Wyniki wyszukiwania dla: Data Collection Techniques

• A Method for Underwater Wireless Data Transmission in a Hydroacoustic Channel under NLOS Conditions

  Publikacja

  • J. Mizeraczyk
  • R. Studanski,
  • A. Zak
  • A. Czapiewska

  - SENSORS - Rok 2021

  Wireless data transmission in the hydroacoustic channel under non-line-of-sight (NLOS) propagation conditions, for example, during a wreck penetration, is difficult to implement reliably. This is mostly due to the multipath propagation, which causes a reduction in the quality of data reception. Therefore, in this work an attempt has been made to develop a reliable method of wireless underwater communication test it under the NLOS...

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• Using Principal Component Analysis and Canonical Discriminant Analysis for multibeam seafloor characterisation data

  Publikacja

  • Z. Łubniewski
  • A. Stepnowski

  - HYDROACOUSTICS - Rok 2012

  The paper presents the seafloor characterisation based on multibeam sonar data. It relies on using the integrated model and description of three types of multibeam data obtained during seafloor sensing: 1) the grey-level sonar images (echograms) of seabed, 2) the 3D model of the seabed surface which consists of bathymetric data, 3) the set of time domain bottom echo envelopes received in the consecutive sonar beams. The classification...

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

  Publikacja

  • K. Bruniecki
  • A. Stepnowski
  • M. Moszyński
  • Z. Łubniewski
  • K. Drypczewski
  • Ł. Markiewicz
  • M. Kulawiak
  • T. Bieliński

  - Rok 2014

  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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• Measurements of High-Speed Data Transmission Radio Link for Special Applications

  Publikacja

  • P. T. Kosz
  • P. Rajchowski
  • K. Cwalina
  • J. Stefański
  • J. Sadowski

  - Rok 2017

  In the article measurements of high-speed data transmission radio link for special applications were presented. Build measurement stand, measurement scenario and obtained results were briefly described. All conducted research work took place in real maritime environment.

• Frameworks and tools for data engineers 2025_2026

  Kursy Online

  • T. Zawadzka

• DATA MINING AND KNOWLEDGE DISCOVERY

  Czasopisma

  ISSN: 1384-5810 , eISSN: 1573-756X

• Advances in Data Analysis and Classification

  Czasopisma

  ISSN: 1862-5347 , eISSN: 1862-5355

• COMPUTATIONAL STATISTICS & DATA ANALYSIS

  Czasopisma

  ISSN: 0167-9473 , eISSN: 1872-7352

• Statistical Analysis and Data Mining

  Czasopisma

  ISSN: 1932-1864 , eISSN: 1932-1872

• Journal of Open Archaeology Data

  Czasopisma

  ISSN: 2049-1565

• International Data Privacy Law

  Czasopisma

  ISSN: 2044-3994 , eISSN: 2044-4001

• IEEE Transactions on Big Data

  Czasopisma

  ISSN: 2332-7790

• INDUSTRIAL MANAGEMENT & DATA SYSTEMS

  Czasopisma

  ISSN: 0263-5577 , eISSN: 1758-5783

• Optoelectronics Instrumentation and Data Processing

  Czasopisma

  ISSN: 8756-6990 , eISSN: 1934-7944

• Journal of Data and Information Science

  Czasopisma

  ISSN: 2096-157X

• Big Data and Cognitive Computing

  Czasopisma

  eISSN: 2504-2289

• Big Data Mining and Analytics

  Czasopisma

  ISSN: 2096-0654

• Journal of Financial Data Science

  Czasopisma

  ISSN: 2640-3943 , eISSN: 2640-3951

• Journal of Open Psychology Data

  Czasopisma

  eISSN: 2050-9863

• Journal of Data Protection and Privacy

  Czasopisma

  ISSN: 2398-1679 , eISSN: 2398-1687

• Journal of Open Humanities Data

  Czasopisma

  eISSN: 2059-481X

• Journal of Finance and Data Science

  Czasopisma

  eISSN: 2405-9188

• Journal of Educational Data Mining

  Czasopisma

  eISSN: 2157-2100

• Data Analysis and Knowledge Discovery

  Czasopisma

  ISSN: 2096-3467

• Discovering relationships between data in an enterprise information system using log analysis

  Publikacja

  • Ł. Korzeniowski
  • K. Goczyła

  - Rok 2023

  Enterprise systems are inherently complex and maintaining their full, up-to-date overview poses a serious challenge to the enterprise architects’ teams. This problem encourages the search for automated means of discovering knowledge about such systems. An important aspect of this knowledge is understanding the data that are processed by applications and their relationships. In our previous work, we used application logs of an enterprise...

