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183 results on '"Lawniczak, A. T."'

2. Fourier Spectral Domain Functional Principal Component Analysis of EEG Signals

Author

Xie, Shengkun, Lawniczak, Anna T., Goos, Gerhard, Founding Editor, Hartmanis, Juris, Founding Editor, Bertino, Elisa, Editorial Board Member, Gao, Wen, Editorial Board Member, Steffen, Bernhard, Editorial Board Member, Woeginger, Gerhard, Editorial Board Member, Yung, Moti, Editorial Board Member, De Marsico, Maria, editor, Sanniti di Baja, Gabriella, editor, and Fred, Ana, editor

Published
2020
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4. Analysis of Rates of Agents’ Decisions in Learning to Cross a Highway in Populations with Risk Takers and Risk Avoiders

Author

Lawniczak, Anna T., Yu, Fei, Hutchison, David, Series Editor, Kanade, Takeo, Series Editor, Kittler, Josef, Series Editor, Kleinberg, Jon M., Series Editor, Mattern, Friedemann, Series Editor, Mitchell, John C., Series Editor, Naor, Moni, Series Editor, Pandu Rangan, C., Series Editor, Steffen, Bernhard, Series Editor, Terzopoulos, Demetri, Series Editor, Tygar, Doug, Series Editor, Weikum, Gerhard, Series Editor, Mauri, Giancarlo, editor, El Yacoubi, Samira, editor, Dennunzio, Alberto, editor, Nishinari, Katsuhiro, editor, and Manzoni, Luca, editor

Published
2018
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6. Network traffic behaviour near phase transition point

Author

Lawniczak, Anna T. and Tang, Xiongwen

Subjects
Nonlinear Sciences - Adaptation and Self-Organizing Systems
Abstract

We explore packet traffic dynamics in a data network model near phase transition point from free flow to congestion. The model of data network is an abstraction of the Network Layer of the OSI (Open Systems Interconnection) Reference Model of packet switching networks. The Network Layer is responsible for routing packets across the network from their sources to their destinations and for control of congestion in data networks. Using the model we investigate spatio-temporal packets traffic dynamics near the phase transition point for various network connection topologies, and static and adaptive routing algorithms. We present selected simulation results and analyze them.

Published
2005
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7. Effects of population mixing on the spread of SIR epidemics

Author

Fuks', Henryk, Lawniczak, Anna T., and Duchesne, Ryan

Subjects
Nonlinear Sciences - Cellular Automata and Lattice Gases, Nonlinear Sciences - Pattern Formation and Solitons
Abstract

We study dynamics of spread of epidemics of SIR type in a realistic spatially-explicit geographical region, Southern and Central Ontario, using census data obtained from Statistics Canada, and examine the role of population mixing in epidemic processes. Our model incorporates the random nature of disease transmission, the discreteness and heterogeneity of distribution of host population. We find that introduction of a long-range interaction destroys spatial correlations very easily if neighbourhood sizes are homogeneous. For inhomogeneous neighbourhoods, very strong long-range coupling is required to achieve a similar effect. Our work applies to the spread of in influenza during a single season and our model is applicable to other geographic regions, if suitable data is available.

Published
2005
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8. Spatial correlations in SIR epidemic models

Author

Fukś, Henryk, Duchesne, Ryan, and Lawniczak, Anna T.

Subjects
Nonlinear Sciences - Cellular Automata and Lattice Gases
Abstract

We investigate the role of global mixing in epidemic processes. We first construct a simplified model of the SIR epidemic using a realistic population distribution. Using this model, we examine possible mechanisms for destruction of spatial correlations, in an attempt to produce correlation curves similar to those reported recently for real epidemiological data. We find that introduction of a long-range interaction destroys spatial correlations very easily if neighbourhood sizes are homogeneous. For inhomogeneous neighbourhoods, very strong long-range coupling is required to achieve a similar effect., Comment: 6 pages, 4 figures

Published
2005

9. Packet delay in models of data networks

Author

Fuks, Henryk, Lawniczak, Anna T., and Volkov, Stanislav

Subjects
Computer Science - Networking and Internet Architecture, Nonlinear Sciences - Cellular Automata and Lattice Gases, I.6.5, G3
Abstract

We investigate individual packet delay in a model of data networks with table-free, partial table and full table routing. We present analytical estimation for the average packet delay in a network with small partial routing table. Dependence of the delay on the size of the network and on the size of the partial routing table is examined numerically. Consequences for network scalability are discussed., Comment: 19 pages, 4 figures

Published
2002
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10. Individual-based lattice model for spatial spread of epidemics

Author

Fuks, Henryk and Lawniczak, Anna T.

