Search Results for author: Ziyi Kou

Found 15 papers, 5 papers with code

How to Make a BLT Sandwich? Learning to Reason towards Understanding Web Instructional Videos

no code implementations2 Dec 2018 Shaojie Wang, Wentian Zhao, Ziyi Kou, Chenliang Xu

Furthermore, we study multiple modalities including description and transcripts for the purpose of boosting video understanding.

Logical Reasoning Question Answering +1

Weakly Supervised Localization Using Background Images

no code implementations9 Sep 2019 Ziyi Kou, Wentian Zhao, Guofeng Cui, Shaojie Wang

Weakly Supervised Object Localization (WSOL) methodsusually rely on fully convolutional networks in order to ob-tain class activation maps(CAMs) of targeted labels.

Object Weakly-Supervised Object Localization

Improve CAM with Auto-adapted Segmentation and Co-supervised Augmentation

no code implementations17 Nov 2019 Ziyi Kou, Guofeng Cui, Shaojie Wang, Wentian Zhao, Chenliang Xu

In this paper, we propose a confidence segmentation (ConfSeg) module that builds confidence score for each pixel in CAM without introducing additional hyper-parameters.

Object Weakly-Supervised Object Localization

What comprises a good talking-head video generation?: A Survey and Benchmark

1 code implementation7 May 2020 Lele Chen, Guofeng Cui, Ziyi Kou, Haitian Zheng, Chenliang Xu

In this work, we present a carefully-designed benchmark for evaluating talking-head video generation with standardized dataset pre-processing strategies.

Talking Head Generation Video Generation

STDI-Net: Spatial-Temporal Network with Dynamic Interval Mapping for Bike Sharing Demand Prediction

no code implementations7 Jun 2020 Weiguo Pian, Yingbo Wu, Ziyi Kou

As an economical and healthy mode of shared transportation, Bike Sharing System (BSS) develops quickly in many big cities.

Spatial-Temporal Dynamic Graph Attention Networks for Ride-hailing Demand Prediction

no code implementations7 Jun 2020 Weiguo Pian, Yingbo Wu, Xiangmou Qu, Junpeng Cai, Ziyi Kou

However, existing GCN-based ride-hailing demand prediction methods only assign the same importance to different neighbor regions, and maintain a fixed graph structure with static spatial relationships throughout the timeline when extracting the irregular non-Euclidean spatial correlations.

Graph Attention Traffic Prediction

Talking-head Generation with Rhythmic Head Motion

1 code implementation16 Jul 2020 Lele Chen, Guofeng Cui, Celong Liu, Zhong Li, Ziyi Kou, Yi Xu, Chenliang Xu

When people deliver a speech, they naturally move heads, and this rhythmic head motion conveys prosodic information.

Talking Head Generation

Efficient Localness Transformer for Smart Sensor-Based Energy Disaggregation

no code implementations29 Mar 2022 Zhenrui Yue, Huimin Zeng, Ziyi Kou, Lanyu Shang, Dong Wang

Modern smart sensor-based energy management systems leverage non-intrusive load monitoring (NILM) to predict and optimize appliance load distribution in real-time.

energy management Inductive Bias +2

Contrastive Domain Adaptation for Early Misinformation Detection: A Case Study on COVID-19

2 code implementations20 Aug 2022 Zhenrui Yue, Huimin Zeng, Ziyi Kou, Lanyu Shang, Dong Wang

However, early misinformation often demonstrates both conditional and label shifts against existing misinformation data (e. g., class imbalance in COVID-19 datasets), rendering such methods less effective for detecting early misinformation.

Domain Adaptation Misinformation

On Attacking Out-Domain Uncertainty Estimation in Deep Neural Networks

no code implementations3 Oct 2022 Huimin Zeng, Zhenrui Yue, Yang Zhang, Ziyi Kou, Lanyu Shang, Dong Wang

In many applications with real-world consequences, it is crucial to develop reliable uncertainty estimation for the predictions made by the AI decision systems.

Adversarial Attack

Unsupervised Domain Adaptation for COVID-19 Information Service with Contrastive Adversarial Domain Mixup

no code implementations6 Oct 2022 Huimin Zeng, Zhenrui Yue, Ziyi Kou, Lanyu Shang, Yang Zhang, Dong Wang

Moreover, we leverage the power of domain adversarial examples to establish an intermediate domain mixup, where the latent representations of the input text from both domains could be mixed during the training process.

Contrastive Learning Misinformation +1

UGMAE: A Unified Framework for Graph Masked Autoencoders

no code implementations12 Feb 2024 Yijun Tian, Chuxu Zhang, Ziyi Kou, Zheyuan Liu, Xiangliang Zhang, Nitesh V. Chawla

In light of this, we propose UGMAE, a unified framework for graph masked autoencoders to address these issues from the perspectives of adaptivity, integrity, complementarity, and consistency.

Self-Supervised Learning

Monocular 3D Object Detection via Feature Domain Adaptation

no code implementations ECCV 2020 Lele Chen, Guofeng Cui, Celong Liu, Zhong Li, Ziyi Kou, Yi Xu, Chenliang Xu

Monocular 3D object detection is a challenging task due to unreliable depth, resulting in a distinct performance gap between monocular and LiDAR-based approaches.

Domain Adaptation Foreground Segmentation +3

Cannot find the paper you are looking for? You can Submit a new open access paper.