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bioinformatics

62 papers

#artificial intelligence Preprint Sep 2026

PFArena: Benchmarking Language Models for Protein Modification

The evaluation reveals that model performance shifts systematically with the availability of target-specific experimental evidence: PLMs demonstrate proficiency in open-ended single-mutant generation by leveraging protein-specific priors, whereas LLMs and agents perform strongly in multi-mutant ranking, particularly wh...

Ya-Wen Ouyang, Xin-Bo Zhang, Zi-Yuan Ma et al. · 0 citations

Sampling at intermediate temperatures is optimal for training large language models in protein structure prediction

It is found that, at variance with networks not based on the attention mechanism, the lack of a first--order--like transition in the loss of the transformer produces a range of intermediate temperatures with good learning properties; this is true both for synthetic and natural protein sequences.

L. Ghiringhelli, A. Zambon, G. Tiana · 0 citations
#machine learning Open access Feb 2025

Hierarchical sparse Bayesian multitask learning for disease prediction in pooled microbiome studies

A hierarchical Bayesian multitask learning model that is applicable to the general multi-task binary classification learning problem where the model assumes a shared sparsity structure across different tasks is proposed and derived based on variational inference to approximate the posterior distribution.

Hao-Nan Zhu, Andre R. Goncalves, Car Reen Kok et al. · 1 citation
#artificial intelligence Preprint Open access Sep 2026

STAR-VAE: A Scalable Latent-Variable Transformer for Controllable Molecular Generation

Many molecular Transformers lack probabilistic latent variables for posterior inference and latent interpolation. We introduce STAR-VAE, a SELFIES-encoded, Transformer-based, AutoRegressive Variational AutoEncoder combining a bidirectional encoder with an autoregressive decoder pretrained on 79 million PubChem molecule...

Bum Chul Kwon, Ben Shapira, Moshiko Raboh et al. · 0 citations
#artificial intelligence Preprint Open access Sep 2026

Adapting Boltz-2 with limited experimental activity data improves early enrichment in virtual screening

Virtual screening aims to prioritize active compounds from large chemical libraries within a limited experimental budget. When applying Boltz-2 to virtual screening, a key challenge is how to use limited experimental data from the target assay to improve the prioritization of active compounds. We investigated whether f...

Kairi Furui, Masahito Ohue · 0 citations
#machine learning Preprint Oct 2025

Transformers Discover Molecular Structure Without Graph Priors

This work develops a systematic understanding of how physical patterns can alternatively be discovered directly from data by training a model without domain-specific priors, including any manually defined atomistic pairwise interactions, and finds that the model autonomously recovers key physical structure.

T. Kreiman, Yu-Tong Bai, Fadi Atieh et al. · 10 citations

Pareto-Optimal Offline Reinforcement Learning via Smooth Tchebysheff Scalarization

STOMP is a powerful, robust multi-objective alignment algorithm that can meaningfully improve post-training in multiple domains and achieves or ties for the highest hypervolumes on 16/18 protein tasks and 5/6 natural language tasks.

Aadyot Bhatnagar, Peter Mørch Groth, Sebastian Ibarraran et al. · 0 citations
#artificial intelligence Preprint Sep 2026

Chemical and geometric representation fidelity improves drug--target affinity prediction

ReGeoDTA is developed, a representation-preserving framework that maintains affinity-relevant chemical heterogeneity in molecular representations and continuous geometric relationships in protein structures that identifies representation fidelity as an upstream design principle for accurate and generalizable drug--targ...

Yi-Xiao Li, Yi-Ning Qian, Ye-Fan Chen et al. · 0 citations
#artificial intelligence Preprint Sep 2026

Predicting Collision Cross Sections with GRACE: Geometric Residual Adduct Conditioning via Early-fusion

GRACE (Geometric Residual Adduct Conditioning via Early-fusion), a 3D CCS predictor that adapts a pretrained molecular geometry encoder using geometric residual adduct conditioning via early fusion, is presented.

Parthasarathy Suryanarayanan, Susanta Das, Shreyans Sethi et al. · 0 citations
#machine learning Preprint Sep 2026

Sequence-Informed Geometric Evaluation of RNA 3D Structures

Computational RNA structure pipelines generate many candidate conformations for the same sequence. Reliable evaluation therefore requires more than recognising plausible geometry, it requires determining whether that geometry is compatible with the sequence. We introduce SIRGE, a sequence-informed geometric evaluator t...

Andrea Zerio, Yi-Song Yao, Alessandro Micheli et al. · 0 citations

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