Subjects
Nonlinear Sciences - Cellular Automata and Lattice Gases, Quantitative Biology
Abstract

We present a lattice gas cellular automaton (LGCA) to study spatial and temporal dynamics of an epidemic of SIR (susceptible-infected-removed) type. The automaton is fully discrete, i.e. space, time and number of individuals are discrete variables. The automaton can be applied to study spread of epidemics in both human and animal populations. We investigate effects of spatial inhomogeneities in initial distribution of infected and vaccinated populations on the dynamics of epidemic of SIR type. We discuss vaccination strategies which differ only in spatial distribution of vaccinated individuals. Also, we derive an approximate, mean-field type description of the automaton, and discuss differences between the mean-field dynamics and the results of LGCA simulation., Comment: 13 pages, 5 figures

Published
2002
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11. Performance of data networks with random links

Author

Fuks, Henryk and Lawniczak, Anna T.

Subjects
Nonlinear Sciences - Adaptation and Self-Organizing Systems, Computer Science - Networking and Internet Architecture
Abstract

We investigate simplified models of computer data networks and examine how the introduction of additional random links influences the performance of these net works. In general, the impact of additional random links on the performance of the network strongly depends on the routing algorithm used in the network. Significant performance gains can be achieved if the routing is based on "geometrical distance" or shortest path reduced table routing. With shortest path full table routing degradation of performance is observed., Comment: 20 pages, 10 figures

Published
1999
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12. Effects of Agents’ Fear, Desire and Knowledge on Their Success When Crossing a CA Based Highway

Author

Lawniczak, Anna T., Ly, Leslie, Xie, Shengkun, Yu, Fei, Hutchison, David, Series editor, Kanade, Takeo, Series editor, Kittler, Josef, Series editor, Kleinberg, Jon M., Series editor, Mattern, Friedemann, Series editor, Mitchell, John C., Series editor, Naor, Moni, Series editor, Pandu Rangan, C., Series editor, Steffen, Bernhard, Series editor, Terzopoulos, Demetri, Series editor, Tygar, Doug, Series editor, Weikum, Gerhard, Series editor, El Yacoubi, Samira, editor, Wąs, Jaroslaw, editor, and Bandini, Stefania, editor

Published
2016
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16. Software Implementation of Population of Cognitive Agents Learning to Cross a Highway

Author

Lawniczak, Anna T., Di Stefano, Bruno N., Ernst, Jason B., Hutchison, David, Series editor, Kanade, Takeo, Series editor, Kittler, Josef, Series editor, Kleinberg, Jon M., Series editor, Kobsa, Alfred, Series editor, Mattern, Friedemann, Series editor, Mitchell, John C., Series editor, Naor, Moni, Series editor, Nierstrasz, Oscar, Series editor, Pandu Rangan, C., Series editor, Steffen, Bernhard, Series editor, Terzopoulos, Demetri, Series editor, Tygar, Doug, Series editor, Weikum, Gerhard, Series editor, Wąs, Jarosław, editor, Sirakoulis, Georgios Ch., editor, and Bandini, Stefania, editor

Published
2014
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18. Noise Effects on Spatial Pattern Data Classification Using Wavelet Kernel PCA : A Monte Carlo Simulation Study

