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» Selectivity Estimation for Spatial Joins
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ICDE
2000
IEEE
158views Database» more  ICDE 2000»
14 years 9 months ago
Analyzing Range Queries on Spatial Data
Analysis of range queries on spatial (multidimensional) data is both important and challenging. Most previous analysis attempts have made certain simplifying assumptions about the...
Ji Jin, Ning An, Anand Sivasubramaniam
ISM
2008
IEEE
83views Multimedia» more  ISM 2008»
14 years 2 months ago
Fast and Flexible Tree Rendering with Enhanced Visibility Estimation
We present a set of techniques to simplify tree models for faster rendering while retaining their visual resemblance to the original model. This goal is achieved by setting a budg...
Jessy Lee, C. C. Jay Kuo
SEMWEB
2010
Springer
13 years 5 months ago
Using Reformulation Trees to Optimize Queries over Distributed Heterogeneous Sources
Abstract. In order to effectively and quickly answer queries in environments with distributed RDF/OWL, we present a query optimization algorithm to identify the potentially relevan...
Yingjie Li, Jeff Heflin
ICMCS
2006
IEEE
181views Multimedia» more  ICMCS 2006»
14 years 1 months ago
A Fast Downsizing Video Transcoder for H.264/AVC with Rate-Distortion Optimal Mode Decision
This paper focuses on the mode decision and motion selection problem when H.264/AVC video streams are transcoded in spatial resolution. A fast downsizing transcoding scheme is dev...
Huifeng Shen, Xiaoyan Sun, Feng Wu, Houqiang Li, S...
ICMCS
2006
IEEE
136views Multimedia» more  ICMCS 2006»
14 years 1 months ago
Motion Aligned Spatial Scalable Video Coding
A motion aligned spatial scalable video coding scheme (MA-SSC) is proposed in this paper. Different from the traditional spatial scalable coding schemes derived from MPEG-2, in th...
Debing Liu, Yuwen He, Shipeng Li, Debin Zhao, Wen ...