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» Evaluating Ontology Cleaning
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WWW
2007
ACM
15 years 10 months ago
C-ODO: an OWL Meta-model for Collaborative Ontology Design
The design and maintenance of ontologies is a complex social collaborative activity, and this is true especially for semantic-web ontologies. On the one hand, such activity calls ...
Aldo Gangemi, Jos Lehmann, Valentina Presutti, Mal...
KCAP
2005
ACM
15 years 3 months ago
An Approach to Ontology Mapping Negotiation
Ontology mapping negotiation aims to achieve consensus among real-world entities about the process of transforming information between different models (ontologies). This paper de...
Nuno Silva, Paulo Maio, João Rocha
ICDE
2005
IEEE
108views Database» more  ICDE 2005»
15 years 3 months ago
Robust Identification of Fuzzy Duplicates
Detecting and eliminating fuzzy duplicates is a critical data cleaning task that is required by many applications. Fuzzy duplicates are multiple seemingly distinct tuples which re...
Surajit Chaudhuri, Venkatesh Ganti, Rajeev Motwani
ICALP
2005
Springer
15 years 3 months ago
Tight Lower Bounds for Query Processing on Streaming and External Memory Data
We study a clean machine model for external memory and stream processing. We show that the number of scans of the external data induces a strict hierarchy (as long as work space is...
Martin Grohe, Christoph Koch, Nicole Schweikardt
ICASSP
2011
IEEE
14 years 1 months ago
Analysis-synthesis based speech enhancement with improved spectrum envelope estimation by tracking speech dynamics
This paper presents a Kalman tracking approach to re-estimate clean spectral amplitude from noisy speech spectrum for re-synthesis based speech enhancement. The motivation of usin...
Ruofei Chen, Cheung-Fat Chan