Article
Engineering, Multidisciplinary
Daoming She, Minping Jia
Summary: This study introduces a RUL prediction method based on Bidirectional Gated Recurrent Unit (BiGRU), which calculates the confidence interval of RUL using the Bootstrap method. This approach reduces maintenance costs and has significant implications for production and manufacturing.
Article
Engineering, Electrical & Electronic
Hongxing Cui, Danling Tang, Huizeng Liu, Yi Sui, Xiaowei Gu
Summary: The study proposes a new method based on random forest to predict sea surface height anomaly induced by tropical cyclones. The method utilizes the characteristics of the cyclones and prestorm oceanic parameters as input to accurately predict the anomaly up to 30 days after the cyclone passes through. The proposed method achieves high prediction accuracy in the Western North Pacific region.
IEEE JOURNAL OF SELECTED TOPICS IN APPLIED EARTH OBSERVATIONS AND REMOTE SENSING
(2023)
Article
Green & Sustainable Science & Technology
Amin Mahdavi-Meymand, Wojciech Sulisz
Summary: In this study, nested artificial neural networks were developed and applied to predict significant wave height at twenty selected locations of the North Sea, using wind speed and wind direction as input parameters. The results showed that the derived models were 18.39% more accurate than linear regression, and the nested artificial neural network could increase the accuracy of traditional models by up to 34%. Among all applied models, the nested artificial neural network developed based on the integration of particle swarm optimization algorithm and adaptive neuro-fuzzy inference system provided the most accurate prediction of wave heights, with RMSE = 0.525m and R2 = 0.84. The high accuracy of the results suggests that the application of nested artificial neural networks may be recommended for modeling wave parameters and other complex problems, if computational time is not critical for users.
Article
Meteorology & Atmospheric Sciences
Jing -yi Zhuo, Zhe-min Tan
Summary: This study uses deep learning algorithms to estimate the size of tropical cyclones in the western North Pacific based on satellite data. The algorithms were used to reconstruct a historical dataset, revealing significant expanding trends in the outer circulations of these cyclones and a weak contracting trend in the inner-core size.
JOURNAL OF CLIMATE
(2023)
Article
Meteorology & Atmospheric Sciences
Chanwoo Song, Sungsu Park, Siyun Kim, Juwon Kim
Summary: In order to understand the intensification process of tropical cyclones, researchers analyzed the relationship between tracks and ERA5 data. They found that strong tropical cyclones consume more convective available potential energy (CAPE) and bring more CAPE from the equator, sustaining their intensity. Factors such as sea surface temperature (SST), atmospheric stability, wind shear, and moisture convergence also play a role in intensification. Using machine learning, the researchers identified a combination of environmental variables that can accurately predict the intensity of cyclones.
JOURNAL OF CLIMATE
(2023)
Article
Meteorology & Atmospheric Sciences
Tao Song, Ying Li, Fan Meng, Pengfei Xie, Danya Xu
Summary: This paper proposes a novel deep learning model for tropical cyclone track prediction. The model can excavate the historical track information in a deeper and more accurate way, and performs well in mid- to long-term track forecasting.
JOURNAL OF APPLIED METEOROLOGY AND CLIMATOLOGY
(2022)
Article
Engineering, Civil
Triambak Sharma, Jatin Bedi, Ashima Anand, Ashutosh Aggarwal
Summary: Automation in ship navigation and course planning is hindered by oceanic conditions. This study proposes a hybrid approach involving Variable Mode Decomposition and Bidirectional Long Short-Term Memory model (VMD - BiLSTM) to improve the efficiency and reliability of the ship's autopilot system by accurately estimating wave height.
IEEE TRANSACTIONS ON INTELLIGENT TRANSPORTATION SYSTEMS
(2023)
Article
Environmental Sciences
Rui Chen, Ralf Toumi, Xinjie Shi, Xiang Wang, Yao Duan, Weimin Zhang
Summary: Tropical cyclones are dangerous weather events, and accurate monitoring and forecasting can provide important early warning for reducing loss. However, studying tropical cyclone intensity is still challenging. This paper proposes an adaptive learning approach to correct the intensity of tropical cyclones.
