Hweijen Lin

Prof. Hweijen Lin


Research Focus & Metrics

Academic Career Length

19Years (2008-Present)

(Calculated once Scilit publication data is synced: current year − year of first publication + 1)

Representative Publications

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1 January 2019 in Journal of Image and Graphics
Verified
Journal Article
Closed access
HLHweijen Lin
Hweijen Lin
YTYoshimasa Tokuyama
Yoshimasa Tokuyama
ZLZi Jun Lin
Zi Jun Lin

1 July 2011
Verified
Conference Paper
Closed access
SPSheng-Yu Peng
Sheng-Yu Peng
KWKanoksak Wattanachote
Kanoksak Wattanachote
HLHweijen Lin
Hweijen Lin
Kuan-Ching LiKuan-Ching Li
Kuan-Ching Li
Nowadays people are used to get daily information from Internet such as weather condition, news and financial information, among others. Though, in order to receiving these daily information, users have to repeat same mouse and keyboard actions, inducing waste of time and inconvenience. In order to improve these situations, we propose in this paper a system design that can easily get daily information without mouse and keyboard actions and make people's life more convenient and easier. In this proposed system, we have implemented an approach that provides daily information retrieved from Internet, where users can operate this system with his hands' movements. Once selected the function by hand gestures, the system will report action information to users by synthetized speech. In a typical family, since each member has different requirements and needs, the system utilizes face recognition to identify each user, bringing up personalized services to each user. In this paper, we use PCA method to recognize faces as also hand gestures, and then a number of hand gestures and system controls are acquired and stored into this system. Results from a set of experiments indicate that the proposed system in a family environment with small-scale of face recognition show good performance as also good result in hand gesture recognition.

1 January 2024 in AIMS Mathematics
Verified
Journal Article
Open access
PDF file
HLHsiau-Wen Lin
Hsiau-Wen Lin
YTYihjia Tsai
Yihjia Tsai
HLHweijen Lin
Hweijen Lin
CYChen-Hsiang Yu
Chen-Hsiang Yu
MLMeng-Hsing Liu
Meng-Hsing Liu
General learning algorithms trained on a specific dataset often have difficulty generalizing effectively across different domains. In traditional pattern recognition, a classifier is typically trained on one dataset and then tested on another, assuming both datasets follow the same distribution. This assumption poses difficulty for the solution to be applied in real-world scenarios. The challenge of making a robust generalization from data originated from diverse sources is called the domain adaptation problem. Many studies have suggested solutions for mapping samples from two domains into a shared feature space and aligning their distributions. To achieve distribution alignment, minimizing the maximum mean discrepancy (MMD) between the feature distributions of the two domains has been proven effective. However, this alignment of features between two domains ignores the essential class-wise alignment, which is crucial for adaptation. To address the issue, this study introduced a discriminative, class-wise deep kernel-based MMD technique for unsupervised domain adaptation. Experimental findings demonstrated that the proposed approach not only aligns the data distribution of each class in both source and target domains, but it also enhances the adaptation outcomes.

1 February 2021 in The Imaging Science Journal
Verified
Journal Article
Closed access
CTChing-Ting Tu
Ching-Ting Tu
HLHweijen Lin
Hweijen Lin
YTYihjia Tsia
Yihjia Tsia
This paper aims to extend the capability of Cycle-Consistent Adversarial Network (CycleGAN) by equipping it with a conditional constraint and extend it into a multi-style image transfer system that can transfer images among more than two image domains. The conditional constraint is given in the form of the target style feature map instead of a one-hot vector, and has shown to provide better transfer results. The proposed system offers greater flexibility for users to choose the style for image transfer. Experimental results show that such an architecture is not only feasible but also yields good results. The proposed architecture can be extended to other transformation applications, such as facial expressions transfer, face aging, and synthesis of various features.

10 January 2025 in Mathematics
Verified
Journal Article
Open access
PDF file
HLHsiau-Wen Lin
Hsiau-Wen Lin
Trang Thi HoTrang Thi Ho
Trang Thi Ho
CTChing-Ting Tu
Ching-Ting Tu
HLHweijen Lin
Hweijen Lin
CYChen-Hsiang Yu
Chen-Hsiang Yu
This paper introduces a novel unsupervised domain adaptation (UDA) method, MeTa Discriminative Class-Wise MMD (MCWMMD), which combines meta-learning with a Class-Wise Maximum Mean Discrepancy (MMD) approach to enhance domain adaptation. Traditional MMD methods align overall distributions but struggle with class-wise alignment, reducing feature distinguishability. MCWMMD incorporates a meta-module to dynamically learn a deep kernel for MMD, improving alignment accuracy and model adaptability. This meta-learning technique enhances the model’s ability to generalize across tasks by ensuring domain-invariant and class-discriminative feature representations. Despite the complexity of the method, including the need for meta-module training, it presents a significant advancement in UDA. Future work will explore scalability in diverse real-world scenarios and further optimize the meta-learning framework. MCWMMD offers a promising solution to the persistent challenge of domain adaptation, paving the way for more adaptable and generalizable deep learning models.

8 April 2019 in International Journal of Pattern Recognition and Artificial Intelligence
Verified
Journal Article
Closed access
PDF file
FYFu Wen Yang
Fu Wen Yang
HLHweijen Lin
Hweijen Lin
SYShwu-Huey Yen
Shwu-Huey Yen
CWChun-Hui Wang
Chun-Hui Wang