exists", "Copernican revolution", "McTaggart's paradox", and so on. In this paper, these will be discussed and clarified in quantum language. That is, these are not in quantum language. Also we emphasize that Leibniz's relationalism in Leibniz-Clarke correspondence is regarded as one of the most important parts of the linguistic Copenhagen interpretation of quantum mechanics. This paper is the revised version of the paper: Open Journal of Philosophy, 2018 Vol.8, No.5, 466-480). (shrink)

I propose that the appropriate appreciation of nature must include the moral capacity for acknowledging the reality of nature apart from humans and the sensitivity for listening to its own story. I argue that appreciating nature exclusively as design is inappropriate to the extent that we impose upon nature a preconceived artistic standard as well as appreciation based upon historical/cultural/literary associationsinsofar as we treat nature as a background of our own story. In contrast, aesthetic appreciation informed by our attempt to (...) make sense of nature, such as science, mythology, and folklore, is appropriate because it guides our experience toward understanding nature’s own story embodied in its sensuous surface. (shrink)

如来蔵思想、法華経、中観、唯識、日本仏教等、仏教思想の様々な問題に関する批判的研究23編(和文15編、英文8編)を収録。.

We propose a novel algorithm to transliterate English to Japanese and its application to a voice controlled browser, which enable ordinary Japanese people to browse English Web site by voice. Speech recognition software designed for native English speakers do not work for most Japanese because Japanese can't pronounce English as native English speakers do. Therefore, we combined Japanese speech recognition software with English-to-Japanese transliteration software. The accuracy of our transliteration algorithm is 80% recall for the top candidate, and 92% recall (...) for the top three candidates. The browser using this transliteration algorithm makes it possible for Japanese to navigate English Web pages almost as accurate as Japanese pages by voice commands. (shrink)

Recently, many opportunities have emerged to use the Internet in daily life and classrooms. However, with the growth of the World Wide Web (Web), it is becoming increasingly difficult to find target information on the Internet. In this study, we explore a method for developing the ability of users in information seeking on the Web and construct a search process feedback system supporting reflective activities of information seeking on the Web. Reflection is defined as a cognitive activity for monitoring, evaluating, (...) and modifying one's thinking and process. In the field of learning science, many researchers have investigated reflective activities that facilitate learners' problem solving and deep understanding. The characteristics of this system are: (1) to show learners' search processes on the Web as described, based on a cognitive schema, and (2) to prompt learners to reflect on their search processes. We expect that users of this system can reflect on their search processes by receiving information on their own search processes provided by the system, and that these types of reflective activity helps them to deepen their understanding of information seeking activities. We have conducted an experiment to investigate the effects of our system. The experimental results confirmed that (1) the system actually facilitated the learners' reflective activities by providing process visualization and prompts, and (2) the learners who reflected on their search processes more actively understood their own search processes more deeply. (shrink)

A sense of agency (SoA) is the experience of subjective awareness regarding the control of one’s actions. Humans have a natural tendency to generate prediction models of the environment and adapt their models according to changes in the environment. The SoA is associated with the degree of the adaptation of the prediction models, e.g., insufficient adaptation causes low predictability and lowers the SoA over the environment. Thus, identifying the mechanisms behind the adaptation process of a prediction model related to the (...) SoA is essential for understanding the generative process of the SoA. In the first half of the current study, we constructed a mathematical model in which the SoA represents a likelihood value for a given observation (sensory feedback) in a prediction model of the environment and in which the prediction model is updated according to the likelihood value. From our mathematical model, we theoretically derived a testable hypothesis that the prediction model is updated according to a Bayesian rule or a stochastic gradient. In the second half of our study, we focused on the experimental examination of this hypothesis. In our experiment, human subjects were repeatedly asked to observe a moving square on a computer screen and press a button after a beep sound. The button press resulted in an abrupt jump of the moving square on the screen. Experiencing the various stochastic time intervals between the action execution button-press) and the consequent event square jumping caused gradual changes in the subjects' degree of their SoA. By comparing the above theoretical hypothesis with the experimental results, we concluded that the update (adaptation) rule of the prediction model based on the SoA is better described by a Bayesian update than by a stochastic gradient descent. (shrink)

In the name of efficiency, the practice of education has come to be dominated by neoliberal ideology and procedures of standardization and quantification. Such attempts to make all aspects of practice transparent and subject to systematic accounting lack sensitivity to the invisible and the silent, to something in the human condition that cannot readily be expressed in an either-or form. Seeking alternatives to such trends, Saito reads Dewey’s idea of progressive education through the lens of Emersonian moral perfectionism (to (...) borrow a term coined by Stanley Cavell). She elucidates a spiritual and aesthetic dimension to Dewey’s notion of growth, one considerably richer than what Dewey alone presents in his typically scientific terminology. (shrink)

This article examines the underexplored relationship between Amartya Sen's ‘capability approach’ to human well-being and education. Two roles which education might play in relation to the development of capacities are given particular attention: (i) the enhancement of capacities and opportunities and (ii) the development of judgement in relation to the appropriate exercise of capacities.

