Temat: computation - Prolib Integro

Skocz do pozycji: 1.

Tytuł:: The False Dichotomy Between Causal Realization and Semantic Computation
Autorzy:: Miłkowski, Marcin
Tematy:: physical computation; semantic account of computation; mechanistic account of computation; mechanistic explanation; causal realization; Pokaż więcej
Wydawca:: Uniwersytet Łódzki. Wydawnictwo Uniwersytetu Łódzkiego
Powiązania:: https://bibliotekanauki.pl/articles/600600.pdf Link otwiera się w nowym oknie
Opis:: In this paper, I show how semantic factors constrain the understanding of the computational phenomena to be explained so that they help build better mechanistic models. In particular, understanding what cognitive systems may refer to is important in building better models of cognitive processes. For that purpose, a recent study of some phenomena in rats that are capable of ‘entertaining’ future paths (Pfeiffer and Foster 2013) is analyzed. The case shows that the mechanistic account of physical computation may be complemented with semantic considerations, and in many cases, it actually should.
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 2.

Tytuł:: From quantum logic to quantum computational logic
Autorzy:: Caponigro, M.
Mancini, S.
Tematy:: quantum logic
quantum computation; Pokaż więcej
Wydawca:: Politechnika Gdańska
Powiązania:: https://bibliotekanauki.pl/articles/1955359.pdf Link otwiera się w nowym oknie
Opis:: We overview the main concepts of quantum logic ranging from the orthodox formulation to the quantum computational aspects.
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 3.

Tytuł:: Evolutionary Computation for Global Optimization - Current Trends
Autorzy:: Arabas, J.
Tematy:: evolutionary computation
global optimization; Pokaż więcej
Wydawca:: Instytut Łączności - Państwowy Instytut Badawczy
Powiązania:: https://bibliotekanauki.pl/articles/308443.pdf Link otwiera się w nowym oknie
Opis:: This article comments on the development of Evolutionary Computation (EC) in the field of global optimization. A brief overview of EC fundamentals is provided together with the discussion of issues of parameter settings and adaptation, advances in the development of theory, new ideas emerging in the EC field and growing availability of massively parallel machines.
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 4.

Tytuł:: Numerical calculation of 1D ZRP chain electrical conductivity
Autorzy:: Botman, S.
Tematy:: conductivity
kinetic equation
numerical computation; Pokaż więcej
Wydawca:: Politechnika Gdańska
Powiązania:: https://bibliotekanauki.pl/articles/1940699.pdf Link otwiera się w nowym oknie
Opis:: In this paper we present a numerical procedure for calculation of electrical conductivity in a periodic lattice of one-dimensional zero range potentials with a case of dominant impurity scattering. The conductivity was previously obtained in an integral form via an approximate solution of the kinetic Kolmogorov equation. The proposed approach is based on the quadrature formula for certain type of integrals. The results are compared with the low temperature limit approximation.
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 5.

Tytuł:: Parallel Computation Approaches to Optimize Learning Systems
Autorzy:: Czyż, T.
Rudek, R.
Selvaraj, H.
Tematy:: parallel computation
metaheuristic
scheduling
learning; Pokaż więcej
Wydawca:: Polska Akademia Nauk. Czytelnia Czasopism PAN
Powiązania:: https://bibliotekanauki.pl/articles/226487.pdf Link otwiera się w nowym oknie
Opis:: This paper is devoted to the total tardiness minimization scheduling problem, where the efficiency of a processor increases due to its learning. Such problems model real-life settings that occur in the presence of a human learning (industry, manufacturing, management) and in some computer systems. However, the increasing growth of significant achievements in the field of artificial intelligence and machine learning is a premise that the human-like learning will be present in mechanized industrial processes that are controlled or performed by machines as well as in the greater number of multi-agent computer systems. Therefore, the optimization algorithms dedicated in this paper for scheduling problems with learning are not only the answer for present day scheduling problems (where human plays important role), but they are also a step forward to the improvement of self-learning and adapting systems that undeniably will occur in a new future. To solve the analysed problem, we propose parallel computation approaches that are based on NEH, tabu search and simulated annealing algorithms. The numerical analysis confirm high accuracy of these methods and show that the presented approaches significantly decrease running times of simulated annealing and tabu search and also reduce the running times of NEH.
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 6.

