Human-Cloud Systems Laboraotry, CUHK-Shenzhen

Our Work “SemNFT: A Semantically Enhanced Decentralized Middleware for Digital Asset Immortality” Is Accepted By ACM MM’24

2024-08-252024-08-26 admin

Non-Fungible Tokens (NFTs) have emerged as a pivotal digital asset, offering authenticated ownership of unique digital content. Despite it has gained remarkable traction, yet face pressing storage and verification challenges stemming from blockchain’s permanent data costs. Existing off-chain or centralized storage solutions, while being alternatives, also introduce notable security vulnerabilities. We present SemNFT, an innovative decentralized framework integrated with blockchain oracle middleware services, addressing these persistent NFT dilemmas.

Our Work “Web3 Metaverse: State-of-the-Art and Vision” Is Accepted By ACM Transactions on Multimedia Computing, Communications, and Applications (TOMM)

2023-10-272024-09-10 admin

The metaverse, as a rapidly evolving socio-technical phenomenon, exhibits significant potential across diverse domains by leveraging Web3 (a.k.a. Web 3.0) technologies such as blockchain, smart contracts, and non-fungible tokens (NFTs). This survey aims to provide a comprehensive overview of the Web3 metaverse from a human-centered perspective. We systematically review the metaverse’s industrial (data from Dow Jones Factiva database) and academic (data from Google Scholar website) developments over the past 30 years, highlighting the balanced contributions from its core components: Web3, immersive convergence, and crowd intelligence communities.

Our Work “MetaCast: A Self-Driven Metaverse Announcer Architecture Based on Quality of Experience Evaluation Model” Is Accepted By ACM MM’ 23

2023-09-172023-09-17 admin

We propose a three-stage architecture for metaverse announcers, which is designed to identify events, position cameras, and blend between shots. Based on the architecture, we introduce a Metaverse Announcer User Experience (MAUE) model to identify the factors affecting the users’ Quality of Experience (QoE) from a human-centered perspective. In addition, we implement MetaCast, a practical self-driven metaverse announcer in a university campus metaverse prototype, to conduct user studies for MAUE model. The experimental results have effectively achieved satisfactory announcer settings that align with the preferences of most users, encompassing parameters such as video transition rate, repetition rate, importance threshold value, and image composition.

Our Metaverse Paper presented in ACM MM’21 has reached 1000 citations

2021-08-202024-08-25 admin

According to Google Scholar [link], our paper “Metaverse for Social Good: A University Campus Prototype,” presented in the Brave New Ideas (BNI) track of the 29th ACM International Conference on Multimedia (ACM MM ’21), has reached 1,000 citations. Additionally, statistics from the ACM Digital Library indicate that this paper has been downloaded over 10,000 times, […]

Themis received 5th Golden Gyro Innovative Blockchain Application Award

2020-12-122022-12-26 admin

We design and implement Themis, a hybrid blockchain-based resource trading system, to combine the advantages of both public and consortium blockchains.