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COMPSAC
2003
IEEE
15 years 9 months ago
A Supervised Visual Wrapper Generator for Web-Data Extraction
Extracting data from Web pages using wrappers is a fundamental problem arising in a large variety of applications of vast practical interest. In this paper, we propose a novel sch...
Xiaofeng Meng, Haiyan Wang, Dongdong Hu, Chen Li
ICIP
1999
IEEE
16 years 6 months ago
Quadtrees for Embedded Surface Visualization: Constraints and Efficient Data Structures
The quadtree data structure is widely used in digital image processing and computer graphics for modeling spatial segmentation of images and surfaces. A quadtree is a tree in whic...
Laurent Balmelli, Jelena Kovacevic, Martin Vetterl...
IJCSS
2000
98views more  IJCSS 2000»
15 years 4 months ago
The generative topographic mapping as a principal model for data visualization and market segmentation: an electronic commerce c
The process of extracting knowledge from data involves the discovery of patterns of interest which may be implicit, for instance, in speci
Alfredo Vellido, Paulo J. G. Lisboa, Karon Meehan
JIIS
2006
113views more  JIIS 2006»
15 years 4 months ago
Spatial ordering and encoding for geographic data mining and visualization
: Geographic information (e.g., locations, networks, and nearest neighbors) are unique and different from other aspatial attributes (e.g., population, sales, or income). It is a ch...
Diansheng Guo, Mark Gahegan
CHI
2002
ACM
16 years 4 months ago
Breakdown visualization: multiple foci polyarchies of values and attributes
Breakdown analysis involves decomposing data into subgroups to allow for comparison and identification of problem areas. Good analysis requires the ability to group data based on ...
Sandeep Prabhakar, Nathan Conklin, Chris North, Mu...