Primjena neizrazite logike u dijetoterapiji - prednosti primjene

undergraduate thesis

• Title (english): Use of fuzzy logic approach in Diet therapy - advantage of its use
• Author: Marina Coce
• Mentor: Jasenka Gajdoš Kljusurić (mentor)
• Granter: University of Zagreb; Faculty of Food Technology and Biotechnology; (Department of Process Engineering); (Laboratory for Measurement, Regulation and Automatisation); Zagreb
• Defense date and country: 2012-06-13, Croatia
• Scientific / art field, discipline and subdiscipline: BIOTECHNICAL SCIENCES; Nutrition

Abstract

Neizrazita logika je dio teorije umjetne inteligencije te koristi niz neizrazitih varijabli koje su definirane funkcijama pripadnosti i izvedbenim pravilima. U ovom radu neizrazita logika je ciljano korištena za planiranje dnevnih jelovnika prema smjernicama DASH dijete kako bi se odredila adekvatnost zasebnih dnevnih kombinacija (jela/jelovnika) koje su nutritivno prihvatljive. Neizrazitost je dekodirana u izrazitu vrijednost pomoću Prerow značajke (PV vrijednosti) pomoću koje se provodi defuzifikacija, kojom se procjenjuje energetska i nutritivna prihvatljivost ponude. Rezultati analize jelovnika su pokazali kako sve dnevne kombinacije nisu postigle poželjnu PV vrijednost od minimalno 0,7, što je granica prihvaćanja dnevne ponude. Rezultat optimiranja, primjenom neizrazite logike, je skup kombinacija čiji je PV>0,7 (65 % prihvatljivih kombinacija), dok 35 % kombinacije treba izbjegavati zbog neadekvatnog nutritivnog unosa. Rezultati rada pokazuju korisnost primjene neizrazite logike u analizi i/ili planiranju nutiritivnog unosa te također može biti korišten u edukativne svrhe u borbi s pretilošću.

Abstract (english)

Fuzzy logic is a part of mathematical theories of artificial intelligence and uses a collection of fuzzy variables defined by membership functions and inference rules. In this paper, fuzzy logic was used to plan daily menus according to the guidelines of the DASH diet in order to determine the adequacy of daily meals and determine which daily meals are nutritionally acceptable. Fuzziness was decoded using Prerow value (PV), which assesses the acceptability or unacceptability of a menu offer. Analysis results show that not all combination have reached the limit value of PV>0.7, what was an indicator of acceptance of a daily offer. The final result of the implemented optimisation was a set of daily menus, of which 65 % are nutritional acceptable. The main conclusion is that the application of fuzzy logic, intended for menu analysis and / or menu planning is a powerful tool and could be used as education tool in the efforts to overcome obesity.

• Keywords: neizrazita logika; funkcije pripadnosti; DASH dijeta; PV vrijednost
• Keywords (english): fuzzy logic; membership function; DASH diet; PV value
• Language: croatian
• URN:NBN: urn:nbn:hr:159:437409
• Study programme: Title: Nutrition; Study programme type: university; Study level: undergraduate; Academic / professional title: sveučilišni/a prvostupnik/prvostupnica (baccalaureus/baccalaurea) nutricionizma (sveučilišni/a prvostupnik/prvostupnica (baccalaureus/baccalaurea) nutricionizma)
• Type of resource: Text
• File origin: Born digital
• Access conditions: Access restricted to students and staff of home institution
• Created on: 2017-05-15 10:49:45