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CLEAR
2007
Springer
179views Biometrics» more  CLEAR 2007»
14 years 5 months ago
HMM-Based Acoustic Event Detection with AdaBoost Feature Selection
Given the spectral difference between speech and acoustic events, we propose using Kullback-Leibler distance to quantify the discriminant capability of all speech feature componen...
Xi Zhou, Xiaodan Zhuang, Ming Liu, Hao Tang, Mark ...
CLEAR
2007
Springer
142views Biometrics» more  CLEAR 2007»
14 years 5 months ago
An HMM Based System for Acoustic Event Detection
Abstract. This paper deals with the CLEAR 2007 evaluation on the detection of acoustic events which happen during seminars or meetings The implemented system consists in a front-en...
Christian Zieger
ICMCS
2006
IEEE
153views Multimedia» more  ICMCS 2006»
14 years 5 months ago
Learning-Based Interactive Video Retrieval System
This paper presents an interactive video event retrieval system based on improved adaboost learning. This system consists of three main steps. Firstly, a long video sequence is pa...
Chi-Jiunn Wu, Hui-Chi Zeng, Szu-Hao Huang, Shang-H...
NIPS
2003
14 years 16 days ago
Learning a Rare Event Detection Cascade by Direct Feature Selection
Face detection is a canonical example of a rare event detection problem, in which target patterns occur with much lower frequency than nontargets. Out of millions of face-sized wi...
Jianxin Wu, James M. Rehg, Matthew D. Mullin
ICML
2005
IEEE
14 years 12 months ago
Linear Asymmetric Classifier for cascade detectors
The detection of faces in images is fundamentally a rare event detection problem. Cascade classifiers provide an efficient computational solution, by leveraging the asymmetry in t...
Jianxin Wu, Matthew D. Mullin, James M. Rehg