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Table 1 Classification features. Features associated to a candidate and used by the classifiers to identify a Meal

From: Data-driven meal events detection using blood glucose response patterns

Feature

Description

Unit

Blood Glucose (BG)

BG value from CGM

mg/dl

BG derivative

Estimated derivative of the BG value

mg/dl/min

Elapsed Hours

Amount of hours passed since 00:00 of the data point’s timestamp day

hours

Response Min

Minimum BG value within the subsequence starting from the data point

mg/dl

Response Minutes to Min

Number of minutes needed to go from the start of the subsequence to its minimum value

minutes

Response Derivative to Min

BG/minutes rate from the start of the subsequence to its minimum value

 

Response Max

Maximum BG value within the subsequence starting from the data point

mg/dl

Response Minutes to Max

Number of minutes needed to go from the start of the subsequence to its maximum value

minutes

Response Derivative to Max

BG/minutes rate from the start of the subsequence to its maximum value

 

Meala

Flag set if response is associated with an existing logged meal

{0,1}

  1. aThis flag represents the binary Meal, Non-Meal classes, and only exists in candidates used for the training phase