Fuzzy clustering of vitamin and homocysteine levels in patients with history of ischemic stroke

Julie A. Dickerson, Reuben Matalon, Cathy Helgason

Research output: Chapter in Book/Report/Conference proceedingConference contribution

3 Scopus citations

Abstract

Vitamin, metabolite, and homocysteine levels were measured in 166 patients with a history of ischemic stroke. An interactive relationship between vitamin, metabolite, and homocysteine levels was sought. The data analysis used the fuzzy c-means algorithm and fuzzy conditional clustering. The number of clusters in each case was determined by the Xie-Beni Index. In conditional fuzzy clustering, the data was clustered based on the membership value of one of the sets. Different combinations of vitamins, homocysteine, and cysthionine levels were tested. While many patients had low levels of vitamins or high homocysteine, these did not correlate in all instances. Normal vitamin levels were associated with normal homocysteine levels. Homocysteine levels did not appear to depend on vitamin levels alone. Other factors such as vitamin receptor abnormalities may dictate individual needs and ultimately play a role in the interaction between vitamin levels and homocysteine.

Original languageEnglish (US)
Title of host publication1998 Conference of the North American Fuzzy Information Processing Society, NAFIPS 1998
EditorsLawrence O. Hall, Jim Bezdek
PublisherInstitute of Electrical and Electronics Engineers Inc.
Pages231-236
Number of pages6
ISBN (Electronic)0780344537
DOIs
StatePublished - Jan 1 1998
Event1998 Conference of the North American Fuzzy Information Processing Society, NAFIPS 1998 - Pensacola Beach, United States
Duration: Aug 20 1998Aug 21 1998

Publication series

NameAnnual Conference of the North American Fuzzy Information Processing Society - NAFIPS

Other

Other1998 Conference of the North American Fuzzy Information Processing Society, NAFIPS 1998
CountryUnited States
CityPensacola Beach
Period8/20/988/21/98

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ASJC Scopus subject areas

  • Computer Science(all)
  • Mathematics(all)

Cite this

Dickerson, J. A., Matalon, R., & Helgason, C. (1998). Fuzzy clustering of vitamin and homocysteine levels in patients with history of ischemic stroke. In L. O. Hall, & J. Bezdek (Eds.), 1998 Conference of the North American Fuzzy Information Processing Society, NAFIPS 1998 (pp. 231-236). (Annual Conference of the North American Fuzzy Information Processing Society - NAFIPS). Institute of Electrical and Electronics Engineers Inc.. https://doi.org/10.1109/NAFIPS.1998.715571