对ChatGPT进行评估,用于从餐食照片中估计营养含量
Cathal O'Hara1, Gráinne Kent1, Angela C Flynn1
1School of Population Health, Royal College of Surgeons in Ireland (RCSI), D02 YN77 Dublin, Ireland.
Nutrients
|February 26, 2025
概括
聊天GPT准确地识别了餐点照片中的食物,但很难估计更大的部分的重量和精确的营养成分含量. 需要进一步的研究来改善人工智能.
科学领域:
- 人工智能的人工智能
- 营养科学 营养科学
- 饮食评估 饮食评估
背景情况:
- 人工智能中的大型语言和视觉模型为饮食评估提供了新的可能性.
- 人工智能,特别是ChatGPT-4的准确性存在有限的评估,用于使用餐食图像进行营养分析.
研究的目的:
- 评估ChatGPT-4在识别食品,估计食重量和从照片中确定营养含量方面的准确性.
- 将ChatGPT-4的性能与实际的食值和专家饮食师的评估进行比较.
主要方法:
- 通过ChatGPT-4分析了来自国家饮食调查的114张食照片.
- 聊天GPT-4确定了食物,估计了体重,并计算了16种营养素.
- 统计分析包括精度,配对t测试,威尔科克森签名等级测试,百分比差异和斯皮尔曼相关性.
- 营养学家评估能量,蛋白质和碳水化合物含量进行比较,使用类内相关性.
主要成果:
- 聊天GPT-4在食品识别方面实现了93.0%的精度.
- 对于小餐量来说是很好的协议,但对于中大餐来说是很糟糕的协议.
- 对16种营养素中的10种营养素达成不良协议,对11种营养素的估计明显低估.
- 对于营养含量排名而言,足够与良好的相关性 (r_s:0.290.83).
- 类内相关性 (0.310.67) 表明ChatGPT-4和营养学家之间存在中度一致.
结论:
- 聊天GPT-4在食品识别和按营养含量排列食物方面表现出色.
- 该模型显示,在准确估计中等到大份量的重量方面存在局限性.
- 目前的AI性能不足以准确估计饮食评估中的营养含量.
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