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Wyniki wyszukiwania dla: data-rasterization

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Wyniki wyszukiwania dla: data-rasterization

  • A comprehensive review of open data platforms, prevalent technologies, and functionalities

    Publikacja

    - Rok 2022

    Open data can play a crucial role in different sectors of the world,such as government, science, research, technology, culture, andfinance. There are several necessary measures that every organiza-tion needs to consider before opening data. There are three majorsteps to opening the data: (1) Preparation stage, and (2) launchingthe open data initiative (3) In this case, the feedback mechanismstudy such as expand and sustain stage,...

  • METHODS FOR THE IDENTIFICATION OF CYBER RISKS: AN ANALYSIS BASED ON PATENT DATA

    Publikacja
    • L. Klapkiv
    • Y. Klapkiv

    - CBU International Conference Proceedings - Rok 2018

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  • Music Data Processing and Mining in Large Databases for Active Media

    Publikacja

    - Rok 2014

    The aim of this paper was to investigate the problem of music data processing and mining in large databases. Tests were performed on a large data-base that included approximately 30000 audio files divided into 11 classes cor-responding to music genres with different cardinalities. Every audio file was de-scribed by a 173-element feature vector. To reduce the dimensionality of data the Principal Component Analysis (PCA) with variable...

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  • Data Model Development for Security Information Sharing in Smart Grids

    Publikacja

    - International Journal for Information Security Research - Rok 2014

    The smart grid raises new security concerns which require novel solutions. It is commonly agreed that to protect the grid, the effective collaboration and information sharing between the relevant stakeholders is prerequisite. Developing a security information sharing platform for the smart grid is a new research direction which poses several challenges related to the highly distributed and heterogeneous character of the grid. In...

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  • Simulation of parallel similarity measure computations for large data sets

    Publikacja

    - 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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  • Big Data Processing by Volunteer Computing Supported by Intelligent Agents

    Publikacja

    - Rok 2015

    In this paper, volunteer computing systems have been proposed for big data processing. Moreover, intelligent agents have been developed to efficiency improvement of a grid middleware layer. In consequence, an intelligent volunteer grid has been equipped with agents that belong to five sets. The first one consists of some user tasks. Furthermore, two kinds of semi-intelligent tasks have been introduced to implement a middleware...

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  • Three-dimensional representation of geographic data in a Web-based GIS

    Publikacja

    - HYDROACOUSTICS - Rok 2013

    Presenting geographic data in a web environment has been a long standing problem. For many years the low performance of web browsers has limited the visualization of spatial data to only two dimensions. More recently, the introduction of open standards for 3D acceleration of web applications sparked the emergence of new methods of presenting three-dimensional data in a web browser without using third-party extensions. However,...

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  • 3D Imaging Of Underwater Objects Using Multi-Beam Data

    Publikacja

    - HYDROACOUSTICS - Rok 2014

    One of the main applications of multibeam sonars is high resolution bathymetry measurement, as well as detecting and imaging of underwater objects like shipwrecks. In order to obtain the visualisation quality good enough to allow the researcher to investigate an object in more detail, the approach relying on construction of three-dimensional model of an imaged object, e.g. consisting of nodes, edges and plane elements (facets)...

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  • Real-Time Multimedia Stream data Processing in a Supercomputer Environment

    Publikacja

    - Rok 2012

    Rozdział opisuje doświadczenia uzyskane przez autorów podczas pracy w projekcie MAYDAY EURO 2012. Przedstawiono główny cel projektu - stworzenie systemu umożliwiającego rozwijanie i równolegle wykonywanie usług multimedialnych w środowisku klastra obliczeniowego dużej mocy. opisano tematykę przetwarzania dużej liczby strumieni multimedialnych na komputerach dużej mocy. Następnie zaprezentowano możliwości platformy KASKADA: tworzenie...

  • Generating training data for SART-2 keystroke analysis module

    Publikacja

    - Zeszyty Naukowe Wydziału ETI Politechniki Gdańskiej. Technologie Informacyjne - Rok 2010

    Analiza dynamiki pisania na klawiaturze jest jedną z technik biometrycznych, które uwzględniają cechy behawioralne. Trudność związana z informacja na temat dynamiki pisania na klawiaturzepolega na tym, że są to dane bardzo niestabilne. Artykuł prezentuje krótko rozwiązanie wykorzystane w celu zbierania danych uczących oraz ekstrakcji cech dla systemu uwierzytelniania użytkownika na podstawie sposobu korzystania z klawiatury. Następnie...

