Browsing by Keywords "Set theory"
Now showing items 120 of 43

Adaptive decision fusion based cooperative spectrum sensing for cognitive radio systems
(2011)In this paper, an online Adaptive Decision Fusion (ADF) framework is proposed for the central spectrum awareness engine of a spectrum sensor network in Cognitive Radio (CR) systems. Online learning approaches are powerful ... 
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 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 ... 
Atomic strings of group IV, IIIV, and IIVI elements
(American Institute of Physics, 2004)A systematic firstprinciples study of atomic strings made by group IV, IIIV, and IIVI elements has revealed interesting mechanical, electronic, and transport properties. The double bond structure underlies their unusual ... 
Automatic detection of geospatial objects using multiple hierarchical segmentations
(Institute of Electrical and Electronics Engineers, 200807)The objectbased analysis of remotely sensed imagery provides valuable spatial and structural information that is complementary to pixelbased spectral information in classification. In this paper, we present novel methods ... 
Denoising using projections onto the epigraph set of convex cost functions
(Institute of Electrical and Electronics Engineers Inc., 2014)A new denoising algorithm based on orthogonal projections onto the epigraph set of a convex cost function is presented. In this algorithm, the dimension of the minimization problem is lifted by one and feasibility sets ... 
Distancebased classification methods
(Taylor & Francis, 1999)Given a set of points in a Euclidean space, and a partitioning of this 'training set' into two or more subsets ('classes'), we consider the problem of identifying a 'reasonable' assignment of another point in the Euclidean ... 
A distributed positioning algorithm for cooperative active and passive sensors
(2010)The problem of positioning a target node is studied for wireless sensor networks with cooperative active and passive sensors. Twoway timeofarrival and timedifferenceofarrival measurements made by both active and ... 
Entropy functional based adaptive decision fusion framework
(2012)In this paper, an entropy functional based online adaptive decision fusion framework is developed for image analysis and computer vision applications. In this framework, it is assumed that the compound algorithm consists ... 
ERP source reconstruction by using Particle Swarm Optimization
(2009)Localization of the sources of Event Related Potentials (ERP) is a challenging inverse problem, especially to resolve sources of neural activity occurring simultaneously. By using an effective dipole source model, we propose ... 
An experimental setup for performance analysis of an online adaptive cooperative spectrum sensing scheme for both inphase and quadrature branches
(2011)Spectrum sensing is one of the most essential characteristics of cognitive radios (CRs). Robustness and adaptation to varying wireless propagation scenarios without compromising the sensing accuracy are desirable features ... 
An experimental validation of an online adaptive cooperation scheme for spectrum sensing
(2011)Cooperative spectrum sensing methods in the literature assume a static communication scenario with fixed channel and propagation environment characteristics. In order to maintain the level of sensing reliability and ... 
Filtered Variation method for denoising and sparse signal processing
(2012)We propose a new framework, called Filtered Variation (FV), for denoising and sparse signal processing applications. These problems are inherently illposed. Hence, we provide regularization to overcome this challenge by ... 
Finding faces in news photos using both face and name information
(2006)We propose a method to associate names and faces for querying people in large news photo collections. On the assumption that a person's face is likely to appear when his/her name is mentioned in the caption, first all the ... 
Hypersolver: a graphical tool for commonsense set theory
(Elsevier, 1995)This paper investigates an alternative set theory (due to Aczel) called the Hyperset Theory. Aczel uses a graphical representation for sets and thereby allows the representation of nonwellfounded sets. A program, called ... 
Improved graphentropy bound for perfect hashing
(IEEE (Institute of Electrical and Electronics Engineers), 1994)We give an improved graphentropy bound on the size of families of perfect hash functions. Examples are given illustrating that the new bound improves previous bounds in several instances. 
Inducing translation templates with type constraints
(Springer, 2005)This paper presents a generalization technique that induces translation templates from a given set of translation examples by replacing differing parts in the examples with typed variables. Since the type of each variable ... 
Issues in commonsense set theory
(Springer/Kluwer Academic Publishers, 1994)The success of set theory as a foundation for mathematics inspires its use in artificial intelligence, particularly in commonsense reasoning. In this survey, we briefly review classical set theory from an AI perspective, ... 
Language evolution and information theory
(2004)The use of Nowak's model to study the language evolution and to settle a conjecture by Nowak was discussed. These models explained the ways by which natural selection can lead to the gradual emergence of human language. ... 
Lattice dynamics and elastic properties of lanthanum monopnictides
(2008)In this study, first principles calculation results of the second order elastic constants and lattice dynamics of two lanthanum monopnictides, LaN and LaBi, which crystallize in rocksalt structure (B1 phase), are presented. ...