2024
Using Computer Vision to Detect E-cigarette Content in TikTok Videos
Murthy D, Ouellette R, Anand T, Radhakrishnan S, Mohan N, Lee J, Kong G. Using Computer Vision to Detect E-cigarette Content in TikTok Videos. Nicotine & Tobacco Research 2024, 26: s36-s42. PMID: 38366342, PMCID: PMC10873490, DOI: 10.1093/ntr/ntad184.Peer-Reviewed Original ResearchConceptsE-cigarette-related contentSocial media platformsVideo-based social media platformsMedia platformsComputer vision modelsAverage F1 scoreComputer vision methodsComputer vision techniquesMachine learning modelsText-based approachComputer visionObject detectionAnnotated imagesVisual contentSocial mediaF1 scoreVision techniquesRecall valuesVision methodsVision modelsSocial media platformLearning modelsVideoComputerTikTok posts
2023
Influence of User Profile Attributes on e-Cigarette–Related Searches on YouTube: Machine Learning Clustering and Classification
Murthy D, Lee J, Dashtian H, Kong G. Influence of User Profile Attributes on e-Cigarette–Related Searches on YouTube: Machine Learning Clustering and Classification. JMIR Infodemiology 2023, 3: e42218. PMID: 37124246, PMCID: PMC10139687, DOI: 10.2196/42218.Peer-Reviewed Original ResearchUser profilesSearch resultsAlgorithmic systemsUser profile attributesGraph convolutional networkYouTube search resultsProduct review videosK-means clusteringRecommendation algorithmUser attributesConvolutional networkMachine learningProfile attributesProduct reviewsUser characteristicsVideoReview videosUnderage usersYouTubeHigh accuracyHealth informationNetworkSex attributesClusteringAttribute factors
2022
Understanding e-cigarette content and promotion on YouTube through machine learning
Kong G, Schott AS, Lee J, Dashtian H, Murthy D. Understanding e-cigarette content and promotion on YouTube through machine learning. Tobacco Control 2022, 32: 739-746. PMID: 35504690, PMCID: PMC9630169, DOI: 10.1136/tobaccocontrol-2021-057243.Peer-Reviewed Original ResearchAn Exploration of e-Cigarette–Related Search Items on YouTube: Network Analysis
Dashtian H, Murthy D, Kong G. An Exploration of e-Cigarette–Related Search Items on YouTube: Network Analysis. Journal Of Medical Internet Research 2022, 24: e30679. PMID: 35084353, PMCID: PMC8832267, DOI: 10.2196/30679.Peer-Reviewed Original ResearchConceptsRule-based classificationInformation networksRule-based classification approachE-cigarette-related contentBetweenness centralityDistinct videosLeast connectionsSearch resultsClassification approachUser perceptionVideoSearch itemsNetwork modelingNetworkYouTubeSocial mediaSimilar wordsUnderlying structureNodesSimilar meaningNovel methodClassificationNetwork analysisGatewayLevel of importance