一个基于注意力机制和深度强化学习的图像标题模型
Tong Bai1, Sen Zhou2, Yu Pang1
1School of Optoelectronic Engineering, Chongqing University of Posts and Telecommunications, Chongqing, China.
Frontiers in neuroscience
|October 23, 2023
概括
本研究介绍了一种用于图像标题的新型指导解码网络,增强视觉信息处理和描述生成. 改进的模型在标准数据集和评估指标上实现了更好的性能.
科学领域:
- 计算机视觉 计算机视觉
- 人工智能的人工智能
- 自然语言处理自然语言处理.
背景情况:
- 图像标题技术将视觉特征转换为语义信息,用于分类和检索等任务.
- 深度神经网络和编码解码架构已经推进了图像标题,但视觉信息丢失等挑战仍然存在.
研究的目的:
- 提出一种解决视觉信息丢失和图像标题的非动态调整的新方法.
- 为了增强生成的图像描述的细节和语义丰富性.
主要方法:
- 一个指导解码网络连接编码和解码进行动态调整.
- 使用密集卷积网络 (DenseNet) 和多实例学习 (MIL) 来进行图像编码.
- 采用嵌套长期短期内存 (NLSTM) 作为解码器.
- 整合了注意力机制和双层解码结构.
- 使用深度强化学习 (DRL) 训练模型以优化评估指标.
主要成果:
- 与现有方法相比,拟议的模型显示了更好的性能.
- 提升了提取和解析图像信息的能力.
- 生成更详细的描述,具有更丰富的语义信息.
- 在MS COCO和Flickr 30k数据集上成功培训和测试.
结论:
- 新型指导解码网络有效地解决了视觉信息丢失问题,并改善了图像标题.
- 集成DenseNet,MIL,NLSTM,attention和DLR,可以实现卓越的性能.
- 该模型显示了BLEU,METEOR和CIDEr评估指标的显著改进.
相关概念视频
01:14Steps in the Modeling Process
217
Albert Bandura's theory of observational learning identifies four critical processes: attention, retention, motor reproduction, and reinforcement or motivation.
Attention is the first necessary component for observational learning. It involves focusing on what the model is doing and saying. For example, if you decide to take a drawing class to enhance your skills, you need to pay close attention to the instructor's words and hand movements. The characteristics of the model significantly...
Attention is the first necessary component for observational learning. It involves focusing on what the model is doing and saying. For example, if you decide to take a drawing class to enhance your skills, you need to pay close attention to the instructor's words and hand movements. The characteristics of the model significantly...
217
01:12Observational Learning
188
Albert Bandura's observational learning, also known as imitation or modeling, occurs when a person observes and imitates another's behavior. It is a quicker process than operant conditioning. A well-known example is the Bobo doll study, where children who saw an adult acting aggressively towards the doll were more likely to act aggressively when left alone, compared to those who observed a nonaggressive adult. Many psychologists view observational learning as a form of latent learning...
188