Search results for: keystroke dynamics

• Recognizing emotions on the basis of keystroke dynamics

  Publication

  • A. Kołakowska

  - Year 2015

  The article describes a research on recognizing emotional states on the basis of keystroke dynamics. An overview of various studies and applications of emotion recognition based on data coming from keyboard is presented. Then, the idea of an experiment is presented, i.e. the way of collecting and labeling training data, extracting features and finally training classifiers. Different classification approaches are proposed to be...

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• User authentication based on keystroke dynamics analysis

  Publication

  • A. Kołakowska

  - Year 2011

  W pracy przedstawiono kilka metod, które można wykorzystać do uwierzytelniania użytkowników na podstawie rytmu pisania na klawiaturze. Dwie z opisanych metod wykorzystują miarę odległości zdefiniowaną do porównywania wpisywanych tekstów, natomiast trzecia analizuje parametry rozkładów cech wydobytych z wpisywanych tekstów. Algorytmy te zostały przetestowane na dwóch zbiorach danych. Ponadto oceniona została efektywność metody powstałej...

• Towards detecting programmers’ stress on the basis of keystroke dynamics

  Publication

  • A. Kołakowska

  - Annals of Computer Science and Information Systems - Year 2016

  The article describes the idea of detecting stress among programmers on the basis of keystroke dynamics. An experiment with a group of students of artificial intelligence classes was performed. Two samples of keystroke data were recorded for each case, the first while programming without stress, the second under time pressure. A number of timing and frequency parameters were calculated for each sample. Then statistical analysis...

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• Usefulness of Keystroke Dynamics Features in User Authentication and Emotion Recognition

  Publication

  • A. Kołakowska

  - Advances in Intelligent Systems and Computing - Year 2018

  The study presented in the article focuses on keystroke dynamics analysis applied to recognize emotional states and to authenticate users. An overview of some studies and applications in these areas is presented. Then, an experiment is described, i.e. the way of collecting data, extracting features, training classifiers and finding out the most appropriate feature subsets. The results show that it is difficult to indicate a universal...

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• Keystroke Dynamics Patterns While Writing Positive and Negative Opinions

  Publication

  • A. Kołakowska
  • A. Landowska

  - SENSORS - Year 2021

  This paper deals with analysis of behavioural patterns in human–computer interaction. In the study, keystroke dynamics were analysed while participants were writing positive and negative opinions. A semi-experiment with 50 participants was performed. The participants were asked to recall the most negative and positive learning experiences (subject and teacher) and write an opinion about it. Keystroke dynamics were captured and...

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• A review of emotion recognition methods based on keystroke dynamics and mouse movements

  Publication

  • A. Kołakowska

  - Year 2013

  The paper describes the approach based on using standard input devices, such as keyboard and mouse, as sources of data for the recognition of users’ emotional states. A number of systems applying this idea have been presented focusing on three categories of research problems, i.e. collecting and labeling training data, extracting features and training classifiers of emotions. Moreover the advantages and examples of combining standard...

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• Generating training data for SART-2 keystroke analysis module

  Publication

  • A. Kołakowska

  - Zeszyty Naukowe Wydziału ETI Politechniki Gdańskiej. Technologie Informacyjne - Year 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...

• Generating optimal paths in dynamic environments using RiverFormation Dynamics algorithm

  Publication

  • G. Redlarski
  • M. A. Dąbkowski
  • A. Pałkowski

  - Journal of Computational Science - Year 2017

  The paper presents a comparison of four optimisation algorithms implemented for the purpose of finding the shortest path in static and dynamic environments with obstacles. Two classical graph algorithms –the Dijkstra complete algorithm and A* heuristic algorithm – were compared with metaheuristic River Formation Dynamics swarm algorithm and its newly introduced modified version. Moreover, another swarm algorithm has been compared...

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• Detection of stress corrosion cracking dynamics by dynamic electrochemical impedance spectroscopy

  Publication

  • K. Darowicki
  • J. Orlikowski
  • A. Arutunow
  • K. Darowicki

  - CORROSION ENGINEERING SCIENCE AND TECHNOLOGY - Year 2004

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• Detection of stress corrosion cracking dynamics by dynamic electrochemical impedance spectroscopy.

  Publication

  • K. Darowicki
  • J. Orlikowski
  • A. Arutunow

  - Year 2004

  Klasyczne badania korozji naprężeniowej nie dają precyzyjnych informacji o dynamice takiego procesu korozyjnego. Nowa technika dynamicznej elektrochemicznej spektroskopii impedanyjnej, która została opracowana w Katedrze Elektrochemii, Korozji i Inżynierii Materiałowej stwarza takie możliwości. Fakt ten związany z zastosowaną metodologią analizy umożliwiającą selektywną analizą czasowo-częstotliwościową danych pomiarowych.Praca...

