Page 361 - Special Topic Session (STS) - Volume 4

STS1080 Karina G. et al.

• History of Nutritional Plans, which contains a case base made of all the
personalized nutritional plans generated by the system in past
experiences and feed the CBR that builds the nutritional plans. The
nutritional plan may be accompanied by the nutritionist’s evaluation
of the outcome observed in past applications of the plan
• Characteristics of the person who wants to follow a nutritional plan.
This means standard information of the health status of the person
including biometrics and biochemical characteristics. Also, drugs
intakes, medical history including current, past, and risk factors.
Context data such as socio-demographic and habits such as tobacco,
alcohol, physical exercise and diet. It can include genetic information
when available.
With all these inputs the NPG provides a recommended nutritional plan
for a given person to be followed along a certain period.
2. Personalized Menu Planner (PMP). Given a nutritional plan, either
coming from the previous subsystem or directly provided by a
nutritionist, this subsystem search on food databases for the menus
better combining to fit the target nutritional plan. The result is a
personalized menu for a given period of time. In Diet4You project, this
system is also based on CBR. The system retrieves and adapts dishes
to be included in the menu until it is considered that the plan is
satisfied. This subsystem includes several components as well:
• Cultural styles: Is a knowledge-based component that can manage the
different cultural eating styles regarding how meals distribute along
day (Mediterranean, British, ...)
• Restrictions: Is a knowledge-based component that permits
nutritionists to express nutritional restrictions (like no sugars for
diabetic patients), specific allergies of the person that cannot be
included in the proposal of dishes of the recommended nutritional
plan
• Preferences: Including user limitations based on personal criteria that
will be taken into account as far as possible, trying to avoid proposed
menus containing the ingredients excluded by the user.

Thus, the Diet4You system is composed of two subsystems NPG and PMP
both combined to give the person guidelines on how to eat for a certain
period of time to achieve certain given goals (reduce cholesterol, feed better,
improve healthy lifestyle, etc.).

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