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ICT to combat nutrition problems? Barbara Koroušić Seljak. 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 . - PowerPoint PPT Presentation
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TTC’09
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 nutritional
supplements
TTC’09
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:
• Energy• Nutrients• Ratio of certain nutrients• Ratio of certain fatty &
amino acids• Non-nutrients (ORAC)• Food pyramid
multimodal search space
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:
• Energy• Nutrients• Ratio of certain nutrients• Ratio of certain fatty &
amino acids• Non-nutrients (ORAC)• Food pyramid
multimodal search space
It is expected that NO algorithm can be both
correct and fast (polynomial-time) on all cases!
TTC’09
Proposed solution
Problem translation to a knapsack problem:
• 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!
Evolutionary computation + linear programming for local optimization
Daily meal 1 … Daily meal d
Meal 1 … Meal n
Food 1 … Food m
Food code Food portion
chromosome
TTC’09
Performed research steps
1. Application & publication in the national guidelines and recommendations
2. Publication in a peer-reviewed journal
3. Cooperative research project for SME
4. Presentation to an international group of experts (EuroFIR, ESPEN):
– FP7 project proposal
TTC’09
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!
First extension
Personalized nutrition scale
Web application for meal planning
TTC’09
Second extension
Mobile application for informing consumers about nutritional value of food items:
Performed steps:• National research
project
Looking for a mobile operater and insurance company!
Web application for meal planning
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!