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相关概念视频

Reinforcement01:23

Reinforcement

204
Positive and negative reinforcement are key concepts in operant conditioning, a learning process where the consequences of a behavior affect the likelihood of that behavior being repeated.
Positive reinforcement occurs when a behavior is followed by the presentation of a rewarding stimulus, increasing the frequency of that behavior. For example:
204
Observational Learning01:12

Observational Learning

170
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...
170
Social Proof00:52

Social Proof

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Social proof is a form of persuasion based on comparison and conformity. People compare their behavior and actions to what others are doing and will change to conform to do what their peers do.
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Reinforcement Schedules01:24

Reinforcement Schedules

144
Positive reinforcement is a powerful method for teaching new behaviors to both animals and humans. B.F. Skinner demonstrated this with his experiments using rats in a Skinner box. When a rat pressed a lever, it received a food pellet. This immediate reward encouraged the rat to repeat the behavior. This method, where a reward follows every instance of the behavior, is known as continuous reinforcement. It is highly effective for establishing new behaviors quickly.
Once a behavior is learned,...
144
Social Exchange Theory02:06

Social Exchange Theory

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We have discussed why we form relationships, what attracts us to others, and different types of love. But what determines whether we are satisfied with and stay in a relationship? One theory that provides an explanation is social exchange theory. According to social exchange theory, we act as naïve economists in keeping a tally of the ratio of costs and benefits of forming and maintaining a relationship with others (Rusbult & Van Lange, 2003).
34.5K
Associative Learning01:27

Associative Learning

353
Associative learning is a fundamental concept in behavioral psychology, wherein a connection is established between two stimuli or events, leading to a learned response. This process is critical in understanding how behaviors are acquired and modified. Conditioning, the mechanism through which associations are formed, can be divided into two main types: classical conditioning and operant conditioning, each elucidating different aspects of associative learning.
Classical conditioning, also known...
353

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一个基于深度强化学习的社会形象推系统.

Somaye Ahmadkhani1, Mohsen Ebrahimi Moghaddam1

  • 1Shahid Beheshti University, Faculty of Computer Science and Engineering, Tehran, Iran.

PloS one
|April 4, 2024
PubMed
概括

这项研究引入了一种使用深度强化学习 (DRL) 和情感和风格等新特性的动态图像推系统. 该系统通过适应用户偏好,显著改善了个性化的图像建议.

科学领域:

  • 计算机科学 计算机科学
  • 人工智能的人工智能
  • 信息检索 信息检索

背景情况:

  • 信息过载是一个日益严重的问题,原因是大量的动态在线内容.
  • 推系统有助于通过分析用户行为来预测兴趣来减轻信息过载.
  • 现有的社交形象推系统经常使用静态策略,无法适应不断变化的用户偏好.

研究的目的:

  • 开发一个动态的社会形象推系统,适应不断变化的用户偏好.
  • 通过结合新的特征,如情绪,风格和个性来增强个性化的推.
  • 应对国家代表在推系统的强化学习方面的挑战.

主要方法:

  • 一个深度强化学习 (DRL) 框架用于动态图像推.
  • 包括用户情绪,风格和个性在内的新奇特征被整合起来,以创建一个特征向量.
  • 引入了一种新的状态表示方法,以克服强化学习状态定义的局限性.

主要成果:

  • 拟议的动态推系统显著提高了个性化图像推的性能.
  • 实验结果显示,与相关作品相比,Recall@k和Precision@k (前100张图像) 的增长率大约为7%-10%.
  • 纳入新的特征和国家代表性提高了建议准确性.

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结论:

  • 开发的动态图像推系统有效地解决了静态方法的局限性.
  • 具有增强功能的DRL框架提供了更个性化和适应性的推体验.
  • 这项研究在个性化社会形象推领域取得了重大进展.