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Catalog Publications

Year 2015
Year 2014
  • A Model-Driven Solution for Development of Multimedia Stream Processing Applications
    Publication

    This paper presents results of action research related to model-driven solutions in the area of multimedia stream processing. The practical problem to be solved was the need to support application developers who make their multimedia stream processing applications in a supercomputer environment. The solution consists of a domain-specific visual language for composing complex services from simple services called Multimedia Stream...

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  • A Workflow Application for Parallel Processing of Big Data from an Internet Portal
    Publication

    - Year 2014

    The paper presents a workflow application for efficient parallel processing of data downloaded from an Internet portal. The workflow partitions input files into subdirectories which are further split for parallel processing by services installed on distinct computer nodes. This way, analysis of the first ready subdirectories can start fast and is handled by services implemented as parallel multithreaded applications using multiple...

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  • Comparison of selected algorithms for scheduling workflow applications with dynamically changing service availability

    This paper compares the quality and execution times of several algorithms for scheduling service based workflow applications with changeable service availability and parameters. A workflow is defined as an acyclic directed graph with nodes corresponding to tasks and edges to dependencies between tasks. For each task, one out of several available services needs to be chosen and scheduled to minimize the workflow execution time and...

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  • Developing competences for cooperation in international teams - tools and methods
    Publication

    The article presents the training methods that can be used to develop intercultural competences which are extremely important while working in intercultural teams. The mentioned methods like: case-studies, collaborating, role-play simulations, team working, video presentations and others are presented on the basis of authors’ experiences while teaching the international groups of students at Faculty of Management and Economics...

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  • Gender differences in entrepreneurship myths
    Publication

    - Year 2014

    The article presents the research results related to the most popular entrepreneurship myths in a group of business students. The author focused on gender differences in myth intensity, credibility and importance based on subject literature. The statistic analysis does not confirm any significant differences between male and female groups in case of the majority of myths, however women’s entrepreneurial intentions proved to be...

  • Genetic Programming for Interaction Efficient Supporting in Volunteer Computing Systems
    Publication

    Volunteer computing systems provide a middleware for interaction between project owners and great number volunteers. In this chapter, a genetic programming paradigm has been proposed to a multi-objective scheduler design for efficient using some resources of volunteer computers via the web. In a studied problem, genetic scheduler can optimize both a workload of a bottleneck computer and cost of system. Genetic programming has been...

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  • Inżynierowie przyszłości
    Publication

    W artykule omówiono dwie podstawowe metody kształcenia inżynierów oraz podkreślono rolę we współczesnym świecie inżynierów,zwracając uwagę na rozwój twórczych umiejętności, tak niezbędnych w globalnej gospodarce. Zaakcentowano potrzeby zmian oraz trudności ich realizacji w obecnych warunkach. Wskazano także rozwiązania już wdrażanie na Politechnice Gdańskiej.

  • KOMPETENCJE MIĘDZYKULTUROWE A UDZIAŁ W PROGRAMIE ERASMUS

    Kompetencje międzykulturowe, rozumiane jako postawa wobec współpracy z przedstawicielami innych kultur, to ważny element kształcenia studentów w procesie przygotowywania ich do podejmowania działań na globalnym rynku pracy. Artykuł prezentuje wyniki badań dotyczących postaw studentów wobec pracy w zespołach wielokulturowych. Skoncentrowano się głównie na porównaniu nastawienia studentów w zależności od tego, czy byli wcześniej...

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  • Mobility Managment Scenarios for IPv6 Networks-Proxy Mobile IP-v6Implementation Issues

    Management of user at the network layer plays an important role in efficient network operation. In the paper, authors' implementation of one of network-based mobility management models, namely Proxy Mobile IPv6, is presented and tested in a number of networking topologies and communication scenarios. The proposed implementation covers PMPIv6 functionality with optional security extensions (use of Diameter protocol) and handover...

  • Modele przetwarzania aplikacji na klastrach obliczeniowych
    Publication

    W dzisiejszych czasach badania prowadzone w różnych dziedzinach nauki a także różnego rodzaju aplikacje i wdrożone systemy operują na coraz większych wolumenach danych przy jednocześnie rosnących wymaganiach dotyczących czasu wykonania. Z tego powodu coraz częściej do obliczeń wykorzystuje się klastry obliczeniowe, gdzie do dyspozycji użytkowników pozostaje ogromna moc obliczeniowa (liczona w tera a nawet peta flopach), terabajty...

