Yanchun Liang

Dr. Yanchun Liang

Key Laboratory for Symbol Computation and Knowledge Engineering of National Education Ministry, College of Computer Science and Technology, Jilin University, Changchun 130012, China
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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9 August 2023 in Entropy
Verified
Journal Article
Open access
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XWXianhe Wang
Xianhe Wang
YLYing Li
Ying Li
QQQian Qiao
Qian Qiao
ATAdriano Tavares
Adriano Tavares
YLYanchun Liang
Yanchun Liang
In the context of escalating global environmental concerns, the importance of preserving water resources and upholding ecological equilibrium has become increasingly apparent. As a result, the monitoring and prediction of water quality have emerged as vital tasks in achieving these objectives. However, ensuring the accuracy and dependability of water quality prediction has proven to be a challenging endeavor. To address this issue, this study proposes a comprehensive weight-based approach that combines entropy weighting with the Pearson correlation coefficient to select crucial features in water quality prediction. This approach effectively considers both feature correlation and information content, avoiding excessive reliance on a single criterion for feature selection. Through the utilization of this comprehensive approach, a comprehensive evaluation of the contribution and importance of the features was achieved, thereby minimizing subjective bias and uncertainty. By striking a balance among various factors, features with stronger correlation and greater information content can be selected, leading to improved accuracy and robustness in the feature-selection process. Furthermore, this study explored several machine learning models for water quality prediction, including Support Vector Machines (SVMs), Multilayer Perceptron (MLP), Random Forest (RF), XGBoost, and Long Short-Term Memory (LSTM). SVM exhibited commendable performance in predicting Dissolved Oxygen (DO), showcasing excellent generalization capabilities and high prediction accuracy. MLP demonstrated its strength in nonlinear modeling and performed well in predicting multiple water quality parameters. Conversely, the RF and XGBoost models exhibited relatively inferior performance in water quality prediction. In contrast, the LSTM model, a recurrent neural network specialized in processing time series data, demonstrated exceptional abilities in water quality prediction. It effectively captured the dynamic patterns present in time series data, offering stable and accurate predictions for various water quality parameters.

6 October 2020 in IEEE Transactions on Knowledge and Data Engineering
Verified
Journal Article
Open access
RGRenchu Guan
Renchu Guan
HZHao Zhang
Hao Zhang
YLYanchun Liang
Yanchun Liang
FGFausto Giunchiglia
Fausto Giunchiglia
LHLan Huang
Lan Huang
XFXiaoyue Feng
Xiaoyue Feng

24 February 2025 in Scientific Reports
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Journal Article
Open access
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XFXiaoyang Fu
Xiaoyang Fu
RLRongbin Lin
Rongbin Lin
WDWei Du
Wei Du
ATAdriano Tavares
Adriano Tavares
YLYanchun Liang
Yanchun Liang
Lung disease is an infection that causes chronic inflammation of the human lung cells, which is one of the major causes of death around the world. Thoracic X-ray medical image is a well-known cheap screening approach used for lung disease detection. Deep learning networks, which are used to identify disease features in X-rays medical images, diagnosing a variety of lung diseases, are playing an increasingly important role in assisting clinical diagnosis. This paper proposes an explainable transformer with a hybrid network structure (LungMaxViT) combining CNN initial stage block with SE block to improve feature recognition for predicting Chest X-ray images for multiple lung disease classification. We contrast four classical pre-training models (ResNet50, MobileNetV2, ViT and MaxViT) through transfer learning based on two public datasets. The LungMaxVit, based on maxvit pre-trained with ImageNet 1K datasets, is a hybrid transformer with fine-tuning hyperparameters on the both X-ray datasets. The LungMaxVit outperforms all the four mentioned models, achieving a classification accuracy of 96.8%, AUC scores of 98.3%, and F1 scores of 96.7% on the COVID-19 dataset, while AUC scores of 93.2% and F1 scores of 70.7% on the Chest X-ray 14 dataset. The LungMaxVit distinguishes by its superior performance in terms of Accuracy, AUC and F1-score compared with other hybrids Networks. Several enhancement techniques, such as CLAHE, flipping and denoising, are employed to improve the classification performance of our study. The Grad-CAM visual technique is leveraged to represent the heat map of disease detection, explaining the consistency among clinical doctors and neural network models in the treatment of lung disease from Chest X-ray. The LungMaxVit shows the robust results and generalization in detecting multiple lung lesions and COVID-19 on Chest X-ray images.

