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41.
42.
Marcin Miłkowski 《Minds and Machines》2009,19(4):465-475
In Darwin’s Dangerous Idea, Daniel Dennett claims that evolution is algorithmic. On Dennett’s analysis, evolutionary processes are trivially algorithmic
because he assumes that all natural processes are algorithmic. I will argue that there are more robust ways to understand
algorithmic processes that make the claim that evolution is algorithmic empirical and not conceptual. While laws of nature
can be seen as compression algorithms of information about the world, it does not follow logically that they are implemented
as algorithms by physical processes. For that to be true, the processes have to be part of computational systems. The basic
difference between mere simulation and real computing is having proper causal structure. I will show what kind of requirements
this poses for natural evolutionary processes if they are to be computational. 相似文献
43.
Tomasz Fałat Kazimierz Friedel Norman Marenco Stephan Warnat 《Microsystem Technologies》2009,15(1):181-190
The current paper focuses on several mechanical aspects of a waferlevel packaging approach using a direct face-to-face Chip-to-Wafer
(C2W) bonding of a MEMS device on an ASIC substrate wafer. Requirements of minimized inherent stress from packaging and good
decoupling from forces applied in manufacturing and application are discussed with particular attention to the presence of
through-silicon vias (TSV) in the substrate wafer. The paper deals with FEM analysis of temperature excursion, pressure during
molding, materials used and handling load influence on mechanical stress within the TSV system and on wafer level, which can
be large enough to disintegrate the system. 相似文献
44.
45.
Dorota Leszczyńska-Jasion Paweł Łupkowski 《Journal of Logic, Language and Information》2016,25(1):51-76
Our aim is to model the behaviour of a cognitive agent trying to solve a complex problem by dividing it into sub-problems, but failing to solve some of these sub-problems. We use the powerful framework of erotetic search scenarios (ESS) combined with Kleene’s strong three-valued logic. ESS, defined on the grounds of Inferential Erotetic Logic, has appeared to be a useful logical tool for modelling cognitive goal-directed processes. Using the logical tools of ESS and the three-valued logic, we will show how an agent could solve the initial problem despite the fact that the sub-problems remain unsolved. Thus our model not only indicates missing information but also specifies the contexts in which the problem-solving process may end in success despite the lack of information. We will also show that this model of problem solving may find use in an analysis of natural language dialogues. 相似文献
46.
In this paper a novel Tensor-Based Image Segmentation Algorithm (TBISA) is presented, which is dedicated for segmentation of colour images. A purpose of TBISA is to distinguish specific objects based on their characteristics, i.e. shape, colour, texture, or a mixture of these features. All of those information are available in colour channel data. Nonetheless, performing image analysis on the pixel level using RGB values, does not allow to access information on texture which is hidden in relation between neighbouring pixels. Therefore, to take full advantage of all available information, we propose to incorporate the Structural Tensors as a feature extraction method. It forms enriched feature set which, apart from colour and intensity, conveys also information of texture. This set is next processed by different classification algorithms for image segmentation. Quality of TBISA is evaluated in a series of experiments carried on benchmark images. Obtained results prove that the proposed method allows accurate and fast image segmentation. 相似文献
47.
We propose an efficient algorithm for computing a unit lower triangular n×n matrix with prescribed singular values of O(n
2) cost. This is a solution of the question raised by N. J. Higham in [4, Problem 26.3, p. 528].
Received July 21, 1999; revised November 4, 1999 相似文献
48.
Bolesław Kacewicz 《Mathematics of Control, Signals, and Systems (MCSS)》2000,13(4):347-359
In contrast to the worst case approach, the average case setting provides less conservative insight into the quality of estimation
algorithms. In this paper we consider two local average case error measures of algorithms based on noisy information, in Hilbert
norms in the problem element and information spaces. We define the optimal algorithm and provide formulas for its two local
errors, which explicitly exhibit the influence of factors such as information, information (measurement) errors, norms in
the considered spaces, a subset where approximations are allowed, and “unmodeled dynamics.” Based on the error expression,
we formulate in algebraic language the problem of selecting the optimal approximating subspace. The solution is given along
with the specific formula for the error, which depends on the eigenvalues of a certain matrix defined by information and norms
under consideration.
Date received: November 25, 1999. Date revised: May 30, 2000. 相似文献
49.
Władysław Mantura 《人机工程学与制造业中的人性因素》2008,18(5):565-579
This article shows the results of research regarding the importance and the role of human factors in quality management in production enterprises. In creating the concept of systematizations of human factors in quality management an anthropocentrism rule was accepted and resulting from it a category of life quality. Acceptance of this rule led to a multiaspect and comprehensive approach to human factors in quality management. An interpretation of the notion of quality was made, adequate to needs, goals, and requirements of a human. Additionally, a cybernetic model of quality management system was elaborated. Human factors was exhibited in the manager's and executor's roles in quality management systems in enterprise as well as to the roles of creators, producers, and users (customers) in product life cycles. An existence of human factors in ISO norms regarding quality management, work safety, and hygiene management and environment management was also shown. The objective of this article is a comprehensive identification and systematization of aspects of human factors in quality management. © 2008 Wiley Periodicals, Inc. 相似文献
50.
The output of the human postural control system is studied by means of linear system theory. It is assumed that the act of maintaining an erect posture can be treated as an autoregressive system with white noise on input. The identification is performed on the basis of the centre of pressure trajectory and it is shown that the most important features of the postural signal are sufficiently well reproduced by a low order linear autoregressive model. It is shown that the parameters of a model depend on the human subject and in some way characterize his state. Poles of the transmitancy function lying close to the unit circle are discussed as parameters describing the response function and human reactions to external perturbations. In additionf, an analysis of the correlation function within the autoregressive model is performed and its scaling exponents are computed and compared to the experimental results. 相似文献