Article
Meteorology & Atmospheric Sciences
Pingping Dong, Jie Lian, Hui Yu, Jianguo Pan, Yuping Zhang, Guomin Chen
Summary: In this study, an encoding-to-forecasting model with ConvLSTM and SAN-EFSModel is proposed to predict tropical cyclone tracks. The proposed method shows better prediction accuracy and can fully extract long-term spatiotemporal features.
WEATHER AND FORECASTING
(2022)
Article
Meteorology & Atmospheric Sciences
Hang Xu, Huan Wu
Summary: Novel tsunami prediction models based on deep learning technique were compared with numerical models and observation data. The study considered different types of tsunami prediction and examined the reliability and accuracy under different input-output ratios. The results showed that the proposed models outperformed the traditional numerical model in prediction.
Article
Ecology
Maria Uriarte, Chengliang Tang, Douglas C. Morton, Jess K. Zimmerman, Tian Zheng
Summary: Projected increases in hurricane intensity under a warming climate will have profound effects on forest ecosystems. This study used a machine learning framework to examine the effects of hurricanes and environmental factors on the canopy height and density of the wind-resistant palm species Prestoea acuminate in El Yunque National Forest.
ECOLOGY AND EVOLUTION
(2023)
Article
Multidisciplinary Sciences
Ji-Woo Kwon, Won-Du Chang, Young Jun Yang
Summary: This research introduces a deep learning method using a Convolutional Neural Network (CNN) based on the VGGNet to estimate ocean wave height. The model is trained on a dataset comprising buoy wave heights and radar images, and data imbalances are addressed through stratified random sampling. The study presents a deep learning regression model that extracts features from radar images to accurately predict wave height values.
Article
Thermodynamics
Leiming Suo, Tian Peng, Shihao Song, Chu Zhang, Yuhan Wang, Yongyan Fu, Muhammad Shahzad Nazir
Summary: This study aims to establish a hybrid wind speed prediction model based on Time Varying Filtering based Empirical Mode Decomposition (TVFEMD), Fuzzy Entropy (FE), Partial Autocorrelation Function (PACF), improved Chimp Optimization Algorithm (IChOA) and Bi-directional Gated Recurrent Unit (BiGRU). The experimental results show that TVFEMD and PACF can improve the prediction accuracy of the model, and IChOA is feasible to optimize the parameters of BiGRU and improve the prediction performance.
Article
Environmental Sciences
Peng Hao, Shuang Li, Yu Gao
Summary: In this study, the predictive performance of significant wave height (SWH) using recurrent neural network (RNN), long short-term memory network (LSTM), and gated recurrent unit network (GRU) is comprehensively analyzed by considering different input lengths, prediction lengths, and model complexity. The results show that the input length and prediction length have an impact on the SWH prediction, but longer input length and longer prediction length do not necessarily lead to better prediction performance. Moreover, the number of layers in the model does not always determine the prediction performance.
FRONTIERS IN MARINE SCIENCE
(2023)
Article
Environmental Sciences
Alejandro Jaramillo, Christian Dominguez, Graciela Raga, Arturo I. Quintanar
Summary: The study shows that the combined effects of QBO and ENSO on tropical cyclone activity modulate deep convection by adjusting tropopause height, leading to either enhancement or inhibition of tropical cyclone activity and intensity in different regions. Further comparative studies using long record data at high vertical resolution are needed to fully understand the interaction between QBO and ENSO in the lower tropical stratosphere and upper tropical troposphere.
Article
Biotechnology & Applied Microbiology
Xue Li, Peifu Han, Gan Wang, Wenqi Chen, Shuang Wang, Tao Song
Summary: In this paper, a PPI prediction method SDNN-PPI based on self-attention and deep learning is proposed. Satisfactory results are obtained on various datasets, and the method not only explores the mechanism of protein-protein interaction but also provides new ideas for drug design and disease prevention.