  • Open Data Capability Architecture - An Interpretive Structural Modeling Approach

    Publikacja

    - Rok 2020

    Despite of increasing availability of open data as a vital organizational resource, large numbers of startups and organizations fail when it comes to utilizing open data effectively. This shortcoming is attributable to the poor understanding of what types of capabilities are required to successfully conduct data related activities. At the same time, research on open data capabilities and how they relate to one another remains sparse....

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  • Shoreline Extraction Based on LiDAR Data Obtained Using an USV

    Publikacja

    - TransNav - The International Journal on Marine Navigation and Safety of Sea Transportation - Rok 2023

    This article explores the use of Light Detection And Ranging (LiDAR) derived point clouds to extract the shoreline of the Lake Kłodno (Poland), based on their geometry properties. The data collection was performed using the Velodyne VLP‐16 laser scanner, which was mounted on the HydroDron Unmanned Surface Vehicle (USV). A modified version of the shoreline extraction method proposed by Xu et al. was employed, comprising of the following...

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  • Platelet RNA Sequencing Data Through the Lens of Machine Learning

    Publikacja

    - Cancers - Rok 2023

    Liquid biopsies offer minimally invasive diagnosis and monitoring of cancer disease. This biosource is often analyzed using sequencing, which generates highly complex data that can be used using machine learning tools. Nevertheless, validating the clinical applications of such methods is challenging. It requires: (a) using data from many patients; (b) verifying potential bias concerning sample collection; and (c) adding interpretability...

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  • Applications of Chebyszehev minimax deconvolution filtering to the estimation of deterended data

    Publikacja

    - Rok 2005

    W pracy wyznaczono empirycznie, że sygnał wyjściowy rozplotowego filtru względem nieparzystej pary impulsów Kroneckera , z użyciem minimaksowej normy Czebyszewa, jest bardzo "bliski" pozbawionemu trendu sygnałowi wejściowemu. Obliczenia dla znacząco dużej liczby rzeczywistych danych z rynków kapitałowych i walutowych wykazały, że średnia miara rzeczonej "bliskości" , określona definicją znormalizowanego w L2 współczynnika kowariancji,...

  • Nondestructive global corrosion measurement using guided wavefield data

    Publikacja

    - MEASUREMENT - Rok 2024

    Metallic structures often face degradation, and corrosion ranks among the most prevalent forms of deterioration. Accurate quantification of corrosion is crucial, especially for structures exposed to harsh environmental conditions, such as marine vessels and offshore installations. Because the traditional measurement methods based on scanning by ultrasonic gauge are time-consuming and provide only rough information on the thickness...

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  • Elipsometric data analysis used in on-line metal passivation monitoring

    Publikacja

    - The European Physical Journal-Special Topics - Rok 2007

    Wykorzystano technikę elipsometrii monochromatycznej do opisu on-line warstw tlenkowych, elektroosadzanych na miedzi. Elipsometria jest w stanie dostarczyć informacji odnośnie grubości i współczynników załamania światła układów warstwowych, jednakże wymagane w tym celu jest zbudowanie matematycznego modelu odwzorowującego stałe optyczne układu badanego. W powyższej pracy przedyskutowane zostały różne metody dopasowywania modelu...

  • The atherosclerotic heart disease and protecting properties of garlic: contemporary data

    Publikacja
    • S. Gorinstein
    • Z. Jastrzebski
    • J. Namieśnik
    • H. Leontowicz
    • M. Leontowicz
    • S. Trakhtenberg

    - MOLECULAR NUTRITION & FOOD RESEARCH - Rok 2007

    Artykuł jest pracą przeglądową zawierającą najnowsze dane dotyczące choroby serca w przebiegu miażdżycowym oraz ochonnych właściwości czosnku. Obecnie prowadzone badania wykazały fundamentalną rolę jaką odgrywa czosnek we wszystkich stadiach choroby. Liczne badania in-vitro potwierdzają zdolność czosnku do redukcji parametrów zachorowania na choroby serca w przebiegu miażdżycy: całkowity cholesterol, LDL, trigliceryny, utlenione...

  • Harmonization and Quality Assurance of Income and Wealth Data: The Case of LIS.

