松鼠的脆弱性SARS-CoV-2血统分配到对抗性攻击的攻击
Amiel Meiseles1, Yair Motro2, Lior Rokach1
1Dept. of Software and Information Systems Engineering, Ben Gurion University of the Negev, Beer Sheva, Israel.
Artificial intelligence in medicine
|December 2, 2023
概括
众所周知的SARS-CoV-2血统工具Pangolin易受敌对攻击的影响. 研究人员表明,轻微的遗传变化可以改变血统分配,可能掩盖疫情爆发.
科学领域:
- 基因组学就是基因组学.
- 生物信息学是一种生物信息学.
- 计算生物学 计算生物学
背景情况:
- 准确的SARS-CoV-2血统分配对于疫情应对至关重要.
- 广泛使用的工具Pangolin使用 pangoLEARN 机器学习模型进行血统分类.
- 众所周知,机器学习模型容易受到对抗性攻击.
研究的目的:
- 调查Pangolin工具的脆弱性,特别是它的 pangoLEARN 模型,以对抗攻击.
- 为了证明改变SARS-CoV-2血统分配与最小的遗传修改的可行性.
主要方法:
- 开发了一个针对 pangoLEARN 架构的攻击.
- 在SARS-CoV-2基因组序列中引入了小小的干扰 (2-3个基对变化).
- 评估了攻击在改变不同血统的血统分配的成功率.
主要成果:
- 鱼表现出对非VoC血统的对抗性攻击的高度脆弱性,成功率为0.98-1.
- 对使用非ML方法 (Usher和Scorpio) 的VoC血统的攻击基本上没有成功.
- 该研究强调了恶意使用的可能性,例如伪造或掩盖疫情爆发.
结论:
- 基于机器学习的工具,如 pangoLEARN,容易受到对手的操纵.
- 非机器学习方法为VoC谱系提供了对此类攻击的更强大的稳定性.
- 微生物基因组学开发人员必须解决这些漏洞,以确保数据完整性和可靠的流行病应对.
更多相关视频
06:08Author Spotlight: A Pseudotype Virus System for Assessing Omicron Subvariants and Neutralizing Antibodies in SARS-CoV-2 Research
Published on: September 8, 2023
1.2K
08:40Production of Pseudotyped Particles to Study Highly Pathogenic Coronaviruses in a Biosafety Level 2 Setting
Published on: March 1, 2019
59.0K
相关概念视频
Single Nucleotide Polymorphisms-SNPs
15.1K
A single nucleotide polymorphism or SNP is a single nucleotide variation at a specific genomic position in a large population. It is the most prevalent type of sequence variation found in the human genome. Point mutations that occur in more than 1% of the population qualify as SNPs. These are present once every 1000 nucleotides on an average in the human genome. Replacement of a purine with another purine (A/G) or a pyrimidine with another pyrimidine (C/T) is known as a transition. In contrast,...
15.1K
Viral Recombination
23.5K
Cells are sometimes infected by more than one virus at once. When two viruses disassemble to expose their genomes for replication in the same cell, similar regions of their genomes can pair together and exchange sequences in a process called recombination. Alternatively, viruses with segmented genomes can swap segments in a process called reassortment.
23.5K
Viral Mutations
32.3K
A mutation is a change in the sequence of bases of DNA or RNA in a genome. Some mutations occur during replication of the genome due to errors made by the polymerase enzymes that replicate DNA or RNA. Unlike DNA polymerase, RNA polymerase is prone to errors because it is not capable of “proofreading” its work. Viruses with RNA-based genomes, like HIV, therefore accrue mutations faster than viruses with DNA-based genomes. Because mutation and recombination provide the raw material...
32.3K
Leaky Scanning
5.1K
During most eukaryotic translation processes, the small 40S ribosome subunit scans an mRNA from its 5' end until it encounters the first start AUG codon. The large 60S ribosomal subunit then joins the smaller one to initiate protein synthesis. The location of the translation initiation is largely determined by the nucleotides near the start codon as there may be multiple translation initiation sites present on the mRNA. Marilyn Kozak discovered that the sequence RCCAUGG (where R...
5.1K
