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SIAMCO
2011
14 years 4 months ago
Admissible Strategies in Semimartingale Portfolio Selection
The choice of admissible trading strategies in mathematical modelling of financial markets is a delicate issue, going back to Harrison and Kreps [HK79]. In the context of optimal...
Sara Biagini, Ales Cerný
SIGIR
2008
ACM
14 years 9 months ago
Named entity normalization in user generated content
Named entity recognition is important for semantically oriented retrieval tasks, such as question answering, entity retrieval, biomedical retrieval, trend detection, and event and...
Valentin Jijkoun, Mahboob Alam Khalid, Maarten Mar...
MM
2009
ACM
125views Multimedia» more  MM 2009»
15 years 4 months ago
Unfolding speaker clustering potential: a biomimetic approach
Speaker clustering is the task of grouping a set of speech utterances into speaker-specific classes. The basic techniques for solving this task are similar to those used for spea...
Thilo Stadelmann, Bernd Freisleben
ICDE
2006
IEEE
143views Database» more  ICDE 2006»
15 years 4 months ago
Effectiveness Bounds for Non-Exhaustive Schema Matching Systems
Semantic validation of the effectiveness of a schema matching system is traditionally performed by comparing system-generated mappings with those of human evaluators. The human ef...
Marko Smiljanic, Maurice van Keulen, Willem Jonker
IMC
2005
ACM
15 years 3 months ago
Improving Sketch Reconstruction Accuracy Using Linear Least Squares Method
Sketch is a sublinear space data structure that allows one to approximately reconstruct the value associated with any given key in an input data stream. It is the basis for answer...
Gene Moo Lee, Huiya Liu, Young Yoon, Yin Zhang