Author

Xie, Shengkun, Lawniczak, Anna T., Krishnan, Sridhar, Hutchison, David, editor, Kanade, Takeo, editor, Kittler, Josef, editor, Kleinberg, Jon M., editor, Mattern, Friedemann, editor, Mitchell, John C., editor, Naor, Moni, editor, Nierstrasz, Oscar, editor, Pandu Rangan, C., editor, Steffen, Bernhard, editor, Sudan, Madhu, editor, Terzopoulos, Demetri, editor, Tygar, Doug, editor, Vardi, Moshe Y., editor, Weikum, Gerhard, editor, Guo, Chengan, editor, Hou, Zeng-Guang, editor, and Zeng, Zhigang, editor

Published
2013
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19. Creature Learning to Cross a CA Simulated Road

Author

Lawniczak, Anna T., Ernst, Jason B., Di Stefano, Bruno N., Hutchison, David, editor, Kanade, Takeo, editor, Kittler, Josef, editor, Kleinberg, Jon M., editor, Mattern, Friedemann, editor, Mitchell, John C., editor, Naor, Moni, editor, Nierstrasz, Oscar, editor, Pandu Rangan, C., editor, Steffen, Bernhard, editor, Sudan, Madhu, editor, Terzopoulos, Demetri, editor, Tygar, Doug, editor, Vardi, Moshe Y., editor, Weikum, Gerhard, editor, Sirakoulis, Georgios Ch., editor, and Bandini, Stefania, editor

Published
2012
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20. Multilane Single GCA-w Based Expressway Traffic Model

Author

Lawniczak, Anna T., Di Stefano, Bruno, Hutchison, David, Series editor, Kanade, Takeo, Series editor, Kittler, Josef, Series editor, Kleinberg, Jon M., Series editor, Mattern, Friedemann, Series editor, Mitchell, John C., Series editor, Naor, Moni, Series editor, Nierstrasz, Oscar, Series editor, Pandu Rangan, C., Series editor, Steffen, Bernhard, Series editor, Sudan, Madhu, Series editor, Terzopoulos, Demetri, Series editor, Tygar, Doug, Series editor, Vardi, Moshe Y., Series editor, Weikum, Gerhard, Series editor, Bandini, Stefania, editor, Manzoni, Sara, editor, Umeo, Hiroshi, editor, and Vizzari, Giuseppe, editor

Published
2010
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21. Impact of Coupling of Distributed Denial of Service Attack with Routing on Throughput of Packet Switching Network

Author

Lawniczak, Anna T., Wu, Hao, Di Stefano, Bruno, Hutchison, David, Series editor, Kanade, Takeo, Series editor, Kittler, Josef, Series editor, Kleinberg, Jon M., Series editor, Mattern, Friedemann, Series editor, Mitchell, John C., Series editor, Naor, Moni, Series editor, Nierstrasz, Oscar, Series editor, Pandu Rangan, C., Series editor, Steffen, Bernhard, Series editor, Sudan, Madhu, Series editor, Terzopoulos, Demetri, Series editor, Tygar, Doug, Series editor, Vardi, Moshe Y., Series editor, Weikum, Gerhard, Series editor, Bandini, Stefania, editor, Manzoni, Sara, editor, Umeo, Hiroshi, editor, and Vizzari, Giuseppe, editor

Published
2010
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23. Development of Road Traffic CA Model of 4-Way Intersection to Study Travel Time

Author

Lawniczak, Anna T., Di Stefano, Bruno N., Akan, Ozgur, Series editor, Bellavista, Paolo, Series editor, Cao, Jiannong, Series editor, Dressler, Falko, Series editor, Ferrari, Domenico, Series editor, Gerla, Mario, Series editor, Kobayashi, Hisashi, Series editor, Palazzo, Sergio, Series editor, Sahni, Sartaj, Series editor, Shen, Xuemin (Sherman), Series editor, Stan, Mircea, Series editor, Xiaohua, Jia, Series editor, Zomaya, Albert, Series editor, Coulson, Geoffrey, Series editor, and Zhou, Jie, editor

Published
2009
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24. Entropy Based Detection of DDoS Attacks in Packet Switching Network Models

