Chuan-Yu Chang

Prof. Chuan-Yu Chang

National Yunlin University of Science and Technology, Taiwan
orcid

Research Focus & Metrics

Academic Career Length

23Years (2004-Present)

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

Representative Publications

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18 September 2020 in IEEE Access
Verified
Journal Article
Open access
CCChing-Ju Chen
Ching-Ju Chen
YHYa-Yu Huang
Ya-Yu Huang
YLYuan-Shuo Li
Yuan-Shuo Li
Chuan-Yu ChangChuan-Yu Chang
Chuan-Yu Chang
YHYueh-Min Huang
Yueh-Min Huang
In this study, artificial intelligence and image recognition technologies are combined with environ-mental sensors and the Internet of Things (IoT) for pest identification. Real-time agricultural meteorology and pest identification systems on mobile applications are evaluated based on intelligent pest identification and environ-mental IoT data. We combined the current mature AIoT technology and deep learning and applied it to smart agriculture. We used deep learning YOLOv3 for image recognition to obtain the location of Tessaratoma papillosa and analyze the environmental information from weather stations through Long Short-Term Memory (LSTM) to predict the occurrence of pests. The experimental results showed that the pest identification accuracy reached 90%. Precise positioning can effectively reduce the amount of pesticides used and reduce pesticide damage to the soil. The current research provides the location of the pest and the extent of the pests to farmers can accurately use pesticide application at a precise time and place and thus reduce the agricultural workforce required for timely pest control, thus achieving the goal of smart agriculture. The proposed system notifies farmers of the presence of different pests before they start multiplying in large numbers. It improves overall agricultural economic value by providing appropriate pest control methods that decrease crop losses and reduce the environmental damage caused by the excessive usage of pesticides.

4 October 2021 in Biosensors
Verified
Journal Article
Open access
PDF file
SMShwetank Mamidwar
Shwetank Mamidwar
ARAkshith Rajkumar
Akshith Rajkumar
ZSZainab Shakruwala
Zainab Shakruwala
Utkarsh ChadhaUtkarsh Chadha
Utkarsh Chadha
KSKathiravan Srinivasan
Kathiravan Srinivasan
Chuan-Yu ChangChuan-Yu Chang
Chuan-Yu Chang
IoT has played an essential role in many industries over the last few decades. Recent advancements in the healthcare industry have made it possible to make healthcare accessible to more people and improve their overall health. The next step in healthcare is to integrate it with IoT-assisted wearable sensor systems seamlessly. This review rigorously discusses the various IoT architectures, different methods of data processing, transfer, and computing paradigms. It compiles various communication technologies and the devices commonly used in IoT-assisted wearable sensor systems and deals with its various applications in healthcare and their advantages to the world. A comparative analysis of all the wearable technology in healthcare is also discussed with tabulation of various research and technology. This review also analyses all the problems commonly faced in IoT-assisted wearable sensor systems and the specific issues that need to be tackled to optimize these systems in healthcare and describes the various future implementations that can be made to the architecture and the technology to improve the healthcare industry.

26 April 2021 in IEEE Transactions on Neural Networks and Learning Systems
Verified
Journal Article
Closed access
Chia-Hung YehChia-Hung Yeh
Chia-Hung Yeh
CLChu-Han Lin
Chu-Han Lin
LKLi-Wei Kang
Li-Wei Kang
CHChih-Hsiang Huang
Chih-Hsiang Huang
MLMin-Hui Lin
Min-Hui Lin
Chua-Chin WangChua-Chin Wang
Chua-Chin Wang
Underwater image processing has been shown to exhibit significant potential for exploring underwater environments. It has been applied to a wide variety of fields, such as underwater terrain scanning and autonomous underwater vehicles (AUVs)-driven applications, such as image-based underwater object detection. However, underwater images often suffer from degeneration due to attenuation, color distortion, and noise from artificial lighting sources as well as the effects of possibly low-end optical imaging devices. Thus, object detection performance would be degraded accordingly. To tackle this problem, in this article, a lightweight deep underwater object detection network is proposed. The key is to present a deep model for jointly learning color conversion and object detection for underwater images. The image color conversion module aims at transforming color images to the corresponding grayscale images to solve the problem of underwater color absorption to enhance the object detection performance with lower computational complexity. The presented experimental results with our implementation on the Raspberry pi platform have justified the effectiveness of the proposed lightweight jointly learning model for underwater object detection compared with the state-of-the-art approaches.

