相关实验视频
Updated: Feb 7, 2026

13:19
Deep Neural Networks for Image-Based Dietary Assessment
Published on: March 13, 2021
10.0K
通过基于深度神经网络的Cox模型集成Omics和病理成像数据用于癌症预后.
1Department of Biostatistics, Yale School of Public Health, New Haven, Connecticut, USA.
Statistics in medicine
|February 5, 2026
概括
整合omics和病理成像数据可以改善癌症预后建模. 这种新的方法使用了对OMICs的参数建模和对成像的深度神经网络,增强了变量选择和预测准确性.
科学领域:
- 在瘤学瘤学.
- 生物信息学是一种生物信息学.
- 医疗成像医学成像
背景情况:
- 预后建模在癌症研究中至关重要.
- 奥米克斯数据和病理成像数据为癌症预后提供了补充信息.
研究的目的:
- 在Cox建模框架中整合OMIC和病理成像数据.
- 为不同的数据类型利用参数和非参数方法的优势.
主要方法:
- 对omics变量进行参数建模 (解释性).
- 使用深度神经网络 (DNN) 对病理成像特征 (灵活性和预测) 的非参数建模.
- 在高维数据中对变量选择和估计的处罚的应用.
主要成果:
- 证明了合理的变量选择.
- 在TCGA数据上实现了卓越的预测性能.
- 强调了整合来自两种数据类型的重叠信息的实用性.
结论:
- 拟议的综合方法为癌症预后提供了实际的实用性.
- 组合omics和成像数据可以提高预测准确度.
- 灵活的建模策略能够有效地适应不同的数据属性.
相关概念视频
Protein Networks
4.6K
An organism can have thousands of different proteins, and these proteins must cooperate to ensure the health of an organism. Proteins bind to other proteins and form complexes to carry out their functions. Many proteins interact with multiple other proteins creating a complex network of protein interactions.
These interactions can be represented through maps depicting protein-protein interaction networks, represented as nodes and edges. Nodes are circles that are representative of a protein,...
These interactions can be represented through maps depicting protein-protein interaction networks, represented as nodes and edges. Nodes are circles that are representative of a protein,...
4.6K
The Mantel-Cox Log-Rank Test
1.1K
The Mantel-Cox log-rank test is a widely used statistical method for comparing the survival distributions of two groups. It tests whether a statistically significant difference exists in survival times between the groups without assuming a specific distribution for the survival data, making it a non-parametric test. This flexibility makes the log-rank test particularly valuable in medical research and other fields where the timing of an event, such as death or disease recurrence, is of...
1.1K
Growth Models with Integration: Problem Solving
61
In population modeling, integration provides a systematic way to determine accumulated quantities from known rates of change. One such application arises in ecology, where the total weight of a fish population in a body of water is referred to as its biomass. When the rate of growth of this biomass is known as a function of time, calculus can be used to determine the total biomass at a future date.Growth Rate and Biomass FunctionLet the growth rate of the fish population be represented by a...
61
Network Covalent Solids
16.2K
Network covalent solids contain a three-dimensional network of covalently bonded atoms as found in the crystal structures of nonmetals like diamond, graphite, silicon, and some covalent compounds, such as silicon dioxide (sand) and silicon carbide (carborundum, the abrasive on sandpaper). Many minerals have networks of covalent bonds.
To break or to melt a covalent network solid, covalent bonds must be broken. Because covalent bonds are relatively strong, covalent network solids are typically...
To break or to melt a covalent network solid, covalent bonds must be broken. Because covalent bonds are relatively strong, covalent network solids are typically...
16.2K
Model Approaches for Pharmacokinetic Data: Physiological Models
279
Physiological models in pharmacokinetics are instrumental in understanding the distribution and elimination of drugs within the body. These models describe the drug concentration within target organs, influenced by factors such as drug uptake, tissue volume, and blood flow. Drug uptake is governed by the partition coefficient, which signifies the drug concentration ratio in tissue to that in the blood. The blood flow rate to a specific tissue is expressed as Qt, and the rate of change in tissue...
279
Model Approaches for Pharmacokinetic Data: Compartment Models
570
Compartmental analysis is a widely adopted approach to characterizing drug pharmacokinetics. It uses compartment models that conceptualize the body as a collection of reversibly communicating compartments, each representing a group of tissues exhibiting similar drug distribution characteristics. The movement rate of the drug between these compartments is typically described by first-order kinetics.
Two primary types of compartment models are recognized: mammillary and catenary. The more...
Two primary types of compartment models are recognized: mammillary and catenary. The more...
570

