Search Results for author: Pan Hui

Found 48 papers, 11 papers with code

Exploring the Use of Abusive Generative AI Models on Civitai

no code implementations16 Jul 2024 Yiluo Wei, Yiming Zhu, Pan Hui, Gareth Tyson

To explore this, we conduct the first comprehensive empirical study of an AIGC social platform, focusing on its use for generating abusive content.

Exploring the Capability of ChatGPT to Reproduce Human Labels for Social Computing Tasks (Extended Version)

no code implementations8 Jul 2024 Yiming Zhu, Peixian Zhang, Ehsan-Ul Haq, Pan Hui, Gareth Tyson

To evaluate ChatGPT's potential, we re-annotate seven datasets using ChatGPT, covering topics related to pressing social issues like COVID-19 misinformation, social bot deception, cyberbully, clickbait news, and the Russo-Ukrainian War.

Misinformation News Annotation

FedTSA: A Cluster-based Two-Stage Aggregation Method for Model-heterogeneous Federated Learning

no code implementations6 Jul 2024 Boyu Fan, Chenrui Wu, Xiang Su, Pan Hui

Despite extensive research into data heterogeneity in federated learning (FL), system heterogeneity remains a significant yet often overlooked challenge.

Federated Learning

From Pixels to Progress: Generating Road Network from Satellite Imagery for Socioeconomic Insights in Impoverished Areas

1 code implementation17 Jun 2024 Yanxin Xi, Yu Liu, Zhicheng Liu, Sasu Tarkoma, Pan Hui, Yong Li

The Sustainable Development Goals (SDGs) aim to resolve societal challenges, such as eradicating poverty and improving the lives of vulnerable populations in impoverished areas.

Decoder

OmniColor: A Global Camera Pose Optimization Approach of LiDAR-360Camera Fusion for Colorizing Point Clouds

1 code implementation6 Apr 2024 Bonan Liu, Guoyang Zhao, Jianhao Jiao, Guang Cai, Chengyang Li, Handi Yin, Yuyang Wang, Ming Liu, Pan Hui

A Colored point cloud, as a simple and efficient 3D representation, has many advantages in various fields, including robotic navigation and scene reconstruction.

3D Reconstruction

Large Language Model-driven Meta-structure Discovery in Heterogeneous Information Network

1 code implementation18 Feb 2024 Lin Chen, Fengli Xu, Nian Li, Zhenyu Han, Meng Wang, Yong Li, Pan Hui

ReStruct uses a grammar translator to encode the meta-structures into natural language sentences, and leverages the reasoning power of LLMs to evaluate their semantic feasibility.

Language Modelling Large Language Model +1

A Survey on Generative AI and LLM for Video Generation, Understanding, and Streaming

no code implementations30 Jan 2024 Pengyuan Zhou, Lin Wang, Zhi Liu, Yanbin Hao, Pan Hui, Sasu Tarkoma, Jussi Kangasharju

This paper offers an insightful examination of how currently top-trending AI technologies, i. e., generative artificial intelligence (Generative AI) and large language models (LLMs), are reshaping the field of video technology, including video generation, understanding, and streaming.

Video Generation Video Understanding

APT-Pipe: A Prompt-Tuning Tool for Social Data Annotation using ChatGPT

1 code implementation24 Jan 2024 Yiming Zhu, Zhizhuo Yin, Gareth Tyson, Ehsan-Ul Haq, Lik-Hang Lee, Pan Hui

To address this, there has been a flurry of research into prompt tuning -- techniques and guidelines that attempt to improve the quality of prompts.

text-classification Text Classification

Dream360: Diverse and Immersive Outdoor Virtual Scene Creation via Transformer-Based 360 Image Outpainting

no code implementations19 Jan 2024 Hao Ai, Zidong Cao, Haonan Lu, Chen Chen, Jian Ma, Pengyuan Zhou, Tae-Kyun Kim, Pan Hui, Lin Wang

To this end, we propose a transformer-based 360 image outpainting framework called Dream360, which can generate diverse, high-fidelity, and high-resolution panoramas from user-selected viewports, considering the spherical properties of 360 images.

