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pro vyhledávání: '"Jirí Wiedermann"'
This book constitutes the refereed proceedings of the 44th International Conference on Current Trends in Theory and Practice of Computer Science, SOFSEM 2018, held in Krems, Austria, in January/February 2018. The 48 papers presented in this volume we
Autor:
Jirí Wiedermann
Publikováno v:
Journal of Experimental & Theoretical Artificial Intelligence. 15:267-279
The neuroidal tabula rasa (NTR) as a hypothetical device that is capable of performing tasks related to cognitive processes in the brain was introduced by L. G. Valiant in 1994. Neuroidal nets represent a computational model of the NTR. Their basic c
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::939c00eac93d83ec0df241c40dd78a21
https://doi.org/10.1080/0952813021000047189
https://doi.org/10.1080/0952813021000047189
Autor:
Jirí Wiedermann, Jan van Leeuwen
Publikováno v:
Unconventional Models of Computation ISBN: 9783540443117
UMC
UMC
Recent research in theoretical physics on 'Malament-Hogarth space-times' indicates that so-called relativistic computers can be conceived that can carry out certain classically undecidable queries in finite time. We observe that the relativistic Turi
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::49b687908953703b9596118bdaf9bca9
https://doi.org/10.1007/3-540-45833-6_24
https://doi.org/10.1007/3-540-45833-6_24
Autor:
Jan van Leeuwen, Jirí Wiedermann
Publikováno v:
SOFSEM 2001: Theory and Practice of Informatics ISBN: 9783540429128
SOFSEM
SOFSEM
Modern networked computing systems follow scenarios that differ from those modeled by classical Turing machines. For example, their architecture and functionality may change over time as components enter or disappear. Also, as a rule their components
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::3e738d57ab255ff125c6c20c56552cd0
https://doi.org/10.1007/3-540-45627-9_8
https://doi.org/10.1007/3-540-45627-9_8
Autor:
Jirí Wiedermann, Jan van Leeuwen
Publikováno v:
Theoretical Computer Science: Exploring New Frontiers of Theoretical Informatics ISBN: 9783540678236
IFIP TCS
IFIP TCS
In a number of recent studies the question has arisen whether the familiar Church-Turing thesis is still adequate to capture the powers and limitations of modern computational systems. In this presentation we review two developments that may lead to
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::6247809818fe856a55e5506425975574
https://doi.org/10.1007/3-540-44929-9_48
https://doi.org/10.1007/3-540-44929-9_48
Autor:
Jirí Wiedermann, Jan van Leeuwen
Publikováno v:
Lecture Notes in Computer Science ISBN: 9783540679011
MFCS
MFCS
Many IT-systems behave very differently from classical machine models: they interact with an unpredictable environment, they never terminate, and their behavior changes over time. Wegner [25,26] (see also [28]) recently argued that the power of inter
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::b126be1244491a94d8da68f09b586443
https://doi.org/10.1007/3-540-44612-5_7
https://doi.org/10.1007/3-540-44612-5_7
Autor:
Jirí Wiedermann
Publikováno v:
Lecture Notes in Computer Science ISBN: 9783540667483
ALT
ALT
The neuroidal tabula rasa (NTR) as a hypothetical device which is capable of performing tasks related to cognitive processes in the brain was introduced by L. G. Valiant in 1994. Neuroidal nets represent a computational model of the NTR. Their basic
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::c1b0ebff3f8236690d33090652fba8ee
https://doi.org/10.1007/3-540-46769-6_6
https://doi.org/10.1007/3-540-46769-6_6
Autor:
Jirí Wiedermann
Publikováno v:
SOFSEM’99: Theory and Practice of Informatics ISBN: 9783540666943
SOFSEM
SOFSEM
Neuroid as a kind of a programmable neuron has been introduced by L. G. Valiant in 1988. Essentially it is a combination of a standard threshold element with a mechanism that allows for modification of neuroid's computational behaviour. This is done
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::eb36b3237539dbba9ce32056005b8d4b
https://doi.org/10.1007/3-540-47849-3_36
https://doi.org/10.1007/3-540-47849-3_36
Autor:
Jirí Wiedermann
Publikováno v:
Mathematical Foundations of Computer Science 1998 ISBN: 9783540648277
MFCS
MFCS
The cogitoid is a computational model of cognition introduced recently by the author. In cogitoids, knowledge is represented by a lattice of concepts and associations among them. From computational point of view any cogitoid is an interactive transdu
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::c279e6b83aea7cc2046492d6b4ed5820
https://doi.org/10.1007/bfb0055764
https://doi.org/10.1007/bfb0055764
Autor:
Jirí Wiedermann
Publikováno v:
Mathematical Foundations of Computer Science 1998 ISBN: 9783540648277
MFCS
MFCS
It is shown that any nonderministic single-tape off-line Turing machine of time complexity T(n) can be speeded-up by one extra alternation by the factor log log T(n)/ √ log T(n), for any well-behaved function T(n). This leads to the separation NTIM
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::d5e45ef475b03c985e042ea549fc8dce
https://doi.org/10.1007/bfb0055811
https://doi.org/10.1007/bfb0055811