Güncel Gönderiler: Fakülteler
Toplam kayıt 10075, listelenen: 2121-2140
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Concurrent scheduling: Efficient heuristics for online large-scale data transfers in distributed real-time environments
(IEEE Computer Soc, 2006)The static staging heuristics proposed in the literature for staging the data items associated with real-time distributed applications adhere to a method by which only one data item is transferred in each communication ... -
2-D analysis and compression of power-quality event data
(IEEE-Inst Electrical Electronics Engineers Inc, 2004)This paper introduces a novel two-dimensional (2-D) representation of the power quality event data. 2-D discrete-time wavelet transform is applied to the 2-D representation of real-life event data. The proposed representation ... -
Case studies on the use of neural networks in eutrophication modeling
(Elsevier Science BV, 2000)Artificial neural networks are becoming more and more common to be used in development of prediction models for complex systems as the theory behind them develops and the processing power of computers increase. A three ... -
On feature extraction for spam e-mail detection
(Springer-Verlag Berlin, 2006)Electronic mail is an important communication method for most computer users. Spam e-mails however consume bandwidth resource, fill-up server storage and are also a waste of time to tackle. The general way to label an ... -
A new approach to mathematical water quality modeling in reservoirs: Neural networks
(Wiley-V C H Verlag GMBH, 1998)Neural Networks are becoming more and more valuable tools for system modeling and function approximation as computing power of microcomputers increase. Modeling of complex ecological systems such as reservoir limnology is ... -
Topological median filters
(IEEE-Inst Electrical Electronics Engineers Inc, 2002)This paper describes the definition and testing of a new type of median filter for images. The topological median filter implements some existing ideas and some new ideas on fuzzy connectedness to improve, over a conventional ... -
Gradient Estimation Using Wide Support Operators
(IEEE-Inst Electrical Electronics Engineers Inc, 2009)One of the fastest methods of localizing edges in images is based on small gradient kernels, such as Sobel, Prewitt, and Roberts. Although small gradient kernels provide a fast way of computing the gradients, they have ... -
An adaptive statistical method for power quality analysis
(IEEE-Inst Electrical Electronics Engineers Inc, 2005)Digital fault recorders installed for monitoring current and/or voltage waveforms acquire and store vast amount of waveform data for post processing. Because of this, effective offline automated event detection from acquired ... -
Segmentation based coding of human face images for retrieval
(Elsevier Science BV, 2004)A coding method for face images by segmenting face regions Such as eyes, mouth, etc. is introduced. Each region is removed from the face image, leaving a smoothly interpolated background which is suitable for efficient ... -
Detection of disturbances in energy system signals using Gaussian distribution fitness test
(IEEE, 2004)In this work., a method based on higher order statistics (HOS) is proposed to detect disturbances in energy system voltage and current waveforms due to faults and various system events. During the normal operation of the ... -
Topological gradient operators for edge detection
(IEEE, 2007)Edge detection in image processing is the task of locating pixel value variations in images. First methods were directional derivative based linear filters. One of the most important problems of these methods that are based ... -
Covariance analysis of voltage waveform signature for power-quality event classification
(IEEE-Inst Electrical Electronics Engineers Inc, 2006)In this paper, covariance behavior of several features (signature identifiers) that are determined from the voltage waveform within a time window for power-quality (PQ) event detection and classification is analyzed. A ... -
Power-quality event analysis using higher order cumulants and quadratic classifiers
(IEEE-Inst Electrical Electronics Engineers Inc, 2006)In this paper, we present a novel power-quality (PQ) event detection and classification method using higher order cumulants as the feature parameter, and quadratic classifiers as the classification method. We have observed ... -
Power quality event detection using joint 2-D-wavelet subspaces
(IEEE-Inst Electrical Electronics Engineers Inc, 2004)In this work, we present a novel two-dimensional (2-D) representation of power system waveforms for the automatic analysis and detection of transient events. The representation is composed of a matrix whose rows are formed ... -
Supervisory controller design to enforce reversibility and liveness in colored Petri nets
(Inst Control Robotics & Systems-Icros, 2007)Colored Petri net model which is a model of discrete event systems is considered in this work. A supervisory controller which enforces reversibility and liveness simultaneously is presented. Furthermore, the algorithms, ... -
Analysis of in-line Fresnel holograms via chirp separation
(Spie-Int Society Optical Engineering, 2006)A two-step computational technique for object reconstruction from digitized in-line Fresnel holograms of particle fields is proposed that eliminates the preliminary stage of depth extraction, when the goal is recovery of ... -
Filtering in the joint time/chirp-rate domain for separation of quadratic and cubic phase chirp signals
(Springer International Publishing Ag, 2012)This article investigates the possibility and convenience of a filtering operation in the joint time/chirp-rate (TCR) domain, and proposes a novel linear TCR filter for decomposing multicomponent signals into their quadratic ... -
A decentralized discrete-time controller for dynamic routing
(Taylor & Francis LTD, 1998)A decentralized controller for dynamic routing in multi-destination large-scale data communication networks is presented. A dynamic model, which can incorporate possibly time-varying different processing delays at different ... -
A new real time home power management system
(Elsevier Science Sa, 2015)In this work, a real time home power management (RTHPM) scheme and the corresponding rule based control algorithm (RTHPM algorithm) are presented. The proposed system produces a real time solution to reduce the electricity ... -
Decentralized Controller Design for Forbidden States Avoidance in Timed Discrete Event Systems
(Ccc Publ-Agora University, 2010)A decentralized controller design approach is developed for the timed discrete event systems which are modelled by timed automata in this work. An approach, called augmentation, is presented to obtain the new modelling ...
