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» On Compression of Parse Trees
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SSDBM
2003
IEEE
95views Database» more  SSDBM 2003»
14 years 1 months ago
A Quad-Tree Based Multiresolution Approach for Two-dimensional Summary Data
In many application contexts, like statistical databases, scientific databases, query optimizers, OLAP, and so on, data are often summarized into synopses of aggregate values. Su...
Francesco Buccafurri, Filippo Furfaro, Domenico Sa...
MM
1994
ACM
143views Multimedia» more  MM 1994»
14 years 23 days ago
Quad-Tree Segmentation for Texture-Based Image Query
In this paper we propose a technique for segmenting images by texture content with application to indexing images in a large image database. Using a quad-tree decomposition, textu...
Jonathan M. Smith, Shih-Fu Chang
IJCAI
2003
13 years 10 months ago
Web Page Cleaning for Web Mining through Feature Weighting
Unlike conventional data or text, Web pages typically contain a large amount of information that is not part of the main contents of the pages, e.g., banner ads, navigation bars, ...
Lan Yi, Bing Liu
VLDB
2000
ACM
166views Database» more  VLDB 2000»
14 years 7 days ago
Oracle8i Index-Organized Table and Its Application to New Domains
Primary B+ -tree, a variant of B+ -tree structure with row data in leaf blocks, is an ideal storage organization for queries involving exact match and/or range search on primary k...
Jagannathan Srinivasan, Souripriya Das, Chuck Frei...
EDBT
2004
ACM
313views Database» more  EDBT 2004»
14 years 8 months ago
XQzip: Querying Compressed XML Using Structural Indexing
XML makes data flexible in representation and easily portable on the Web but it also substantially inflates data size as a consequence of using tags to describe data. Although many...
James Cheng, Wilfred Ng