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About 10,000 papers for “Set function”

SET-SIZE EFFECT IN IMPRESSION FORMATION AS A FUNCTION OF SET HOMOGENEITY-HETEROGENIETY

Ramadhar SINGH · PSYCHOLOGIA · 1976

Thirty subjects rated the likableness of sixteen hypothetical persons on the basis of their personality traits.The trait descriptions were the products of a 2 X 2 x 2 X 2 factorial design based upon set heterogeneity (homogeneous vs. heterogeneous), setsize (4 vs. 8 traits), trait valence (positive vs. negative), and 2 successive judgments.For such a stimulus design, the averaging model predicted a similar set-size effect for both the homogeneous and heterogeneous sets.Analyses of the data, however, indicated that the set-size effect of the form predicted by the averaging model was limited to the homogeneous sets only (p<.0004).There was not any evidence for such an effect with thc heterogeneous sets (F=O.88).It was also found that the homogeneous sets as compared to the heterogeneous ones produced more polar judgments at both levels of trait valence (p<.0003).

Cited by 0Open access

Composite basis set of plane wave and Gaussian function or spline function

Guang-Di Zhang, Li Mao, Hongxing Xu · Acta Physica Sinica · 2023

By combining plane waves with Gaussian or spline functions, a new composite basis set is constructed in this work. As a non local basis vector, the plane wave basis group needs a large number of plane waves to expand all parts of the physical space, including the intermediate regions that are not important to our problems. Our basis set uses the local characteristics of Gaussian function or spline function at the same time, and controls the energy interval by selecting different plane wave vectors, in order to realize the partition solution of Hamiltonian matrix. Orthogonal normalization of composite basis sets is performed by using Gram-Schmidt’s orthogonalization method or Löwdin’s orthogonalization method. Considering the completeness of plane wave vector, a certain value of positive and negative should be selected at the same time. Here, by changing the absolute value of wave vector, we can select the eigenvalue interval to be solved. The plane wave with a specific wave vector value is equivalent to a trial solution in the region with gentle potential energy. The algorithm automatically combines local Gaussian or spline functions to match the difference in wave vector value between the trial solution and the strict solution. By selecting the absolute value of the wave vector in the plane wave function, the calculation of large Hamiltonian matrices turns into the calculation of multiple small matrices, together with reducing the basis numbers in the region where the electron potential changes smoothly, therefore, we can significantly reduce the computational time. As an example, we apply this basis set to a one-dimensional finite depth potential well. It can be found that our method significantly reduce the number of basis vectors used to expand the wave function while maintaining a suitable degree of computational accuracy. We also study the influence of different parameters on calculation accuracy. Finally, the above calculation method can be directly applied to the density functional theory (DFT) calculation of plasmons in silver nanoplates or other metal nanostructures. Given a reasonable tentative initial state, the ground state electron density distribution of the system can be solved by self-consistent solution through using DFT theory, and then the electromagnetic field distribution and optical properties of the system can be solved by using time-dependent density functional theory.

Cited by 1Open access

Scalar-function-driven editing on point set surfaces

Xianglin Guo, Jing Hua, Hong Qin · IEEE Computer Graphics and Applications · 2004

Three-dimensional acquisition is an increasingly popular means of creating surface models. As 3D digital photographic and scanning devices produce higher resolution images, acquired geometric data sets grow more complex in terms of the modeled objects' size, geometry, and topology. Point-based geometry is a form of 3D content acquisition popular in graphics and related visual computing areas. Point set surfaces are enjoying a renaissance in modeling and rendering, with many efforts focused on direct rendering techniques and effective modeling mechanisms. We've developed a scalar-field-driven editing paradigm and system for point set surfaces that let users manipulate and sculpt point clouds intuitively and efficiently. The paradigm is primarily based on the representation of versatile, embedded scalar fields associated with any region of the point set surface. After constructing the surface distance field from the point clouds, we incorporate the dynamic implicit volumetric model into the point-based geometry deformation. We've also integrated a haptics interface into our surface-modeling framework.

