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BaSAR—A tool in R for frequency detection

Emma Granqvist, Matthew Hartley, Richard J. Morris
2012 Biosystems (Amsterdam. Print)  
Here we present BaSAR, Bayesian Spectrum Analysis in R, a package for extracting frequency information from time series data.  ...  The core functions are designed for detecting a single key frequency, without the need for data pre-processing such as detrending.  ...  RJM and MH are grateful for support from the BBSRC. Appendix A.  ... 
doi:10.1016/j.biosystems.2012.07.004 pmid:22925599 pmcid:PMC3462997 fatcat:pn4dnoagufhetmomj2frisd7da

Oscillatory Brain Dynamics, Wavelet Analysis, and Cognition

Erol Basar, Tamer Demiralp, Martin Schürmann, Canan Basar-Eroglu, Ahmet Ademoglu
1999 Brain and Language  
of the brain (Başar, 1980) .  ...  The present article outlines the basic features of ERP frequency analysis in comparison to ERP wavelet analysis, a recently introduced method of time-frequency analysis.  ...  The wavelet transform is a powerful tool for the time-frequency (or timescale) representation of a time series.  ... 
doi:10.1006/brln.1998.2029 pmid:10080869 fatcat:z27duvduqndtfmvsmsrb5et22i

Event-related oscillations are 'real brain responses' — wavelet analysis and new strategies

E.rol Başar, M.artin Schürmann, T.amer Demiralp, C.anan Başar-Eroglu, A.hmet Ademoglu
2001 International Journal of Psychophysiology  
The EEG consists of the activity of an ensemble of generators producing rhythmic activity in several frequency ranges. These oscillators are active usually in a random way.  ...  In contrast, the wavelet analysis is based on signal retrie¨al and selection among a large number of sweeps recorded in a given physiological or psychological experiment.  ...  Knowledge of the abstract frequency characteristics is only a useful tool for the mathe-matical representations of the biological system.  ... 
doi:10.1016/s0167-8760(00)00135-5 pmid:11163891 fatcat:dtyctaanazbihkmmnibv6kqkty

Indices of Power in Optimal IDS Default Configuration: Theory and Examples [article]

Quanyan Zhu, Tamer Basar
2011 arXiv   pre-print
Intrusion Detection Systems (IDSs) are becoming essential to protecting modern information infrastructures.  ...  We apply the concepts of indices of power, namely, Shapley value and Banzhaf-Coleman index, from cooperative game theory to quantify the influence or contribution of libraries in an IDS with respect to  ...  Acknowledgement The first author acknowledges the fruitful discussions with members of the security research group at the University of Waterloo, in particular, Dr. I. Aib and Prof. R. Boutaba.  ... 
arXiv:1110.1862v1 fatcat:c7e7atrahfhqdmkmn3hamlzdca

Security Games with Decision and Observation Errors [article]

Kien C. Nguyen, Tansu Alpcan, Tamer Basar
2010 arXiv   pre-print
The players will try to compensate for these errors based on the information they have.  ...  We examine convergence property of the game in such scenarios, and establish convergence to the equilibrium point under some mild assumptions when both players are restricted to two actions.  ...  In [6] , the author examines the intrusion detection problem in heterogenous networks as a nonzero-sum static game.  ... 
arXiv:1003.2767v1 fatcat:poguvcup7jfjvdjshfkltrb27u

Communication by means of Thermal Noise: Towards Networks with Extremely Low Power Consumption [article]

Ertugrul Basar
2022 arXiv   pre-print
In this paper, the paradigm of thermal noise communication (TherCom) is put forward for future wired/wireless networks with extremely low power consumption.  ...  Our theoretical and computer simulation findings reveal that noise variance detection, supported by sample variance estimation with carefully optimized decision thresholds, is a reliable way of extracting  ...  In other words, the use of background noise signals might be a powerful tool to hide information signals.  ... 
arXiv:2206.11333v1 fatcat:cmi3evps3vghfoi3qek44rnotm

Event-related delta oscillatory responses of Alzheimer patients

G. Yener, B. Güntekin, E Başar
2008 European Journal of Neurology  
Event-related oscillations (ERO) provide an useful tool for detecting subtle abnormalities of cognitive processes with high temporal resolution.  ...  Methods: In the present report, event-related oscillations of patients with AD were analyzed by using a visual oddball paradigm.  ...  Eventrelated oscillations (ERO) provide a powerful technique, with high temporal resolution, which can be used as a tool for detecting subtle abnormalities of cognitive processes [1, 2] .  ... 
doi:10.1111/j.1468-1331.2008.02100.x pmid:18410376 fatcat:cil5wsdvz5hjhbqu7epzb5ejsa

Chronic Kidney Disease Prediction with Reduced Individual Classifiers

Merve Dogruyol Basar, Aydin Akan
2018 Electrica  
It calculates a set of proba-bilities by calculating the frequency and combinations of values in the data.  ...  The authors compared the performance of two classifiers in terms of accuracy and execution time and used Weka tool for execution.  ... 
doi:10.26650/electrica.2018.99255 fatcat:6gghezhrwbgkll7h5dig2xmgpq