• Kinetics of spinodal decomposition in the Ising model with dynamic lattice liquid (DLL) dynamics

  Publication

  • K. Halagan
  • P. Polanowski

  - Journal of Non-Crystalline Solids - Year 2009

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• Non-linearity of multibody dynamic equations with respect to Lagrange multipliers: application to railway dynamics

  Publication

  • P. Fisette
  • K. Lipiński
  • J. Samin

  - Year 2009

  Praca koncentruje się na dynamice układów wieloczłonowych z zamkniętymi łańcuchami członów. Głównym punktem zainteresowania jest modelowanie układów z występującymi nieliniowymi zależnościami opisującymi wpływ siły mnożników Lagrange'a na dynamikę układu (nieliniowe modele siły tarcia.). Aby zbudować model dynamiki układu zawierającego zamknięte łańcuchy członów, wspomniane łańcuchy są "rozcinane" i budowana jest struktura drzewa...

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• Dynamic Formation and Breaking of Disulfide Bonds in Molecular Dynamics Simulations with the UNRES Force Field

  Publication

  • M. Chinchio
  • C. Czaplewski
  • A. Liwo
  • S. Ołdziej
  • H. Scheraga

  - Journal of Chemical Theory and Computation - Year 2007

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• Structural and dynamic insights on the EmrE protein with TPP+ and related substrates through molecular dynamics simulations

  Publication

  • M. Padariya
  • U. Kalathiya
  • M. Bagiński

  - CHEMISTRY AND PHYSICS OF LIPIDS - Year 2018

  EmrE is a bacterial transporter protein that forms an anti-parallel homodimer with four transmembrane helices in each monomer. EmrE transports positively charged aromatic compounds, such as TPP+ and its derivatives. We performed molecular dynamics (MD) simulations of EmrE in complex with TPP+, MeTPP+, and MBTPP+ embedded in a membrane. The detailed molecular properties and interactions were analysed for all EmrE-ligand complexes....

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• Structural and dynamic changes adopted by EmrE, multidrug transporter protein—Studies by molecular dynamics simulation

  Publication

  • M. Padariya
  • U. Kalathiya
  • M. Bagiński

  - BIOCHIMICA ET BIOPHYSICA ACTA-BIOMEMBRANES - Year 2015

  EmrE protein transports positively charged aromatic drugs (xenobiotics) in exchange for two protons and thus provides bacteria resistance to variety of drugs. In order to understand how this protein may recognize ligands, the monomer and asymmetric apo-form of the EmrE dimer embedded in a heterogeneous phospholipid (POPE + POPG) membrane were studied by molecular dynamics simulations. Dimer is regarded as a functional form of the...

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• Study of Direct Methanol Fuel Cell Process Dynamics Using Dynamic Electrochemical Impedance Spectroscopy

  Publication

  • K. Darowicki
  • E. Janicka
  • P. Ślepski

  - International Journal of Electrochemical Science - Year 2012

  A new technique, which was developed to characterize the direct methanol fuel cell under work conditions, has been presented in this paper. The impedance measurements were made using dynamic electrochemical impedance spectroscopy research technique in the galvanostatic mode, using multiple sinusoidal excitation. Obtained results show, that together with an increase of the temperature and working load, the global impedance...

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• DYNAMIC SYSTEMS AND APPLICATIONS

  Journals

  ISSN: 1056-2176

• KEYSTONE - JAKO PROCES AUTORYZACYJNY SYSTEMU OPENSTACK

  Publication

  • R. Czaja
  • M. Landowski
  • S. Kaczmarek

  - Przegląd Telekomunikacyjny + Wiadomości Telekomunikacyjne - Year 2015

  Niniejszy artykuł ma na celu ukazanie funkcjonowania serwisu Keystone odpowiedzialnego za uwierzytelnianie użytkowników w architekturze OpenStack. Stanowi on front-end tego systemu, sprawując kontrolę nad dostępem do zasobów zapewnia scentralizowaną politykę bezpieczeństwa. Komunikacja z serwisem odbywa się na zasadzie klient-serwer, gdzie Keystone obsługuje żądania wysyłane do jego API, w zamian generując klucze dostępowe dla...

• JOURNAL OF BIOMOLECULAR STRUCTURE & DYNAMICS

  Journals

  ISSN: 0739-1102 , eISSN: 1538-0254

• New possibilities of the passive layer cracking dynamics detection using a new Dynamic Electrochemical Impedance Spectroscopy.

  Publication

  • K. Darowicki
  • J. Orlikowski
  • A. Arutunow

  - Year 2004

  Nowa metoda Dynamicznej Elektrochemicznej Spektroskopii Impedancyjnej opracowana w Katedrze Elektrochemii, Korozji i Inżynierii Materiałowej Politechniki Gdańskiej daje możliwości określania charakterystyki impedancyjnej w dziedzinie czasu podczas procesu pękania ochronnej warstwy pasywnej. Fakt ten jest związany z procedurą analizującą wspomnianej techniki, która umożliwia selektywną analizę czasowo-częstotliwościową uzyskanych...