Author

Lawniczak, Anna T., Wu, Hao, Di Stefano, Bruno, Akan, Ozgur, Series editor, Bellavista, Paolo, Series editor, Cao, Jiannong, Series editor, Dressler, Falko, Series editor, Ferrari, Domenico, Series editor, Gerla, Mario, Series editor, Kobayashi, Hisashi, Series editor, Palazzo, Sergio, Series editor, Sahni, Sartaj, Series editor, Shen, Xuemin (Sherman), Series editor, Stan, Mircea, Series editor, Xiaohua, Jia, Series editor, Zomaya, Albert, Series editor, Coulson, Geoffrey, Series editor, and Zhou, Jie, editor

Published
2009
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26. A Case Study of ICA with Multi-scale PCA of Simulated Traffic Data

Author

Xie, Shengkun, Lió, Pietro, Lawniczak, Anna T., Hutchison, David, Series editor, Kanade, Takeo, Series editor, Kittler, Josef, Series editor, Kleinberg, Jon M., Series editor, Mattern, Friedemann, Series editor, Mitchell, John C., Series editor, Naor, Moni, Series editor, Nierstrasz, Oscar, Series editor, Pandu Rangan, C., Series editor, Steffen, Bernhard, Series editor, Sudan, Madhu, Series editor, Terzopoulos, Demetri, Series editor, Tygar, Doug, Series editor, Vardi, Moshe Y., Series editor, Weikum, Gerhard, Series editor, Alippi, Cesare, editor, Polycarpou, Marios, editor, Panayiotou, Christos, editor, and Ellinas, Georgios, editor

Published
2009
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27. Wavelet-Domain Statistics of Packet Switching Networks Near Traffic Congestion

Author

Liò, Pietro, Lawniczak, Anna T., Xie, Shengkun, Xu, Jiaying, Hutchison, David, Series editor, Kanade, Takeo, Series editor, Kittler, Josef, Series editor, Kleinberg, Jon M., Series editor, Mattern, Friedemann, Series editor, Mitchell, John C., Series editor, Naor, Moni, Series editor, Nierstrasz, Oscar, Series editor, Pandu Rangan, C., Series editor, Steffen, Bernhard, Series editor, Sudan, Madhu, Series editor, Terzopoulos, Demetri, Series editor, Tygar, Doug, Series editor, Vardi, Moshe Y., Series editor, Weikum, Gerhard, Series editor, Liò, Pietro, editor, Yoneki, Eiko, editor, Crowcroft, Jon, editor, and Verma, Dinesh C., editor

Published
2008
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29. From Individual to Collective Behaviour in CA Like Models of Data Communication Networks

Author

Lawniczak, A. T., Maxie, K. P., Gerisch, A., Hutchison, David, editor, Kanade, Takeo, editor, Kittler, Josef, editor, Kleinberg, Jon M., editor, Mattern, Friedemann, editor, Mitchell, John C., editor, Naor, Moni, editor, Nierstrasz, Oscar, editor, Pandu Rangan, C., editor, Steffen, Bernhard, editor, Sudan, Madhu, editor, Terzopoulos, Demetri, editor, Tygar, Dough, editor, Vardi, Moshe Y., editor, Weikum, Gerhard, editor, Sloot, Peter M. A., editor, Chopard, Bastien, editor, and Hoekstra, Alfons G., editor

Published
2004
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30. Surface Roughening in Homoepitaxial Growth: A Lattice Gas Cellular Automaton Model

Author

Gerisch, A., Lawniczak, A. T., Budiman, R. A., Fukś, H., Ruda, H. E., Hutchison, David, editor, Kanade, Takeo, editor, Kittler, Josef, editor, Kleinberg, Jon M., editor, Mattern, Friedemann, editor, Mitchell, John C., editor, Naor, Moni, editor, Nierstrasz, Oscar, editor, Pandu Rangan, C., editor, Steffen, Bernhard, editor, Sudan, Madhu, editor, Terzopoulos, Demetri, editor, Tygar, Dough, editor, Vardi, Moshe Y., editor, Weikum, Gerhard, editor, Sloot, Peter M. A., editor, Chopard, Bastien, editor, and Hoekstra, Alfons G., editor

Published
2004
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