Wyniki wyszukiwania dla: DATA PRE-PROCESSING

• Algorithms for query processing in a distributed knowledge integration system

  Publikacja

  • K. Goczyła
  • T. Zawadzka

  - Rok 2008

  Głównym celem artykułu jest wprowadzenie modelu systemu integracji wiedzy. Przedstawiony model jest oparty na modelu Calvanese i rozszerza go o wielowarstwowy model integracji. W artykule pokazano również użycie Kartograficznej Reprezentacji Wiedzy do przechowywania i przetwarzania ontologii w źródłach wiedzy oraz do budowania odwzorowań pomiędzy ontologiami. Odwzorowania pomiędzy ontologiami budowane w oparciu o odwzorowywanie...

• QUALITY OF SWEET POTATO AS A RAW MATERIAL FOR FOOD PROCESSING

  Publikacja

  • B. Sawicka
  • B. Krochmal-Marczak
  • D. Skiba
  • P. Pszczółkowski

  - RURAL DEVELOPMENT 2019 - Rok 2020

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• Analytical and legislative challenges of sewage sludge processing and management

  Publikacja

  • B. Cieślik
  • L. Świerczek
  • P. Konieczka

  - MONATSHEFTE FUR CHEMIE - Rok 2018

  This article presents the most popular methods of sewage sludge management and analytical techniques which could be a powerful tool in designing new sewage sludge management methods. Chemical analysis is also described as a vital point at the subsequent stages of technological processes control and sewage sludge quality assessment. It is also an instrument essential to maintaining control of processed sewage sludge introduced to...

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• CMOS realisation of analogue processor for early vision processing

  Publikacja

  • W. Jendernalik
  • J. Jakusz
  • G. Blakiewicz
  • R. P. Piotrowski

  - Bulletin of the Polish Academy of Sciences-Technical Sciences - Rok 2011

  The architecture concept of a high-speed low-power analogue vision chip, which performs low-level real-time image algorithms ispresented. The proof-of-concept prototype vision chip containing 32 × 32 photosensor array and 32 analogue processors is fabricated usinga 0.35 μm CMOS technology. The prototype can be configured to register and process images with very high speed, reaching 2000 framesper second, or achieve very low power...

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• Wow detection and compensation employing spectral processing of audio.

  Publikacja

  • A. Czyżewski
  • P. Maziewski
  • M. Dziubiński
  • A. Kaczmarek
  • B. Kostek

  - Rok 2004

  Praca zawiera opis opracowanych algorytmów detekcji i kompensacji pasożytniczych modulacji częstotliwości wynikających z nierównomiernego przesuwu nośnika dźwięku. Proponowane metody opracowano ze szczególnym uwzględnieniem przypadkowych zniekształceń drżenia obecnych w archiwalnych filmowych ścieżkach dźwiękowych. Dodatkowo algorytmy badają wpływ zniekształceń na strukturę formantową sygnałów. Analiza zmian położenia formantów...

• Processing of musical metadata employing Pawlak's flow graphs.

  Publikacja

  • B. Kostek
  • A. Czyżewski

  - Rok 2004

  W artykule przedstawiono problemy wyszukiwania informacji muzycznej. W eksperymentach posłużono się meta opisem oraz wykorzystano metodę grafów przepływowych Pawlaka. Opisano skonstruowaną bazę nagrań muzycznych. Słowa kluczowe: meta opis, wyszukiwanie informacji muzycznej, baza danych muzycznych

• Music Archive Metadata Processing Based on Flow Graphs.

  Publikacja

  • B. Kostek
  • A. Czyżewski

  - Rok 2004

  W referacie zaproponowano metodykę wyszukiwania informacji muzycznej w bazach internetowych w oparciu o meta opis. Skonstruowany algorytm wykorzystuje grafy przepływowe Pawlaka.