  • Ocena efektów projektu wspierającego przedsiębiorczość grupy 50+: Pomorska Fabryka Design
    Publication

    - Year 2014

    Tekst prezentuje zakres projektu Pomorska Fabryka Designu realizowanego przez Gdańską Fundację Przedsiębiorczości i Powiatowy Urząd Pracy w Gdańsku, którego głównym celem było opracowanie modelu aktywizacji zawodowej osób 50+ poprzez założenie przez nich własnej działalności gospodarczej, wykorzystującej ich twórcze zdolności. Projekt jest ciekawym przedsięwzięciem, gdyż w procesie wspierania dojrzałych przedsiębiorców zakłada...

  • OCENA KLIMATU PRACY W ZESPOLE WIELOKULTUROWYM
    Publication

    Artykuł dotyczy tematyki zespołów wielokulturowych, które ze względu na specyfikę globalnego rynku odgrywają coraz ważniejszą rolę we współczesnych organizacjach. Skoncentrowano się na kształtowaniu klimatu pracy zespołowej, który pozwala wykorzystać potencjał zespołu zróżnicowanego kulturowo, podkreślając potencjalne utrudnienia i ich źródła. Zaprezentowano wyniki badań kwestionariuszowych, których celem było sprawdzenie, na ile...

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  • Oczekiwania stron konfliktu i mediatorów wobec e-mediacji. Czy e-mediacja ma przyszłość?
    Publication

    - Year 2014

    Artykuł prezentuje możliwości prowadzenia mediacji – skutecznej i korzystnej, ale rzadko wykorzystywanej w Polsce metody pozasądowego rozstrzygania sporów - z wykorzystaniem profesjonalnej platformy internetowej. Na podstawie badań przeprowadzonych na grupie mediatorów oraz stron konfliktów określono oczekiwania dotyczące prowadzenia e-mediacji i wyzwania, jakie stawia przed mediatorami mediacja on-line.

  • On Software Unit Testing For Improving Security And Performance Of Distributed Applications

    Performance and security are software (SW) application attributes situated on the opposite corners of system design. In the most drastic example the most secure component is the one totally isolated from the outside world, with communication performance reduced to zero level (e.g. disconnected physically from the network, placed inside a Faraday cage to eliminate possible wireless accessibility). On the other hand the most performance-optimized...

  • Optimization of Execution Time under Power Consumption Constraints in a Heterogeneous Parallel System with GPUs and CPUs
    Publication

    The paper proposes an approach for parallelization of computations across a collection of clusters with heterogeneous nodes with both GPUs and CPUs. The proposed system partitions input data into chunks and assigns to par- ticular devices for processing using OpenCL kernels defined by the user. The sys- tem is able to minimize the execution time of the application while maintaining the power consumption of the utilized GPUs and...

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  • Optymizm przedsiębiorców a ich postawy wobec zmian

    Artykuł dotyczy postaw przedsiębiorców wobec wprowadzania zmian w zarządzanych przez nich firmach. Celem podjętych badań była weryfikacja hipotezy, że poziom optymizmu przedsiębiorcy wpływa na akceptację sytuacji zmian w organizacji i otwartość na jej wdrażanie. Badaniom kwestionariuszowym poddano przedsiębiorców działających na terenie Trójmiasta. Wykorzystano Skalę Orientacji Pozytywnej oraz adaptację Skali Postaw Pracowniczych...

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  • Parallel computations in the volunteer based Comcute system
    Publication

    The paper presents Comcute which is a novel multi-level implemen- tation of the volunteer based computing paradigm. Comcute was designed to let users donate the computing power of their PCs in a simplified manner, requiring only pointing their web browser at a specific web address and clicking a mouse. The server side appoints several servers to be in charge of execution of particular tasks. Thanks to that the system can survive...

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  • Performance Modeling and Prediction of Real Application Workload in a Volunteer-based System
    Publication

    - Year 2014

    The goal of this paper is to present a model that predicts the real workload placed on a volunteer based system by an application, with incorporation of not only performance but also availability of volunteers. The application consists of multiple data packets that need to be processed. Knowing the computational workload demand of a single data packet we show how to estimate the application workload in a volunteer based system. Furthermore,...

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  • Postawy przedsiębiorców wobec rozstrzygania sporów na platformie ODR

    Artykuł dotyczy tematyki alternatywnych metod rozwiązywania sporów, głównie mediacji w środowisku biznesowym. Skoncentrowano się na analizie postaw i oczekiwań przedsiębiorców wobec internetowej platformy do e-mediacji. Tłem do prezentacji wyników badań własnych z tego zakresu jest model uwarunkowań postaw polskich przedsiębiorców wobec ODR, obejmujący postawy wobec konfliktu, wobec mediacji oraz wobec rozwiązań IT, które omówiono...

  • Runtime Visualization of Application Progress and Monitoring of a GPU-enabled Parallel Environment
    Publication

    The paper presents design, implementation and real life uses of a visualization subsystem for a distributed framework for parallelization of workflow-based computations among clusters with nodes that feature both CPUs and GPUs. Firstly, the proposed system presents a graphical view of the infrastructure with clusters, nodes and compute devices along with parameters and runtime graphs of load, memory available, fan speeds etc. Secondly,...

