在语音中识别情绪的特征选择:对波器和包装方法的比较研究
Alaa Altheneyan1, Aseel Alhadlaq1
1Department of Computer Science and Engineering, College of Applied Studies, King Saud University, Riyadh, Saudi Arabia.
PeerJ. Computer science
|September 24, 2025
概括
像相互信息 (MI) 这样的特征选择方法显著改善了语音情感识别模型. 通过选择最佳特征,提高准确性和降低模型复杂性,MI实现了最高的性能.
科学领域:
- 语言 情感 识别 语言
- 机器学习 机器学习
- 信号处理 信号处理
背景情况:
- 功能选择对于优化语音情绪识别 (SER) 模型至关重要.
- 复杂性和无关紧要的数据可能会阻碍SER模型的性能.
- 评估特征选择方法是推动SER的关键.
研究的目的:
- 评估基于相关性 (CB),相互信息 (MI) 和递归特征消除 (RFE) 的 SER.
- 将这些方法与使用各种特征集的基线方法进行比较.
- 为了确定特征选择对SER模型性能指标的影响.
主要方法:
- 使用了三个特征集:所有170个特征,一个163个特征子集和一个157个特征子集.
- 应用CB,MI和RFE的特征选择技术.
- 基于准确性,精度,回忆和F1分数的比较方法.
主要成果:
- 使用所有特征产生了61.42%的准确性,通常与无关的数据.
- 120个特征的MI实现了最高的性能 (65%精度,回忆,F1得分,精度64.71%).
- CB方法提供了简单性和准确性的良好平衡;RFE改进了更多功能.
结论:
- 相互信息 (MI) 是一种非常有效的 SER 功能选择方法.
- 通过选择优化功能集可以提高SER模型的性能.
- 特性选择平衡模型复杂性和识别准确性.
相关概念视频
Labeling Emotion
601
Emotional labeling is a cognitive process that involves identifying and naming one's emotions, such as anger, fear, happiness, or sadness. It allows individuals to recognize and express their internal emotional states, a critical aspect of emotional regulation and communication. Labeling emotions requires more than mere recognition; it also involves drawing upon memory and contextual cues to understand the current situation and apply a corresponding emotional label. For instance, feeling...
601
Classification of Signals
1.3K
In signal processing, signals are classified based on various characteristics: continuous-time versus discrete-time, periodic versus aperiodic, analog versus digital, and causal versus noncausal. Each category highlights distinct properties crucial for understanding and manipulating signals.
A continuous-time signal holds a value at every instant in time, representing information seamlessly. In contrast, a discrete-time signal holds values only at specific moments, often denoted as x(n), where...
A continuous-time signal holds a value at every instant in time, representing information seamlessly. In contrast, a discrete-time signal holds values only at specific moments, often denoted as x(n), where...
1.3K
Coping Strategies: Emotion Focused
435
Emotion-focused coping refers to a set of strategies aimed at managing the emotional impact of stressors, rather than directly addressing their causes. This approach involves altering one's emotional response to stressful situations to reduce their psychological effects. For example, individuals might talk with a friend or engage in activities like journaling to express their feelings. Such actions can help achieve emotional clarity or release, providing the psychological stability needed...
435
Extraction: Advanced Methods
1.1K
Metal ions can be separated from one another by complexation with organic ligands–the chelating agent– to form uncharged chelates. Here, the chelating agent must contain hydrophobic groups and behave as a weak acid, losing a proton to bind with the metal. Since most organic ligands used in this process are insoluble or undergo oxidation in the aqueous phase, the chelating agent is initially added to the organic phase and extracted into the aqueous phase. The metal-ligand complex is...
1.1K


