This study investigates the utility of speech signals for AI-based depression
screening across varied interaction scenarios, including psychiatric
interviews, chatbot conversations, and text readings. Participants includes
depressed patients recruited from the outpatient clinics of Peking University
Sixth Hospital and control group members from the community, all diagnosed by
psychiatrists following standardized diagnostic protocols. We extracted
acoustic and deep speech features from each participant's segmented recordings.
Classifications were made using neural networks or SVMs, with aggregated clip
outcomes determining final assessments. Our analysis across interaction
scenarios, speech processing techniques, and feature types confirms speech as a
crucial marker for depression screening. Specifically, human-computer
interaction matches clinical interview efficacy, surpassing reading tasks.
Segment duration and quantity significantly affect model performance, with deep
speech features substantially outperforming traditional acoustic features.

通过对不同交互场景中的语音信号进行研究，包括精神科面谈、聊天机器人对话和文字朗读，本研究探究了语音信号在基于人工智能的抑郁症筛查中的实用性。利用从每个参与者的分割录音中提取的声学和深度语音特征，使用神经网络或支持向量机进行分类，并通过聚合的音频片段结果确定最终评估。分析结果表明，语音在抑郁症筛查中是一个关键的标志物，人机交互的效果与临床面谈相匹配，甚至优于阅读任务。片段时长和数量对模型性能有显著影响，而深度语音特征在表现上明显优于传统声学特征。

基于语音的临床抑郁症筛查：实证研究

Speech-based Clinical Depression Screening: An Empirical Study

Hand motion capture is a popular research field, recently gaining more
attention due to the ubiquity of RGB-D sensors. However, even most recent
approaches focus on the case of a single isolated hand. In this work, we focus
on hands that interact with other hands or objects and present a framework that
successfully captures motion in such interaction scenarios for both rigid and
articulated objects. Our framework combines a generative model with
discriminatively trained salient points to achieve a low tracking error and
with collision detection and physics simulation to achieve physically plausible
estimates even in case of occlusions and missing visual data. Since all
components are unified in a single objective function which is almost
everywhere differentiable, it can be optimized with standard optimization
techniques. Our approach works for monocular RGB-D sequences as well as setups
with multiple synchronized RGB cameras. For a qualitative and quantitative
evaluation, we captured 29 sequences with a large variety of interactions and
up to 150 degrees of freedom.

这篇文章提出了一种手势捕捉框架，其结合了生成模型和歧视性训练显著点，以实现对物体和其他手势之间互动场景的精确捕捉，并使用碰撞检测和物理模拟实现了在遮挡和缺失数据情况下的准确估计，能适用于单目 RGB-D 序列和同步多 RGB 摄像头的设置。