1 February 2021 in IEEE Access
Verified
Journal Article
Open access
CCChing-Ju Chen
Ching-Ju Chen
YHYa-Yu Huang
Ya-Yu Huang
YLYuan-Shuo Li
Yuan-Shuo Li
YCYing-Cheng Chen
Ying-Cheng Chen
Chuan-Yu ChangChuan-Yu Chang
Chuan-Yu Chang
YHYueh-Min Huang
Yueh-Min Huang
Tessaratoma papillosa (Drury) first invaded Taiwan in 2009. Every year, T. papillosa causes severe damage to the longan crops. Novel applications for edge intelligence are applied in this study to establish an intelligent pest recognition system to manage this pest problem. We used a detecting drone to photograph the pest and employed a Tiny-YOLOv3 neural network model built on an embedded system NVIDIA Jetson TX2 to recognize T. papillosa in the orchard to determine the position of the pests in real-time. The pests' positions are then used to plan the optimal pesticide spraying route for the agricultural drone. Apart from planning the optimized spraying of pesticide for the spraying drone, the TX2 embedded platform also transmits the position and generation of pests to the cloud to record and analyze the growth of longan with a computer or mobile device. This study enables farmers to understand the pest distribution and take appropriate precautions in real-time. The agricultural drone sprays pesticides only where needed, which reduces pesticide use, decreases damage to the environment, and increases crop yield.

23 July 2021 in Computational and Mathematical Methods in Medicine
Verified
Journal Article
Open access
PDF file
SRS. Ramaneswaran
S. Ramaneswaran
KSKathiravan Srinivasan
Kathiravan Srinivasan
P.M.Durai Raj VincentP.M.Durai Raj Vincent
P.M.Durai Raj Vincent
Chuan-Yu ChangChuan-Yu Chang
Chuan-Yu Chang
Acute lymphoblastic leukemia (ALL) is the most common type of pediatric malignancy which accounts for 25% of all pediatric cancers. It is a life-threatening disease which if left untreated can cause death within a few weeks. Many computerized methods have been proposed for the detection of ALL from microscopic cell images. In this paper, we propose a hybrid Inception v3 XGBoost model for the classification of acute lymphoblastic leukemia (ALL) from microscopic white blood cell images. In the proposed model, Inception v3 acts as the image feature extractor and the XGBoost model acts as the classification head. Experiments indicate that the proposed model performs better than the other methods identified in literature. The proposed hybrid model achieves a weighted F1 score of 0.986. Through experiments, we demonstrate that using an XGBoost classification head instead of a softmax classification head improves classification performance for this dataset for several different CNN backbones (feature extractors). We also visualize the attention map of the features extracted by Inception v3 to interpret the features learnt by the proposed model.

12 December 2019 in Applied Sciences
Verified
Journal Article
Open access
PDF file
PCPRIYA CHAKRISWARAN
PRIYA CHAKRISWARAN
P.M.Durai Raj VincentP.M.Durai Raj Vincent
P.M.Durai Raj Vincent
KSKathiravan Srinivasan
Kathiravan Srinivasan
Vishal SharmaVishal Sharma
Vishal Sharma
Chuan-Yu ChangChuan-Yu Chang
Chuan-Yu Chang
Daniel GutierrezDaniel Gutierrez
Daniel Gutierrez
The essential use of natural language processing is to analyze the sentiment of the author via the context. This sentiment analysis (SA) is said to determine the exactness of the underlying emotion in the context. It has been used in several subject areas such as stock market prediction, social media data on product reviews, psychology, judiciary, forecasting, disease prediction, agriculture, etc. Many researchers have worked on these areas and have produced significant results. These outcomes are beneficial in their respective fields, as they help to understand the overall summary in a short time. Furthermore, SA helps in understanding actual feedback shared across different platforms such as Amazon, TripAdvisor, etc. The main objective of this thorough survey was to analyze some of the essential studies done so far and to provide an overview of SA models in the area of emotion AI-driven SA. In addition, this paper offers a review of ontology-based SA and lexicon-based SA along with machine learning models that are used to analyze the sentiment of the given context. Furthermore, this work also discusses different neural network-based approaches for analyzing sentiment. Finally, these different approaches were also analyzed with sample data collected from Twitter. Among the four approaches considered in each domain, the aspect-based ontology method produced 83% accuracy among the ontology-based SAs, the term frequency approach produced 85% accuracy in the lexicon-based analysis, and the support vector machine-based approach achieved 90% accuracy among the other machine learning-based approaches.