This article concerns the hardware iterative decoder for a subclass of LDPC (Low-Density Parity-Check) codes that are implementation oriented. They are known as Architecture Aware LDPC (AA-LDPC). The decoder has been ...
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In this paper we address the topic of embedding 2D barcode detection and reading technology into specific online environment applications. We propose a framework for the integration of barcode technology into common u...
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The paper presents a software application for modeling, simulation and analysis of urban traffic networks behavior in different functioning contexts. A module of control techniques, based on different approaches (as g...
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Web-based blended learning at Silesian University of Technology, Poland, is supported by integrated elearning service called Distant Education Platform (DEP). The authors discuss general framework concerning DEP and p...
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ISBN:
(纸本)9780889868328
Web-based blended learning at Silesian University of Technology, Poland, is supported by integrated elearning service called Distant Education Platform (DEP). The authors discuss general framework concerning DEP and present the ideas of DEP-based knowledge delivery. Introduction of modern technologies has changed education process significantly. The quality of courses supported by DEP has been improved, the number of services has increased and the teachers' workload has been reduced. Nevertheless, the number of courses that have been fully transformed into blended version is insufficient. There are many barriers to successful implementation of web-based learning - technical, mental and pedagogical. In the paper the authors present comprehensive list of potential barriers, and give some guidelines how to overcome them.
Current Web search engines return long lists of ranked documents that users are forced to sift through to find relevant documents. This paper introduces a new approach for clustering Web search results, based on the n...
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ISBN:
(纸本)9789898425225
Current Web search engines return long lists of ranked documents that users are forced to sift through to find relevant documents. This paper introduces a new approach for clustering Web search results, based on the notion of clustering by compression. Compression algorithms allow defining a similarity measure based on the degree of common information. Classification methods allow clustering similar data without any previous knowledge. The clustering by compression procedure is based on a parameter-free, universal, similarity distance, the normalized compression distance or NCD, computed from the lengths of compressed data files. Our goal is to apply the clustering by compression algorithm in order to cluster the documents returned by a Web search engine in response to a user query.
Skew detection and correction is an important step in automated content conversion systems, on which overall system performance is dependent. Although there are many working solutions at the present time, the search f...
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The paper is devoted to analyze the observability of an arbitrary order dynamical systems. Following the aim of formulation the conditions of initial observability of arbitrary order system spectral theory for linear ...
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The paper is devoted to analyze the observability of an arbitrary order dynamical systems. Following the aim of formulation the conditions of initial observability of arbitrary order system spectral theory for linear operators is involved. In the article the theorem on necessary and sufficient conditions on initial observability are formulated is proved. The very innovation of the article is the general, arbitrary order respect to time of the analyzed dynamical system.
The paper investigates barriers to innovation in epedagogy, seeks answer to the following basic question: "why teachers underutilize innovative tools?". The Authors report on a case study that was carried ou...
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ISBN:
(纸本)9780889868670
The paper investigates barriers to innovation in epedagogy, seeks answer to the following basic question: "why teachers underutilize innovative tools?". The Authors report on a case study that was carried out at the Silesian University of Technology. Teachers using the Moodle learning platform were surveyed to see: 1) to what extent they made use of its different elements, 2) identify barriers in e-learning development and see teachers' general opinion about this form of education. Firstly, based on the survey results, comments related with these two groups of questions are given, then some general conclusions are drawn. Answer to the basic question is given as well, however no special recommendations for ensuring that teachers embrace rather than resist a move to e-education are offered. It looks that "carrot and stick" is the only effective policy that is able to force teachers to leave their "classroom kingdom".
In this paper we present novel algorithmic solutions for several resource processing and data transfer multicriteria optimization problems. The results of most of the presented techniques are strategies which solve th...
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The present paper describes the simplest methods of the numerical analysis of a model of continuous culture of microorganisms limited for growth with mixture of substrates, which is very important from a practical poi...
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ISBN:
(纸本)9789604741946
The present paper describes the simplest methods of the numerical analysis of a model of continuous culture of microorganisms limited for growth with mixture of substrates, which is very important from a practical point of view. In turn, the contribution of the individual substrates was set by the weight-coefficient - r. Two important cases have been taken into account: the influence of the dilution rate D on steady-states values of the biomass concentration in the presence of one source of substrate and the influence of both parameters D and r on steady-states values of the biomass concentration for the mixture of two substrates. Apart from using the basic numerical methods for solving ordinary differential equations, it has been presented the algorithm for detecting stable limit cycles. The presented algorithms can be implemented in most programming languages for which there exist free compilers what releases users from the necessity of use of commercial software for the numerical analysis of the systems.
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