    Publikacja

    - Rok 2023

    Comparability of concepts in survey data harmonization is essential for scientific analyses. LIS – also known as the Luxembourg Income Study or LIS Cross-National Data Center in Luxembourg – acquires and harmonizes income and wealth microdata to provide the scientific community with a comparable database that is unique in the world in its growing temporal and geographic breadth. Over many decades, scholars worldwide have used the...

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  • Analysis of data fusion algorithms for the vessel with the dynamic positioning system

    Publikacja

    - Przegląd Elektrotechniczny - Rok 2022

    The dynamic positioning (DP) system on the vessel is operated to control the position and heading of the vessel with the use of propellers and thrusters installed on the board. On DP vessels redundant measurement systems of position, heading and the magnitude and direction of environmental forces are required for safety at sea. In this case, a fusion of data is needed from individual measurement devices. The article proposes a...

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  • Integration of inertial sensors and GPS system data for underwater navigation

    Publikacja

    - HYDROACOUSTICS - Rok 2012

    The Inertial Navigation System (INS) is usually employed to determine the position of an underwater vehicles, like Remotely Operated Vehicles (ROV) and, more recently, Autonomous Underwater Vehicle (AUV). The accuracy of the position provided by the INS, which uses accelerometers and gyroscopes, deteriorates with time. An external aiding sources such as the Global Positioning System (GPS) can be employed to reduce the error growth...

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  • Shadow Economy in Poland Recent Evidence Based on Survey Data

    Publikacja

    - Rok 2021

    The book provides an estimate of the size of the shadow economy in Poland. Using analogous data, it traces core determinants of the existence of the shadow economy in Poland. It compares results with neighbouring countries, and if possible, the remaining Central-Eastern economies. The book tells why the problem of the unreported economic activity matters; it presents the problem from different angles―economic, social and institutional....

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  • The Importance of Demand and Environment for Defining and Establishing the Role of Data Stewards

    Publikacja

    - Rok 2022

    Data stewardship is now a central part of FAIR research data management. Although various types of positions called data stewards have been created at academic institutions over the last years, no demand-oriented, formal model of data stewardship and the associated roles exist so far. This workshop report presents the outcomes of the panel discussion “The Importance of Demand and Environment for Defining Data Stewardship” held...

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  • Towards a Framework for Context Awareness Based on Textual Process Data

    Publikacja

    - Rok 2023

    Context awareness is critical for the successful execution of processes. In the abundance of business process management (BPM) research, frameworks exclusively devoted to extracting context from textual process data are scarce. With the deluge of textual data and its increasing value for organizations, it be-comes essential to employ relevant text analytics techniques to increase the awareness of business process (BP) workers,...

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  • Facial data registration facility for biometric protection of electronic documents

    Publikacja

    - 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...

  • Export diversification and economic development: a dynamic spatial data analysis

    Publikacja

    - Gecomplexity Discussion Papers - Rok 2015

    This paper contributes to the empirical literature on the relationship between ‘export variety’ (export diversification) and economic development by relaxing the assumption of cross-country independence and allowing for spatial diffusion of shocks in observed and unobserved factors. Export variety is measured for a balanced panel of 114 countries (1992-2012) using very detailed information on their exports (HS 6-digit product...

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  • Improving css-KNN Classification Performance by Shifts in Training Data

    Publikacja

    - Rok 2015

    This paper presents a new approach to improve the performance of a css-k-NN classifier for categorization of text documents. The css-k-NN classifier (i.e., a threshold-based variation of a standard k-NN classifier we proposed in [1]) is a lazy-learning instance-based classifier. It does not have parameters associated with features and/or classes of objects, that would be optimized during off-line learning. In this paper we propose...

  • Emulator and simulator of Terma SCANTER and ARPA radar data server

    Publikacja

    - Zeszyty Naukowe Akademii Marynarki Wojennej - Rok 2019

    The software solutions presented in this paper generate real-time data compatible with ARPA radar standard as well as Terma SCANTER 2001 radar cooperating with Video Distribution and Tracking (VDT) server. Two different approaches to this problem are considered: emulation based on the data captured from real devices and simulation of objects on the sea. For both of them architecture, implementation details and functional test results...

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  • Methods of data extraction from sub-bottom profiler's signal

    Publikacja

    - HYDROACOUSTICS - Rok 2010

    Data obtain during sounding Gdansk Bay with SES-2000 Standard parametric sub-bottom profiler has two types of information: envelope and pure signal. First is used to plot echograms in real time and contain envelope of echo. The second one is stored during sounding and can be processed after recording data. Comparison of results will be shown and discussed. First step in investigation was proper configuration of small measurement...

