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SIGIR
2010
ACM
13 years 2 months ago
A joint probabilistic classification model for resource selection
Resource selection is an important task in Federated Search to select a small number of most relevant information sources. Current resource selection algorithms such as GlOSS, COR...
Dzung Hong, Luo Si, Paul Bracke, Michael Witt, Tim...
VLDB
1999
ACM
124views Database» more  VLDB 1999»
13 years 6 months ago
Cost Models DO Matter: Providing Cost Information for Diverse Data Sources in a Federated System
An important issue for federated systems of diverse data sources is optimizing cross-source queries, without building knowledge of individual sources into the optimizer. This pape...
Mary Tork Roth, Fatma Ozcan, Laura M. Haas
WISE
2005
Springer
13 years 8 months ago
Identifying Value Mappings for Data Integration: An Unsupervised Approach
The Web is a distributed network of information sources where the individual sources are autonomously created and maintained. Consequently, syntactic and semantic heterogeneity of ...
Jaewoo Kang, Dongwon Lee, Prasenjit Mitra
ICASSP
2009
IEEE
13 years 9 months ago
Sparse decomposition of mixed audio signals by basis pursuit with autoregressive models
We develop a framework to detect when certain sounds are present in a mixed audio signal. We focus on the regime where out of a large number of possible sounds, a small but unknow...
Youngmin Cho, Lawrence K. Saul
ICML
2009
IEEE
14 years 3 months ago
Learning dictionaries of stable autoregressive models for audio scene analysis
In this paper, we explore an application of basis pursuit to audio scene analysis. The goal of our work is to detect when certain sounds are present in a mixed audio signal. We fo...
Youngmin Cho, Lawrence K. Saul