Image Outpainting

Efficient Task Offloading Algorithm for Digital Twin in Edge/Cloud Computing Environment

no code implementations12 Jul 2023 Ziru Zhang, Xuling Zhang, Guangzhi Zhu, Yuyang Wang, Pan Hui

In the era of Internet of Things (IoT), Digital Twin (DT) is envisioned to empower various areas as a bridge between physical objects and the digital world.

Cloud Computing Decision Making +1

Lightweight Modeling of User Context Combining Physical and Virtual Sensor Data

no code implementations28 Jun 2023 Mattia Giovanni Campana, Dimitris Chatzopoulos, Franca Delmastro, Pan Hui

The framework has been used by 3 voluntary users for two weeks, generating a dataset with more than 36K samples and 1331 features.

Dimensionality Reduction

Attention-based QoE-aware Digital Twin Empowered Edge Computing for Immersive Virtual Reality

no code implementations15 May 2023 Jiadong Yu, Ahmad Alhilal, Tailin Zhou, Pan Hui, Danny H. K. Tsang

In this paper, we tackle this desynchronization using a continual RL framework that facilitates the resource allocation dynamically for MEC-enabled VR content streaming.

Continual Learning Edge-computing +2

Towards AI-Architecture Liberty: A Comprehensive Survey on Design and Generation of Virtual Architecture by Deep Learning

no code implementations30 Apr 2023 Anqi Wang, Jiahua Dong, Lik-Hang Lee, Jiachuan Shen, Pan Hui

3D shape generation techniques leveraging deep learning have garnered significant interest from both the computer vision and architectural design communities, promising to enrich the content in the virtual environment.

3D Shape Generation

Can ChatGPT Reproduce Human-Generated Labels? A Study of Social Computing Tasks

no code implementations20 Apr 2023 Yiming Zhu, Peixian Zhang, Ehsan-Ul Haq, Pan Hui, Gareth Tyson

We believe this work can open up new lines of analysis and act as a basis for future research into the exploitation of ChatGPT for human annotation tasks.

Sentiment Analysis Stance Detection

Dataset for predicting cybersickness from a virtual navigation task

no code implementations7 Feb 2023 Yuyang Wang, Ruichen Li, Jean-Rémy Chardonnet, Pan Hui

This work presents a dataset collected to predict cybersickness in virtual reality environments.

Bi-directional Digital Twin and Edge Computing in the Metaverse

no code implementations16 Nov 2022 Jiadong Yu, Ahmad Alhilal, Pan Hui, Danny H. K. Tsang

Multi-access edge computing (MEC) provides responsive services to the end users, ensuring an immersive and interactive Metaverse experience.

Continual Learning Edge-computing

Federated Split GANs

1 code implementation4 Jul 2022 Pranvera Kortoçi, Yilei Liang, Pengyuan Zhou, Lik-Hang Lee, Abbas Mehrabi, Pan Hui, Sasu Tarkoma, Jon Crowcroft

Mobile devices and the immense amount and variety of data they generate are key enablers of machine learning (ML)-based applications.

Attribute Privacy Preserving

HideNseek: Federated Lottery Ticket via Server-side Pruning and Sign Supermask

no code implementations9 Jun 2022 Anish K. Vallapuram, Pengyuan Zhou, Young D. Kwon, Lik Hang Lee, Hengwei Xu, Pan Hui

Consequently, the training requires high computation cost and a long time to converge while the model performance does not pay off.

Federated Learning Model Compression +1

Twitter Dataset for 2022 Russo-Ukrainian Crisis

1 code implementation6 Mar 2022 Ehsan-Ul Haq, Gareth Tyson, Lik-Hang Lee, Tristan Braud, Pan Hui

Such information sharing campaigns can range from spreading factual information to propaganda and misinformation.

