http://popups.lib.uliege.be/1373-5411/index.php?id=490 Publications of Auteurs Hidetoshi Nonaka fr 0 http://popups.lib.uliege.be/1373-5411/index.php?id=4373 The author has developed an interactive learning system of polyhedra, based on graph operations and simulated elasticity potential method, mainly for educational purpose. In this paper, we introduce a learning subsystem of vertex colouring, edge colouring, and face colouring, based on minimum spanning tree and degenerated polyhedron. Thu, 10 Oct 2024 10:07:18 +0200 Thu, 10 Oct 2024 10:07:31 +0200 http://popups.lib.uliege.be/1373-5411/index.php?id=4373 http://popups.lib.uliege.be/1373-5411/index.php?id=3542 We propose a method of anticipation of mouse cursor movement using pressure sensors. Pressure sensors are embedded in mouse pad. Data from sensors are collected in 10-bit A/D value every 10 ms. From the time series of pressure level, the orientation and distance are anticipated at the moment of starting the mouse movement. Moreover, user's intention and posture can be extracted to some extent by sensing pressure amplitude and latency. In this paper, we present the configurations of our system and the results of experiments for evaluation. Tue, 24 Sep 2024 11:25:47 +0200 Tue, 24 Sep 2024 11:26:00 +0200 http://popups.lib.uliege.be/1373-5411/index.php?id=3542 http://popups.lib.uliege.be/1373-5411/index.php?id=2713 In this paper, we deal with the parameter dependency for the limit figures and the sufficient number of iterations in drawing the limit figures of quadratic transformations. The structure of the limit figures depends on the coefficients of the transformation, and has turned out to be complicated. Using the property that the limit figures are one-way functions, Da-te (2001) proposed an authentication algorithm. For the purpose of verification of the securities in the authentication algorithm, we show the experimental results for some properties of the limit figures. Fri, 30 Aug 2024 11:54:24 +0200 Fri, 30 Aug 2024 11:54:33 +0200 http://popups.lib.uliege.be/1373-5411/index.php?id=2713 http://popups.lib.uliege.be/1373-5411/index.php?id=2168 This paper presents a matching method for head gesture identification in a query-based interface. Head gesture identification has been achieved by various methods ; DP matching ; hidden Markov model, and so on. The aims of these conventional methods are dealing with general gestures at arbitrary moment. On the contrary, in our purpose, the timing of a gesture or what gesture will be made are predictable to some extent. The main purpose of this research is to realize an interface under variety of conditions, in flexible situations every time, and everywhere, for example, during walking around. In our system, there are two levels of anticipation features. The one is modifying the reference patterns according to the context of the query and cognitive difficulty of the question before making query. And the other is incursive refinement of reference patterns during matching process with allowance of future revision. Tue, 30 Jul 2024 12:04:48 +0200 Tue, 30 Jul 2024 12:04:56 +0200 http://popups.lib.uliege.be/1373-5411/index.php?id=2168 http://popups.lib.uliege.be/1373-5411/index.php?id=2080 In this paper, we deal with intuitively simple properties of the limit figures of two-dimensional inhomogeneous quadratic transformations. The divergence-convergence boundary of homogeneous quadratic transformations was investigated in detail in Da-te (1978). In an inhomogeneous case, there exist, possibly, the region of initial points converging to a fixed point other than the origin due to the linear terms. Then, there appears a boundary with a finite area as a limit figure. Next, in certain cases, the convergence regions or the divergence regions consist of infinite number of separated regions. We show the examples of the properties, and investigate them. Mon, 29 Jul 2024 11:29:00 +0200 Mon, 29 Jul 2024 11:29:15 +0200 http://popups.lib.uliege.be/1373-5411/index.php?id=2080 http://popups.lib.uliege.be/1373-5411/index.php?id=1790 We have investigated affective influence derived from the visual effects in moving images. In this paper, we confine ourselves to transition, especially dissolve, as one of the visual effects. We found that the influence of transition can be anticipated by the impressiveness of the pre-transition and post-transition images. If both images are simple, the post-transition image is dominant in affective influence. And if both are complex, more impressive images are dominant in affective influence. Moreover, in the former case, the influence is independent of duration of transition, while in the latter case, the dominance of the post-transition image increases with the duration of transition. Tue, 16 Jul 2024 15:45:29 +0200 Thu, 10 Oct 2024 10:02:20 +0200 http://popups.lib.uliege.be/1373-5411/index.php?id=1790 http://popups.lib.uliege.be/1373-5411/index.php?id=485 In this paper a learning system of user action is proposed. It is constructed by combining an ultrasonic phase measuring method with an artificial pulse neural network by analogy of a physiological model of auditory processing. Thu, 27 Jun 2024 11:54:12 +0200 Thu, 27 Jun 2024 11:54:25 +0200 http://popups.lib.uliege.be/1373-5411/index.php?id=485