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• Sensitivity analysis of simple random beam models by means of Monte Carlo Methods using Variance Reductions Techniques

  Publikacja

  • J. Górski
  • M. Oziębło
  • K. Winkelmann

  - Rok 2013

  A probabilistic sensitivity analysis of two nonlinear bar structures is presented. The analysis is carried out on the basis of the Monte Carlo method. The imperfections of the structures and the applied loads are adapted as random variables. Based on all of the generated input variables, an output response of the system is sought. Afterwards, a coefficient responsible for the structure failure is calculated and the limit state...

• Facial data registration facility for biometric protection of electronic documents

  Publikacja

  • M. Maroszczyk
  • M. Pilecki
  • M. Szczypka

  - Rok 2014

  In modern world, information is crucial, and its leakage may lead to serious losses. Documents as the main medium of information must be therefore highly protected. Nowadays, the most common way of protecting data is using passwords, however it seems inconvenient to type complex passwords, when it is needed many times a day. For that reason a significant research has been conducted on biometric authentication...

• 20232024_Elective design II_CULTURAL HERITAGE ROUTES_Gdańsk Measuring the city, advanced digital surveying techniques for cultural heritage documentation

  Kursy Online

  • J. Borucka

  Cultural Heritage Routes – Gdańsk. This course explores challenges, conflicts and concepts of cultural heritage preservation and protection at urban level, their connection to architectural and urban design in the time of digitalisation and their importance for a future of the cities. The aim of this course, based on the case study city of Gdańsk, is to understand the problem of cultural heritage and develop innovative...

• Deep learning techniques for biometric security: A systematic review of presentation attack detection systems

  Publikacja

  • K. Shaheed
  • P. Szczuko
  • M. Kumar
  • I. Qureshi
  • Q. Abbas
  • I. Ullah

  - ENGINEERING APPLICATIONS OF ARTIFICIAL INTELLIGENCE - Rok 2024

  Biometric technology, including finger vein, fingerprint, iris, and face recognition, is widely used to enhance security in various devices. In the past decade, significant progress has been made in improving biometric sys- tems, thanks to advancements in deep convolutional neural networks (DCNN) and computer vision (CV), along with large-scale training datasets. However, these systems have become targets of various attacks, with...

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• Krzysztof Nyka dr hab. inż.

  Osoby

  Katedra Inżynierii Mikrofalowej i Antenowej

  Krzysztof Nyka, absolwent Wydziału Elektroniki Telekomunikacji i Informatyki Politechniki Gdańskiej (WETI PG), gdzie  uzyskał tytuł magistra inżyniera (1986, telekomunikacja) stopień doktora nauk technicznych (2002, elektronika) i doktora habilitowanego (2020 automatyka, elektronika i elektrotechnika). Obecnie jest zatrudniony na stanowisku profesora uczelni w Katedrze Inżynierii Mikrofalowej i Antenowej WETI PG. Zainteresowania...

• ECHOES REDUCTION DURING DIGITAL DATA TRANSMISSION IN HYDROACOUSTIC CHANNEL – LABORATORY EXPERIMENT

  Publikacja

  • A. Czapiewska
  • R. Studański
  • A. Żak
  • B. Żak

  - Rok 2019

  The possibility of using a hydroacoustic channel for digital data transmission is very limited. This is due to the effect of multipath propagation of the emitted acoustic wave and the damping of the mechanical wave in this medium, which increase with frequency. The first of these phenomena results in inter-symbol interference disturbances in data transmission systems, including even hundreds of symbols. Due to the number of reflections...

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• Unconventional and user-friendly sampling techniques of semi-volatile organic compounds present in an indoor environment: An approach to human exposure assessment

  Publikacja

  • M. Marć
  • B. Zabiegała

  - TRAC-TRENDS IN ANALYTICAL CHEMISTRY - Rok 2022

  The commonly applied solutions used to assess the potential risk of human exposure to semi-volatile organic compounds (SVOCs) are based on the investigation of biological samples collected in an invasive or non-invasive manner. For SVOCs, which are typically introduced to humans through the respiratory system, dermal adsorption, or digestive system, sampling solutions generally used in the indoor environments are classified as...

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• Structures for parameterization, meshing and data exchange of topologically related surfaces of a ship hull

  Publikacja

  • A. Kniat

  - Rok 2010

  This paper presents proposal of data structures for storage and processing of a parametric three-dimensional model of a midship hull sections. The model consists of coarse surfaces like: decks, frames, girders, stiffeners, brackets, partitions etc. bounded by topological relations. All workshop details are omitted as the model is intended for numeric calculations. Proposed data structures are prepared to facilitate changes in the...

