Genomic language models with k-mer tokenization strategies for plant genome annotation and regulatory element strength prediction
These videos have been matched automatically. Contact us if they are not relevant.
These videos have been matched automatically. Contact us if they are not relevant.
View abstract on PubMed
Summary
This summary is machine-generated.Optimizing k-mer tokenization strategies significantly boosts genomic language model performance for plant biology tasks. Thoughtful design, not just model size, is key for accurate and efficient in silico analysis.
Area Of Science
- Genomics
- Bioinformatics
- Computational Biology
Background
- Genomic language models (GLMs) offer powerful in silico analysis capabilities.
- Current GLMs often require substantial computational resources.
- K-mer tokenization is a fundamental component of GLMs.
Purpose Of The Study
- To investigate the impact of k-mer tokenization strategies on transformer-based GLM performance in plant genomics.
- To evaluate different k-mer window sizes and overlap schemes.
- To identify optimal tokenization for efficient and accurate genomic sequence modeling.
Main Methods
- Evaluated transformer-based GLMs with varying k-mer window sizes (3-8) and overlap strategies.
- Tested models on plant genomic tasks: splice site prediction and alternative polyadenylation site prediction.
- Compared performance against state-of-the-art models like AgroNT.
Main Results
- K-mer tokenization design critically influences GLM performance, often surpassing the impact of model scale.
- Overlap-based tokenization generally improves performance by retaining local sequence context.
- Non-overlap configurations can achieve competitive accuracy with enhanced computational efficiency for specific tasks.
- A smaller model with optimized tokenization performed comparably to larger, state-of-the-art models.
Conclusions
- K-mer tokenization strategy is a crucial determinant of success in genomic sequence modeling, not solely model size.
- Optimized tokenization enables the development of efficient and high-performing GLMs for plant biology.
- Findings offer practical guidance for designing specialized genomic models.
These videos have been matched automatically. Contact us if they are not relevant.
These videos have been matched automatically. Contact us if they are not relevant.
Related Concept Videos
The genome refers to all of the genetic material in an organism. It can range from a few million base pairs in microbial cells to several billion base pairs in many eukaryotic organisms. Genome assembly refers to the process of taking the DNA sequencing data and putting it all back together in a correct order to create a close representation of the original genome. This is followed by the identification of functional elements on the newly assembled genome, a process called genome annotation.
Cis-regulatory sequences are short fragments of non-coding DNA that are present on the same chromosomes as the genes that they regulate. These fragments serve as binding sites for transcriptional regulators, proteins that are responsible for controlling gene transcription and differential gene expression across cell types in eukaryotes. Cis-regulatory sequences can be close to the gene of interest or thousands of bases away in the DNA sequence; however, those sequences that are further away are...
Genome-wide association studies or GWAS are used to identify whether common SNPs are associated with certain diseases. Suppose specific SNPs are more frequently observed in individuals with a particular disease than those without the disease. In that case, those SNPs are said to be associated with the disease. Chi-square analysis is performed to check the probability of the allele likely to be associated with the disease.
GWAS does not require the identification of the target gene involved in...
Gene expression in prokaryotes is governed by constitutive and regulated systems, allowing cells to balance the production of essential proteins with adaptive responses to environmental changes.Constitutive Gene ExpressionConstitutive, or housekeeping, genes are continuously expressed as they encode proteins vital for fundamental cellular processes. These include enzymes for glycolysis, ribosomal components for protein synthesis, and proteins involved in DNA replication. Their constant...
Sporulation is a complex developmental process that allows certain Gram-positive bacteria, such as Bacillus subtilis and Clostridium species, to survive extreme environmental conditions. This process is tightly regulated by a series of signaling cascades and transcriptional controls, ensuring the formation of a highly resistant endospore.Sporulation is triggered by unfavorable conditions, such as nutrient depletion, and is governed by a phosphorelay system. One of the sensor kinases, such as...