Spear Phishing Attacks(SPAs)pose a significant threat to the healthcare sector,resulting in data breaches,financial losses,and compromised patient confidentiality.Traditional defenses,such as firewalls and antivirus s...Spear Phishing Attacks(SPAs)pose a significant threat to the healthcare sector,resulting in data breaches,financial losses,and compromised patient confidentiality.Traditional defenses,such as firewalls and antivirus software,often fail to counter these sophisticated attacks,which target human vulnerabilities.To strengthen defenses,healthcare organizations are increasingly adopting Machine Learning(ML)techniques.ML-based SPA defenses use advanced algorithms to analyze various features,including email content,sender behavior,and attachments,to detect potential threats.This capability enables proactive security measures that address risks in real-time.The interpretability of ML models fosters trust and allows security teams to continuously refine these algorithms as new attack methods emerge.Implementing ML techniques requires integrating diverse data sources,such as electronic health records,email logs,and incident reports,which enhance the algorithms’learning environment.Feedback from end-users further improves model performance.Among tested models,the hierarchical models,Convolutional Neural Network(CNN)achieved the highest accuracy at 99.99%,followed closely by the sequential Bidirectional Long Short-Term Memory(BiLSTM)model at 99.94%.In contrast,the traditional Multi-Layer Perceptron(MLP)model showed an accuracy of 98.46%.This difference underscores the superior performance of advanced sequential and hierarchical models in detecting SPAs compared to traditional approaches.展开更多
老舍英文话剧The Spear that Demolishes Five Tigers at Once是对其短篇小说《断魂枪》的改写。在剧本里,老舍不再像英译《离婚》时那样以批判中国文化为旨归,而是通过改写颂扬中国文化,并把文化传统中的"刚性文化"特质与西...老舍英文话剧The Spear that Demolishes Five Tigers at Once是对其短篇小说《断魂枪》的改写。在剧本里,老舍不再像英译《离婚》时那样以批判中国文化为旨归,而是通过改写颂扬中国文化,并把文化传统中的"刚性文化"特质与西方新型的科学技术结合,从而建构他自1930年代就开始思考并不断丰富的中国精神文化现代化的"内涵"。展开更多
本刊一九八三年第三期发表的《用or还是用nor》一文,对高中英语课本第一册第二课中的一个句子(“The elephant isn’t like a wall, or a spear, or a snake, or a tree…”)提出了质疑。该文根据《英语惯用法词典》的有关论述认为:在...本刊一九八三年第三期发表的《用or还是用nor》一文,对高中英语课本第一册第二课中的一个句子(“The elephant isn’t like a wall, or a spear, or a snake, or a tree…”)提出了质疑。该文根据《英语惯用法词典》的有关论述认为:在否定句中的并列谓语。展开更多
or 属连词。它在中学英语教材中出现频率很高,应用也非常普遍。现从五个方面来谈谈 or 的用法。一、or 表示选择,连续两个或两个以上平行的成分。作“或”、“或者”、“还是”解。如:1.Is it green or blue?它是绿的还是蓝的?2.I’d li...or 属连词。它在中学英语教材中出现频率很高,应用也非常普遍。现从五个方面来谈谈 or 的用法。一、or 表示选择,连续两个或两个以上平行的成分。作“或”、“或者”、“还是”解。如:1.Is it green or blue?它是绿的还是蓝的?2.I’d like it to be black,white or grey.我希望它是黑的,白的,或是灰的。展开更多
让我们先看一看96高考英语单项选择题第11小题:How beautifully she sings.I have never heard___.A.the better voice B.a good voiceC.the best voice C.a better voice不少考生对该题答案莫衷一是。此题的正确答案为 D。实际上,本小...让我们先看一看96高考英语单项选择题第11小题:How beautifully she sings.I have never heard___.A.the better voice B.a good voiceC.the best voice C.a better voice不少考生对该题答案莫衷一是。此题的正确答案为 D。实际上,本小题所考查的就是比较句式中的一种类型——极比句。所谓极比句就是表示人或事物的性状特征达到了最高的程度。极比句通常有下列几种结构:展开更多
基金funded by the Deanship of Graduate Studies and Scientific Research at Jouf University under Grant Number(DGSSR-2023-02-02513).
文摘Spear Phishing Attacks(SPAs)pose a significant threat to the healthcare sector,resulting in data breaches,financial losses,and compromised patient confidentiality.Traditional defenses,such as firewalls and antivirus software,often fail to counter these sophisticated attacks,which target human vulnerabilities.To strengthen defenses,healthcare organizations are increasingly adopting Machine Learning(ML)techniques.ML-based SPA defenses use advanced algorithms to analyze various features,including email content,sender behavior,and attachments,to detect potential threats.This capability enables proactive security measures that address risks in real-time.The interpretability of ML models fosters trust and allows security teams to continuously refine these algorithms as new attack methods emerge.Implementing ML techniques requires integrating diverse data sources,such as electronic health records,email logs,and incident reports,which enhance the algorithms’learning environment.Feedback from end-users further improves model performance.Among tested models,the hierarchical models,Convolutional Neural Network(CNN)achieved the highest accuracy at 99.99%,followed closely by the sequential Bidirectional Long Short-Term Memory(BiLSTM)model at 99.94%.In contrast,the traditional Multi-Layer Perceptron(MLP)model showed an accuracy of 98.46%.This difference underscores the superior performance of advanced sequential and hierarchical models in detecting SPAs compared to traditional approaches.
文摘老舍英文话剧The Spear that Demolishes Five Tigers at Once是对其短篇小说《断魂枪》的改写。在剧本里,老舍不再像英译《离婚》时那样以批判中国文化为旨归,而是通过改写颂扬中国文化,并把文化传统中的"刚性文化"特质与西方新型的科学技术结合,从而建构他自1930年代就开始思考并不断丰富的中国精神文化现代化的"内涵"。
文摘本刊一九八三年第三期发表的《用or还是用nor》一文,对高中英语课本第一册第二课中的一个句子(“The elephant isn’t like a wall, or a spear, or a snake, or a tree…”)提出了质疑。该文根据《英语惯用法词典》的有关论述认为:在否定句中的并列谓语。
文摘or 属连词。它在中学英语教材中出现频率很高,应用也非常普遍。现从五个方面来谈谈 or 的用法。一、or 表示选择,连续两个或两个以上平行的成分。作“或”、“或者”、“还是”解。如:1.Is it green or blue?它是绿的还是蓝的?2.I’d like it to be black,white or grey.我希望它是黑的,白的,或是灰的。
文摘让我们先看一看96高考英语单项选择题第11小题:How beautifully she sings.I have never heard___.A.the better voice B.a good voiceC.the best voice C.a better voice不少考生对该题答案莫衷一是。此题的正确答案为 D。实际上,本小题所考查的就是比较句式中的一种类型——极比句。所谓极比句就是表示人或事物的性状特征达到了最高的程度。极比句通常有下列几种结构:
