Browsing by Keywords "Algorithms"
Now showing items 120 of 448

2D adaptive prediction based Gaussianity tests in microcalcification detection
(1998)With increasing use of Picture Archiving and Communication Systems (PACS), Computeraided Diagnosis (CAD) methods will be more widely utilized. In this paper, we develop a CAD method for the detection of microcalcification ... 
Accelerated phasecycled SSFP imaging with compressed sensing
(Institute of Electrical and Electronics Engineers Inc., 2015)Balanced steadystate free precession (SSFP) imaging suffers from irrecoverable signal losses, known as banding artifacts, in regions of large B0 field inhomogeneity. A common solution is to acquire multiple phasecycled ... 
Accuracy and efficiency considerations in the solution of extremely large electromagnetics problems
(2011)This study considers fast and accurate solutions of extremely large electromagnetics problems. Surface formulations of largescale objects lead to dense matrix equations involving millions of unknowns. Thanks to recent ... 
Accurate modeling of metamaterials with MLFMA
(2006)Electromagnetic modelling of large metamaterial (MM) structures employing multilevel fast multipole algorithm (MLFMA) is reported. MMs are usually constructed by periodically embedding unit cells, such as splitring ... 
Active pixel merging on hypercube multicomputers
(Springer, 1996)This paper presents algorithms developed for pixel merging phase of objectspace parallel polygon rendering on hypercubeconnected multicomputers. These algorithms reduce volume of communication in pixel merging phase by ... 
Adaptation of multiwaymerge sorting algorithm to MIMD architectures with an experimental study
(Bilkent University, 2002)Sorting is perhaps one of the most widely studied problems of computing. Numerous asymptotically optimal sequential algorithms have been discovered. Asymptotically optimal algorithms have been presented for varying ... 
Adaptive filtering approaches for nonGaussian stable processes
(Institute of Electrical and Electronics Engineers, 1995)A large class of physical phenomenon observed in practice exhibit nonGaussian behavior. In this paper, αstable distributions, which have heavier tails than Gaussian distribution, are considered to model nonGaussian ... 
Adaptive filtering for nongaussian stable processes
(IEEE, 1994)A large class of physical phenomenon observed in practice exhibit nonGaussian behavior. In this letter, astable distributions, which have heavier tails than Gaussian distribution, are considered to model nonGaussian ... 
Adaptive routing framework for network on chip architectures
(Association for Computing Machinery, 2016)In this paper we suggest and demonstrate the idea of applying multiple routing algorithms during the execution of a real application mapped on a NetworkonChip (NoC). Traffic pattern of a real application may change during ... 
Adaptive tracking of narrowband HF channel response
(WileyBlackwell Publishing, 2003)Estimation of channel impulse response constitutes a first step in computation of scattering function, channel equalization, elimination of multipath, and optimum detection and identification of transmitted signals through ... 
An adaptive, energyaware and distributed faulttolerant topologycontrol algorithm for heterogeneous wireless sensor networks
(Elsevier BV, 2016)This paper introduces an adaptive, energyaware and distributed faulttolerant topologycontrol algorithm, namely the Adaptive Disjoint Path Vector (ADPV) algorithm, for heterogeneous wireless sensor networks. In this ... 
Algebraic acceleration and regularization of the source reconstruction method with the recompressed adaptive cross approximation
(Institute of Electrical and Electronics Engineers Inc., 2014)We present a compression algorithm to accelerate the solution of source reconstruction problems that are formulated with integral equations and defined on arbitrary threedimensional surfaces. This compression technique ... 
An algorithm based on facial decomposition for finding the efficient set in multiple objective linear programming
(Elsevier, 1996)We propose a method for finding the efficient set of a multiple objective linear program based on the wellknown facial decomposition of the efficient set. The method incorporates a simple linear programming test that ... 
Algorithms and basis functions in tomographic reconstruction of ionospheric electron density
(2005)Computerized ionospheric tomography (CIT) is a method to investigate ionosphere electron density in two or three dimensions. This method provides a flexible tool for studying ionosphere. Earth based receivers record signals ... 
Algorithms for effective querying of compound graphbased pathway databases
(BioMed Central Ltd., 2009)Background: Graphbased pathway ontologies and databases are widely used to represent data about cellular processes. This representation makes it possible to programmatically integrate cellular networks and to investigate ... 
Algorithms for efficient vectorization of repeated sparse power system network computations
(IEEE, 1995)Standard sparsitybased algorithms used in power system appllcations need to be restructured for efficient vectorization due to the extremely short vectors processed. Further, intrinsic architectural features of vector ... 
Algorithms for Layout of Disconnected Graphs
(2000)We present efficient algorithms for the layout of disconnected objects in a graph (isolated nodes and components) for a specified aspect ratio. These linear and nearlinear algorithms are based on alternatebisection and ... 
Algorithms for online vertex enumeration problem
(Bilkent University, 201709)Vertex enumeration problem is to enumerate all vertices of a polyhedron P which is given by intersection of finitely many halfspaces. It is a basis for many algorithms designed to solve problems from various application ... 
Algorithms for sink mobility in wireless sensor networks to improve network lifetime
(Springer, 2012)Sink mobility is an effective solution in the literature for wireless sensor network lifetime improvement. In this paper, we propose a set of algorithms for sink site determination (SSD) and movement strategy problems of ... 
Algorithms for withincluster searches using inverted files
(Springer, 2006)Information retrieval over clustered document collections has two successive stages: first identifying the bestclusters and then the bestdocuments in these clusters that are most similar to the user query. In this paper, ...