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Improved Harris Hawks Algorithm and Its Application in Feature Selection

computers, Materials & Continua 2024年第10期81卷 1251-1273页

作者： Qianqian Zhang Yingmei Li Jianjun Zhan Shan Chen School of Computer Science and Information Engineering Harbin Normal UniversityHarbin150025China College of Systems Engineering National University of Defense TechnologyChangsha410073China

This research focuses on improving the Harris’Hawks Optimization algorithm(HHO)by tackling several of its shortcomings,including insufficient population diversity,an imbalance in exploration ***,and a lack of thorough exploitation *** tackle these shortcomings,it proposes enhancements from three distinct perspectives:an initialization technique for populations grounded in opposition-based learning,a strategy for updating escape energy factors to improve the equilibrium between exploitation and exploration,and a comprehensive exploitation approach that utilizes variable neighborhood search along with mutation *** effectiveness of the Improved Harris Hawks Optimization algorithm(IHHO)is assessed by comparing it to five leading algorithms across 23 benchmark test *** findings indicate that the IHHO surpasses several contemporary algorithms its problem-solving ***,this paper introduces a feature selection method leveraging the IHHO algorithm(IHHO-FS)to address challenges such as low efficiency in feature selection and high computational costs(time to find the optimal feature combination and model response time)associated with high-dimensional *** analyses between IHHO-FS and six other advanced feature selection methods are conducted across eight *** results demonstrate that IHHO-FS significantly reduces the computational costs associated with classification models by lowering data dimensionality,while also enhancing the efficiency of feature ***,IHHO-FS shows strong competitiveness relative to numerous algorithms.

关键词： HHO IHHO population diversity energy factor update strategy deep exploitation strategy feature selection

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Prediction of Social Influence in Social Networks 17

Prediction of Social Influence in Social Networks

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IEEE Congress on Cybermatics: 17th IEEE International Conference on Internet of Things, iThings 2024, 20th IEEE International Conference on Green Computing and Communications, GreenCom 2024, 17th IEEE International Conference on Cyber, Physical and Social Computing, CPSCom 2024, 10th IEEE International Conference on Smart Data, SmartData 2024

作者： Chen, Shiyu Li, Qianmu Nanjing University of Science and Technology School of Computer Science and Engineering Nanjing China

ISBN: (纸本)9798350351637

Social influence is an individual's ability to change the thoughts or behaviors of others due to factors such as social status, social connections, and social wealth. Studying social influence, especially modeling and measuring the influence between people on large-scale social network data, is very important for product promotion, friend recommendation, expert discovery and user behavior prediction in social applications. In addition, it plays an important role in promoting the virtual business market and national public opinion monitoring. From a computational point of view, the research on social influence includes detection, modeling, measurement, and application of social influence. First, a training dataset is generated through independent cascade and linear threshold models. The influence of each node in the network is then calculated through graph convolutional network and reinforcement learning techniques. Finally, the proposed model is tested on three real-world large-scale datasets. Experimental results show that the proposed method can help predict the influence of nodes in social networks. © 2024 IEEE.

关键词： deep learning graph convolutional network graph embedding reinforcement learning social influence social networks

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Hybrid Bacterial Foraging Optimization with Sparse Autoencoder for Energy Systems

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computer Systems science & engineering 2023年第4期45卷 701-714页

作者： Helen Josephine V L Ramchand Vedaiyan V.M.Arul Xavier Joy Winston J A.Jegatheesan D.Lakshmi Joshua Samuel Raj Business Analytics School of Business and ManagementChrist UniversityBangalore560029India Department of Computer Science and IT School of SciencesJain Deemed to be UniversityBangalore560027India Department of Computer Science and Engineering Karunya Institute of Technology and SciencesCoimbatore641114India College of Computer Studies University of Technology Bahrain18041Bahrain Institute of Computer Science and Engineering Saveetha School of EngineeringSaveetha Institute of Medical and Technical SciencesChennai602105India Department of Computer Science and Engineering Panimalar Institute of TechnologyChennai600123India Department of Information Science&Engineering CMR Institute of TechnologyBengaluru560037India

