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dc.contributor.advisorSkubic, Marjorieeng
dc.contributor.authorWang, Shuang, 1978-eng
dc.date.issued2007eng
dc.date.submitted2007 Springeng
dc.descriptionThe entire dissertation/thesis text is included in the research.pdf file; the official abstract appears in the short.pdf file (which also appears in the research.pdf); a non-technical general description, or public abstract, appears in the public.pdf file.eng
dc.descriptionTitle from title screen of research.pdf file (viewed on November 6, 2007)eng
dc.descriptionIncludes bibliographical references.eng
dc.descriptionThesis (M.S.) University of Missouri-Columbia 2007.eng
dc.descriptionDissertations, Academic -- University of Missouri--Columbia -- Electrical engineering.eng
dc.description.abstractThis thesis describes the application of fuzzy logic to the Short Physical Performance Battery (SPPB) test, a series of timed physical activities that have been created to evaluate, physical functional performance for both research and clinical purposes, primarily for physically impaired older adults. The original scoring system of the SPPB test uses crisp time boundaries to assign the subject to discrete classes of performance. The crisp nature of the crisp thresholds can easily produce anomalies. Fuzzy Logic theory allows the natural description, in linguistic terms, of input/output relationships rather than relying on precise numerical threshold values. This advantage, dealing with complicated systems in a simple way, is the main reason why fuzzy logic theory is widely applied. This thesis offers a new approach for scoring the SPPB test. It demonstrates that in the proposed system, the Fuzzy Short Physical Performance Battery (FSPPB), the sensitivity and data distribution of the scoring system for the SPPB test can be improved. This thesis presents the procedures of constructing a fuzzy inference system using fuzzy logic to score the SPPB test. It also presents the procedures of constructing a fuzzy inference system using Adaptive Neuro-Fuzzy Inference System (ANFIS) technology and a tuning system for the fuzzy SPPB test using Particle Swarm Optimization (PSO). As part of a large project in technology for Eldercare, the goal is to accurately measure trends in physical performance of seniors over time.eng
dc.identifier.merlinb61263977eng
dc.identifier.oclc180773259eng
dc.identifier.urihttps://hdl.handle.net/10355/4984
dc.identifier.urihttps://doi.org/10.32469/10355/4984eng
dc.languageEnglisheng
dc.publisherUniversity of Missouri--Columbiaeng
dc.relation.ispartofcommunityUniversity of Missouri-Columbia. Graduate School. Theses and Dissertations. Theses. 2007 Theseseng
dc.subject.lcshFuzzy logiceng
dc.subject.lcshOlder people -- Functional assessmenteng
dc.subject.lcshOlder people with disabilitieseng
dc.titleFuzzified scoring of the functional assessment instrumenteng
dc.typeThesiseng
thesis.degree.disciplineElectrical engineering (MU)eng
thesis.degree.grantorUniversity of Missouri--Columbiaeng
thesis.degree.levelMasterseng
thesis.degree.nameM.S.eng


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