7 results match your criteria: "Sichuan Institute of Computer Sciences[Affiliation]"

Low-resolution images present significant challenges for age estimation in real-world. Current models are unsuitable for low-resolution scenarios as they lose crucial details and weaken feature representations, leading to significant performance degradation. To address the limitation, we propose the Multi-Grained Pooling Network (MGP-Net), a novel architecture that effectively captures multi-grained information during the downsampling process, preserving essential features for age estimation.

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Accurately predicting cancer driver genes remains a formidable challenge amidst the burgeoning volume and intricacy of cancer genomic data. In this investigation, we propose HGTDG, an innovative heterogeneous graph transformer framework tailored for precisely predicting cancer driver genes and exploring downstream tasks. A heterogeneous graph construction module is central to the framework, which assembles a gene-protein heterogeneous network leveraging the Kyoto Encyclopedia of Genes and Genomes (KEGG) pathways and protein-protein interactions sourced from the STRING (search tool for recurring instances of neighboring genes) database.

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Cortical morphological changes and associated transcriptional signatures in post-traumatic stress disorder and psychological resilience.

BMC Med

October 2024

Mental Health Center and Psychiatric Laboratory, the State Key Laboratory of Biotherapy, West China Hospital of Sichuan University, 610041, Chengdu, People's Republic of China.

Article Synopsis
  • Individuals who have experienced severe trauma can develop PTSD, with prevalence rates varying from 10 to 50%, while some unaffected people show psychological resilience; this study investigates the brain network changes and gene expression related to these conditions.
  • The research involved PTSD patients, trauma-exposed healthy individuals (TEHI), and healthy controls, analyzing their brain networks and gene expression patterns using advanced neuroimaging techniques.
  • Results indicated that TEHI exhibited both PTSD-like brain changes and unique neurobiological adaptations, revealing a complex interplay of gene expression and resilience mechanisms in response to trauma.
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Functional connectome gradient predicts clinical symptoms of chronic insomnia disorder.

Prog Neuropsychopharmacol Biol Psychiatry

December 2024

Department of Neurology, Chengdu Second People's Hospital, Chengdu, China. Electronic address:

Insomnia is the second most prevalent psychiatric disorder worldwide, but the understanding of the pathophysiology of insomnia remains fragmented. In this study, we calculated the connectome gradient in 50 chronic insomnia disorder (CID) patients and 38 healthy controls (HC) to assess changes due to insomnia and utilized these gradients in a connectome-based predictive modeling (CPM) to predict clinical symptoms associated with insomnia. The results suggested that insomnia led to significant alterations in the functional gradients of some brain areas.

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Predicting the transcription factor binding site (TFBS) in the whole genome range is essential in exploring the rule of gene transcription control. Although many deep learning methods to predict TFBS have been proposed, predicting TFBS using single-cell ATAC-seq data and embedding attention mechanisms needs to be improved. To this end, we present IscPAM, an interpretable method based on deep learning with an attention mechanism to predict single-cell transcription factors.

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Background And Objective: Multiple Sequence Alignment (MSA) is an essential procedure in the sequence analysis of biological macromolecules, which can obtain the potential information between multiple sequences, such as functional and structural information. At present, the main challenge of MSA is an NP-complete problem; the algorithm's complexity increases exponentially with the increase of the number of sequences. Some methods are constantly approaching the results towards the optimal ratio and easy to fall into the local optimization, so the accuracy of these methods is still greatly improved.

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Imbalanced data classification is the fundamental problem of data mining. Relevant researchers have proposed many solutions to solve the problem, such as sampling and ensemble learning methods. However, random under-sampling is easy to lose representative samples, and ensemble learning does not use the correlation information between pieces in the data set.

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