• MACHINE DYNAMICS PROBLEMS

  Journals

  ISSN: 0239-7730

• KEYSTONE WG2: Activities and Results Overview on Keyword Search

  Publication

  • J. Szymański
  • E. Demidova

  - LECTURE NOTES IN COMPUTER SCIENCE - Year 2018

  In this chapter we summarize activities and results achieved by the Keyword Search Working Group (WG2) of the KEYSTONE Cost Action IC1302. We present the goals of the WG2, its main activities in course of the action and provide a summary of the selected publications related to the WG2 goals and co-authored by WG2 members. We concludewith a summary of open research directions in the area of keyword search for structured data.

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• Cultural Dynamics

  Journals

  ISSN: 0921-3740 , eISSN: 1461-7048

• Structural Dynamics

  Journals

  ISSN: 2329-7778

• Fluid Dynamics

  Journals

  ISSN: 0015-4628 , eISSN: 1573-8507

• ORGANIZATIONAL DYNAMICS

  Journals

  ISSN: 0090-2616 , eISSN: 1873-3530

• MACROECONOMIC DYNAMICS

  Journals

  ISSN: 1365-1005 , eISSN: 1469-8056

• Stochastics and Dynamics

  Journals

  ISSN: 0219-4937 , eISSN: 1793-6799

• Structural Change and Economic Dynamics

  Journals

  ISSN: 0954-349X

• OCEAN DYNAMICS

  Journals

  ISSN: 1616-7341 , eISSN: 1616-7228

• SOIL DYNAMICS AND EARTHQUAKE ENGINEERING

  Journals

  ISSN: 0267-7261 , eISSN: 1879-341X

• Targ Węglowy as the keystone of two ring road complexes of Gdańsk city centre

  Publication

  • Ł. Bugalski

  - Year 2014

  The urban structure of Gdansk city centre is determined by two ring road complexes. The first of them, the Gdansk Ring, has been created as a result of a city defortification at the turn of the 19th and 20th centuries and has been destroyed in the end of World War Two with the rest of Gdansk. The second, the Main Town Green Belt, has been formed in place of the medieval fortification system of the city’s most important historical...

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• Finite Resolution Dynamics

  Publication

  • S. Luzzatto
  • P. Pilarczyk

  - FOUNDATIONS OF COMPUTATIONAL MATHEMATICS - Year 2011

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• Directed pulse dynamics

  Publication

  • S. Leble
  • M. Kuszner
  • B. Reichel

  - Year 2010

  Introducing a projection method into a one-dimensional model of a pulse propagation in isotropic media, we derive and investigate a system of equation describing dynamics ultrashort pulses of opposite directions ofpropagation and ones with interaction of directed pulses with different polarization.

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• Lattice dynamics of Mg2SiO4

  Publication

  • P. Jochym
  • J. Łażewski
  • K. Parlinski
  • P. Piekarz

  - Journal of Molecular Structure - Year 2001

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• Dynamics of quantum entanglement

  Publication

  • K. Życzkowski
  • P. Horodecki
  • M. Horodecki
  • R. Horodecki

  - PHYSICAL REVIEW A - Year 2002

  A model of discrete dynamics of entanglement of a bipartite quantum state is considered. It involves a global unitary dynamics of the system and periodic actions of local bistochastic or decaying channel. For initially pure states the decay of entanglement is accompanied by an increase of von Neumann entropy of the system. We observe and discuss revivals of entanglement due to unitary interaction of subsystems. For some mixed states...

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• FLUID DYNAMICS RESEARCH

  Journals

  ISSN: 0169-5983 , eISSN: 1873-7005

• DYNAMICS OF ATMOSPHERES AND OCEANS

  Journals

  ISSN: 0377-0265 , eISSN: 1872-6879

• Language Dynamics and Change

  Journals

  ISSN: 2210-5824 , eISSN: 2210-5832

• Earth Surface Dynamics

  Journals

  ISSN: 2196-6311 , eISSN: 2196-632X

• Journal of Biological Dynamics

  Journals

  ISSN: 1751-3758 , eISSN: 1751-3766

• Journal of Dynamics and Games

  Journals

  ISSN: 2164-6066 , eISSN: 2164-6074

• Earth System Dynamics

  Journals

  ISSN: 2190-4979 , eISSN: 2190-4987

• Conformal Geometry and Dynamics

  Journals

  ISSN: 1088-4173

• Organisational and Social Dynamics

  Journals

  ISSN: 1474-2780 , eISSN: 2044-3765

• Journal of Dynamics and Control

  Journals

  ISSN: 1672-6553

• Groups Geometry and Dynamics

  Journals

  ISSN: 1661-7207 , eISSN: 1661-7215

• Journal of Computational Dynamics

  Journals

  eISSN: 2158-2505

• REVIEW OF ECONOMIC DYNAMICS

  Journals

  ISSN: 1094-2025 , eISSN: 1096-6099

• Journal of Modern Dynamics

  Journals

  ISSN: 1930-5311 , eISSN: 1930-532X