{ "130748-21866776": { "datetime_modified":"20250110T130940", "datetime_start":"20250317T120000", "datetime_end":"20250317T160000", "has_end_time":1, "date_start":"2025-03-17", "date_end":"2025-03-17", "time_start":"12:00:00", "time_end":"16:00:00", "time_zone":"America\/Detroit", "event_title":"More than Gray: Reimagining Early America in Full Color", "occurrence_title":"", "combined_title":"More than Gray: Reimagining Early America in Full Color", "event_subtitle":"", "event_type":"Exhibition", "event_type_id":"7", "description":"The American past was lived in full color, but this vibrant history can be easily missed in surviving evidence. You can\u2019t deny that there\u2019s something about a black-and-white photograph that feels\u2026 stuffy. With portraits showing people with their shirts buttoned right to the neck and everything in shades of gray and brown, our imaginations can incline to thinking of the past as a bit staid, if not downright dull. But look a little closer, and you\u2019ll see signs that the fashion choices available to those who came before us were more colorful than you might first think. From the fabrics they wore, to the games they played, or the books they read, their world was alive with bright hues. This exhibit invites you to reimagine history with a fuller color palette and picture the vibrancy and joy that just might be hidden behind the unsmiling photographs.\r\n\r\nExhibition opening weekdays from 12-4.", "occurrence_notes":null, "guid":"130748-21866776@events.umich.edu", "permalink":"http:\/\/events.umich.edu\/event\/130748", "building_id":"1000159", "building_name":"William Clements Library", "campus_maps_id":"165", "room":"", "location_name":"William Clements Library", "has_livestream":0, "cost":"", "tags":["american culture","Library","libraries","history","Free","Exhibition","Exhibit","american history"], "website":"https:\/\/myumi.ch\/zXQ3w", "sponsors":[ { "group_name":"William L. Clements Library", "group_id":"1727", "website":"" } ], "image_url":"https:\/\/events.umich.edu\/media\/attachments\/2025\/01\/event_130748_original-1.jpeg", "styled_images":{ "event_thumb":"https:\/\/events.umich.edu\/media\/cache\/event_thumb\/media\/attachments\/2025\/01\/crop-event_130748_original-1.jpeg", "event_large":"https:\/\/events.umich.edu\/media\/cache\/event_large\/media\/attachments\/2025\/01\/crop-event_130748_original-1.jpeg", "event_large_2x":"https:\/\/events.umich.edu\/media\/cache\/event_large_2x\/media\/attachments\/2025\/01\/crop-event_130748_original-1.jpeg", "event_large_lightbox":"https:\/\/events.umich.edu\/media\/cache\/event_large_lightbox\/media\/attachments\/2025\/01\/crop-event_130748_original-1.jpeg", "group_thumb":"https:\/\/events.umich.edu\/media\/cache\/group_thumb\/media\/attachments\/2025\/01\/crop-event_130748_original-1.jpeg", "group_thumb_square":"https:\/\/events.umich.edu\/media\/cache\/group_thumb_square\/media\/attachments\/2025\/01\/crop-event_130748_original-1.jpeg", "group_large":"https:\/\/events.umich.edu\/media\/cache\/group_large\/media\/attachments\/2025\/01\/crop-event_130748_original-1.jpeg", "group_large_lightbox":"https:\/\/events.umich.edu\/media\/cache\/group_large_lightbox\/media\/attachments\/2025\/01\/crop-event_130748_original-1.jpeg", "event_large_crop":"https:\/\/events.umich.edu\/media\/cache\/event_large_crop\/media\/attachments\/2025\/01\/crop-event_130748_original-1.jpeg", "event_list":"https:\/\/events.umich.edu\/media\/cache\/event_list\/media\/attachments\/2025\/01\/crop-event_130748_original-1.jpeg", "event_list_2x":"https:\/\/events.umich.edu\/media\/cache\/event_list_2x\/media\/attachments\/2025\/01\/crop-event_130748_original-1.jpeg", "event_grid":"https:\/\/events.umich.edu\/media\/cache\/event_grid\/media\/attachments\/2025\/01\/crop-event_130748_original-1.jpeg", "event_grid_2x":"https:\/\/events.umich.edu\/media\/cache\/event_grid_2x\/media\/attachments\/2025\/01\/crop-event_130748_original-1.jpeg", "event_feature_large":"https:\/\/events.umich.edu\/media\/cache\/event_feature_large\/media\/attachments\/2025\/01\/crop-event_130748_original-1.jpeg", "event_feature_thumb":"https:\/\/events.umich.edu\/media\/cache\/event_feature_thumb\/media\/attachments\/2025\/01\/crop-event_130748_original-1.jpeg" }, "occurrence_count":61, "first_occurrence":21866710 } , "133772-21873545": { "datetime_modified":"20250312T144202", "datetime_start":"20250317T123000", "datetime_end":"20250317T143000", "has_end_time":1, "date_start":"2025-03-17", "date_end":"2025-03-17", "time_start":"12:30:00", "time_end":"14:30:00", "time_zone":"America\/Detroit", "event_title":"Architectures for Safe Autonomy: Provable Guarantees Across Control, Planning, and Perception", "occurrence_title":"", "combined_title":"Architectures for Safe Autonomy: Provable Guarantees Across Control, Planning, and Perception: PhD Defense, Devansh Agrawal", "event_subtitle":"PhD Defense, Devansh Agrawal", "event_type":"Presentation", "event_type_id":"16", "description":"Chair: Dimitra Panagou\r\n\r\nAbstract\r\nThis thesis addresses the design of safety-critical autonomous systems - systems that must always satisfy a set of safety constraints. The primary objective is to develop a cohesive architecture for the entire autonomy stack, ensuring that, under specific and verifiable assumptions, a robot can execute its mission while respecting these constraints.