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DTSTART:19960101T000000 END:STANDARD BEGIN:STANDARD TZNAME:GMT TZOFFSETFROM:+0100 TZOFFSETTO:+0000 DTSTART:19961027T020000 RRULE:FREQ=YEARLY;BYMONTH=10;BYDAY=-1SU END:STANDARD END:VTIMEZONE BEGIN:VEVENT DTSTAMP:20260426T131954Z DTSTART;VALUE=DATE-TIME:20200115T150000 DTEND;VALUE=DATE-TIME:20200115T160000 SUMMARY:CRiSM Seminar - Deep learning in genomics\, and a topic model for single cell analysis - Gerton Lunter TZID:Europe/London UID:20200115-8a17841a6e6469f6016e65656fe10b41@warwick.ac.uk CREATED:20200109T133223Z DESCRIPTION:In the last decades biology has become an increasingly data-r ich science. In parallel\, the field of Machine Learning (ML) has made r emarkable progress in modeling large and complex data sets. This suggest s to try and apply ML techniques to problems in biology. In the first ha lf of this talk I will show how ML methods can predict various intermedi ate phenotypes from sequence\, including splicing and chromatin state. T he nature of DNA means that these models often exhibit reverse-complemen t symmetry\, and we found that explicitly dealing with this structure im proves the quality of the model. For training we use data from whole-gen ome epigenetic assays across a range of tissue types. To address tissue heterogeneity the field is moving towards single-cell assays\, and to id entify the specific cell types document topic models such as Latent Diri chlet Allocation have been used. In the second half of the talk I will d iscuss recent work where we extend LDA to allows topic usage to be posit ive correlated across cell types\, which we hope will improve model fit and increase the sensitivity of detecting rare cell types. LOCATION:MB0.07 CATEGORIES:CRiSM Seminars,Seminars LAST-MODIFIED:20200109T133223Z ORGANIZER;CN=Paula Matthews: END:VEVENT END:VCALENDAR