Cited by 18

Reduced Function Set Abstraction (Rfsa) For Mpi-Io

Sehrish, Saba, Wang, Jun · Journal of International Crisis and Risk Communication Research · 2012

Programmers productivity has always been overlooked as compared to the performance optimizations in high performance computing (HPC) community. In many parallel programming languages like MPI/MPI-IO, the performance optimizations are provided as various function options to the programmers. In order to write an efficient code, they are required to know the exact usage of the optimization functions, hence programmer productivity is limited. In this paper, we present RFSA, a Reduced Function Set Abstraction based on an existing parallel programming interface (MPI-IO) for I/O. The purpose of RFSA is to hide the performance optimization functions from the application developer, and relieve the application developer from deciding on a specific function. The proposed set of functions rely on a selection algorithm to decide among the most common optimizations provided by MPI-IO. We implement a selection algorithm for I/O functions like read, write, etc., and also merge a set of functions for data types and file views. By running different parallel I/O benchmarks on both medium-scale clusters and NERSC supercomputers, we show an improved programmer productivity (35.7% on average). This approach incurs an overhead of 2-5% for one particular optimization, and shows performance improvement of 17% when a combination of different optimizations is required by an application. © 2010 Springer Science + Business Media, Inc.

Cited by 0Open access

Cross Correlation Function (CCF) Data Set and Methodology

OZPARLAK, GERCEK · Data Archiving and Networked Services (DANS) · 2019

In this data set, the dynamic causality relation between Turkey Credit default swaps (CDS) and BRICS countries (Brasil, Russia, India, China, South Africa) and most important EU economies (Germany, France, the UK, Italy, Spain) are analyzed with the Cross Correlation Function (CCF) approach. Cross Correlation Function (CCF) is a two-stage method. In the first stage, CDS of the countries are estimated with EGARCH models. In the second stage, the standardized residuals and squares obtained from the EGARCH models are used for causality test in the mean and variance for CDSs. In the data set, Excel formulas and EViews Outputs / Data set were shared.

Cited by 0Open access

HOMOGENIZATION OF ENERGIES DEFINED ON PAIRS SET-FUNCTION

Margherita Solci · Communications in Contemporary Mathematics · 2009

In the present work, we deal with the problem of the asymptotic behavior of a sequence of non-homogeneous energies depending on a pair set-function of the form [Formula: see text] with u ∈ H 1 (Ω), E regular open set and the energy densities f and φ both 1-periodic in the first variable; this leads, in the Γ-limit, to a problem of homogenization. We prove a Γ-convergence result for the sequence {F ε }, showing that there is no interaction between the homogenized bulk and surface energy density; that is, even though the effect of the bulk and surface energies are at the same energy scale, oscillations in the bulk term can be neglected close to the surfaces ∂*E and S(u), where surface oscillations are dominant.

Cited by 3

Scope and Function of Motion-Picture Set Construction

Ivan C. Martin · Journal of the SMPTE · 1962

The organization, activities and responsibilities of a major studio motion-picture set construction department are described. Reference is made to the relationships involved with other technical and production activities. Technological developments are cited, and trends in the use of such materials as polyesters, plaster, plastic and foamed fabricates are discussed.

Cited by 1

HAND GRASP FUNCTION ANALYSIS BASED ON VF SET

Qiang Zhan, Xiancan Liu · International Journal of Humanoid Robotics · 2013

This paper presents a method based on virtual finger (VF) set to analyze the grasp function of bionic hand. In order to exactly represent different function units of human hand or bionic hand a more detailed classification of VF is proposed to divide VF into three types: VF FE , VF AA and VF Palm , of which a VF set describing hand grasp can be composed. The VF set cannot only describe the degree of freedom (DOF) distribution of human hand or bionic hand but also indicate which fingers take part in grasp and what motion types the fingers are. The VF sets of eight classic bionic hands and five basic human hand grasp postures are provided. The inclusion relationship between the VF set of a bionic hand and those of the basic human hand grasp postures is used to analyze the grasp function of a bionic hand. As examples the grasp functions of several classic bionic hands, such as i-LIMB Hand, HIT/DLR Hand, etc. are analyzed.