Tytuł:: Application of the maxima in the teaching of science subjects at different levels of knowledge
Autorzy:: Makarewicz, A.
Tematy:: computer program
numerical computation
symbolic computation
symbolic differentiation
symbolic integration
graph
graph three-dimensional
function; Pokaż więcej
Wydawca:: Stowarzyszenie Inżynierów i Techników Mechaników Polskich
Powiązania:: https://bibliotekanauki.pl/articles/102132.pdf Link otwiera się w nowym oknie
Opis:: In this paper I present a program Maxima, which is one of the best computer algebra system (CAS). The program is easy to use and offers many possibilities. In the text the interface, basic commands, and various examples to facilitate complex calculations in almost every field of mathematics are preented. I prove that the program can be used in secondary schools, upper secondary schools and college. Program’s capabilities are presented, including, among others, differentiation and symbolic integration, symbolic solving equations (including differential), simplifying algebraic expressions, matrix operations, the possibility of drawing graphs of 2D / 3D and others.
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 7.

Tytuł:: Models of quantum computation and quantum programming languages
Autorzy:: Miszczak, Jarosław Adam
Wydawca:: Polish Academy of Sciences
Opis:: Polish National Science Centre under the grants number N N516 475440, N N516 481840 and by the Polish Ministry of Science and Higher Education under the grant number N N519 442339
The goal of the presented paper is to provide an introduction to the basic computational models used in quantum information theory. We review various models of quantum Turing machine, quantum circuits and quantum random access machine (QRAM) along with their classical counterparts. We also provide an introduction to quantum programming languages, which are developed using the QRAM model. We review the syntax of several existing quantum programming languages and discuss their features and limitations.
Jarosław Miszczak
Dostawca treści:: Repozytorium Centrum Otwartej Nauki

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Skocz do pozycji: 8.

Tytuł:: The Quantum Computer - What Does It Means?
Autorzy:: Kosiński, J.
Tematy:: qubit
quantum gate
quantum algorithm
quantum computation; Pokaż więcej
Wydawca:: Uniwersytet Przyrodniczo-Humanistyczny w Siedlcach
Powiązania:: https://bibliotekanauki.pl/articles/92895.pdf Link otwiera się w nowym oknie
Opis:: In a classical measurement the Shannon information is a natural measure of our ignorance about properties of a system. There, observation removes that ignorance in revealing properties of the system which can be considered to preexist prior to and independent of observation. Because of the completely different root of a quantum measurement as compared to a classical measurement, conceptual difficulties arise when we try to define the information gain in a quantum measurement using the notion of Shannon information. In contrast to classical measurements, quantum measurements, with very few exceptions, cannot be claimed to reveal a property of the individual quantum system existing before the measurement is performed. A mathematical theory of computation that is based on quantum physics is bound to be different. They are the analogues for quantum computers to classical logic gates for conventional digital computers. Although quantum gates work on qubits in a much different fashion from standard electronic circuits, they only differ in their basic effects in one sense: reversibility.
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 9.

Tytuł:: Using shared memory as a cache in cellular automata water flow simulations on GPUs
Autorzy:: Topa, P.
Młocek, P.
Tematy:: cellular automata
GPU computation
modelling physical phenomena; Pokaż więcej
Wydawca:: Akademia Górniczo-Hutnicza im. Stanisława Staszica w Krakowie. Wydawnictwo AGH
Powiązania:: https://bibliotekanauki.pl/articles/305529.pdf Link otwiera się w nowym oknie
Opis:: Graphics processors (GPU – Graphic Processor Units) recently have gained a lot of interest as an efficient platform for general-purpose computation. Cellular Automata approach which is inherently parallel gives the opportunity to implement high performance simulations. This paper presents how shared memory in GPU can be used to improve performance for Cellular Automata models. In our previous works, we proposed algorithms for Cellular Automata model that use only a GPU global memory. Using a profiling tool, we found bottlenecks in our approach. With this paper, we will introduce modifications that takes an advantage of fast shared memory. The modified algorithm is presented in details, and the results of profiling and performance test are demonstrated. Our unique achievement is comparing the efficiency of the same algorithm working with a global and shared memory.
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 10.

Tytuł:: Evolutionary multi-agent system with crowding factor and mass center mechanisms for multiobjective optimisation
Autorzy:: Różański, Mateusz
Siwik, Leszek
Tematy:: evolutionary computation
multi-agent system
multiobjective optimisation; Pokaż więcej
Wydawca:: Akademia Górniczo-Hutnicza im. Stanisława Staszica w Krakowie. Wydawnictwo AGH
Powiązania:: https://bibliotekanauki.pl/articles/305591.pdf Link otwiera się w nowym oknie
Opis:: This work presents some additional mechanisms for Evolutionary Multi-Agent Systems for Multiobjective Optimisation trying to solve problems with population stagnation and loss of diversity. Those mechanisms reward solutions located in a less crowded neighborhood and on edges of the frontier. Both techniques have been described and also some preliminary results have been shown.
Dostawca treści:: Biblioteka Nauki

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