This book takes Stanley Cavell's much-quoted, yet enigmatic phrase as the provocation for a series of explorations into themes of education that run throughout his work - through his response to Wittgenstein, Austin and ordinary language ...

This paper presents an explanation for the breakdown of dominant party systems. In contrast to previous works that examine how ruling parties lose their dominant position as a result of interparty competition, this paper focuses on how they are undermined from within by factional conflict. Through an overview of dominant party systems in the postwar world, we show that most of the ruling parties suffered from major splits that significantly reduced their electoral strengths before their final electoral defeat. In order (...) to explain why large groups of politicians decide to leave dominant parties that are likely to remain in power, we develop simple game-theoretic models of intraparty bargaining between party factions over the distribution of benefits from office. Our results suggest two mechanisms through which dominant parties break up. First, factional defections from dominant parties are likely to occur when they are experiencing a significant decline in public support. Second, factional defections are likely to occur when a non-mainstream faction is rapidly losing its bargaining power against the party leadership. Importantly, our results show that under certain conditions, dominant parties will break up even when their electoral prospects are much better than the opposition. We briefly discuss how these mechanisms can be applied to actual cases of dominant party systems. (shrink)

This article examines historical transformations of Japanese collective memory of the atomic bombing of Hiroshima by utilizing a theoretical framework that combines a model of reiterated problem solving and a theory of cultural trauma. I illustrate how the event of the nuclear fallout in March 1954 allowed actors to consolidate previously fragmented commemorative practices into a master frame to define the postwar Japanese identity in terms of transnational commemoration of "Hiroshima." I also show that nationalization of trauma of "Hiroshima" involved (...) a shift from pity to sympathy in structures of feeling about the event. This historical study suggests that a reiterated problem-solving approach can be efficacious in analyzing how construction of national memory of a traumatic event connects with the recurrent reworking of national identity, on the one hand, and how a theory of cultural trauma can be helpful in exploring a synthesis of psychological and sociological approaches to commemoration of a traumatic event, on the other. (shrink)

Representational momentum is a well-known phenomenon that occurs when a moving object vanishes suddenly and the memory of its final or vanishing position is displaced forward in the direction of its motion. Many studies have shown evidence of various perceptual and cognitive characteristics of RM in various daily aspects, sports, development, and aging. Here we examined the longitudinal developmental changes in the displacement magnitudes of RM among younger and older nursery school children for pointing and judging tasks. In our experiments, (...) the children were asked to point at by their finger and judge the spatial location of the vanishing point of a moving stimulus. Our results showed that the mean magnitudes of RM significantly decreased from 5- to 6-year-old children for the pointing and judging tasks, although the mean magnitude of RM was significantly greater in the 5-year-old children for the pointing task but not for the judging task. We further examined the developmental changes in RM for a wide range of ages based on data from the present study and our previous study. This ad hoc examination showed that the magnitude of RM was significantly greater in 5-year-old children than in adults for the pointing and judging tasks. Our findings suggest that the magnitude of RM was significantly greater in young children than in adults and significantly decreased in young children through adults for the pointing and judging tasks. (shrink)

In recent decades, designers, architects, and landscape architects concerned with their contribution to today’s ecological problems started formulating a new way of designing and creating artifacts. Called “ecological design” and promoted as a corrective alternative to conventional practice, its basic tenet is to draw from nature a guidance for design, rather than imposing our design on nature. This newapproach signifies a welcome change, first by calling attention to the ecological implications of artifacts, a subject matter generally neglected in environmental ethics, (...) and, second, by providing useful, specific suggestions regarding the ecologically responsible way of designing artifacts. However, the conceptual basis and resultant implications of ecological design deserve and need critical analyses. I argue that the basic premise of ecological design—that nature should act as the authority—is problematic by examining analogous strategies from social, political, moral, and aesthetic realms, as well as by exploring its specific application in the promotion of “native” plants in gardens. I end with another issue often neglected in the practice of ecological design: our aesthetic response to the created objects. (shrink)