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  • Using wavelet techniques for multibeam sonar bathymetry data compression

    Publikacja

    - HYDROACOUSTICS - Rok 2010

    Multibeam sonars are widely used in applications like high resolution bathymetry measurements or underwater object imaging. One of the significant problems in multibeam sensing of the marine environment is large amount of data which must be transmitted from the sonar processing unit to an operator station using a limited bit rate channel. For instance, such a situation would be in the case when the multibeam sonar was mounted on...

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  • Big Data and the Internet of Things in Edge Computing for Smart City

    Publikacja

    - Rok 2019

    Requests expressing collective human expectations and outcomes from city service tasks can be partially satisfied by processing Big Data provided to a city cloud via the Internet of Things. To improve the efficiency of the city clouds an edge computing has been introduced regarding Big Data mining. This intelligent and efficient distributed system can be developed for citizens that are supposed to be informed and educated by the...

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  • EASY ACCESS TOOL FOR SMALL INTERFERING RNA (siRNA) DATA

    Publikacja

    - Rok 2015

    For many decades it was an accepted dogma of molecular genetics that the expression of genes is a “one-way-road” leading only in one direction from DNA to RNA to proteins. Recent discoveries in modern molecular genetics have challenged this dogma showing that specific RNA molecules play a central role in controlling the activity of genes by changing the structure of DNA sequences, targeting other RNAs for degradation or blocking...

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  • Integration, Processing and Dissemination of LiDAR Data in a 3D Web-GIS

    Publikacja

    - ISPRS International Journal of Geo-Information - Rok 2019

    The rapid increase in applications of Light Detection and Ranging (LiDAR) scanners, followed by the development of various methods that are dedicated for survey data processing, visualization, and dissemination constituted the need of new open standards for storage and online distribution of collected three-dimensional data. However, over a decade of research in the area has resulted in a number of incompatible solutions that offer...

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  • THE 3D MODEL OF WATER SUPPLY NETWORK WITH APPLICATION OF THE ELEVATION DATA

    Publikacja

    - Rok 2017

    3D visualization is a key element of research and analysis and as the source used by experts in various fields e.g.: experts from water and sewage systems. The aim of this study was to visualize in three-dimensional space model of water supply network with relief. The path of technological development of GESUT data (Geodezyjna Ewidencja Sieci Uzbrojenia Terenu – geodetic records of public utilities) for water supply and measurement...

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  • Data augmentation for improving deep learning in image classification problem

    Publikacja

    - Rok 2018

    These days deep learning is the fastest-growing field in the field of Machine Learning (ML) and Deep Neural Networks (DNN). Among many of DNN structures, the Convolutional Neural Networks (CNN) are currently the main tool used for the image analysis and classification purposes. Although great achievements and perspectives, deep neural networks and accompanying learning algorithms have some relevant challenges to tackle. In this...

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  • Processing of Hydroacoustic and LiDAR Data for Three-dimensional Surface Reconstruction

    Publikacja

    - Zeszyty Naukowe Wydziału ETI Politechniki Gdańskiej. Technologie Informacyjne - Rok 2018

    The technologies of sonar and laser scanning are commonly used for obtaining spatial information about underwater and over ground environments in the form of point clouds. Since this data model has known disadvantages, a more practical solution of visualising such data involves the creation of solid three-dimensional meshes composed of edges and facets. In this paper, several methods for 3D shape reconstruction of data obtained...

  • Automatic Clustering of EEG-Based Data Associated with Brain Activity

    Publikacja

    - Rok 2018

    The aim of this paper is to present a system for automatic assigning electroencephalographic (EEG) signals to appropriate classes associated with brain activity. The EEG signals are acquired from a headset consisting of 14 electrodes placed on skull. Data gathered are first processed by the Independent Component Analysis algorithm to obtain estimates of signals generated by primary sources reflecting the activity of the brain....

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  • Combining Road Network Data from OpenStreetMap with an Authoritative Database

    Publikacja

    - Journal of Transportation Engineering, Part A: Systems - Rok 2019

    Computer modeling of road networks requires detailed and up-to-date dataset. This paper proposes a method of combining authoritative databases with OpenStreetMap (OSM) system. The complete route is established by finding paths in the graph constructed from partial data obtained from OSM. In order to correlate data from both sources, a method of coordinate conversion is proposed. The algorithm queries road data from OSM and provides...

