Implementation of cooperative communications using ultrasonic wireless terminals Ses-üstü telsi̇z termi̇naller kullanilarak i̇şbi̇rli̇kli̇ i̇leti̇şi̇mi̇n gerçekleşti̇ri̇lmesi̇

Özdemir, Özgür
Yılmaz, Ali Özgür
Herdem, Saadetdin
In this paper, a feature filtering algorithm for brain-computer interface which includes classification of EEG data is proposed. By this method, the features are evaluated according to a criterion based on the Mahalanobis distance between the classes. For some EEG data classification problems, the problem may be determining the features to be extracted, however for the problem of distinguishing between right, left and forward movement imagination, the features that most benefits in classification cannot be determined beforehand. Therefore, features are selected method from a set of all possible features by the proposed filtering to increase the performance and speed of the classifier


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Sattari, Masoud; Toroslu, İsmail Hakkı; Department of Computer Engineering (2013)
In this study, a new method for analyzing and representing the discriminative information, distributed in functional Magnetic Resonance Imaging (fMRI) data, is proposed. For this purpose, a local mesh with varying size is formed around each voxel, called the seed voxel. The relationships among each seed voxel and its neighbors are estimated using a linear regression equation by minimizing the expectation of the squared error. This squared error coming from linear regression is used to calculate various info...
Graphical user interface for inverse problem of electrocardiography Elektrokardiyografi ters problemi için grafik kullanici arayüzü
Gavgani, Alireza Mazloumi; Serinağaoğlu Doğrusöz, Yeşim (2010-07-15)
In this study several inverse problem of electrocardiography (ECG) solution algorithms are combined to be accessed with a single graphical user interface. This interface is designed to be used for both research and educational purposes. Although this interface is mainly designed for the inverse problem of ECG it could be benefited to solve other inverse problems as well. This interface provides a number of error functions as well as a direct link to Map3D program which provides a 3 dimensional display of th...
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Ündeğer, Çağatay; Polat, Faruk; Department of Computer Engineering (2007)
In this thesis, we address the problem of real-time path search in partially observable grid worlds, and propose two single agent and one multi-agent search algorithm. The first algorithm, Real-Time Edge Follow (RTEF), is capable of detecting the closed directions around the agent by analyzing the nearby obstacles, thus avoiding dead-ends in order to reach a static target more effectively. We compared RTEF with a well-known algorithm, Real-Time A* (RTA*) proposed by Korf, and observed significant improvemen...
Synthesis of past time signal temporal logic formulas using monotonicity properties
Ergürtuna, Mert.; Aydın Göl, Ebru; Department of Computer Engineering (2020)
Due to its expressivity and efficient algorithms, Signal Temporal Logic (STL) is widely used in runtime verification, formal control and analysis of time series data. While it is relatively easy to define an STL formula, simulate the system and mark the unexpected behaviors according to the formula as in the testing process, finding an STL formula that would detect the underlying cause of the errors is a complicated process. The main motivation of this thesis is to find a method that would explain the event...
A genetic algorithmfor structural optimization
Taşkınoğlu, Evren Eyüp; Oral, Süha; Department of Mechanical Engineering (2006)
In this study, a design procedure incorporating a genetic algorithm (GA) is developed for optimization of structures. The objective function considered is the total weight of the structure. The objective function is minimized subjected to displacement and strength requirements. In order to evaluate the design constraints, finite element analysis are performed either by using conventional finite element solvers (i.e. MSC/NASTRAN®) or by using in-house codes. The application of the algorithm is shown by a num...
Citation Formats
Ö. Özdemir, A. Ö. Yılmaz, and S. Herdem, “Implementation of cooperative communications using ultrasonic wireless terminals Ses-üstü telsi̇z termi̇naller kullanilarak i̇şbi̇rli̇kli̇ i̇leti̇şi̇mi̇n gerçekleşti̇ri̇lmesi̇,” 2011, Accessed: 00, 2020. [Online]. Available: