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ICASSP
2010
IEEE
13 years 3 months ago
Unsupervised knowledge acquisition for Extracting Named Entities from speech
This paper presents a Named Entity Recognition (NER) method dedicated to process speech transcriptions. The main principle behind this method is to collect in an unsupervised way ...
Frédéric Béchet, Eric Charton
ICASSP
2011
IEEE
13 years 10 days ago
OFO estimation methods with wide acquisition ranges for MB-OFDM-based UWB systems
In MB-OFDM-based UWB systems, the different CFOs for different bands can be obtained by only estimating the OFO. To achieve OFO estimators with wide estimation ranges, we benefit...
Lin Bai, Qinye Yin
ISCAS
2007
IEEE
126views Hardware» more  ISCAS 2007»
14 years 2 months ago
Theory and Implementation of an Analog-to-Information Converter using Random Demodulation
— The new theory of compressive sensing enables direct analog-to-information conversion of compressible signals at subNyquist acquisition rates. We develop new theory, algorithms...
Jason N. Laska, Sami Kirolos, Marco F. Duarte, Tam...
RTCSA
2005
IEEE
14 years 2 months ago
Citron: A Context Information Acquisition Framework for Personal Devices
This paper describes a context information acquisition framework for a personal device that equips a variety of sensors. The framework captures context information about a user an...
Tetsuo Yamabe, Ayako Takagi, Tatsuo Nakajima
FPGA
2008
ACM
308views FPGA» more  FPGA 2008»
13 years 10 months ago
Fpga-based data acquisition system for a positron emission tomography (PET) scanner
: Modern Field Programmable Gate Arrays (FPGAs) are capable of performing complex discrete signal processing algorithms with clock rates of above 100MHz. This combined with FPGAs l...
Michael Haselman, Robert Miyaoka, Thomas K. Lewell...