• Composition of data visualizations by sub-bottom profiler and multibeam echosounder in Matlab

  Publikacja

  • G. Grelowska
  • E. Kozaczka
  • K. Buszman

  - HYDROACOUSTICS - Rok 2010

  This paper contains description of procedure, which was elaborated in a numerical computing environment Matlab. The result of these procedures is a graphical composition of images obtained from two different hydroacoustic devices. It enables to compare different types of visualizations for the same geographical position and simultaneous work with graphical representation of all data types.

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• Improved Uniform Sampling in Constrained Domains for Data-Driven Modelling of Antennas

  Publikacja

  • S. Kozieł
  • A. Sigursson

  - Rok 2018

  Data-driven surrogate modelling of antenna structures is an attractive way of accelerating the design process, in particular, parametric optimization. In practice, construction of surrogates is hindered by curse of dimensionality as well as wide ranges of geometry parameters that need to be covered in order to make the model useful. These difficulties can be alleviated by constrained performance-driven modelling with the surrogate...

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• SDN testbed for validation of cross-layer data-centric security policies

  Publikacja

  • K. Wrona
  • M. Amanowicz
  • S. Szwaczyk
  • K. Gierłowski

  - Rok 2017

  Software-defined networks offer a promising framework for the implementation of cross-layer data-centric security policies in military systems. An important aspect of the design process for such advanced security solutions is the thorough experimental assessment and validation of proposed technical concepts prior to their deployment in operational military systems. In this paper, we describe an OpenFlow-based testbed, which was...

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• Rozważania nad procesem stanowienia prawa w Polsce i Chinach na przestrzeni wieków. Wybrane zagadnienia

  Publikacja

  • I. Szpotakowski

  - Rok 2020

  Niniejsza monografia jest zbiorem rozdziałów poświęconych zarówno historii prawa polskiego, jak i prawa chińskiego. Zakreślone w ten sposób szerokie pole badawcze umożliwiło tym samym zróżnicowany przegląd rozważań nad procesem stanowienia prawa w Polsce i Chinach na przestrzeni wielu wieków. Zakres tematyczny poszczególnych rozdziałów jest odzwierciedleniem prowadzonych badań oraz zainteresowań naukowych poszczególnych autorów...

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• Isolation of Bacteriocin-producing Staphylococcus spp. Strains from Human Skin Wounds, Soft Tissue Infections and Bovine Mastitis

  Publikacja

  • Z. Magdalena
  • J. Churey
  • R. Worobo
  • S. Milewski
  • P. Szweda

  - Polish Journal of Microbiology - Rok 2018

  A collection of 206 Staphylococcus spp. isolates was investigated for their ability to produce compounds exhibiting antistaphylococcal activity. This group included Staphylococcus aureus, Staphylococcus epidermidis, Staphylococcus xylosus strains recovered from bovine mastitis (n = 158) and human skin wounds and soft tissues infections (n = 48). Production of substances with antimicrobial activity was observed in six strains. Five...

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• Concentration levels of selected analytes in the gas phase of an e-cigarette aerosol

  Publikacja

  • J. Aszyk
  • M. K. Woźniak
  • P. Kubica
  • A. Kot-Wasik
  • A. Wasik

  - MICROCHEMICAL JOURNAL - Rok 2019

  The aerosols generated from e-cigarettes are composed of liquid and gas phases resulting from vapourized e-liquid. The apportioning of substances from e-liquid into the liquid and gas phases during e-cigarette use has not been extensively studied. Partitioning of e-liquid components between the gas and the liquid phase of the aerosol influences the substances inhaled and exhaled by the users, leading to second-hand exposure. It...

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• Impact of AI-Based Tools and Urban Big Data Analytics on the Design and Planning of Cities

  Publikacja

  • D. D. Kamrowska-Załuska

  - Land - Rok 2021

  Wide access to large volumes of urban big data and artificial intelligence (AI)-based tools allow performing new analyses that were previously impossible due to the lack of data or their high aggregation. This paper aims to assess the possibilities of the use of urban big data analytics based on AI-related tools to support the design and planning of cities. To this end, the author introduces a conceptual framework to assess the...

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• Exploring Relationships Between Data in Enterprise Information Systems by Analysis of Log Contents

  Publikacja

  • Ł. Korzeniowski
  • K. Goczyła

  - Rok 2024

  Enterprise systems are inherently complex and maintaining their full, up-to-date overview poses a serious challenge to the enterprise architects’ teams. This problem encourages the search for automated means of discovering knowledge about such systems. An important aspect of this knowledge is understanding the data that are processed by applications and their relationships. In our previous work, we used application logs of an enterprise...

