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Search results for: ALGORITHMS%20PERFORMANCE
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Dariusz Dereniowski prof. dr hab. inż.
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Online sound restoration system for digital library applications.
PublicationAudio signal processing algorithms were introduced to the new online non-commercial service for audio restoration intended to enhance the content of digitized audio repositories. Missing or distorted audio samples are predicted using neural networks and a specific implementation of the Jannsen interpolation method based on the autoregressive model (AR) combined with the iterative restoring of missing signal samples. Since the distortion...
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Green strength (buildability performance) of concretes containing magnetite aggregate (M0-M100) mixes
Open Research DataRaw data for determination of buildability (green strength) properties of concrete mixes determined by squeezing test using QuantumX MX840B with CATMAN-EASY software, determined after 15, 30, 45 and 60 minutes. Values present force and two displacement measurements by LVDT.Additionally, an Origin (*.opju) file with processed data presenting stress-strain...
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Floating treatment wetland with Equisetum hyemale - performance in nutrients and potentially toxic elements removal
Open Research DataThis data set contains the results of a microcosm experiment with floating treatment wetlands (FTW) conducted under artificial conditions. The goal of this experiment was to determine the effect of stress factors (Pb, As, increased salinity) on the nutrient uptake capacity of Equisetum hyemale in FTW. The ability of E.hyemale to uptake Pb and As was...
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A framework for automatic detection of abandoned luggage in airport terminal
PublicationA framework for automatic detection of events in a video stream transmitted from a monitoring system is presented. The framework is based on the widely used background subtraction and object tracking algorithms. The authors elaborated an algorithm for detection of left and removed objects based on mor-phological processing and edge detection. The event detection algorithm collects and analyzes data of all the moving objects in...
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Krzysztof Giaro prof. dr hab. inż.
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Real-time speech-rate modification experiments
PublicationAn algorithm designed for real-time speech time scale modification (stretching) is proposed, providing a combination of typical synchronous overlap and add based time scale modification algorithm and signal redundancy detection algorithms that allow to remove parts of the speech signal and replace them with the stretched speech signal fragments. Effectiveness of signal processing algorithms are examined experimentally together...
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Performance improvement of NN based RTLS by customization of NN structure - heuristic approach
PublicationThe purpose of this research is to improve performance of the Hybrid Scene Analysis – Neural Network indoor localization algorithm applied in Real-time Locating System, RTLS. A properly customized structure of Neural Network and training algorithms for specific operating environment will enhance the system’s performance in terms of localization accuracy and precision. Due to nonlinearity and model complexity, a heuristic analysis...
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Fast and Efficient Four-Class Motor Imagery EEG Signals Analysis Using CSP-Ridge Regression Algorithm for the Purpose of Brain-Computer Interface."
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Bi-GRU-APSO: Bi-Directional Gated Recurrent Unit with Adaptive Particle Swarm Optimization Algorithm for Sales Forecasting in Multi-Channel Retail
PublicationIn the present scenario, retail sales forecasting has a great significance in E-commerce companies. The precise retail sales forecasting enhances the business decision making, storage management, and product sales. Inaccurate retail sales forecasting can decrease customer satisfaction, inventory shortages, product backlog, and unsatisfied customer demands. In order to obtain a better retail sales forecasting, deep learning models...
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Robust-adaptive dynamic programming-based time-delay control of autonomous ships under stochastic disturbances using an actor-critic learning algorithm
PublicationThis paper proposes a hybrid robust-adaptive learning-based control scheme based on Approximate Dynamic Programming (ADP) for the tracking control of autonomous ship maneuvering. We adopt a Time-Delay Control (TDC) approach, which is known as a simple, practical, model free and roughly robust strategy, combined with an Actor-Critic Approximate Dynamic Programming (ACADP) algorithm as an adaptive part in the proposed hybrid control...
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Kazimierz Jamroz dr hab. inż.
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HIGH PERFORMANCE POLYMERS
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Improved method for real-time speech stretching
Publicationn algorithm for real-time speech stretching is presented. It was designed to modify input signal dependently on its content and on its relation with the historical input data. The proposed algorithm is a combination of speech signal analysis algorithms, i.e. voice, vowels/consonants, stuttering detection and SOLA (Synchronous-Overlap-and-Add) based speech stretching algorithm. This approach enables stretching input speech signal...
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BP-EVD: Forward Block-Output Propagation for Efficient Video Denoising
PublicationDenoising videos in real-time is critical in many applications, including robotics and medicine, where varying light conditions, miniaturized sensors, and optics can substantially compromise image quality. This work proposes the first video denoising method based on a deep neural network that achieves state-of-the-art performance on dynamic scenes while running in real-time on VGA video resolution with no frame latency. The backbone...
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Simulation of Wave Propagation in Media Described by Fractional-Order Models
PublicationIn this paper, algorithms for simulation of the wave propagation in electromagnetic media described by fractional-order (FO) models (FOMs) are presented. Initially, fractional calculus and FO Maxwell's equations are introduced. The problem of the wave propagation is formulated for media described by FOMs. Then, algorithms for simulation of the non-monochromatic wave propagation are presented which employ computations in the time...
