125 citations
9 papers
Singular hyperbolicity of generic three dimensional vector fields
Manseob Lee
In the paper, we show that for a generic vector field on a closed three dimensional manifold , any isolated transitive set of is singular hyperbolic. It is a parti…
Drivers Drowsiness Detection using Condition-Adaptive Representation Learning Framework
Jongmin Yu, Sangwoo Park, Sangwook Lee +1
We propose a condition-adaptive representation learning framework for the driver drowsiness detection based on 3D-deep convolutional neural network. The proposed framework consists…
Unpaired Speech Enhancement by Acoustic and Adversarial Supervision for Speech Recognition
Geonmin Kim, Hwaran Lee, Bo-Kyeong Kim +2
Many speech enhancement methods try to learn the relationship between noisy and clean speech, obtained using an acoustic room simulator. We point out several limitations of enhance…
Kinematic N-expansive flows
Manseob Lee, Jumi Oh, Junmi Park
In light of the rich results of expansiveness in the dynamics of diffeomorphisms, it is natural to consider another notions of expansiveness such as countably-expansive, measure ex…
Deep CNNs along the Time Axis with Intermap Pooling for Robustness to Spectral Variations
Hwaran Lee, Geonmin Kim, Ho-Gyeong Kim +2
Convolutional neural networks (CNNs) with convolutional and pooling operations along the frequency axis have been proposed to attain invariance to frequency shifts of features. How…
Shadowing, expansiveness and specification for C1-conservative systems
M. Bessa, M. Lee, X. Wen
We prove that a C1-generic volume-preserving dynamical system (diffeomorphism or flow) has the shadowing property or is expansive or has the weak specification property if and only…