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• Low-Cost Data-Driven Surrogate Modeling of Antenna Structures by Constrained Sampling

  Publikacja

  • S. Kozieł

  - IEEE Antennas and Wireless Propagation Letters - Rok 2016

  Full-wave electromagnetic (EM) analysis has become one of the major design tools for contemporary antenna structures. Although reliable, it is computationally expensive which makes automated simulation-driven antenna design (e.g., parametric optimization) difficult. This difficulty can be alleviated by utilization of fast and accurate replacement models (surrogates). Unfortunately, conventional data-driven modeling of antennas...

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• A Comparative Study on Methods of Distinction Between Near- and Far-Side Defects as Techniques Used Alongside with the Magnetic Flux Leakage Testing

  Publikacja

  • Z. Usarek
  • M. Chmielewski
  • L. Piotrowski

  - JOURNAL OF NONDESTRUCTIVE EVALUATION - Rok 2022

  Results of the finite element analysis show that a far-side defect in a steel plate, with the depth greater by 10% of the plate thickness than a near-side defect, can produce a very similar magnetic flux leakage (MFL) signal. Due to the fact that a measurement of MFL itself can lead to misclassification of a far-side defect as a near-side one, and thus to underestimation of its depth, a comparative study of three complementary...

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• Simulation of parallel similarity measure computations for large data sets

  Publikacja

  • P. Czarnul
  • P. Rościszewski
  • M. Matuszek
  • J. Szymański

  - Rok 2015

  The paper presents our approach to implementation of similarity measure for big data analysis in a parallel environment. We describe the algorithm for parallelisation of the computations. We provide results from a real MPI application for computations of similarity measures as well as results achieved with our simulation software. The simulation environment allows us to model parallel systems of various sizes with various components...

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• A coarse‐grained approach to NMR ‐data‐assisted modeling of protein structures

  Publikacja

  • E. Lubecka
  • A. Liwo

  - JOURNAL OF COMPUTATIONAL CHEMISTRY - Rok 2022

  The ESCASA algorithm for analytical estimation of proton positions from coarse-grained geometry developed in our recent work has been implemented in modeling protein structures with the highly coarse-grained UNRES model of polypeptide chains (two sites per residue) and nuclear magnetic resonance (NMR) data. A penalty function with the shape of intersecting gorges was applied to treat ambiguous distance restraints, which automatically...

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• Comparison of extraction techniques of robenidine from poultry feed samples

  Publikacja

  • J. Wilga
  • A. Kot-Wasik
  • J. Namieśnik

  - Talanta - Rok 2007

  W publikacji opisano wykorzystanie różnych technik ekstrakcji kokcydistatyków (na przykładzie robenidyny) z próbek pasz zwierzęcych. W trakcie badań porównano wpływ różnych parametrów ekstrakcji na współczynniki odzysku analitu. Wśród wykorzystanych technik ekstrakcji wymienić należy: ekstrakcję za pomocą rozpuszczalnika wspomaganą ultradźwiękami oraz mikrofalami, ekstrakcję w aparatach Soxhleta i Soxteca a także ekstrakcję przez...

• Applications of sample preparation techniques in the analysis of pesticides and PCBS in food

  Publikacja

  • A. Beyer
  • M. Biziuk

  - FOOD CHEMISTRY - Rok 2008

  Pestycydy oraz anality z grupy polichlorowanych bifenyli (PCB), można znaleźć w żywności w niewielkich stężeniach, jednak ich zdolność do kumulacji i toksyczność powodują konieczność oznaczanie tych związków w żywności. Analiza próbek żywności pod kątem obecności pestycydów i analitów z grupy PCB przysparza wiele trudności ze względu na specyfikę przygotowania próbki w oparciu o wieloetapowe operacje oczyszczania próbki zawierającej...

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• Applications of compression techniques for reducing the size of multibeam sonar records

  Publikacja

  • A. Chybicki
  • M. Moszyński
  • P. Poćwiardowski

  - Rok 2008

  Jednym z najczęściej używanych urządzeń służących do szeroko rozumianego telemonitoringu morskiego są sonary wielowiązkowe (ang. Multibeam systems - MBS). Ich wysoka wydajność w tworzeniu informacji o obiektach znajdujących się pod wodą skutkuje w dużych ilościach danych pozyskiwanych podczas rejsów badawczych i pomiarowych. W tym kontekście, proces przechowywania i zarządzania takim magazynem danych staje się istotnym problemem...

• Comparison of Volatile Constituents ofAcorus calamusandAsarum europaeumObtained by Different Techniques

  Publikacja

  • A. Wilczewska
  • M. Ulman
  • Z. Chilmończyk
  • J. Maj
  • T. Koprowicz
  • M. Tomczyk
  • M. Tomczykowa

  - JOURNAL OF ESSENTIAL OIL RESEARCH - Rok 2008

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• Computational Techniques in Numerical Simulations of Arc and Laser Welding Processes

  Publikacja

  • T. Kik

  - Materials - Rok 2020

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