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Expedited Optimization of Passive Microwave Devices Using Gradient Search and Principal Directions
PublicationOver the recent years, utilization of numerical optimization techniques has become ubiquitous in the design of high-frequency systems, including microwave passive components. The primary reason is that the circuits become increasingly complex to meet ever growing performance demands concerning their electrical performance, additional functionalities, as well as miniaturization. Nonetheless, as reliable evaluation of microwave device...
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Performance of Particle Oxidation Catalyst and Particle Formation Studies with Sulphur Containing Fuels
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Cost-performance framework for the assessment of Modular Multilevel Converter in HVDC transmission applications
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Performance of data transmission in UMTS with turbo code about decreased number of states
PublicationIn the paper a structure of turbo encoder and decoder about decreased number of states has been described. The simulation results of transmission performance based on turbo coding without the reduction of the number of iterations for the uplink and downlink of WCDMA/FDD interface have been presented. The SOVA algorithm for turbo decoding has been used. The investigations have been carried out for Outdoor to Indoor & Pedestrian...
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Capacity-fairness performance of an ad hoc IEEE 802.11 WLAN with noncooperative stations
PublicationWykazano, że wartości kombinowanego wskaźnika wydajności lokalnej sieci bezprzewodowej ze stacjami niekooperacyjnymi, uwzględniającego przepustowość i sprawiedliwość rozdziału pasma, są znacznie niższe od przewidywanych na podstawie modeli działania kooperacyjnego. Sytuację może poprawić zastosowanie przez stacje inteligentnych strategii motywacyjnych pod warunkiem, że liczba stacji jest niewielka i są one wystarczająco uwarunkowane...
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Investigation on microstructure, mechanical, and tribological performance of Cu base hybrid composite materials
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Sliding Wear Performance of AlCrN Coating on TiB2/Ti Composites at High Temperatures
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Toward a hybrid model of ship performance in ice suitable for route planning purpose
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Performance comparison of SiC Schottky diodes and silicon ultra fast recovery diodes
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The Effects of Resisted Post-Activation Sprint Performance Enhancement in Elite Female Sprinters
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Effects of acute ingestion of caffeinated chewing gum on performance in elite judo athletes
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The Effects of Plyometric Conditioning Exercises on Volleyball Performance with Self-Selected Rest Intervals
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Performance of protein-structure predictions with the physics-based UNRES force field in CASP11
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Performance of the CMS hadron calorimeter with cosmic ray muons and LHC beam data
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The study of performance of polyethylene chlorinetrifluoroethylene membranes used for brine desalination by membrane distillation
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Influence of morphology of PVDF capillary membranes on the performance of direct contact membrane distillation
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Effect of substrate type on the field performance and chemical composition of highbush blueberry cv.Patriot
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Adsorption performance of graphitic carbon nitride-based materials: Current state of the art
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High catalytic performance of 2D Ti3C2Tx MXene in α-pinene isomerization to camphene
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Surface properties tuning of exfoliated graphitic carbon nitride for multiple photocatalytic performance
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Performance Evaluation of a Single-Stage Two-Bed Adsorption Chiller With Desalination Function
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Graphene oxide functionalized with methylene blue and its performance in singlet oxygen generation
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Boosting of Antibacterial Performance of Cellulose Based Paper Sheet via TiO2 Nanoparticles
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Monetary Incentives Increase Metacognitive Confidence in Source Memory Performance in Patients With Schizophrenia
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Evaluating the performance of inverted pavement structure using the accelerated pavement test (APT)
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Insight into the Effect of ZIF‐8 Particle Size on the Performance in Nanocarbon‐Based Supercapacitors
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Transforming polystyrene waste into 3D hierarchically porous carbon for high-performance supercapacitors
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Effects of whole-body vibration warm-up on subsequent jumping and running performance
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Coping styles and symptomatic manifestation of first-episode psychosis: Focus on cognitive performance
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Aromatic Dendrimers Bearing 2,4,6-Triphenyl-1,3,5-triazine Cores and Their Photocatalytic Performance
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Optimal programming of critical sections in modern network processors under performance requirements.
PublicationPrzegląd konstrukcji i zastosowań metod programowania sekcji krytycznych w nowoczesnych procesorach sieciowych rodziny Intel IXP. Porównanie wydajnościowe w formie tabeli.
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A random access protocol under backoff attack: performance and game-theoretic deterrent
PublicationPrzedstawiono metodę obrony przed atakiem na protokół CSMA/CA, opartą na generacji sekwencji zagłuszających z wykorzystaniem wzajemnej słyszalności stacji. Na podstawie analizy wypłat odpowiedniej gry w formie rozwiniętej pokazano możliwość osiągania punktu równowagi odpowiadającego standardowym ustawieniom protokołu.
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Investor sentiment, limits on arbitrage, and the performance of cross-country stock market anomalies
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MERGERS AND ACQUISITIONS: EVIDENCE ON POST-ANNOUNCEMENT PERFORMANCE FROM CEE STOCK MARKETS
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