The Internet of Things(IoT)technologies has gained significant interest in the design of smart grids(SGs).The increasing amount of distributed generations,maturity of existing grid infrastructures,and demand network transformation have received maximum *** essential energy storing model mostly the electrical energy stored methods are developing as the diagnoses for its procedure was becoming further *** dynamic electrical energy stored model using Electric Vehicles(EVs)is comparatively standard because of its excellent electrical property and flexibility however the chance of damage to its battery was there in event of overcharging or deep discharging and its mass penetration deeply influences the *** paper offers a new Hybridization of Bacterial foraging optimization with Sparse Autoencoder(HBFOA-SAE)model for IoT Enabled energy *** proposed HBFOA-SAE model majorly intends to effectually estimate the state of charge(SOC)values in the IoT based energy *** accomplish this,the SAE technique was executed to proper determination of the SOC values in the energy ***,for improving the performance of the SOC estimation process,the HBFOA is *** addition,the HBFOA technique is derived by the integration of the hill climbing(HC)concepts with the BFOA to improve the overall *** ensuring better outcomes for the HBFOA-SAE model,a comprehensive set of simulations were performed and the outcomes are inspected under several *** experimental results reported the supremacy of the HBFOA-SAE model over the recent state of art approaches.

关键词： Internet of things energy systems state of charge estimation machine learning deep learning metaheuristics

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An Improved Dehazing Algorithm Combining Dark Channel Prior and Artificial Bee Colony Algorithm

An Improved Dehazing Algorithm Combining Dark Channel Prior ...

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2024 International Applied Computational Electromagnetics Society Symposium, ACES-China 2024

作者： Li, Zhenguo Ma, Lisheng Hou, Yibin Li, Jiaxin Tao, Tao Anhui University of Technology School of Computer Science and Technology China Chuzhou University School of Computer and Information Engineering China

ISBN: (纸本)9798350355581

Aiming to address significant issues like severe halo effects and excessive noise present in images processed by the traditional dark channel prior-based dehazing algorithm using fixed values, a proposed enhancement method leverages the characteristics of the artificial bee colony algorithm for parameter optimization. It seeks the optimal atmospheric light transmission factor values within different average image brightness ranges and integrates these values into the dark channel prior-based dehazing algorithm. Simultaneously, in estimating the atmospheric light, a median filtering algorithm replaces the original twostep minimum value filtering process. This improvement exhibits notable effectiveness in reducing halo effects and noise compared to the traditional dark channel prior-based dehazing algorithm. © 2024 IEEE.

关键词： Median filters

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Collaborative Learning with Curriculum Loss for Accurate and Interpretable Weakly Supervised Whole-Slide Image Classification Collaborative Learning with Curriculum Loss for Whole-Slide Image Classification

Collaborative Learning with Curriculum Loss for Accurate and...

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2024 International Conference on Machine Learning and Intelligent Computing, MLIC 2024

作者： Yang, Rui Liu, Pei Ji, Luping School of Computer Science and Engineering University of Electronic Science and Technology of China China

Weakly-Supervised Learning (WSL) has been increasingly concerned in Whole-Slide Image (WSI) classification, meanwhile, an open question arises: could WSL-based models provide us with an accurate interpretation of their decisions? Although many research works have made exciting progress via building an Auxiliary Instance Branch (AIB) on a bag-level network, there are still two typical problems to be confronted with in training WSL-based AIB: i) an overwhelming influence of negative instances and ii) the inconsistent learning between bag-level network and AIB. To address them, this paper proposes collaborative learning with curriculum loss. This scheme, on one hand, provides a curriculum loss for optimizing AIB, to alleviate the first problem. Considering the knowledge reliability in WSL, this loss generalizes an original quality focal loss to WSL scenarios by curriculum instances. On the other hand, to overcome the second problem, this scheme trains a bag-level network under the supervision of AIB by a reversed curriculum loss, making both learn collaboratively. Comparative experiments prove that our scheme could often surpass existing ones in both accuracy and interpretability. Moreover, it is found that the knowledge reliability-inspired curriculum instance is a critical factor in bringing comprehensive improvements. © 2024 R. Yang, P. Liu & L. Ji.

