Transcript Problem

ICT to combat
nutrition problems?
Barbara Koroušić Seljak
TTC’09
Problem: Overweight
Responsible for:
• 10-13% of deaths in
different parts of the WHO
European Region
• 2-8% of health costs
A strong risk factor
for most prominent
chronic diseases
(CDs):
• Today, 60% of all deaths are
due to CDs.
• By 2020, the contribution of
CDs is expected to rise to
73% of all deaths.
TTC’09
Paradox: Undernutrition
One in three patients in general European
hospitals is malnourished!
• Reason: Inadequate diet lacking in certain
macro- and micronutrients
• Consequences: Higher complication rates
(approx. 50% increase in length of stay and
costs)
TTC’09
Measures to combat malnutrition
Clinical nutrition:
•
Nutritional screening & assessment in hospitals
and nursing homes
• Artificial nutrition as medical therapy:
•
•
Very expensive
Beyond reach
enteral & parenteral
nutrition
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nutritional
supplements
Our idea
Web application for planning meals
with no or minimal
artificial nutrition!
TTC’09
Meal planning is an NP-complete
problem
Many objectives:
• low cost, high seasonal and
high gastronomical quality
Many personal
constraints that may be
mutually exclusive:
•
•
•
•
multimodal search space
Energy
Nutrients
Ratio of certain nutrients
Ratio of certain fatty &
amino acids
• Non-nutrients (ORAC)
• Food pyramid
TTC’09
Meal planning is an NP-complete
problem
Many objectives:
• low cost, high seasonal and
high gastronomical quality
Many personal
constraints that may be
mutually exclusive:
•
•
•
•
multimodal search space
Energy
Nutrients
Ratio of certain nutrients
Ratio of certain fatty &
amino acids
• Non-nutrients (ORAC)
• Food pyramid
TTC’09
Proposed solution
Problem translation to Evolutionary
computation
+ linear
a knapsack problem:
programming for local
optimization
• CO problem: Given foods
of different values and
volumes, the MFKP is to
find the most valuable
combination of foods that
fits in a knapsack of fixed
volumes!
chromosome
Daily meal 1
Meal 1
Food 1
Food code
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…
…
Food portion
…
Meal n
Food m
Daily meal d
Performed research steps
1.
Application & publication
in the national guidelines
and recommendations
Publication in a peerreviewed journal
Cooperative research
project for SME
Presentation to an
international group of
experts (EuroFIR, ESPEN):
2.
3.
4.
–
FP7 project proposal
TTC’09
First extension
Personalized nutrition
scale
Web application for
meal planning
Performed steps:
• Presentation given to a
group of diabetes experts
who supported the idea
• The Slovene patent (SI
22693 A)
Looking for an
industrial partner!
TTC’09
Second extension
Mobile application for
informing consumers
about nutritional value
of food items:
Web application for
meal planning
Performed steps:
• National research
project
Looking for a mobile
operater and
insurance company!
TTC’09
Third extension
Food & physical
activity diary for data
mining and knowledge
discovery
Performed steps:
• Bilateral project
• Dietary knowledge
ontology
Web application for
meal planning
TTC’09
Steps & decisions to be done
Related mandatory activities:
•
•
•
•
Up-to-date food composition data & reference values
Research work
Permanent education and training
Human-experts as active participants in the social
network
TTC’09
Steps & decisions to be done
Related mandatory activities:
•
•
•
•
Up-to-date food composition data & reference values
Research work
Permanent education and training
Human-experts as active participants in the social
network
Solution: An institute or a company
establisment?
TTC’09
Steps & decisions to be done
Related mandatory activities:
•
•
•
•
Up-to-date food composition data & reference values
Research work
Permanent education and training
Human-experts as active participants in the social
network
Solution: An institute or a company
establisment?
TTC’09
Thank you for hearing me out!
TTC’09