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  • EvOLAP Graph – Evolution and OLAP-Aware Graph Data Model

    Publikacja

    - Rok 2018

    The objective of this paper is to propose a graph model that would be suitable for providing OLAP features on graph databases. The included features allow for a multidimensional and multilevel view on data and support analytical queries on operational and historical graph data. In contrast to many existing approaches tailored for static graphs, the paper addresses the issue for the changing graph schema. The model, named Evolution...

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  • Urban Freight Transport Demand Modelling and Data Availability Constraints

    Publikacja

    - Rok 2018

    The paper provides a review of urban freight transport demand modelling approaches confronted with constrains regarding adequate data provision from a perspective of the local authorities. Demand estimation models has been selected as a reference because they are the most representative in terms of inclusion of urban freight indicators which can be transformed into a decision-support tool for evaluation of freight measures. The...

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  • Fragmentation of Hydrographic Big Data Into Subsets During Reduction Process

    Publikacja

    - Rok 2017

    The article presented problems of fragmentation of hydrographic big data into smaller subsets during reduction process. Data reduction is a processing of reduce the value of the data set, in order to make them easier and more effective for the goals of the analysis. The main aim of authors is to create new reduction method. The article presented the first stage of this method – fragmentation of bathymetric data into subsets. It...

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  • Export diversification and economic development: A dynamic spatial data analysis

    Publikacja

    - Review of International Economics - Rok 2018

    This paper contributes to the empirical literature on the relationship between “export variety” (export diversification) and economic development by relaxing the assumption of cross-country independence and allowing for spatial diffusion of shocks in observed and unobserved factors. Export variety is measured for a balanced panel of 114 countries (1992–2012) using very detailed information on their exports (HS 6-digit product level)....

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  • Artysta i analityk. Big data w przestrzeni kultury

    Publikacja

    - Rok 2015

    Tekst rozważa rolę Big Data - ogromnych zbiorów danych - w badaniu kultury oraz w jej tworzeniu. Przedmiotem analiz jest również wpływ tej technologii na twórczość artystyczną, w tym na współczesną architekturę i urbanistykę. Przedstawione zostały scenariusze potencjalnej przyszłej roli Big Data w społeczeństwie.

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  • Web-based 3D processing and dissemination of multibeam sonar data

    Publikacja

    - HYDROACOUSTICS - Rok 2016

    The continuous detailed surveys of the various water bodies over time produce a large and ever-increasing volume and density of underwater sounding data. Three-dimensional data, such as those obtained by multibeam sonar systems, are quite complex to manage, and thus their growing numbers increase the pressure on development of new solutions dedicated to processing them. This paper presents a concept system for web-based dissemination...

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  • Analysis of High Resolution Clouds of Points as a Source of Biometric Data

    Publikacja

    - Rok 2016

    The article presents the analysis devoted to human face data obtained by means of precise photographic scanners. Collected point clouds were used to make high precision meshes of human face. The essence of these studies is the comparison of relative features as well as the comparison of absolute models which require as precisely as possible matching of face models. The article focuses on the analysis of various parts of the human...

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  • Model of an Integration Bus of Data and Ontologies of Smart Cities Processes

    Publikacja

    - LNCS Transactions on Computational Collective Intelligence - Rok 2016

    This paper presents a model of an integration bus used in the design of Smart Cities system architectures. The model of such a bus becomes necessary when designing high-level architectures, within which the silo processes of the organization should be seen from the perspective of its ontology. For such a bus to be used by any city, a generic solution was proposed which can be implemented as a whole or in part depending on the requirements...

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  • ACM Transactions on Knowledge Discovery from Data

    Czasopisma

    ISSN: 1556-4681 , eISSN: 1556-472X

  • International Journal of Business Data Communications and Networking

    Czasopisma

    ISSN: 1548-0631 , eISSN: 1548-064X

  • International Journal of Multimedia Data Engineering & Management

    Czasopisma

    ISSN: 1947-8534 , eISSN: 1947-8542

  • International Journal of Spatial Data Infrastructures Research

    Czasopisma

    ISSN: 1725-0463

  • International Journal of Data Mining Modelling and Management

    Czasopisma

    ISSN: 1759-1163 , eISSN: 1759-1171