关键词： Computational Pathology Curriculum Loss Model Interpretability Multiple Instance Learning Weakly-Supervised Learning

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STLL: Spatio-Temporal Graph and Lane Sequence Based Lightweight Vehicle Trajectory Prediction 10

STLL: Spatio-Temporal Graph and Lane Sequence Based Lightwei...

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10th IEEE Smart World Congress, SWC 2024

作者： Liu, Yuzhen Huang, Lei Wang, Xiaoliang Ai, Yuanyuan Zhou, Xiaolan Hunan University of Science and Technology School of Computer Science and Engineering Xiangtan China

ISBN: (纸本)9798331520861

Accurate and swift prediction of surrounding vehicle trajectories is essential for autonomous driving. Currently, numerous methods have achieved excellent accuracy in trajectory prediction but they often overlook the prediction speed. Autonomous vehicles must quickly respond to various situations for safe driving. Therefore, we propose a lightweight model named STLL. We model the interactions among vehicles using a graph that fully considers the spatio-temporal information. Additionally, we represent all lanes by a sequence and employ an efficient method to encode lanes. These approaches effectively enable the model to extract and fuse features of vehicles and lanes, leading to accurate and swift trajectory predictions. We conduct our experiments on the widely recognized real-world trajectory prediction datasets: nuScenes and Argoverse. The results demonstrate that our method not only significantly reduces prediction time and the number of model parameters but also maintains high prediction accuracy. © 2024 IEEE.

关键词： Prediction models

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A Unimodal Valence-Arousal Driven Contrastive Learning Framework for Multimodal Multi-Label Emotion Recognition 24

A Unimodal Valence-Arousal Driven Contrastive Learning Frame...

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32nd ACM International Conference on Multimedia, MM 2024

作者： Zheng, Wenjie Yu, Jianfei Xia, Rui School of Computer Science and Engineering Nanjing University of Science and Technology Nanjing China

ISBN: (纸本)9798400706868

Multimodal Multi-Label Emotion Recognition (MMER) aims to identify one or more emotion categories expressed by an utterance of a speaker. Despite obtaining promising results, previous studies on MMER represent each emotion category using a one-hot vector and ignore the intrinsic relations between emotions. Moreover, existing works mainly learn the unimodal representation based on the multimodal supervision signal of a single sample, failing to explicitly capture the unique emotional state of each modality as well as its emotional correlation between samples. To overcome these issues, we propose a Unimodal Valence-Arousal driven contrastive learning framework (UniVA) for the MMER task. Specifically, we adopt the valence-arousal (VA) space to represent each emotion category and regard the emotion correlation in the VA space as priors to learn the emotion category representation. Moreover, we employ pre-trained unimodal VA models to obtain the VA scores for each modality of the training samples, and then leverage the VA scores to construct positive and negative samples, followed by applying supervised contrastive learning to learn the VA-aware unimodal representations for multi-label emotion prediction. Experimental results on two benchmark datasets MOSEI and M3ED show that the proposed UniVA framework consistently outperforms a number of existing methods for the MMER task. The source code is publicly released at https://***/NUSTM/UniVA. © 2024 ACM.

关键词： Contrastive Learning

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Simplified Kernel-Based Cost-Sensitive Broad Learning System for Imbalanced Fault Diagnosis

IEEE Transactions on Artificial Intelligence

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IEEE Transactions on Artificial Intelligence 2024年第12期5卷 6629-6644页

作者： Yang, Kaixiang Chen, Wuxing Shi, Yifan Yu, Zhiwen Chen, C. L. Philip South China University of Technology School of Computer Science and Engineering Guangdong Guangzhou510006 China South China University of Technology School of Future Technology Guangdong Guangzhou510006 China Pengcheng Laboratory Guangdong Shenzhen518066 China Huaqiao University College of Engineering Fujian Quanzhou362021 China South China University of Technology School of Computer Science and Engineering Guangdong Guangzhou510650 China