25 November 2015 in BMC Genomics
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Journal Article
Open access
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JWJuexin Wang
Juexin Wang
TJTrupti Joshi
Trupti Joshi
BVBabu Valliyodan
Babu Valliyodan
HSHaiying Shi
Haiying Shi
YLYanchun Liang
Yanchun Liang
DXDong Xu
Dong Xu
A central question for disease studies and crop improvements is how genetics variants drive phenotypes. Genome Wide Association Study (GWAS) provides a powerful tool for characterizing the genotype-phenotype relationships in complex traits and diseases. Epistasis (gene-gene interaction), including high-order interaction among more than two genes, often plays important roles in complex traits and diseases, but current GWAS analysis usually just focuses on additive effects of single nucleotide polymorphisms (SNPs). The lack of effective computational modelling of high-order functional interactions often leads to significant under-utilization of GWAS data. We have developed a novel Bayesian computational method with a Markov Chain Monte Carlo (MCMC) search, and implemented the method as a Bayesian High-order Interaction Toolkit (BHIT) for detecting epistatic interactions among SNPs. BHIT first builds a Bayesian model on both continuous data and discrete data, which is capable of detecting high-order interactions in SNPs related to case—control or quantitative phenotypes. We also developed a pipeline that enables users to apply BHIT on different species in different use cases. Using both simulation data and soybean nutritional seed composition studies on oil content and protein content, BHIT effectively detected some high-order interactions associated with phenotypes, and it outperformed a number of other available tools. BHIT is freely available for academic users at http://digbio.missouri.edu/BHIT/ .

24 May 2019 in Journal of Medical Internet Research
Verified
Journal Article
Open access
XFXiaoyue Feng
Xiaoyue Feng
HZHao Zhang
Hao Zhang
YRYijie Ren
Yijie Ren
PSPenghui Shang
Penghui Shang
YZYi Zhu
Yi Zhu
DXDong Xu
Dong Xu
Journal of Medical Internet Research - International Scientific Journal for Medical Research, Information and Communication on the Internet #Preprint #PeerReviewMe: Warning: This is a unreviewed preprint. Readers are warned that the document has not been peer-reviewed by expert/patient reviewers or an academic editor, may contain misleading claims, and is likely to undergo changes before final publication, if accepted, or may have been rejected/withdrawn. Readers with interest and expertise are encouraged to sign up as peer-reviewer, if the paper is within an open peer-review period. Please cite this preprint only for review purposes or for grant applications and CVs (if you are the author). Background: It is of great importance for researchers to publish research results in high-quality journals. However, it is often challenging to choose a most suitable publication venue given the exponential growth of journals and conferences. Although recommender systems have achieved success in promoting movies, music and products, very few studies have explored recommendation of publication venues, especially for biomedical research. No recommender system exists that can specifically recommend journals in PubMed, the largest collection of biomedical literature. Objective: We proposed a publication recommender system, named Pubmender, to suggest suitable PubMed journals based on a paper’s Methods: In Pubmender, pretrained word2vec is first used to construct the start-up feature space. Then, a deep convolutional neural network is constructed to achieve the high-level representation of abstracts, and a fully connected softmax model is adopted to recommend the best journals. Results: We collected 880,165 papers from 1,130 journals in PubMed Central (PMC) and extracted abstracts from these papers as an empirical dataset. We compared different recommendation models such as Cavnar-Trenkleon on the Microsoft Academic Search engine (MAS), a collaborative-filtering-based recommender system on the digital library of the Association for Computing Machinery (ACM) and CiteSeer. We found the accuracy of our system for the top-10 recommendtations to be 87.0%, 22.9% and 196.0% higher than those of MAS, ACM, and CiteSeer, respectively. In addition, we compared our system with Journal Finder and Journal Suggester, which are tools of Elsevier and Springer to help authors find suitable journals in their series. The results revealed that the accuracy of our system was 329% higher than Journal Finder and 406% higher than Journal Suggester for the top-10 recommendations. Our web service is freely available at http://www.keaml.cn:8081/. Conclusions: Our deep learning based recommender system can suggest an appropriate journal list to help biomedical scientists and clinicians to choose suitable venues for their papers.

7 May 2019 in Genomics, Proteomics & Bioinformatics
Verified
Journal Article
Open access
HSHuiyan Sun
Huiyan Sun
LCLiang Chen
Liang Chen
SCSha Cao
Sha Cao
YLYanchun Liang
Yanchun Liang
YXYing Xu
Ying Xu
It has been observed that both cancer tissue cells and normal proliferating cells (NPCs) have the Warburg effect. Our goal here is to demonstrate that they do this for different reasons. To accomplish this, we have analyzed the transcriptomic data of over 7000 cancer and control tissues of 14 cancer types in TCGA and data of five NPC types in GEO. Our analyses reveal that NPCs accumulate large quantities of ATPs produced by the respiration process before starting the Warburg effect, to raise the intracellular pH from ∼6.8 to ∼7.2 and to prepare for cell division energetically. Once cell cycle starts, the cells start to rely on glycolysis for ATP generation followed by ATP hydrolysis and lactic acid release, to maintain the elevated intracellular pH as needed by cell division since together the three processes are pH neutral. The cells go back to the normal respiration-based ATP production once the cell division phase ends. In comparison, cancer cells have reached their intracellular pH at ∼7.4 from top down as multiple acid-loading transporters are up-regulated and most acid-extruding ones except for lactic acid exporters are repressed. Cancer cells use continuous glycolysis for ATP production as way to acidify the intracellular space since the lactic acid secretion is decoupled from glycolysis-based ATP generation and is pH balanced by increased expressions of acid-loading transporters. Co-expression analyses suggest that lactic acid secretion is regulated by external, non-pH related signals. Overall, our data strongly suggest that the two cell types have the Warburg effect for very different reasons.