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  • Teaching High Performance Computing Using BeesyCluster and Relevant Usage Statistics
    Publication

    - Year 2014

    The paper presents motivations and experiences from using the BeesyCluster middleware for teaching high performance computing at the Faculty of Electronics, Telecommunications and Informatics, Gdansk University of Technology. Features of BeesyCluster well suited for conducting courses are discussed including: easy-to-use WWW interface for application development and running hiding queuing systems, publishing applications as services...

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  • The Pomerania Design Faktory as an Example of 50+ Entrepreneurship Promotion
    Publication

    - Year 2014

    The article presents one of the programmes carried out by The Gdańsk Entrepreneurs' Foundation and The Gdansk Labor Office in 2013/14, dedicated to seniors. It is a great example of an innovative project aimed at the activation of individuals aged 50+ by using their own talents and interests in business. It also shows the results of intergenerational cooperation because the trainers — especially the designers — were much younger...

  • Towards Increasing Density of Relations in Category Graphs
    Publication

    In the chapter we propose methods for identifying new associations between Wikipedia categories. The first method is based on Bag-of-Words (BOW) representation of Wikipedia articles. Using similarity of the articles belonging to different categories allows to calculate the information about categories similarity. The second method is based on average scores given to categories while categorizing documents by our dedicated score-based...

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  • Using EO satellite data in Safe City and Coastal Zone web-GIS

    The paper presents a novel design of a web-based Safe City & Coastal Zone GIS (SCCZ-GIS) which integrates data acquired from different remote sensing and geospatial data sources for monitoring the security of the coastal zone, its inhabitants and Critical Infrastructure. The system utilizes several innovative technologies and directly co-operates with different remote sensing data sources and services, like a satellite ground station...

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  • Zgred - Zgred Graph Editor
    Publication

    - Year 2014

    The paper presents a graph editor that was developed as a supplementary tool for the Koala graph library. We discuss its requirements, design choices and main ideas behind the implementation. The later part of the paper is meant to be a brief user manual, as we go through the functionality provided by the editor

  • Znaczenie Technologii Informacyjnych dla Wzmocnienia Ochrony Granic Morskich Państwa
    Publication

    - Year 2014

    W pracy przedstawiono zarys doktryny sieciocentrycznej, która opiera się na zaawansowanej technologii, a w szczególności na nowoczesnych systemach informatycznych. Znaczenie technologii informacyjnych dla wzmocnienia ochrony granic morskich państwa jest nie do przecenienia. Ma poważny wpływ nie tylko na działania w czasie pokoju, ale także w sytuacji kryzysowej i operacji wojennych. Dlatego...

Year 2013
  • A Concept of Modeling and Optimization of Applications in Large Scale Systems
    Publication

    - Year 2013

    The chapter presents the idea that includes modeling and subsequent optimization of application execution on large scale parallel and distributed systems. The model considers performance, reliability and power consumption. It should allow easy modeling of various classes of applications while reflecting key parameters of both the applications and two classes of target systems: clusters and volunteer based systems. The chapter presents...

  • A model, design, and implementation of an efficient multithreaded workflow execution engine with data streaming, caching, and storage constraints
    Publication

    The paper proposes a model, design, and implementation of an efficient multithreaded engine for execution of distributed service-based workflows with data streaming defined on a per task basis. The implementation takes into account capacity constraints of the servers on which services are installed and the workflow data footprint if needed. Furthermore, it also considers storage space of the workflow execution engine and its cost....

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  • An Evaluation Engine for Dynamic Ranking of Cloud Providers
    Publication

    - Informatica - Year 2013

    The paper focuses on creation of an effective dynamic ranking service for IaaS, PaaS and SaaS cloud providers. It considers building a quality model for this purpose along with definition of quality measure- ment procedures. The paper discusses several techniques known from already existing price comparison engines that could be modified and adopted for comparison of cloud providers. A technique for filtering measured data is proposed,...

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  • Application development for Android, iOS and BlackBerry mobile platforms

    Mobile devices, along with dedicated operating systems, have become a substantial and rising trend in software development. Computer industry has significantly changed in order to fulfil the needs of this new segment of the market. Authors have participated in projects, which involved programming on Android, iOS and BlackBerry operating systems. In this paper the most popular mobile platforms (and multiplatform Unity3D environment)...

  • Augmenting digital documents with negotiation capability
    Publication

    Active digital documents are not only capable of performing various operations using their internal functionality and external services, accessible in the environment in which they operate, but can also migrate on their own over a network of mobile devices that provide dynamically changing execution contexts. They may imply conflicts between preferences of the active document and the device the former wishes to execute on. In the...

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