In the field of intelligent manufacturing, tackling the classification challenges caused by imbalanced data is crucial. Although the broad learning system (BLS) has been recognized as an effective and efficient method, its performance wanes with imbalanced datasets. Therefore, this article proposes a novel approach named simplified kernel-based cost-sensitive broad learning system (SKCSBLS) to address these issues. Based on the framework of cost-sensitive broad learning system (CSBLS) that assigns distinctive adjustment costs for individual classes, SKCSBLS emphasizes the importance of the minority class while mitigating the impact of data imbalance. Additionally, considering the complexity introduced by noisy or overlapping data points, we incorporate kernel mapping into the CSBLS. This improvement not only improves the system's capability to handle overlapping classes of samples, but also improves the overall classification effectiveness. Our experimental results highlight the potential of SKCSBLS in overcoming the challenges inherent in unbalanced data, providing a robust solution for advanced fault diagnosis in intelligent systems. © 2020 IEEE.

关键词： Adversarial machine learning

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Graph Convolutional Networks with Fine-Tuned Word Representations for Visual Question Answering 10

Graph Convolutional Networks with Fine-Tuned Word Representa...

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10th IEEE Smart World Congress, SWC 2024

作者： Owusu, Jim Wilson Zakari, Rufai Yusuf Qin, Ke He, Tao University of Electronic Science and Technology of China School of Computer Science and Engineering China

ISBN: (纸本)9798331520861

Recent advances in graph convolutional networks (GCNs) have demonstrated their effectiveness in vision-language tasks such as visual question answering (VQA), primarily due to their ability to capture both spatial and semantic relationships. However, through a series of experiments applying GCNs to VQA tasks, we observe that the performance of GCNs is highly sensitive to various subtasks, often resulting in unstable outputs. This variability can be attributed to factors such as the size of the training and testing datasets, evaluation metrics, and the selection of hyperparameters. To ensure fair evaluations of GCN-based VQA models, it is essential to implement consistent evaluation schemes across these factors. In this study, we propose a GCN framework for VQA that leverages fine-tuned word representations from the GloVe model, specifically tailored to address reasoning-based questions. We comprehensively assess the performance of our framework using multiple evaluation metrics on both the GQA and VQA 2.0 datasets. Our experimental results demonstrate significant improvements over existing methods, showcasing the effectiveness of the proposed approach in evaluation setting. © 2024 IEEE.

关键词： Visual languages

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An attention-based teacher-student model for multivariate short-term landslide displacement prediction incorporating weather forecast data

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Journal of Mountain science 2024年第8期21卷 2739-2753页

作者： CHEN Jun HU Wang ZHANG Yu QIU Hongzhi WANG Renchao Sichuan Artificial Intelligence Research Institute Yibin 644000China School of Computer Science and Engineering University of Electronic Science and Technology of ChinaChengdu 611731China School of Architecture and Civil Engineering Chengdu UniversityChengdu 610106China

Predicting the displacement of landslide is of utmost practical importance as the landslide can pose serious threats to both human life and ***,traditional methods have the limitation of random selection in sliding window selection and seldom incorporate weather forecast data for displacement prediction,while a single structural model cannot handle input sequences of different lengths at the same *** order to solve these limitations,in this study,a new approach is proposed that utilizes weather forecast data and incorporates the maximum information coefficient(MIC),long short-term memory network(LSTM),and attention mechanism to establish a teacher-student coupling model with parallel structure for short-term landslide displacement *** MIC,a suitable input sequence length is selected for the LSTM *** investigate the influence of rainfall on landslides during different seasons,a parallel teacher-student coupling model is developed that is able to learn sequential information from various time series of different *** teacher model learns sequence information from rainfall intensity time series while incorporating reliable short-term weather forecast data from platforms such as China Meteorological Administration(CMA)and Reliable Prognosis(https://***)to improve the model’s expression capability,and the student model learns sequence information from other time *** attention module is then designed to integrate different sequence information to derive a context vector,representing seasonal temporal attention ***,the predicted displacement is obtained through a linear *** proposed method demonstrates superior prediction accuracies,surpassing those of the support vector machine(SVM),LSTM,recurrent neural network(RNN),temporal convolutional network(TCN),and LSTM-Attention *** achieves a mean absolute error(MAE)of 0.072 mm,root mean square error(RMSE)of 0.096 mm,and pearson correlation coefficients(PC

关键词： Landslide prediction MIC LSTM Attention mechanism Teacher Student model Prediction stability and interpretability

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