• The cartographer algorithm for processing and querying description logics ontologies

  Publikacja

  • K. Goczyła
  • T. M. Grabowska
  • M. Zawadzki
  • W. Waloszek

  - Rok 2005

  Logika opisowa jest jednym z najbardziej popularnych formalizmów opisu wiedzy. Jej popularność jeszcze wzrosła kiedy pojawił się standard języka OWL. W artykule zaprezentowano nowy algorytm wnioskowania - algorytm kartograficzny - umożliwiający wnioskowanie niejawnie podanej wiedzy z terminologii (TBox) i opisu świata (ABox). Opisano sposób przetwarzania ontologii w terminach sygnatur binarnych i efektywny sposób odpytywania ontologii...

• Modelling, thermography and digital processing of energy conversion processes

  Publikacja

  • J. Stąsiek

  - Rok 2005

  W pracy przedstawiono zagadnienia modelowania fizycznego i numerycznego procesów wymiany ciepła i konwersji energii. Do analizy wymiany ciepła w przestrzeni wypełnionej płynem zastosowano termografie krystaliczne i komputerowy system analizy otrzymanych laserowych obrazów. Wykonano również termogramy powierzchni pokrytych także ciekłokrystaliczniei jako przykład przeanalizowano rozkład temperatury na powierzchniach ciał stałych...

• Statistical analysis for digital processing of pelagic fish echoes

  Publikacja

  • M. Moszyński

  - Rok 2005

  Praca poświęcona jest zastosowaniu metod odwrotnych w akustyce rybackiej, a w szczególności ich adaptacji do estymacji rozkładu siły celu ryb, która to wielkość jest akustycznym parametrem charakteryzującym zdolność rozpraszania ryb oraz rozkładu ich długości, będącym ich fizycznym parametrem.

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• Impact of digital signal processing on FOC current feedback in high-speed PMSM drive

  Publikacja

  • L. Jarzębowicz
  • M. Gutten

  - Rok 2019

  In applications where size and weight of the electric motor are among major design concerns, Permanent Magnet Synchronous Motors (PMSMs) with wide operational speed-range are commonly preferred. Due to limited inverter switching frequency, high-speed operation of a drive results in a low ratio between the switching frequency and the fundamental frequency of motor voltage. Such operating conditions have been recently identified...

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• Towards High-Value Datasets Determination for Data-Driven Development: A Systematic Literature Review

  Publikacja

  • A. Nikiforova
  • N. Rizun
  • M. Ciesielska
  • C. H. Alexopoulos
  • A. Miletić

  - Rok 2023

  Open government data (OGD) is seen as a political and socio-economic phenomenon that promises to promote civic engagement and stimulate public sector innovations in various areas of public life. To bring the expected benefits, data must be reused and transformed into value-added products or services. This, in turn, sets another precondition for data that are expected to not only be available and comply with open data principles,...

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• Ontological Model for Contextual Data Defining Time Series for Emotion Recognition and Analysis

  Publikacja

  • T. Zawadzka
  • W. Waloszek
  • A. Karpus
  • S. Zapalowska
  • M. Wróbel

  - IEEE Access - Rok 2021

  One of the major challenges facing the field of Affective Computing is the reusability of datasets. Existing affective-related datasets are not consistent with each other, they store a variety of information in different forms, different formats, and the terms used to describe them are not unified. This paper proposes a new ontology, ROAD, as a solution to this problem, by formally describing the datasets and unifying the terms...

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• Mitigation of Fake Data Content Poisoning Attacks in NDN via Blockchain

  Publikacja

  • S. Barański
  • J. Konorski

  - Rok 2020

  Abstract—Information-centric networks struggle with content poisoning attacks (CPAs), especially their stronger form called Fake Data CPA, in which an intruder publisher uploads content signed with stolen credentials. Following an existing graphinfection based approach leveraging the constrained time when stolen credentials are useful, we design a blockchain-based mitigation scheme for Named Data Networking architectures. We postulate...

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• Towards rainfall interception capacity estimation using ALS LiDAR data

  Publikacja

  • T. E. Berezowski
  • J. Chormanski
  • M. Kleniewska
  • S. Szporak-Wasilewska

  - Rok 2015

  In this study we develop a spatial model for interception capacity of vegetation based on LiDAR data. The study is conducted in the natural wetland river valley dominated meadows, reeds and small bushes. The multiple regression model was chosen to relate the field measurements of interception capacity and LiDAR statistics at 2m grid. The optimal model was chosen by stepwise selection and further manual variables selection resulting...

