نتایج جستجو برای: point data

تعداد نتایج: 2801551  

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه علامه طباطبایی - دانشکده اقتصاد 1393

due to extraordinary large amount of information and daily sharp increasing claimant for ui benefits and because of serious constraint of financial barriers, the importance of handling fraud detection in order to discover, control and predict fraudulent claims is inevitable. we use the most appropriate data mining methodology, methods, techniques and tools to extract knowledge or insights from ...

Journal: :iranian journal of public health 0
nr ghorbani dept. of health information management, school of health management and information sciences, tehran university of medical sciences, tehran, iran. m ahmadi f sadoughi m ghanei

this study defines necessary data elements required for the research information system in the domain of health, and its level of accountability to national health research indicators from the experts' perspective is being explored.this qualitative study was conducted based on comparative approach using the focus group method. data were collected through 6 semi-structured group discussions held...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه تهران 1370

the subjects of the study are only the tefl teachers and students at gilan university. to obtain the desired data, a questionnaire which was based on the theories and disecussions gathered, was used as the main data gathering instrument. to determine the degree of relationship between variables, covariance and pearson product moment correlation coefficient were the formulas applied. the data we...

2015
S. Khan A. Maurel Y. Zhang

We study the informational content of factor structures in discrete triangular systems. Factor structures have been employed in a a variety of settings in cross sectional and panel data models, and in this paper we formal quantify their informational content in a bivariate system often employed in the treatment e↵ects literature. Our main findings are that under the factor structures often impo...

2015
Didier Rullière Tony Garnier Elena Di Bernardino

Archimedean copulas are copulas determined by a specific real function, called the generator. Composited with the copula at a given point, this generator can be expressed as a linear form of generators of the considered point components. In this paper, we discuss the case where this function is expressed as a quadratic form (called here multivariate Archimatrix copulas). This allows extending A...

2012
Sanghee Lim Nigel P. Melville

Does the investment in firm-specific IT resources lead to better alliance performance? This study proposes to answer this question by empirically examining the effect of a firm’s IT resources on the performance consequences of individual alliances for firms. Drawing upon previous works on organizational learning and dynamic capability, we identify and discuss key mechanisms that convert IT reso...

Journal: :CoRR 2004
Jean-Luc Falcone Paul Albuquerque

In this short technical report, we define on the sample space R D a distance between data points which depends on their correlation. We also derive an expression for the center of mass of a set of points with respect to this distance. 1 Preliminaries For a sample point x = (x1, . . . , xD) ∈ R, we define the average

Journal: :Applied Mathematics and Computer Science 2007
David W. Pearson

In this paper we introduce a method of classification based on data probes. Data points are considered as point masses in space and a probe is simply a particle that is launched into the space. As the probe passes by data clusters, its trajectory will be influenced by the point masses. We use this information to help us to find vertical trajectories. These are trajectories in the input space th...

2008
Radu Bogdan Rusu Zoltan Csaba Marton Nico Blodow Michael Beetz

In this paper we investigate the acquisition of 3D functional object maps for outdoor urban scenes from point cloud data, using techniques which worked reliably for indoor household environments in our previous work[1]. By employing 3D geometry reasoning methods, our approach can successfully segment the important parts of the environment and give semantic annotations to the underlying data poi...

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