Misinformation

Towards User-Centered Metrics for Trustworthy AI in Immersive Cyberspace

no code implementations22 Feb 2022 Pengyuan Zhou, Benjamin Finley, Lik-Hang Lee, Yong Liao, Haiyong Xie, Pan Hui

AI plays a key role in current cyberspace and future immersive ecosystems that pinpoint user experiences.

Fairness

When Creators Meet the Metaverse: A Survey on Computational Arts

no code implementations26 Nov 2021 Lik-Hang Lee, Zijun Lin, Rui Hu, Zhengya Gong, Abhishek Kumar, Tangyao Li, Sijia Li, Pan Hui

The metaverse, enormous virtual-physical cyberspace, has brought unprecedented opportunities for artists to blend every corner of our physical surroundings with digital creativity.

Exploring System Performance of Continual Learning for Mobile and Embedded Sensing Applications

no code implementations25 Oct 2021 Young D. Kwon, Jagmohan Chauhan, Abhishek Kumar, Pan Hui, Cecilia Mascolo

Our findings suggest that replay with exemplars-based schemes such as iCaRL has the best performance trade-offs, even in complex scenarios, at the expense of some storage space (few MBs) for training examples (1% to 5%).

Continual Learning Incremental Learning +1

Mobile Augmented Reality: User Interfaces, Frameworks, and Intelligence

no code implementations16 Jun 2021 Jacky Cao, Kit-Yung Lam, Lik-Hang Lee, Xiaoli Liu, Pan Hui, Xiang Su

Mobile Augmented Reality (MAR) integrates computer-generated virtual objects with physical environments for mobile devices.

Loss Tolerant Federated Learning

1 code implementation8 May 2021 Pengyuan Zhou, Pei Fang, Pan Hui

Federated learning has attracted attention in recent years for collaboratively training data on distributed devices with privacy-preservation.

Fairness Federated Learning

Genetic Meta-Structure Search for Recommendation on Heterogeneous Information Network

1 code implementation21 Feb 2021 Zhenyu Han, Fengli Xu, Jinghan Shi, Yu Shang, Haorui Ma, Pan Hui, Yong Li

To address these challenges, we propose Genetic Meta-Structure Search (GEMS) to automatically optimize meta-structure designs for recommendation on HINs.

Recommendation Systems

Characterizing Student Engagement Moods for Dropout Prediction in Question Pool Websites

no code implementations31 Jan 2021 Reza Hadi Mogavi, Xiaojuan Ma, Pan Hui

Problem-Based Learning (PBL) is a popular approach to instruction that supports students to get hands-on training by solving problems.

Hybrid Machine Learning Math

Automorphic Equivalence-aware Graph Neural Network

1 code implementation NeurIPS 2021 Fengli Xu, Quanming Yao, Pan Hui, Yong Li

Distinguishing the automorphic equivalence of nodes in a graph plays an essential role in many scientific domains, e. g., computational biologist and social network analysis.

Graph Neural Network Representation Learning

DRLE: Decentralized Reinforcement Learning at the Edge for Traffic Light Control in the IoV

1 code implementation3 Sep 2020 Pengyuan Zhou, Xianfu Chen, Zhi Liu, Tristan Braud, Pan Hui, Jussi Kangasharju

To this end, we propose a Decentralized Reinforcement Learning at the Edge for traffic light control in the IoV (DRLE).

Edge-computing Management +3

Urban Anomaly Analytics: Description, Detection, and Prediction

no code implementations25 Apr 2020 Mingyang Zhang, Tong Li, Yue Yu, Yong Li, Pan Hui, Yu Zheng

Urban anomalies may result in loss of life or property if not handled properly.

Edge Intelligence: Architectures, Challenges, and Applications

no code implementations26 Mar 2020 Dianlei Xu, Tong Li, Yong Li, Xiang Su, Sasu Tarkoma, Tao Jiang, Jon Crowcroft, Pan Hui

Edge intelligence refers to a set of connected systems and devices for data collection, caching, processing, and analysis in locations close to where data is captured based on artificial intelligence.