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• Data Model Development for Security Information Sharing in Smart Grids

  Publikacja

  • R. Leszczyna
  • M. Wróbel

  - 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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• thestats: An Open-Data R Package for Exploring Turkish Higher Education Statistics

  Publikacja

  • M. Cavus
  • O. Aydin

  - Yuksekogretim Dergisi - Rok 2023

  There are open datasets available for official statistics, finance, education, and a variety of other domains. The open datasets are published by third-party vendors as well as official authorities. For example, The Turkish Higher Education Council maintains a web portal dedicated to higher education in Türkiye. Detailed datasets about universities, faculties, and departments can be obtained from the portal. Using the data provided...

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• INFORMATION SOCIETY DEVELOPMENT TRENDS, FROM DATA THROUGH KNOWLEDGE TO WISDOM

  Publikacja

  • H. Krawczyk
  • A. Targowski

  - TASK Quarterly - Rok 2017

  The paper investigates both the causes and effects of the rapid increase in the data volume(BigData)andtheirimpactonhumancognition.TheroleoftheInternetindistributing and exchanging of such data, and their impact on the growth of the Information Society are emphasized. As a result, Wisdom Science – a new kind of research – emerges which has the potential to facilitate more advanced solutions in the digital world. In consequence,...

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• The use of weight in motion data to heavy vehicles - pavement interaction analysis

  Publikacja

  • D. Ryś

  - Rok 2012

  Weight in motion (WIM) is the element of modern intelligent transport systems created to control commercial vehicles and to detect overloaded items. Because all of the vehicles crossing the WIM station are weighed and recognized, given data can be used to vehicle-pavement interaction analysis. The paper presents the results of analysis based on data from seven WIM stations localized in Motorway and National Roads in Poland. The...

• 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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• 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

• 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

• 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.

• 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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• Cavitation-based technologies for pretreatment and processing of food wastes: Major applications and mechanisms – A review

  Publikacja

  • Z. Askarniya
  • X. Sun
  • Z. Wang
  • G. Boczkaj

  - CHEMICAL ENGINEERING JOURNAL - Rok 2023

  Conversion of food wastes to valuable products is an important topic for sustainable development. Feedstock hydrolysis is a stage strongly affecting the anaerobic digestion process, and resistance of food waste towards hydrolysis causes a decrease in product yield. Such as biomethane, biohydrogen, biohythane, VFAs, and lactic acids. Moreover, mass transfer is a serious limitation of transesterification for the production of biodiesel....

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• 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...

• System for characterisation and multidimensional imaging of seafloor using multibeam sonar data

  Publikacja

  • Z. Łubniewski
  • A. Stepnowski
  • M. Kulawiak

  - Rok 2012

  Multibeam sonars are widely used in applications like high resolution bathymetry measurements, underwater object detection and imaging, etc. Also, they are the promising tool in seafloor characterisation and classification, having several advantages over conventional single beam echosounders. The proposed approach to seafloor classification relies on the combined use of three different techniques. In each of them, a set of descriptors...

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• Studies on the Combined Impact of Starch Source and Multiple Processing on Selected Properties of Thermoplastic Starch/Ethylene-Vinyl Acetate Blends

  Publikacja

  • A. Hejna
  • J. Lenża
  • K. Formela
  • J. Korol

  - JOURNAL OF POLYMERS AND THE ENVIRONMENT - Rok 2019

  Thermoplastic starch (TPS)/ethylene vinyl acetate (EVA) blends compatibilized with polyethylene-graft-maleic anhydride (PE-g-MA) were prepared from various native starches (potato, maize and waxy maize) and subjected to multiple extrusion cycles. Source of starch has significant impact on its composition, hence properties of obtained TPS and their blends with EVA. Higher content of amylopectin in waxy maize starch, comparing to...

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• 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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• 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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• 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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• 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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