随着网络攻防对抗日益激烈,威胁情报的深度挖掘与有效利用成为提升网络安全防御策略的关键。针对传统信息抽取技术在训练数据构建和模型泛化能力方面的局限性,提出了一种基于大语言模型(Large Language Models,LLMs)的威胁情报实体及其...随着网络攻防对抗日益激烈,威胁情报的深度挖掘与有效利用成为提升网络安全防御策略的关键。针对传统信息抽取技术在训练数据构建和模型泛化能力方面的局限性,提出了一种基于大语言模型(Large Language Models,LLMs)的威胁情报实体及其相互关系抽取框架。借助LLMs的深度语义理解能力,通过提示工程技术准确抽取威胁实体及其相互关系,同时辅以LangChain扩展抽取广度。此外,通过搜索引擎集成提高情报挖掘的时效性和准确性。实验结果显示,该框架在少样本或零样本情境下表现出色,有效减少了误导信息的生成,实现了实时高效的情报知识提取。总体而言,引入一种灵活高效的威胁情报智能化挖掘方法,优化了威胁情报的知识融合过程,提升了网络防御的主动性与先进性。展开更多
This thesisanalyzes the expletives in the film Godfather with the theoretical frame of Halliday's(1985) System-Functional Linguistics Theory,especially from the perspective of the textual function of expletives,na...This thesisanalyzes the expletives in the film Godfather with the theoretical frame of Halliday's(1985) System-Functional Linguistics Theory,especially from the perspective of the textual function of expletives,namely,we will elaborate the textual function with the film Godfather as the example. The expletives may be very appropriate and necessary in certain situation since they have a cohesive function.展开更多
This thesis put the expletives into the whole language system to analyze, using the frame of the Halliday's(1985) System-Functional Linguistics Theory. The expletives can be analyzed on the sentential level, inclu...This thesis put the expletives into the whole language system to analyze, using the frame of the Halliday's(1985) System-Functional Linguistics Theory. The expletives can be analyzed on the sentential level, including the ideational function and the interpersonal function.展开更多
文摘随着网络攻防对抗日益激烈,威胁情报的深度挖掘与有效利用成为提升网络安全防御策略的关键。针对传统信息抽取技术在训练数据构建和模型泛化能力方面的局限性,提出了一种基于大语言模型(Large Language Models,LLMs)的威胁情报实体及其相互关系抽取框架。借助LLMs的深度语义理解能力,通过提示工程技术准确抽取威胁实体及其相互关系,同时辅以LangChain扩展抽取广度。此外,通过搜索引擎集成提高情报挖掘的时效性和准确性。实验结果显示,该框架在少样本或零样本情境下表现出色,有效减少了误导信息的生成,实现了实时高效的情报知识提取。总体而言,引入一种灵活高效的威胁情报智能化挖掘方法,优化了威胁情报的知识融合过程,提升了网络防御的主动性与先进性。
文摘This thesisanalyzes the expletives in the film Godfather with the theoretical frame of Halliday's(1985) System-Functional Linguistics Theory,especially from the perspective of the textual function of expletives,namely,we will elaborate the textual function with the film Godfather as the example. The expletives may be very appropriate and necessary in certain situation since they have a cohesive function.
文摘This thesis put the expletives into the whole language system to analyze, using the frame of the Halliday's(1985) System-Functional Linguistics Theory. The expletives can be analyzed on the sentential level, including the ideational function and the interpersonal function.