Article
Biotechnology & Applied Microbiology
Wenqi Chen, Shuang Wang, Tao Song, Xue Li, Peifu Han, Changnan Gao
Summary: In this study, a novel sequence-based computational approach called DCSE was proposed to predict potential protein-protein interactions (PPIs). The method utilized NLP-based encoding and feature extraction using multi-layer neural networks. Comparison with other models demonstrated the superior performance of the proposed method across all evaluation criteria.
Article
Biochemical Research Methods
Jianmin Wang, Yanyi Chu, Jiashun Mao, Hyeon-Nae Jeon, Haiyan Jin, Amir Zeb, Yuil Jang, Kwang-Hwi Cho, Tao Song, Kyoung Tai No
Summary: This study constructs a dataset for protein-protein interaction (PPI) targeted drug-likeness and proposes a deep molecular generative framework to generate novel drug-like molecules based on the features of seed compounds. The results show that the generated molecules have better PPI-targeted drug-likeness and drug-likeness, and the model performs comparably to other state-of-the-art molecule generation models.
BRIEFINGS IN BIOINFORMATICS
(2022)
Article
Biochemical Research Methods
Xue Li, Peifu Han, Wenqi Chen, Changnan Gao, Shuang Wang, Tao Song, Muyuan Niu, Alfonso Rodriguez-Paton
Summary: This study proposes a protein-protein interaction (PPI) prediction model called multi-scale architecture residual network for PPIs (MARPPI) that utilizes dual-channel and multi-feature methods. The model leverages Res2vec to obtain residue association information and uses various descriptors to capture amino acid composition and order information, physicochemical properties, and information entropy. MARPPI achieves high accuracy rates ranging from 91.80% to 99.01% on different datasets, outperforming other advanced methods. The results also demonstrate the model's ability to detect hidden interactions and predict cross-species interactions.
BRIEFINGS IN BIOINFORMATICS
(2023)
Article
Biology
Xun Wang, Lulu Wang, Shuang Wang, Yongqi Ren, Wenqi Chen, Xue Li, Peifu Han, Tao Song
Summary: Molecular toxicity prediction is crucial for drug discovery and human health. Existing machine learning models for toxicity prediction do not fully utilize the 3D information of molecules, which can influence their toxicity. In this study, we propose QuantumTox, the first application of quantum chemistry in drug molecule toxicity prediction. Our model extracts quantum chemical information as 3D features and uses ensemble learning methods to improve accuracy and generalization. Experimental results demonstrate consistent outperformance compared to baseline models, even on small datasets.
COMPUTERS IN BIOLOGY AND MEDICINE
(2023)
Article
Environmental Sciences
Fan Meng, Yichen Yao, Zhibin Wang, Shiqiu Peng, Danya Xu, Tao Song
Summary: This study proposes a machine learning approach for probabilistic forecasting of tropical cyclone intensity. Previous studies cannot directly characterize the uncertainty in TC forecasting and suffer from computational effort issues. This study introduces a new method of evaluating the forecast without this uncertainty through the forecast distribution. The model outperforms current operational models and provides reliable probabilistic forecasts critical for disaster warnings.
ENVIRONMENTAL RESEARCH LETTERS
(2023)
Article
Computer Science, Artificial Intelligence
Fan Meng, Kunlin Yang, Yichen Yao, Zhibin Wang, Tao Song
Summary: Tropical cyclones are extreme disasters with significant impact on human beings, and forecasting their intensity has been a challenging task. Deep learning-based intensity forecasting has shown potential to outperform traditional methods, but inherent uncertainty in weather forecasting needs to be quantified for decision-making and risk assessment. This study proposes an intelligent system, PTCIF, based on deep learning to quantify uncertainty using multimodal meteorological data, the first study to assess uncertainty of tropical cyclones using a deep learning approach. Probabilistic forecasts are made for the intensity of 6-24 hours, showing comparable performance to weather forecast centers in terms of deterministic forecasts. Reliable prediction intervals and probabilistic forecasts are obtained, which are crucial for disaster warning and expected to complement operational models.
INTERNATIONAL JOURNAL OF INTELLIGENT SYSTEMS
(2023)
Article
Biochemical Research Methods
Tao Song, Yongqi Ren, Shuang Wang, Peifu Han, Lulu Wang, Xue Li, Alfonso Rodriguez-Paton
Summary: Deep learning has greatly improved and changed the process of de novo molecular design. The proposed DNMG model utilizes a deep generative adversarial network combined with transfer learning to consider the 3D spatial information and physicochemical properties of molecules, generating valid and novel drug-like ligands. The computational results demonstrate that the molecules generated by DNMG have better binding ability and physicochemical properties for target proteins.
Article
Genetics & Heredity
Linfang Jiao, Yongqi Ren, Lulu Wang, Changnan Gao, Shuang Wang, Tao Song
Summary: Advancements in single-cell sequencing research have revolutionized our understanding of cellular heterogeneity and functional diversity. However, scRNA-seq data analysis remains a computational challenge due to the high dimensionality and sparsity of the data, as well as the time-consuming and subjective nature of manual cell type identification.
FRONTIERS IN GENETICS
(2023)
Article
Biochemistry & Molecular Biology
Linfang Jiao, Gan Wang, Huanhuan Dai, Xue Li, Shuang Wang, Tao Song
Summary: Single-cell transcriptomics is advancing our understanding of complex tissues and cells, with scRNA-seq holding great potential for cell composition identification. However, manual annotation is time-consuming and unreliable for scRNA-seq data analysis. This paper introduces scTransSort, a cell-type annotation method based on scRNA-seq data and Transformer concept, which reduces data sparsity and computational complexity for cell type identification.
Article
Environmental Sciences
Tao Song, Jiarong Wang, Jidong Huo, Wei Wei, Runsheng Han, Danya Xu, Fan Meng
Summary: This study aims to develop a new deep learning algorithm, EEMD-LSTM, to accurately predict the significant wave height (SWH) of deep and distant ocean. The results show that the EEMD-LSTM model outperforms other comparative models in short-term and medium- and long-term SWH predictions, with RMSEs of 0.0204, 0.0279, 0.0452, 0.0941, and 0.1949 for the future 1, 3, 6, 12, and 18 h, respectively. It can serve as a rapid SWH prediction system to ensure navigation safety and has great practical significance and application value.
FRONTIERS IN MARINE SCIENCE
(2023)
Review
Geosciences, Multidisciplinary
Tao Song, Cong Pang, Boyang Hou, Guangxu Xu, Junyu Xue, Handan Sun, Fan Meng
Summary: The utilization and exploitation of marine resources by humans have contributed to the growth of marine research. With advancing technology, artificial intelligence (AI) approaches are being applied to maritime research, complementing traditional marine forecasting models and observation techniques. This article explores the application of AI in ocean observation, phenomena identification, and element forecasting.
FRONTIERS IN EARTH SCIENCE
(2023)
Article
Biochemical Research Methods
Shudong Wang, Chuanru Ren, Yulin Zhang, Yunyin Li, Shanchen Pang, Tao Song
Summary: In this study, a novel predictive model called RPCA$\Gamma $NR is proposed, which utilizes a new robust PCA framework based on $\gamma $-norm and $l_{2,1}$-norm regularization and an augmented Lagrange multiplier method to optimize it, thereby deriving the association scores for SM-miRNA. Through extensive evaluation, RPCA$\Gamma $NR outperforms existing models in terms of accuracy, efficiency, and robustness, significantly streamlining the process of determining SM-miRNA associations.
BRIEFINGS IN BIOINFORMATICS
(2023)
Article
Biotechnology & Applied Microbiology
Su-Kui Jin, Li-Na Xu, Yu-Jia Leng, Ming-Qiu Zhang, Qing-Qing Yang, Shui-Lian Wang, Shu-Wen Jia, Tao Song, Ruo-An Wang, Tao Tao, Qiao-Quan Liu, Xiu-Ling Cai, Ji-Ping Gao
Summary: In this study, the researchers identified a NAC transcription factor, OsNAC24, that regulates starch synthesis in rice. Through analysis of osnac24 mutants, it was found that OsNAC24 regulates starch synthesis by modulating the mRNA and protein levels of OsGBSSI and OsSBEI. Additionally, OsNAC24 interacts with another NAC transcription factor, OsNAP, to coactivate the expression of target genes. These findings highlight the important role of the OsNAC24-OsNAP complex in fine-tuning starch synthesis in rice endosperm.