Marketplace for AI Models

no code implementations3 Mar 2020 Abhishek Kumar, Benjamin Finley, Tristan Braud, Sasu Tarkoma, Pan Hui

Artificial intelligence shows promise for solving many practical societal problems in areas such as healthcare and transportation.

UrbanRhythm: Revealing Urban Dynamics Hidden in Mobility Data

no code implementations3 Nov 2019 Sirui Song, Tong Xia, Depeng Jin, Pan Hui, Yong Li

In this paper, to reveal urban dynamics, we propose a novel system UrbanRhythm to reveal the urban dynamics hidden in human mobility data.

Clustering

DeepHealth: Review and challenges of artificial intelligence in health informatics

no code implementations1 Sep 2019 Gloria Hyunjung Kwak, Pan Hui

The demand for it in health informatics is also increasing, and we can expect to see the potential benefits of its applications in healthcare.

FaRM: Fair Reward Mechanism for Information Aggregation in Spontaneous Localized Settings (Extended Version)

no code implementations10 Jun 2019 Moin Hussain Moti, Dimitris Chatzopoulos, Pan Hui, Sujit Gujar

FaRM uses \textit{(i)} a \emph{report strength score} to remove the risk of random pairing with dishonest reporters, \textit{(ii)} a \emph{consistency score} to measure an agent's history of accurate reports and distinguish valuable reports, \textit{(iii)} a \emph{reliability score} to estimate the probability of an agent to collude with nearby agents and prevents agents from getting swayed, and \textit{(iv)} a \emph{location robustness score} to filter agents who try to participate without being present in the considered setting.

Fairness

Inflo: News Categorization and Keyphrase Extraction for Implementation in an Aggregation System

no code implementations10 Dec 2018 Pranav A, Nick Sukiennik, Pan Hui

The work herein describes a system for automatic news category and keyphrase labeling, presented in the context of our motivation to improve the speed at which a user can find relevant and interesting content within an aggregation platform.

Keyphrase Extraction

Where's YOUR focus: Personalized Attention

no code implementations22 Feb 2018 Sikun Lin, Pan Hui

In this work, we present the novel idea of personalized attention prediction and develop Personalized Attention Network (PANet), a convolutional network that predicts saliency in images with personal preference.

Saliency Prediction

Cardea: Context-Aware Visual Privacy Protection from Pervasive Cameras

no code implementations4 Oct 2016 Jiayu Shu, Rui Zheng, Pan Hui

The growing popularity of mobile and wearable devices with built-in cameras, the bright prospect of camera related applications such as augmented reality and life-logging system, the increased ease of taking and sharing photos, and advances in computer vision techniques have greatly facilitated people's lives in many aspects, but have also inevitably raised people's concerns about visual privacy at the same time.

Semantic homophily in online communication: evidence from Twitter

no code implementations27 Jun 2016 Sanja Šćepanović, Igor Mishkovski, Bruno Gonçalves, Nguyen Trung Hieu, Pan Hui

An important question to researchers and in practice can be tackled, as we present here: understanding the exact mechanisms of interplay between these tendencies and the underlying social network structure.

Sociology

Motion and audio analysis in mobile devices for remote monitoring of physical activities and user authentication

no code implementations5 Nov 2013 Hamed Ketabdar, Jalaluddin Qureshi, Pan Hui

In this article we propose the use of accelerometer embedded by default in smartphone as a cost-effective, reliable and efficient way to provide remote physical activity monitoring for the elderly and people requiring healthcare service.

Wisdom of the Crowd: Incorporating Social Influence in Recommendation Models

no code implementations3 Aug 2012 Shang Shang, Pan Hui, Sanjeev R. Kulkarni, Paul W. Cuff

In this paper, we propose two recommendation models, for individuals and for groups respectively, based on social contagion and social influence network theory.

Collaborative Filtering Decision Making +1

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