Deprecated: TEC\Events_Pro\Custom_Tables\V1\WP_Query\Modifiers\Events_Not_Recurring_Custom_Tables_Query_Modifier::applies_to(): Implicitly marking parameter $query as nullable is deprecated, the explicit nullable type must be used instead in /home/seasevents/public_html/wp-content/plugins/events-calendar-pro/src/Events_Pro/Custom_Tables/V1/WP_Query/Modifiers/Events_Not_Recurring_Custom_Tables_Query_Modifier.php on line 61
Warning: Cannot modify header information - headers already sent by (output started at /home/seasevents/public_html/wp-content/plugins/events-calendar-pro/src/Events_Pro/Custom_Tables/V1/WP_Query/Modifiers/Events_Not_Recurring_Custom_Tables_Query_Modifier.php:61) in /home/seasevents/public_html/wp-content/plugins/the-events-calendar/src/Tribe/Views/V2/iCalendar/iCalendar_Handler.php on line 263
Warning: Cannot modify header information - headers already sent by (output started at /home/seasevents/public_html/wp-content/plugins/events-calendar-pro/src/Events_Pro/Custom_Tables/V1/WP_Query/Modifiers/Events_Not_Recurring_Custom_Tables_Query_Modifier.php:61) in /home/seasevents/public_html/wp-content/plugins/disable-xml-rpc-pingback/disable-xml-rpc-pingback.php on line 51
Warning: Cannot modify header information - headers already sent by (output started at /home/seasevents/public_html/wp-content/plugins/events-calendar-pro/src/Events_Pro/Custom_Tables/V1/WP_Query/Modifiers/Events_Not_Recurring_Custom_Tables_Query_Modifier.php:61) in /home/seasevents/public_html/wp-content/plugins/the-events-calendar/src/Tribe/iCal.php on line 511
Warning: Cannot modify header information - headers already sent by (output started at /home/seasevents/public_html/wp-content/plugins/events-calendar-pro/src/Events_Pro/Custom_Tables/V1/WP_Query/Modifiers/Events_Not_Recurring_Custom_Tables_Query_Modifier.php:61) in /home/seasevents/public_html/wp-content/plugins/the-events-calendar/src/Tribe/iCal.php on line 512
Warning: Cannot modify header information - headers already sent by (output started at /home/seasevents/public_html/wp-content/plugins/events-calendar-pro/src/Events_Pro/Custom_Tables/V1/WP_Query/Modifiers/Events_Not_Recurring_Custom_Tables_Query_Modifier.php:61) in /home/seasevents/public_html/wp-content/plugins/the-events-calendar/src/Tribe/iCal.php on line 515
BEGIN:VCALENDAR
VERSION:2.0
PRODID:-//Penn Engineering Events - ECPv6.18.0//NONSGML v1.0//EN
CALSCALE:GREGORIAN
METHOD:PUBLISH
X-WR-CALNAME:Penn Engineering Events
X-ORIGINAL-URL:https://seasevents.nmsdev7.com
X-WR-CALDESC:Events for Penn Engineering Events
REFRESH-INTERVAL;VALUE=DURATION:PT1H
X-Robots-Tag:noindex
X-PUBLISHED-TTL:PT1H
BEGIN:VTIMEZONE
TZID:America/New_York
BEGIN:DAYLIGHT
TZOFFSETFROM:-0500
TZOFFSETTO:-0400
TZNAME:EDT
DTSTART:20180311T070000
END:DAYLIGHT
BEGIN:STANDARD
TZOFFSETFROM:-0400
TZOFFSETTO:-0500
TZNAME:EST
DTSTART:20181104T060000
END:STANDARD
BEGIN:DAYLIGHT
TZOFFSETFROM:-0500
TZOFFSETTO:-0400
TZNAME:EDT
DTSTART:20190310T070000
END:DAYLIGHT
BEGIN:STANDARD
TZOFFSETFROM:-0400
TZOFFSETTO:-0500
TZNAME:EST
DTSTART:20191103T060000
END:STANDARD
BEGIN:DAYLIGHT
TZOFFSETFROM:-0500
TZOFFSETTO:-0400
TZNAME:EDT
DTSTART:20200308T070000
END:DAYLIGHT
BEGIN:STANDARD
TZOFFSETFROM:-0400
TZOFFSETTO:-0500
TZNAME:EST
DTSTART:20201101T060000
END:STANDARD
END:VTIMEZONE
BEGIN:VEVENT
DTSTART;TZID=America/New_York:20191025T150000
DTEND;TZID=America/New_York:20191025T160000
DTSTAMP:20191021T132453Z
CREATED:20191021T132453Z
LAST-MODIFIED:20191021T132453Z
UID:2175-1572015600-1572019200@seasevents.nmsdev7.com
SUMMARY:PRiML Seminar: "Nonconvex Optimization Meets Statistics: A Few Recent Stories"
DESCRIPTION:Recent years have seen a flurry of activity in solving statistical estimation and learning problems via nonconvex optimization. While conventional wisdom often takes a dim view of nonconvex optimization algorithms due to their susceptibility to spurious local minima\, simple iterative methods such as gradient descent have been remarkably successful in practice. The theoretical footings\, however\, had been largely lacking until recently. This talk presents two recent stories about nonconvex statistical estimation\, which highlight the important role of statistical models in enabling efficient nonconvex optimization. The first story is about randomly initialized nonconvex methods for a phase retrieval problem: even without careful initialization\, simple algorithms like gradient descent provably find the global solution within a logarithmic number of iterations. The second story is concerned with uncertainty quantification for nonconvex low-rank matrix completion. We develop a de-biased estimator — on the basis of a nonconvex estimate — that enables optimal construction of confidence intervals for the missing entries of the unknown matrix. All of this is achieved via a leave-one-out statistical analysis framework\, which is very powerful in handling and decoupling complicated statistical dependency.\n\n\nThis is joint work with Cong Ma\, Yuling Yan\, Yuejie Chi\, and Jianqing Fan.
URL:https://seasevents.nmsdev7.com/event/priml-seminar-nonconvex-optimization-meets-statistics-a-few-recent-stories/
LOCATION:Room 401B\, 3401 Walnut\, 3401 Walnut Street\, Philadelphia\, PA\, 19104\, United States
CATEGORIES:Seminar
ORGANIZER;CN="Computer and Information Science":MAILTO:cherylh@cis.upenn.edu
END:VEVENT
END:VCALENDAR