Page 364 - Special Topic Session (STS) - Volume 4

STS1080 Karina G. et al.

solutions are sequentially included in the menu, and the
∗
corresponding are subtracted from the associated to the

nutritional plan. The plan is satisfied when card(S) is such that the −

∑ ∀∈ is minimum.

3. Reuse step. Implement the reuse step of CBR by adapting the
candidate solutions contained in to be presented to the end-
∗
user in form of complete menus for the period Ti.. Given the candidate
solutions , in general < . Adaptation will guarantee
∗

∑ ∀∈ = , by reducing or increasing the portion of last dishes in

the menu. Currently complete menus for Ti are presented in a Word
document that can be afterwards customized by the nutritionist. The
resulting document contains the list of dishes organized by days for
the whole Ti period, and sudvided by meals inside each day, according
to the Cultural style indicated. Additional information about the
portions (in gr) and the nutritional value of the meals is provided at
different levels of granularity.

3. Discussion and Conclusions
In this work, we have presented a global view of the Diet4you system
including the possibility of defining a nutritional plan at different levels of
granularity, managing personal food preferences of the person, as well as hard
restrictions able to manage allergies or health constraint according to medical
reasons (diabetes, cholesterol....), and the cultural dietary styles to manage
distribution of meals along the day by slicing nutritional prescription in sub-
plans, which are locally optimised by the PMP through conditional distribution
of nutrients fiven the meal of the day. While hard restrictions eliminate dishes
and ingredients from the search, the PMP component applies penalties or
bonifications for the probability of selecting or non-selecting preferences or
unpreferences declared by the person, such biasing the proposed final menu
towards personal preferences.

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