نتایج جستجو برای: parameter spaces are high dimensional

تعداد نتایج: 6518038  

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه علامه طباطبایی - دانشکده اقتصاد 1389

abstract: about 60% of total premium of insurance industry is pertained?to life policies in the world; while the life insurance total premium in iran is less than 6% of total premium in insurance industry in 2008 (sigma, no 3/2009). among the reasons that discourage the life insurance industry is the problem of adverse selection. adverse selection theory describes a situation where the inf...

2003
Jing Yang Matthew O. Ward Elke A. Rundensteiner Shiping Huang

Traditional visualization techniques for multidimensional data sets, such as parallel coordinates, glyphs, and scatterplot matrices, do not scale well to high numbers of dimension. A common approach to solving this problem is dimensionality reduction. Existing dimensionality reduction techniques usually generate lower dimensional spaces that have little intuitive meaning to users and allow litt...

2006
Ratko Orlandic Jack Lukaszuk Sachin Kulkarni Wai Gen Yee

This paper addresses the problem of supporting region queries over a dynamically growing set of data in feature spaces with many dimensions. It formulates two principles of indexing data in high-dimensional feature spaces and presents an approach to high-dimensional indexing with these principles in mind. The combined goal of the two principles is to increase the density of index regions, which...

Journal: :J. Vis. Lang. Comput. 2017
Takayuki Itoh Ashnil Kumar Karsten Klein Jinman Kim

Parallel coordinate plots (PCPs) are among the most useful techniques for the visualization and exploration of high-dimensional data spaces. They are especially useful for the representation of correlations among the dimensions, which identify relationships and interdependencies between variables. However, within these high-dimensional spaces, PCPs face difficulties in displaying the correlatio...

Journal: :Pattern Recognition 2013
Mathieu Fauvel Jocelyn Chanussot Jon Atli Benediktsson Alberto Villa

The classification of high dimensional data with kernel methods is considered in this article. Exploiting the emptiness property of high dimensional spaces, a kernel based on the Mahalanobis distance is proposed. The computation of the Mahalanobis distance requires the inversion of a covariance matrix. In high dimensional spaces, the estimated covariance matrix is ill-conditioned and its invers...

Journal: :Mathematics 2023

Extracting hierarchical structure in graph data is becoming an important problem fields such as natural language processing and developmental biology. Hierarchical structures can be extracted by embedding methods non-Euclidean spaces, Poincaré Lorentz embedding, it now possible to learn efficient taking advantage of the these spaces. In this study, we propose into another type metric space call...

Journal: :International Journal of Industrial Engineering Computations 2012

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