Browsing by Subject "clusters"

Now showing 1 - 6 of 6

Access status: Open Access ,
Changes in the European Union Countries’ Levels of Innovation Performance at Time of Pandemic
(Wydawnictwa AGH, 2023) Brania, Krzysztof; Peszko, Agnieszka
The main objective of this chapter is to present changes in the levels of innovation performance of the EU economies during the pandemic. This is realised by analysing the changes of the Global Innovation Index (GII) in 28 European Union countries in 2019 and 2022. The empirical research (including data visualisation, descriptive statistics and k-means clustering) has been performed in the R programming language. The results clearly show the time of the pandemic was in no way conducive to the growth of innovation in the economies. The mean GII for EU-28 in 2019 was 49.1, to decline to 46.09 in 2022. Twenty-five EU countries experienced falling GII in 2019–2022. Only 3 out of the 28 countries reviewed managed to slightly improve their innovativeness (France, Malta, and Estonia). The added value of this study consists in supplying data on the changes of innovation levels in the particular countries, tracking these changes in comparison with other countries, and identifying similarities (a division into clusters). This may provide valuable information to decision-makers in the individual countries when making informed decisions about innovation policies.
Access status: Open Access ,
Cluster as place of efficient diffusion of knowledge - experiences of Lower Silesia
(Wydawnictwa AGH, 2018) Wachowska, Małgorzata
Due to the fact that clusters should implement the idea of an open innovation model, the paper focuses on the role of Lower Silesian clusters in promoting knowledge flow between enterprises and other network participants, which are measured by the numbers of joint inventions and patent citations. On the basis of the analysis of national and international patent applications, it has been found that few inventions of enterprises are created in cooperation with other cluster members as well as that enterprises refer to the knowledge of other cluster members in their patent descriptions to a limited extent, which in general does not support the thesis that cluster membership contributes to the intensification of knowledge-diffusion processes.
Access status: Open Access ,
Flexible and secure access to computing clusters
(Wydawnictwa AGH, 2010) Meizner, Jan; Malawski, Maciej; Bubak, Marian
The investigation presented in this paper was prompted by the need to provide a manageable solution for secure access to computing clusters with a federated authentication framework. This requirement is especially important for scientists who need direct access to computing nodes in order to run their applications (e.g. chemical or medical simulations) with proprietary, open-source or custom-developed software packages. Our existing software, which enables non-Web clients to use Shibboleth-secured services, has been extended to provide direct SSH access to cluster nodes using the Linux Pluggable Authentication Modules mechanism. This allows Shibboleth users to run the required software on clusters. Validation and performance comparison with existing SSH authentication mechanisms confirm that the presented tools satisfy the stated requirements.
Access status: Open Access ,
Heterogeneous GPU&CPU cluster for High Performance Computing in cryptography
(Wydawnictwa AGH, 2012) Marks, Michał; Jantura, Jarosław; Niewiadomska-Szynkiewicz, Ewa; Strzelczyk, Przemysław; Góźdź, Krzysztof
This paper addresses issues associated with distributed computing systems and the application of mixed GPU&CPU technology to data encryption and decryption algorithms. We describe a heterogenous cluster HGCC formed by two types of nodes: Intel processor with NVIDIA graphics processing unit and AMD processor with AMD graphics processing unit (formerly ATI), and a novel software framework that hides the heterogeneity of our cluster and provides tools for solving complex scientific and engineering problems. Finally, we present the results of numerical experiments. The considered case study is concerned with parallel implementations of selected cryptanalysis algorithms. The main goal of the paper is to show the wide applicability of the GPU&CPU technology to large scale computation and data processing.
Access status: Open Access ,
Implementing graph representation model for parallel and distributed systems using Erlang
(Wydawnictwa AGH, 2016) Petrov, Ûrij, K.
This paper describes a new model of graph representation using the Erlang actor model. Benefits of using lightweight processes instead of traditional passive data structures are given. Examples of using this model are shown. The experimental part gives two examples of using early implementations of the offered model. As a conclusion, an analysis of applicability for tasks from different branches of science is given.
Access status: Open Access ,
The conception of cluster support policy in the realities of the Polish economy
(2012) Kaźmierski, Jan
Over the years clusters have become a phenomenon of every economy. They should be treated as a vital mechanism that activates region development. Therefore, cluster-based policy gains an exceptional meaning. Selecting that model of policy, the problem of public aid and support instruments' appliance are crucial issues. Beside the aspects that were mentioned above, the author also discusses barriers and limitations which are connected with cluster-based policy. He also indicates the ways to overcome them. The conclusions and implications that are presented are for the most part the aftermath of the author's own empirical research on cluster development issues.