Modeling and optimization of face milling process parameters for AISI 4140 steel

Gokhan Basar, Funda Kahraman
2018 Tehnički glasnik  
The optimal control factors for surface quality were detected by using the Taguchi technique. Experimental trials were designed according to the Taguchi L18 (21x33) orthogonal array.  ...  The optimal performance characteristics were obtained as a 0.5 mm depth of cut, 0.08 mm/rev feed rate, 325 m/min cutting speed and 1 number of inserts by using the Taguchi method.  ...  The milling process was applied by using a R 390-020B20-11M tool holder and a TiAlN+TiN, PVD-coated, R 390-11 T308M-PM 1030 solid carbide insert.  ... 
doi:10.31803/tg-20180201124648 fatcat:euinn57hkraddcqzqevws7pusa

Indices of Power in Optimal IDS Default Configuration: Theory and Examples [chapter]

Quanyan Zhu, Tamer Başar
2011 Lecture Notes in Computer Science  
Intrusion Detection Systems (IDSs) are becoming essential to protecting modern information infrastructures.  ...  We apply the concepts of indices of power, namely, Shapley value and Banzhaf-Coleman index, from cooperative game theory to quantify the influence or contribution of libraries in an IDS with respect to  ...  Acknowledgement The first author acknowledges the fruitful discussions with members of the security research group at the University of Waterloo, in particular, Dr. I. Aib and Prof. R. Boutaba.  ... 
doi:10.1007/978-3-642-25280-8_3 fatcat:hxukoih4wrculaxulcv6gtfy4m

Event related oscillations in euthymic patients with bipolar disorder

Ayşegül Özerdem, Sibel Kocaaslan, Zeliha Tunca, Erol Başar
2008 Neuroscience Letters  
a b s t r a c t Bipolar disorder involves dysfunction in gamma amino butyric acid (GABA)/glutamatergic systems and neural circuits that regulate cognitive processing.  ...  Delta frequency bands, as representative of signal detection and decision-making, were obtained by digital filtering.  ... 
doi:10.1016/j.neulet.2008.07.081 pmid:18687385 fatcat:22px4sizg5arjhpazo3ps24xuu

Lecture Notes on Control System Theory and Design [article]

Tamer Basar and Sean Meyn, William R. Perkins
2020 arXiv   pre-print
This is a fundamental course on the modern theory of dynamical systems and their control, and builds on a first-level course in control that emphasizes frequency-domain methods (such as the course ECE  ...  This is a collection of the lecture notes of the three authors for a first-year graduate course on control system theory and design (ECE 515 , formerly ECE 415) at the ECE Department of the University  ...  loop shaping in a frequency domain design.  ... 
arXiv:2007.01367v1 fatcat:xhcctnk3nndmfkmt6pnx6vrvye

Game Theoretic Methods for the Smart Grid [article]

Walid Saad, Zhu Han, H. Vincent Poor, Tamer Başar
2012 arXiv   pre-print
In each area, the state-of-the-art contributions are gathered and a systematic treatment, using game theory, of some of the most relevant problems for future power systems is provided.  ...  In a nutshell, this article provides a comprehensive account of the application of game theory in smart grid systems tailored to the interdisciplinary characteristics of these systems that integrate components  ...  Note that, in Europe, the maximum frequency for narrowband PLC is 148.5 kHz while in the USA it can go up to 500 kHz [59] .  ... 
arXiv:1202.0452v1 fatcat:r7j2gqutkzeibksmscjb2qa7kq

Wavelet entropy: a new tool for analysis of short duration brain electrical signals

Osvaldo A. Rosso, Susana Blanco, Juliana Yordanova, Vasil Kolev, Alejandra Figliola, Martin Schürmann, Erol Başar
2001 Journal of Neuroscience Methods  
Further, specific quantifiers were derived to characterize how stimulus affects electrical events in terms of frequency synchronization (tuning) in the event related potentials.  ...  Since traditional electrical brain signal analysis is mostly qualitative, the development of new quantitative methods is crucial for restricting the subjectivity in the study of brain signals.  ...  This gives a suitable tool for detecting and characterizing specific phenomena in time and frequency planes.  ... 
doi:10.1016/s0165-0270(00)00356-3 pmid:11166367 fatcat:tte7zjx7fvfxjlw4q7pyqeney4

Intrusion Response as a Resource Allocation Problem

Michael Bloem, Tansu Alpcan, Tamer Basar
2006 Proceedings of the 45th IEEE Conference on Decision and Control  
By modeling the interaction between malicious attacker(s) and the intrusion detection system (IDS) as a noncooperative non-zero sum game, we develop an algorithm for optimal allocation of the system administrator's  ...  time available for responding to attacks, which is treated as a scarce resource.  ...  The first terms in these equations are zero-sum and represent the cost of false-alarms and benefit of detection for the IDS and the cost of capture and benefit of deception for the attacker.  ... 
doi:10.1109/cdc.2006.376981 dblp:conf/cdc/BloemAB06 fatcat:6aqy77bu4jbbtf6oukfkwjf6gu
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