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GIS
1999
ACM
15 years 10 months ago
A Provably Efficient Computational Model for Approximate Spatiotemporal Retrieval
: The paper is concerned with the effective and efficient processing of spatiotemporal selection queries under varying degrees of approximation. Such queries may employ operators l...
Vasilis Delis, Christos Makris, Spyros Sioutas
PDIS
1994
IEEE
15 years 10 months ago
A Predicate-based Caching Scheme for Client-Server Database Architectures
We propose a new client-side data-caching scheme for relational databases with a central server and multiple clients. Data are loaded into each client cache based on queries execut...
Arthur M. Keller, Julie Basu
ICDCS
2007
IEEE
15 years 10 months ago
GeoGrid: A Scalable Location Service Network
This paper presents GeoGrid, a geographical location service overlay network system, for providing scalable location-based services to a large and growing number of mobile users. ...
Jianjun Zhang, Gong Zhang, Ling Liu
CIKM
2006
Springer
15 years 10 months ago
Efficient join processing over uncertain data
In an uncertain database, each data item is modeled as a range associated with a probability density function. Previous works for this kind of data have focussed on simple queries...
Reynold Cheng, Sarvjeet Singh, Sunil Prabhakar, Ra...
TREC
2003
15 years 7 months ago
Improving the Robustness of Language Models - UIUC TREC 2003 Robust and Genomics Experiments
In this paper, we report our experiments in the TREC 2003 Genomics Track and the Robust Track. A common theme that we explored is the robustness of a basic language modeling retri...
ChengXiang Zhai, Tao Tao, Hui Fang, Zhidi Shang