Detection of food intake from swallowing sequences by supervised and unsupervised methods.
Detection of food intake from swallowing sequences by supervised and unsupervised methods.
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DOI：
10.1007/s10439-010-0019-1
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发表时间：
2010-08
影响因子：
3.8
通讯作者：
Sazonov, Edward
中科院分区：
文献类型：
--
作者：
Lopez-Meyer, Paulo;Makeyev, Oleksandr;Schuckers, Stephanie;Melanson, Edward L.;Neuman, Michael R.;Sazonov, Edward
关键词：
对自由生活条件下的食物摄入量和摄食行为的研究大多依赖于基于自我报告的方法，这种方法可能非常不准确。消化行为监测方法(MIB)依赖于从咀嚼和吞咽序列中得出的客观测量，因此可以用于对自由生活条件下食物摄入量的无偏见研究。我们之前的研究表明，在简单的模型中，依靠观察咀嚼和吞咽，可以准确检测食物摄入量。本文研究了仅使用燕子的时间序列来实现食物摄入量检测的类似准确性的方法，从而消除了对咀嚼传感器的需要。分类是针对每一只燕子执行的，而不是针对先前使用的时间片，因此将在依赖燕子数量的质量预测模型中产生更高的精度。比较了基于监督方法(SVM)的群体模型和基于非监督方法(K-Means)的个体模型的性能，结果表明无监督的自适应方法具有更好的性能。总体而言，结果表明，通过一个仅依赖吞咽者提供的信息的无监督系统，可以高度准确地检测物理特性有很大不同的食物的摄入量。
Studies of food intake and ingestive behavior in free-living conditions most often rely on self-reporting-based methods that can be highly inaccurate. Methods of Monitoring of Ingestive Behavior (MIB) rely on objective measures derived from chewing and swallowing sequences and thus can be used for unbiased study of food intake with free-living conditions. Our previous study demonstrated accurate detection of food intake in simple models relying on observation of both chewing and swallowing. This article investigates methods that achieve comparable accuracy of food intake detection using only the time series of swallows and thus eliminating the need for the chewing sensor. The classification is performed for each individual swallow rather than for previously used time slices and thus will lead to higher accuracy in mass prediction models relying on counts of swallows. Performance of a group model based on a supervised method (SVM) is compared to performance of individual models based on an unsupervised method (K-means) with results indicating better performance of the unsupervised, self-adapting method. Overall, the results demonstrate that highly accurate detection of intake of foods with substantially different physical properties is possible by an unsupervised system that relies on the information provided by the swallowing alone.
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影响因子：
4.9
作者：
Poppitt, SD;Swann, D;Prentice, AM
通讯作者：
Prentice, AM
影响因子：
7.7
作者：
Day, NE;McKeown, N;Bingham, S
通讯作者：
Bingham, S
DOI：
10.1111/j.1365-277x.1989.tb00014.x
发表时间：
1989-01-01
影响因子：
3.3
作者：
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通讯作者：
COWARD W A
影响因子：
158.5
作者：
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通讯作者：
Ludwig, DS
影响因子：
7.5
作者：
Amft, Oliver;Troester, Gerhard
通讯作者：
Troester, Gerhard