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MA
2010
Springer
140views Communications» more  MA 2010»
15 years 2 months ago
On the limiting spectral distribution of the covariance matrices of time-lagged processes
We consider two continuous-time Gaussian processes, one being partially correlated to a time-lagged version of the other. We first give the limiting spectral distribution for the ...
Christian Y. Robert, Mathieu Rosenbaum
ICDE
2006
IEEE
192views Database» more  ICDE 2006»
16 years 5 months ago
Approximating Aggregation Queries in Peer-to-Peer Networks
Peer-to-peer databases are becoming prevalent on the Internet for distribution and sharing of documents, applications, and other digital media. The problem of answering large scal...
Benjamin Arai, Gautam Das, Dimitrios Gunopulos, Va...
ICDE
2005
IEEE
86views Database» more  ICDE 2005»
16 years 5 months ago
Proactive Caching for Spatial Queries in Mobile Environments
Semantic caching enables mobile clients to answer spatial queries locally by storing the query descriptions together with the results. However, it supports only a limited number o...
Haibo Hu, Jianliang Xu, Wing Sing Wong, Baihua Zhe...
SIGMOD
2009
ACM
189views Database» more  SIGMOD 2009»
16 years 4 months ago
Query segmentation using conditional random fields
A growing mount of available text data are being stored in relational databases, giving rise to an increasing need for the RDBMSs to support effective text retrieval. In this pape...
Xiaohui Yu, Huxia Shi
SIGIR
2009
ACM
15 years 10 months ago
Click-through prediction for news queries
A growing trend in commercial search engines is the display of specialized content such as news, products, etc. interleaved with web search results. Ideally, this content should b...
Arnd Christian König, Michael Gamon, Qiang Wu