PLANT BIOTECHNOLOGY JOURNAL
(2023)
Article
Computer Science, Artificial Intelligence
Handan Sun, Tao Song, Ying Li, Kunlin Yang, Danya Xu, Fan Meng
Summary: This study proposes a hybrid model based on ensemble empirical mode decomposition and Convolutional long short-term memory network to solve the non-smoothness problem in sea surface wind speed prediction. Experimental findings show that this model has the best prediction effect, and this advantage becomes increasingly evident as time increases.
APPLIED INTELLIGENCE
(2023)
Article
Engineering, Marine
Alba Ricondo, Laura Cagigal, Beatriz Perez-Diaz, Fernando J. Mendez
Summary: This research presents a site-specific metamodel based on the SWASH numerical model simulations, which can predict coastal hydrodynamic variables in a fast and efficient manner. The metamodel uses downscaled and dimensionality reduced synthetic database to accurately reproduce wave setup, wave heights associated with different frequency bands, and wave runup. This method has great potential in coastal risk assessments, early warning systems, and climate change projections.
Article
Engineering, Marine
Xiao Yu, Wangjun Ren, Bukui Zhou, Li Chen, Xiangyun Xu, Genmao Ren
Summary: This study investigated and compared the compression responses and energy absorption capacities of coral sand and silica sand at a strain rate of approximately 1000 s-1. The results showed that coral sand had significantly higher energy absorption capacity than silica sand due to its higher compressibility. The study findings suggest that using poorly graded coral sand can improve its energy absorption capacity.
Article
Engineering, Marine
Jingxi Zhang, Junmin Mou, Linying Chen, Pengfei Chen, Mengxia Li
Summary: This paper proposes a cooperative control scheme for ship formation tracking based on Model Predictive Control. A predictive observer is designed to estimate the current motion states of the leader ship using delayed motion information. Comparative simulations demonstrate the effectiveness and robustness of the proposed controller.
Article
Engineering, Marine
Yu Yao, Danni Zhong, Qijia Shi, Ji Wu, Jiangxia Li
Summary: This study proposes a 2DH numerical model based on Boussinesq equations to investigate the impact of dredging reef-flat sand on wave characteristics and wave-driven current. The model is verified through wave flume experiments and wave basin experiments, and the influences of incident wave conditions and pit morphological features on wave characteristics are examined.
Article
Engineering, Marine
Jayanta Shounda, Krishnendu Barman, Koustuv Debnath
Summary: This study investigates the double-average turbulence characteristics of combined wave-current flow over a rough bed with different spacing arrangements. The results show that a spacing ratio of p/r=4 offers the highest resistance to the flow, and the double-average Reynolds stress decreases throughout the flow depth. The advection of momentum-flux of normal stress shows an increase at the outer layer and a decrease near the bed region after wave imposition. Maximum turbulence kinetic energy production and diffusion occur at different layers. The turbulence structure is strongly anisotropic at the bottom region and near the outer layer, with a decrease in anisotropy observed with an increase in roughness spacing.
Article
Engineering, Marine
Meng Zhang, Lianghui Sun, Yaoguo Xie
Summary: The research proposes a method for online identification of wave bending and torsional moment in hull structures. For structures without large openings, the method optimizes sensor positions and establishes a mathematical model to improve accuracy. For structures with large openings, a joint dual-section monitoring method is proposed to simultaneously identify bending and torsional moments in multiple key cross sections.
Article
Engineering, Marine
Longming Chen, Shutao Li, Yeqing Chen, Dong Guo, Wanli Wei, Qiushi Yan
Summary: This study investigated the dynamic response characteristics and damage modes of pile wharves subjected to underwater explosions. The results showed that the main damaged components of the pile wharf were the piles, and inclined piles had a higher probability of moderate or more significant damage compared to vertical piles. The study also suggested that replacing inclined piles with alternative optimized structures benefits the blast resistance of pile wharves.
