BEGIN:VCALENDAR VERSION:2.0 PRODID:-//132.216.98.100//NONSGML kigkonsult.se iCalcreator 2.20.4// BEGIN:VEVENT UID:20260207T201833EST-1941lbrDOc@132.216.98.100 DTSTAMP:20260208T011833Z DESCRIPTION:\n Title: New Advances in High-Dimensional DNA Methylation Analy sis in Cancer Epigenetic Using Trans-dimensional Hidden Markov Models\n\n   \n\n\nAbstract:\n\nEpigenetic alterations are key drivers in the developme nt and progression of cancer. Identifying differentially methylated cytosi nes (DMCs) in cancer samples is a crucial step toward understanding these changes. In this talk\, we propose a trans-dimensional Markov chain Monte Carlo (TMCMC) approach that uses hidden Markov models (HMMs) with binomial emission\, and bisulfite sequencing (BS-Seq) data\, called DMCTHM\, to id entify DMCs in cancer epigenetic studies. We introduce the Expander-Collid er penalty to tackle under and over-estimation in TMCMC-HMMs. We address a ll known challenges inherent in BS-Seq data by introducing novel approache s for capturing functional patterns and autocorrelation structure of the d ata\, as well as for handling missing values\, multiple covariates\, multi ple comparisons\, and family-wise errors. We demonstrate the effectiveness of DMCTHM through comprehensive simulation studies. The results show that our proposed method outperforms other competing methods in identifying DM Cs. Notably\, with DMCTHM\, we uncovered new DMCs and genes in Colorectal cancer that were significantly enriched in the Tp53 pathway.\n\nSpeaker\n \nFarhad Shokoohi is currently serving as an Assistant Professor of Statis tics in the Department of Mathematical Sciences at the University of Nevad a\, Las Vegas (UNLV) since 2019. He obtained his Ph.D. in Statistics from Shahid Beheshti University in Iran in 2012. Following his doctoral studies \, Farhad completed three postdoctoral fellowships at the University of Ma nitoba (2013) and ºÚÁÏÍø±¬³Ô¹Ï (2013-2014\, 2014-2016). Subsequently\ , he held the position of Assistant Professor at Concordia University from 2017 to 2018. Farhad has also held visiting scholar positions at the Univ ersity of Perugia\, Italy\, and Ohio State University\, USA.\n\nFarhad’s r esearch expertise spans diverse areas of statistical analysis\, including high-dimensional data analysis\, Bayesian and frequentist methods\, machin e learning\, statistical genomics and genetics\, computational statistics\ , and software development\, among other fields.\n\nhttps://mcgill.zoom.us /j/83008174313\n\nMeeting ID: 830 0817 4313\n\nPasscode: None\n\n \n DTSTART:20240112T203000Z DTEND:20240112T213000Z LOCATION:Room 1104\, Burnside Hall\, CA\, QC\, Montreal\, H3A 0B9\, 805 rue Sherbrooke Ouest SUMMARY:Farhad Shokoohi (University of Nevada) URL:/mathstat/channels/event/farhad-shokoohi-universit y-nevada-354046 END:VEVENT END:VCALENDAR