Search Results for author: Quan Bai

Found 20 papers, 1 papers with code

Balancing Information Perception with Yin-Yang: Agent-Based Information Neutrality Model for Recommendation Systems

no code implementations7 Apr 2024 Mengyan Wang, Yuxuan Hu, Shiqing Wu, Weihua Li, Quan Bai, Verica Rupar

While preference-based recommendation algorithms effectively enhance user engagement by recommending personalized content, they often result in the creation of ``filter bubbles''.

Recommendation Systems

Detecting misinformation through Framing Theory: the Frame Element-based Model

no code implementations19 Feb 2024 Guan Wang, Rebecca Frederick, Jinglong Duan, William Wong, Verica Rupar, Weihua Li, Quan Bai

In this paper, we delve into the rapidly evolving challenge of misinformation detection, with a specific focus on the nuanced manipulation of narrative frames - an under-explored area within the AI community.

Misinformation

BHEISR: Nudging from Bias to Balance -- Promoting Belief Harmony by Eliminating Ideological Segregation in Knowledge-based Recommendations

no code implementations6 Jul 2023 Mengyan Wang, Yuxuan Hu, Zihan Yuan, Chenting Jiang, Weihua Li, Shiqing Wu, Quan Bai

This approach endeavors to transcend the constraints of the filter bubble, enrich recommendation diversity, and strike a belief balance among users while also catering to user preferences and system-specific business requirements.

Recommendation Systems

AaKOS: Aspect-adaptive Knowledge-based Opinion Summarization

no code implementations26 May 2023 Guan Wang, Weihua Li, Edmund M-K. Lai, Quan Bai

In this paper, we propose an Aspect-adaptive Knowledge-based Opinion Summarization model for product reviews, which effectively captures the adaptive nature required for opinion summarization.

Opinion Summarization Text Generation

Soft Prompt Guided Joint Learning for Cross-Domain Sentiment Analysis

no code implementations1 Mar 2023 Jingli Shi, Weihua Li, Quan Bai, Yi Yang, Jianhua Jiang

Aspect term extraction is a fundamental task in fine-grained sentiment analysis, which aims at detecting customer's opinion targets from reviews on product or service.

Sentiment Analysis Term Extraction +1

Rapid-Motion-Track: Markerless Tracking of Fast Human Motion with Deeper Learning

no code implementations18 Jan 2023 Renjie Li, Chun Yu Lao, Rebecca St. George, Katherine Lawler, Saurabh Garg, Son N. Tran, Quan Bai, Jane Alty

RMT and a range of DLC models were applied to the video data with tapping frequencies up to 8Hz to extract movement features.

A Light-weight, Effective and Efficient Model for Label Aggregation in Crowdsourcing

no code implementations19 Nov 2022 Yi Yang, Zhong-Qiu Zhao, Quan Bai, Qing Liu, Weihua Li

Due to the dynamic nature, the proposed algorithms can also estimate true labels online without re-visiting historical data.

Hybrid CNN -Interpreter: Interpret local and global contexts for CNN-based Models

no code implementations31 Oct 2022 Wenli Yang, Guan Huang, Renjie Li, Jiahao Yu, Yanyu Chen, Quan Bai, Beyong Kang

Convolutional neural network (CNN) models have seen advanced improvements in performance in various domains, but lack of interpretability is a major barrier to assurance and regulation during operation for acceptance and deployment of AI-assisted applications.

Feature Correlation

Swinv2-Imagen: Hierarchical Vision Transformer Diffusion Models for Text-to-Image Generation

no code implementations18 Oct 2022 Ruijun Li, Weihua Li, Yi Yang, Hanyu Wei, Jianhua Jiang, Quan Bai

Recently, diffusion models have been proven to perform remarkably well in text-to-image synthesis tasks in a number of studies, immediately presenting new study opportunities for image generation.

Language Modelling Text-to-Image Generation

A Comprehensive Review on Deep Supervision: Theories and Applications

no code implementations6 Jul 2022 Renjie Li, Xinyi Wang, Guan Huang, Wenli Yang, Kaining Zhang, Xiaotong Gu, Son N. Tran, Saurabh Garg, Jane Alty, Quan Bai

Deep supervision, or known as 'intermediate supervision' or 'auxiliary supervision', is to add supervision at hidden layers of a neural network.

GAC: A Deep Reinforcement Learning Model Toward User Incentivization in Unknown Social Networks

1 code implementation17 Mar 2022 Shiqing Wu, Weihua Li, Quan Bai

The experimental results indicate that GAC can learn and apply effective incentive allocation policies in unknown social networks and outperform existing incentive allocation approaches.

reinforcement-learning Reinforcement Learning (RL)

Hand gesture detection in tests performed by older adults

no code implementations27 Oct 2021 Guan Huang, Son N. Tran, Quan Bai, Jane Alty

We have implemented a hand gesture detector to detect the gestures in the hand movement tests and our detection mAP is 0. 782 which is better than the state-of-the-art.

Identifying Influential Users in Unknown Social Networks for Adaptive Incentive Allocation Under Budget Restriction

no code implementations13 Jul 2021 Shiqing Wu, Weihua Li, Hao Shen, Quan Bai

To tackle the aforementioned challenges, in this paper, we propose a novel algorithm for exploring influential users in unknown networks, which can estimate the influential relationships among users based on their historical behaviors and without knowing the topology of the network.

Recommendation Systems

Graph-based Joint Pandemic Concern and Relation Extraction on Twitter

no code implementations18 Jun 2021 Jingli Shi, Weihua Li, Sira Yongchareon, Yi Yang, Quan Bai

However, detecting concerns in time from massive information in social media turns out to be a big challenge, especially when sufficient manually labeled data is in the absence of public health emergencies, e. g., COVID-19.

Management Relation +1

ABEM: An Adaptive Agent-based Evolutionary Approach for Mining Influencers in Online Social Networks

no code implementations14 Apr 2021 Weihua Li, Yuxuan Hu, Shiqing Wu, Quan Bai, Edmund Lai

A key step in influence maximization in online social networks is the identification of a small number of users, known as influencers, who are able to spread influence quickly and widely to other users.

An Evoked Potential-Guided Deep Learning Brain Representation For Visual Classification

no code implementations27 Jun 2020 Xianglin Zheng, Zehong Cao, Quan Bai

In this study, we proposed a deep learning framework guided by the visual evoked potentials, called the Event-Related Potential (ERP)-Long short-term memory (LSTM) framework, extracted by EEG signals for visual classification.

Classification EEG +3

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