转移学习驱动的假新闻检测和分类使用大型语言模型
Basma S Alqadi1, Suliman A Alsuhibany2, Samia Nawaz Yousafzai3
1Computer Science Department,College of Computer and Information Science, Imam Mohammad Ibn Saud Islamic University, Riyadh, Saudi Arabia.
Scientific reports
|August 5, 2025
概括
这项研究引入了一种新的转移学习框架,用于检测假新闻,特别是有限的数据. 我们的方法比现有模型提高了至少3.9%的准确性.
科学领域:
- 自然语言处理自然语言处理.
- 机器学习 机器学习
- 计算社会科学 计算社会科学
背景情况:
- 社交媒体上虚假新闻的快速传播给社会和个人带来了重大挑战.
- 目前的假新闻检测方法在有限的数据,语言复杂性和嵌入式集成方面扎.
研究的目的:
- 为有限的数据场景开发一个强大的假新闻检测框架.
- 提高虚假新闻分类模型的准确性和可解释性.
主要方法:
- 提出了一个多阶段的转移学习框架,使用RoBERTa,一个预训练的大型语言模型.
- 系统地比较了文字嵌入技术 (Word2Vec,一热编码) 与精致的微调.
- 在两个真实世界的基准数据集上评估了框架.
主要成果:
- 与最先进的模型相比,实现了3.9%的最低精度改进.
- 在有限的数据设置中证明了转移学习方法的有效性.
- 提供了关于嵌入技术对虚假新闻分类的影响的见解.
结论:
- 新的多阶段转移学习框架为虚假新闻检测提供了更强大,更准确的解决方案.
- 该方法有效地解决了现有方法的局限性,特别是在低数据环境中.
- 这项工作强调了嵌入技术和转移学习对于可靠的假新闻识别的重要性.
相关概念视频
02:07Improving Translational Accuracy
11.9K
Base complementarity between the three base pairs of mRNA codon and the tRNA anticodon is not a failsafe mechanism. Inaccuracies can range from a single mismatch to no correct base pairing at all. The free energy difference between the correct and nearly correct base pairs can be as small as 3 kcal/ mol. With complementarity being the only proofreading step, the estimated error frequency would be one wrong amino acid in every 100 amino acids incorporated. However, error frequencies observed in...
11.9K
01:22Language Development
450
Children master language quickly and with relative ease, supported by both biological predisposition and reinforcement. B. F. Skinner (1957) proposed that language is learned through reinforcement, while Noam Chomsky (1965) argued that language acquisition mechanisms are biologically determined.
The critical period for language acquisition suggests that the ability to acquire language is at its peak early in life. As people age, this proficiency decreases. Language development begins very...
The critical period for language acquisition suggests that the ability to acquire language is at its peak early in life. As people age, this proficiency decreases. Language development begins very...
450
01:27Language and Cognition
442
Language serves as a bridge between ideas and communication, influencing how individuals perceive and interact with the world. Psychologists have long debated whether language shapes thought or vice versa. This discussion gained grip with Edward Sapir and Benjamin Lee Whorf in the 1940s, who proposed that language determines thought, a concept known as linguistic determinism. They suggested that the vocabulary and structure of a language influence how its speakers think and perceive reality.
442
01:12Observational Learning
314
Albert Bandura's observational learning, also known as imitation or modeling, occurs when a person observes and imitates another's behavior. It is a quicker process than operant conditioning. A well-known example is the Bobo doll study, where children who saw an adult acting aggressively towards the doll were more likely to act aggressively when left alone, compared to those who observed a nonaggressive adult. Many psychologists view observational learning as a form of latent learning...
314
01:24Generalization, Discrimination, and Extinction
797
Generalization, discrimination, and extinction are key concepts in operant conditioning that influence how behaviors are learned and maintained.
Generalization occurs when a behavior reinforced in one context is performed in similar situations. For instance, a student who studies diligently for calculus and receives excellent grades might apply the same study habits to psychology and history, expecting similar results. Generalization shows how learning in one setting can influence behavior in...
Generalization occurs when a behavior reinforced in one context is performed in similar situations. For instance, a student who studies diligently for calculus and receives excellent grades might apply the same study habits to psychology and history, expecting similar results. Generalization shows how learning in one setting can influence behavior in...
797
01:27Associative Learning
576
Associative learning is a fundamental concept in behavioral psychology, wherein a connection is established between two stimuli or events, leading to a learned response. This process is critical in understanding how behaviors are acquired and modified. Conditioning, the mechanism through which associations are formed, can be divided into two main types: classical conditioning and operant conditioning, each elucidating different aspects of associative learning.
Classical conditioning, also known...
Classical conditioning, also known...
576