Application of artificial intelligence, machine learning and visualization to big data to reduce health disparities

Seminar Date: 
2022-01-14
Seminar Time: 
11am - 12pm
Seminar Location: 
zoom: https://pitt.zoom.us/j/97285938194
Presenter: 
Sunmoo Yoon, PhD, RN
Presenter's Institution: 
Columbia University

She will present the application of AI/ML on the social determinant of health and AI algorithm development for family caregivers of Alzheimer’s disease and related dementia. Here are two related abstracts.

  1. Social determinants of health to reduce disparity: We applied artificial intelligence techniques to build correlate models that predict general poor health in a national sample of caregivers with mild cognitive impairment (MCI). Our application of deep learning identified age, duration of caregiving, amount of alcohol intake, weight, myocardial infarction (MI) and frequency of MCI symptoms for Blacks and Hispanics, whereas the frequency of MCI symptoms, income, weight, coronary heart disease (CHD), age, and use of e-cigarette for the others as the strongest correlates of poor health among 81 variables entered. The application of artificial intelligence efficiently provided intervention strategies for Black and Hispanic caregivers with MCI.
  1. Algorithm development for Tweets to reduce disparity: We extracted 3,291,101 Tweets using hashtags associated with African American-related discourse (#BlackTwitter, #BlackLivesMatter, #StayWoke) and 1,382,441 Tweets from a control set (general or no hashtags) from September 1, 2019, to December 31, 2019 using the Twitter API. We also extracted a literary-historical corpus of 14,692 poems and prose writings by African American authors and 66,083 items authored by others as a control, including poems, plays, short stories, novels and essays, using a cloud-based machine learning platform (Amazon SageMaker) via ProQuest TDM Studio. Lastly, we combined statistics from log-likelihood and Fisher’s exact tests as well as feature analysis of a batch-trained Naive Bayes classifier to select lexicons of terms most strongly associated with the target or control texts. The resulting Tweet-derived African American lexicon contains 1,734 unigrams, while the control contains 2,266 unigrams. This initial version of a lexicon-based African American Tweet detection algorithm developed using Tweet texts will be useful to inform culturally sensitive Twitter-based social support interventions for African American dementia caregivers.
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