Search Results for author: Liangli Zhen

Found 13 papers, 5 papers with code

Low-Resolution Self-Attention for Semantic Segmentation

no code implementations8 Oct 2023 Yu-Huan Wu, Shi-Chen Zhang, Yun Liu, Le Zhang, Xin Zhan, Daquan Zhou, Jiashi Feng, Ming-Ming Cheng, Liangli Zhen

Semantic segmentation tasks naturally require high-resolution information for pixel-wise segmentation and global context information for class prediction.

Segmentation Semantic Segmentation

Efficient Sharpness-aware Minimization for Improved Training of Neural Networks

1 code implementation ICLR 2022 Jiawei Du, Hanshu Yan, Jiashi Feng, Joey Tianyi Zhou, Liangli Zhen, Rick Siow Mong Goh, Vincent Y. F. Tan

Recently, the relation between the sharpness of the loss landscape and the generalization error has been established by Foret et al. (2020), in which the Sharpness Aware Minimizer (SAM) was proposed to mitigate the degradation of the generalization.

Automated Deepfake Detection

no code implementations20 Jun 2021 Ping Liu, Yuewei Lin, Yang He, Yunchao Wei, Liangli Zhen, Joey Tianyi Zhou, Rick Siow Mong Goh, Jingen Liu

In this paper, we propose to utilize Automated Machine Learning to adaptively search a neural architecture for deepfake detection.

BIG-bench Machine Learning DeepFake Detection +1

Parallel Attention Network with Sequence Matching for Video Grounding

no code implementations Findings (ACL) 2021 Hao Zhang, Aixin Sun, Wei Jing, Liangli Zhen, Joey Tianyi Zhou, Rick Siow Mong Goh

In this work, we propose a Parallel Attention Network with Sequence matching (SeqPAN) to address the challenges in this task: multi-modal representation learning, and target moment boundary prediction.

Representation Learning Video Grounding

Video Corpus Moment Retrieval with Contrastive Learning

1 code implementation13 May 2021 Hao Zhang, Aixin Sun, Wei Jing, Guoshun Nan, Liangli Zhen, Joey Tianyi Zhou, Rick Siow Mong Goh

We adopt the first approach and introduce two contrastive learning objectives to refine video encoder and text encoder to learn video and text representations separately but with better alignment for VCMR.

Contrastive Learning Moment Retrieval +2

Deep Supervised Cross-Modal Retrieval

1 code implementation CVPR 2019 Liangli Zhen, Peng Hu, Xu Wang, Dezhong Peng

Furthermore, it simultaneously minimises the modality invariance loss and uses a weight sharing strategy to eliminate the cross-modal discrepancy of multimedia data in the common representation space to learn modality-invariant features.

Cross-Modal Retrieval Retrieval

Multiobjective Test Problems with Degenerate Pareto Fronts

no code implementations7 Jun 2018 Liangli Zhen, Miqing Li, Ran Cheng, Dezhong Peng, Xin Yao

The redundancy of some objectives can lead to the multiobjective problem having a degenerate Pareto front, i. e., the dimension of the Pareto front of the $m$-objective problem be less than (m-1).

Multiobjective Optimization

Kernel Truncated Regression Representation for Robust Subspace Clustering

no code implementations15 May 2017 Liangli Zhen, Dezhong Peng, Wei Wang, Xin Yao

Our method has the advantages of a closed-form solution and the capacity of clustering data points that lie on nonlinear subspaces.

Clustering regression

How to Read Many-Objective Solution Sets in Parallel Coordinates

no code implementations30 Apr 2017 Miqing Li, Liangli Zhen, Xin Yao

In this paper, we make some observations of the parallel coordinates plot, in terms of comparing the quality of solution sets, understanding the shape and distribution of a solution set, and reflecting the relation between objectives.

Evolutionary Algorithms

Locally linear representation for image clustering

no code implementations24 Apr 2013 Liangli Zhen, Zhang Yi, Xi Peng, Dezhong Peng

There are two popular schemes to construct a similarity graph, i. e., pairwise distance based scheme and linear representation based scheme.

Clustering Image Clustering

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