Cited by 2

ADDENDUM TO: HELLINGER INTEGRALS AND SET FUNCTION DERIVATIVES

Wayne C. Bell · 2015

ABSTRACT. Using methods from the paper in the title above we prove that a Radon-Nikodym type theorem obtained by Hatta and Wayment does, as the authors conjectured, generalize to the finitely additive case. In Theorem 3.1 and 4.1 of [1] Hatta and Wayment proved Theorem 7 below assuming the additional hypothesis that F is a a-field and •u (hence each of 7 and v) is countably additive. The extended v-integral used there is the same (see [2]) as the integral considered here. Their proof involved the Lebesgue integral and they conjectured that an analogous argument could be carried out in the Emitely additive case. What follows is a substantially different approach. We will prove a variation of one of the corollaries of Kolmogoroff&amp;apos;s differential equivalence theorem and obtain Theorem 7 as a consequence of this and certain results of W. D. L. Appling which can be found in [3]. Suppose S is a set, F is a field of subsets of S, r(F) the set of real valued functions on F, b(F) the set of bounded elements of r(F) and ba(F) the set of additive (on disjoint sets) elements of b(F). For G _C r(F) denote by G + the set of nonnegatively valued elements ofG. Let # be in ba(F) +. The integral considered below is the refinement limit of sums over finite subdivisions of S by elements of F. Ifo • C r(F), then fso•(E) exists iff fAO•(E) exists for each A C F, in which case we write the indefinite integral, fo•, by which we shall mean the function whose value ateach EG F is fEo•(I). For further details concerning the integral, undeEmed terminology and the use of the function c as a substitute for the Hahn decomposition theorem we refer the reader to [3]. As in [3] we adopt the convention that a/0 = 0 for a GR. We will need the following small variation of a theorem of W. D. L. Appling (see

Cited by 0

Stimulus-specific refreshing as a function of set

Velasquez, Anthony Gonzalez · CSUN ScholarWorks (California State University, Northridge) · 2019

Prior research has demonstrated that conscious thoughts, stemming from the external&#13;\nenvironment, can enter consciousness in an involuntary and insuppressible manner. In the&#13;\nReflexive Imagery Task (RIT) subjects are traditionally instructed to not think of the&#13;\nname of a soon to-be-presented object. Interestingly, subjects fail to suppress these&#13;\ncognitions on the majority of trials. Building on this research, two variants of the RIT&#13;\nwere designed to examine whether refreshing, a component process of executive&#13;\nfunctioning, can also arise involuntary. In Study 1, subjects were instructed to not think&#13;\nof the name of a previously presented object when presented with a cue (i.e., a dot). In&#13;\nStudy 2, subjects were presented with two objects and were instructed to not think of the&#13;\nname of the object relative to the spatial location of the cue (i.e., the dot). Results indicate&#13;\nthat involuntary subvocalizations during refreshing arose within a range of 53% and 59%&#13;\nof the trials, suggesting that refreshing is an automatic process. This research provides&#13;\nimplications for understanding the limitations of unconscious processes and the&#13;\ncontribution of conscious processing.

Cited by 0Open access

Context effects as a function of perceptual set

James Ralston, Keith Johnson · The Journal of the Acoustical Society of America · 1990

There has been continuing debate regarding claims that human listeners process tonal stimuli differently as a function of perceptual set. To address this issue, the identification of sinusoidal stimuli in subjects reporting either speech or nonspeech percepts was examined. One set of stimuli were constructed from sinusoids modeled after the formants present in a [wi-ju] continuum. Subjects reliably classified stimuli with two response categories, regardless of their perceptual set. Probit analysis revealed steeper slope for speech labeling functions. Item-by-item analysis revealed larger effects of stimulus context for nonspeech listeners. Finally, increases in response latencies were larger for speech listeners for stimuli near the labeling category boundary. The major trends observed with the first set of stimuli were also obtained with smaller magnitudes with a second, simpler set of stimuli ([æ-uh]). Taken together, these results suggest that speech listeners process sinusoidal stimuli in a qualitatively different manner than nonspeech listeners. Speech listeners appear to weight stable internal criteria more heavily than nonspeech listeners, who weight stimulus context more heavily.

Cited by 1Open access

A Next Function Set Scheduler for Serverless Applications

Zhuo Li, Xinzhou Yu, Wang Chun · 2023

Serverless computing, a dominant cloud-based application development paradigm, allows developers to focus on logic rather than deployment concerns. Despite these benefits, the cold start problem hinders Serverless applications, impacting the performance. Existing research often addresses individual function cold starts, but real-world Serverless applications involve multiple functions and internal dependencies. Furthermore, the prediction of forthcoming dependent functions is not taken into consideration. This paper explores the cold start problem in Serverless application level, proposing Next Function Set Scheduler (NFS) to address this problem. NFS discovers dependences between Serverless functions and derive function sets based on dependences. Additionally, NFS take the prediction of forthcoming function set into consideration to achieve better cold start mitigation performance. We evaluate NFS by conduct experiments on an industrial Serverless dataset. The results show that NFS reduce 28.3% cold start rate for 75% of functions and while having a lower memory usage compared with SOTA methods.

Cited by 0