Article
Engineering, Marine
I. -C Kim, G. Ducrozet, V. Leroy, F. Bonnefoy, Y. Perignon, S. Bourguignon
Summary: Previous research focused on the accuracy and efficiency of short-term wave fields in specific prediction zones, while we developed algorithms for continuous wave prediction based on the practical prediction zone and discussed important time factors and strategies to reduce computational costs.
Article
Engineering, Marine
Hang Xie, Xianglin Dai, Fang Liu, Xinyu Liu
Summary: This study investigates the load characteristics of a three-dimensional stern model with pitch angle through a drop test, and reveals complex characteristics of pressure distribution near the stern shaft. The study also shows that the vibration characteristics of the load are influenced by the drop height and pitch angle, with the drop height having a greater effect on the high-frequency components.
Article
Engineering, Marine
Hangyuan Zhang, Wanli Yang, Dewen Liu, Xiaokun Geng, Wangyu Dai, Yuzhi Zhang
Summary: The deep-water bridge is more vulnerable to earthquake damage than the bridge standing in air. The larger blocking ratio has a significant impact on the added mass coefficient, which requires further comprehensive study. The generation mechanism of block effect is analyzed using numerical simulation software ANSYS Fluent. The results show that the recirculation zone with focus reduces the pressure on the back surface of the cylinder, resulting in the peak value of in-line force not occurring synchronously with the peak value of acceleration. The change in position and intensity of the recirculation zone with focus, as well as the change in water flow around the cylinder surface, are identified as the generation mechanism of the block effect, which has a 10% influence on the hydrodynamic force. The changing rule of the added mass coefficient with blocking ratio is discussed in detail, and a modification approach to the current added mass coefficient calculation method is suggested. Physical experiments are conducted to validate the modification approach, and the results show that it is accurate and can be used in further study and real practice.
Article
Engineering, Marine
Golnesa Karimi-Zindashti, Ozgur Kurc
Summary: This study examines the performance of an in-house code utilizing a deterministic vortex method on the rotation of circular and square cylinders. The results show that rotational motion reduces drag forces, suppresses fluctuating forces, and increases lift forces. The code accurately predicts vortex shedding suppression and identifies the emergence of near-field wakes in the flow over rotating square cylinders.
Article
Engineering, Marine
George Dafermos, George Zaraphonitis
Summary: The survivability of damaged ships is of great importance and the regulatory framework is constantly updated. The introduction of the probabilistic damage stability framework has rationalized the assessment procedure. Flooding simulation tools can be used to investigate the dynamic response of damaged ships.
Article
Engineering, Marine
Xuyue Chen, Xu Du, Chengkai Weng, Jin Yang, Deli Gao, Dongyu Su, Gan Wang
Summary: This paper proposes a real-time drilling parameters optimization method for offshore large-scale cluster extended reach drilling based on intelligent optimization algorithm and machine learning. By establishing a ROP model with long short-term memory neurons, and combining genetic algorithm, differential evolution algorithm, and particle swarm algorithm, the method achieves real-time optimization of drilling parameters and significantly improves the ROP.
Article
Engineering, Marine
Sung-Jae Kim, Chungkuk Jin, MooHyun Kim
Summary: This study investigates the dynamic behavior of a moored submerged floating tunnel (SFT) under tsunami-like waves through numerical simulations and sensitivity tests. The results show that design parameters significantly affect the dynamics of the SFT system and mooring tensions, with shorter-duration and higher-elevation tsunamis having a greater impact.
Article
Engineering, Marine
G. Clarindo, C. Guedes Soares
Summary: Environmental contours are constructed using the Inverse-First Order Reliability Method based on return periods. The paper proposes the use of the Burr distribution to model the marginal distribution of long-term significant wave heights. The newly implemented scheme results in different environmental contours compared to the reference approach.