Sciweavers

1529 search results - page 235 / 306
» An Abstraction Method Using a Semantic Engine Based on Langu...
Sort
View
ICC
2007
IEEE
197views Communications» more  ICC 2007»
14 years 2 months ago
Basis Expansion Model and Doppler Diversity Techniques for Frequency Domain Channel Estimation and Equalization in DS-CDMA Syste
Abstract— In this paper, we propose a frequency domain adaptive estimation of Doppler shifts for multiple Doppler subpaths in direct sequence code division multiple access (DS-CD...
Tianqi Wang, Cheng Li, Hsiao-Hwa Chen
ICDE
2008
IEEE
166views Database» more  ICDE 2008»
14 years 9 months ago
A Clustered Index Approach to Distributed XPath Processing
Supporting top-k queries over distributed collections of schemaless XML data poses two challenges. While XML supports expressive query languages such as XPath and XQuery, these la...
Georgia Koloniari, Evaggelia Pitoura
WWW
2006
ACM
14 years 9 months ago
Constructing virtual documents for ontology matching
On the investigation of linguistic techniques used in ontology matching, we propose a new idea of virtual documents to pursue a cost-effective approach to linguistic matching in t...
Yuzhong Qu, Wei Hu, Gong Cheng
NLPRS
2001
Springer
14 years 21 days ago
Learning Strategies In A Grammar Induction Framework
This work extends a semi-automatic grammar induction approach previously proposed in [1]. We investigate the use of Information Gain (IG) in place of Mutual Information (MI) for g...
Chin-Chung Wong, Helen M. Meng, Kai-Chung Siu
GIS
2000
ACM
13 years 12 months ago
A high-performance Web-based system design for spatial data accesses
With the increasing use of geographical data in real-world applications, Geographic Information Systems (GISs) have recently emerged as a fruitful area for research. Nowadays, a G...
Shu-Ching Chen, Xinran Wang, Naphtali Rishe, Mark ...