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荒漠化无人机监测影像4种处理软件比较分析 被引量:1
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作者 金文德 云露洋 于洪波 《内蒙古林业科技》 2024年第1期51-55,共5页
本研究对比了荒漠化无人机样地监测常用的影像处理软件:Agisoft Metashape Profes‐sional(64 bit)、Context Capture Center Engine、Pix4Dmapper和大疆智图(DJI Terra)。通过对比地面分辨率、总耗时、重投影误差RMS、正射影像建图覆... 本研究对比了荒漠化无人机样地监测常用的影像处理软件:Agisoft Metashape Profes‐sional(64 bit)、Context Capture Center Engine、Pix4Dmapper和大疆智图(DJI Terra)。通过对比地面分辨率、总耗时、重投影误差RMS、正射影像建图覆盖面积和正射影像精度误差等指标,表明:Agisoft Metashape Professional(64 bit)在时间、精度和质量方面表现良好,适用于低空小面积的影像合成;DJI Terra在处理无明显地表物时功能相对较差;Pix4Dmapper生成的影像具有纵向波纹;Context Capture Center Engine整体色彩较真实,但在水域处理上不如其他3款软件。建议在荒漠化无人机样地监测中,使用处理时间、精度及质量都较好的Agisoft Metashape Professional(64 bit)软件。 展开更多
关键词 Agisoft Metashape Professional(64 bit) context Capture Center Engine Pix4Dmapper DJI Terra 荒漠化监测 无人机
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Fine-Tuning Cyber Security Defenses: Evaluating Supervised Machine Learning Classifiers for Windows Malware Detection
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作者 Islam Zada Mohammed Naif Alatawi +4 位作者 Syed Muhammad Saqlain Abdullah Alshahrani Adel Alshamran Kanwal Imran Hessa Alfraihi 《Computers, Materials & Continua》 SCIE EI 2024年第8期2917-2939,共23页
Malware attacks on Windows machines pose significant cybersecurity threats,necessitating effective detection and prevention mechanisms.Supervised machine learning classifiers have emerged as promising tools for malwar... Malware attacks on Windows machines pose significant cybersecurity threats,necessitating effective detection and prevention mechanisms.Supervised machine learning classifiers have emerged as promising tools for malware detection.However,there remains a need for comprehensive studies that compare the performance of different classifiers specifically for Windows malware detection.Addressing this gap can provide valuable insights for enhancing cybersecurity strategies.While numerous studies have explored malware detection using machine learning techniques,there is a lack of systematic comparison of supervised classifiers for Windows malware detection.Understanding the relative effectiveness of these classifiers can inform the selection of optimal detection methods and improve overall security measures.This study aims to bridge the research gap by conducting a comparative analysis of supervised machine learning classifiers for detecting malware on Windows systems.The objectives include Investigating the performance of various classifiers,such as Gaussian Naïve Bayes,K Nearest Neighbors(KNN),Stochastic Gradient Descent Classifier(SGDC),and Decision Tree,in detecting Windows malware.Evaluating the accuracy,efficiency,and suitability of each classifier for real-world malware detection scenarios.Identifying the strengths and limitations of different classifiers to provide insights for cybersecurity practitioners and researchers.Offering recommendations for selecting the most effective classifier for Windows malware detection based on empirical evidence.The study employs a structured methodology consisting of several phases:exploratory data analysis,data preprocessing,model training,and evaluation.Exploratory data analysis involves understanding the dataset’s characteristics and identifying preprocessing requirements.Data preprocessing includes cleaning,feature encoding,dimensionality reduction,and optimization to prepare the data for training.Model training utilizes various supervised classifiers,and their performance is evaluated using metrics such as accuracy,precision,recall,and F1 score.The study’s outcomes comprise a comparative analysis of supervised machine learning classifiers for Windows malware detection.Results reveal the effectiveness and efficiency of each classifier in detecting different types of malware.Additionally,insights into their strengths and limitations provide practical guidance for enhancing cybersecurity defenses.Overall,this research contributes to advancing malware detection techniques and bolstering the security posture of Windows systems against evolving cyber threats. 展开更多
关键词 Security and privacy challenges in the context of requirements engineering supervisedmachine learning malware detection windows systems comparative analysis Gaussian Naive Bayes K Nearest Neighbors Stochastic Gradient Descent Classifier Decision Tree
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