\r\n\r\nTo achieve this, we take a bottom-up approach, beginning with the design of a safety-critical controller and identifying the necessary assumptions for its safe operation. These assumptions impose requirements on upstream autonomy modules, such as planning and perception. We then develop methods to construct these modules in a way that preserves safety guarantees across the entire autonomy stack.\r\n\r\nThe main contributions of this thesis include: (A) the gatekeeper architecture - a flexible framework for establishing rigorous safety guarantees at the planning level, (B) the development of certifiably correct perception algorithms that not only produce accurate obstacle maps but also provide error bounds to ensure correctness despite odometry drift, and (C) the introduction of clarity and perceivability - concepts that quantify a robotic system\u2019s ability to gather information about its environment, taking into account the environment model, as well as the robot\u2019s actuation and sensing capabilities.\r\n\r\nFor each of these contributions, we provide formal proofs and demonstrate their practical effectiveness through simulations and hardware experiments with aerial and mobile robots.\r\n\r\nZoom passcode: opensesame", "occurrence_notes":"and on Zoom (passcode: opensesame)", "guid":"133772-21873545@events.umich.edu", "permalink":"http:\/\/events.umich.edu\/event\/133772", "building_id":"1005418", "building_name":"Ford Robotics Building", "campus_maps_id":"647", "room":"2300", "location_name":"Ford Robotics Building", "has_livestream":0, "cost":"", "tags":["Aerospace Engineering","Michigan Engineering","Michigan Robotics","Robotics"], "website":"https:\/\/docs.google.com\/forms\/d\/e\/1FAIpQLSdXlM3lYOx4U5aAW5goQTOThwj4sMhHdkK3pZ10Unul2WdNEg\/viewform", "sponsors":[ { "group_name":"Michigan Robotics", "group_id":"3998", "website":"" } ], "image_url":"https:\/\/events.umich.edu\/media\/attachments\/2025\/03\/event_133772_original-1.png", "styled_images":{ "event_thumb":"https:\/\/events.umich.edu\/media\/cache\/resolve\/event_thumb\/media\/attachments\/2025\/03\/event_133772_original-1.png", "event_large":"https:\/\/events.umich.edu\/media\/cache\/event_large\/media\/attachments\/2025\/03\/event_133772_original-1.png", "event_large_2x":"https:\/\/events.umich.edu\/media\/cache\/resolve\/event_large_2x\/media\/attachments\/2025\/03\/event_133772_original-1.png", "event_large_lightbox":"https:\/\/events.umich.edu\/media\/cache\/event_large_lightbox\/media\/attachments\/2025\/03\/event_133772_original-1.png", "group_thumb":"https:\/\/events.umich.edu\/media\/cache\/resolve\/group_thumb\/media\/attachments\/2025\/03\/event_133772_original-1.png", "group_thumb_square":"https:\/\/events.umich.edu\/media\/cache\/resolve\/group_thumb_square\/media\/attachments\/2025\/03\/event_133772_original-1.png", "group_large":"https:\/\/events.umich.edu\/media\/cache\/resolve\/group_large\/media\/attachments\/2025\/03\/event_133772_original-1.png", "group_large_lightbox":"https:\/\/events.umich.edu\/media\/cache\/resolve\/group_large_lightbox\/media\/attachments\/2025\/03\/event_133772_original-1.png", "event_large_crop":"https:\/\/events.umich.edu\/media\/cache\/resolve\/event_large_crop\/media\/attachments\/2025\/03\/event_133772_original-1.png", "event_list":"https:\/\/events.umich.edu\/media\/cache\/resolve\/event_list\/media\/attachments\/2025\/03\/event_133772_original-1.png", "event_list_2x":"https:\/\/events.umich.edu\/media\/cache\/event_list_2x\/media\/attachments\/2025\/03\/event_133772_original-1.png", "event_grid":"https:\/\/events.umich.edu\/media\/cache\/event_grid\/media\/attachments\/2025\/03\/event_133772_original-1.png", "event_grid_2x":"https:\/\/events.umich.edu\/media\/cache\/resolve\/event_grid_2x\/media\/attachments\/2025\/03\/event_133772_original-1.png", "event_feature_large":"https:\/\/events.umich.edu\/media\/cache\/event_feature_large\/media\/attachments\/2025\/03\/event_133772_original-1.png", "event_feature_thumb":"https:\/\/events.umich.edu\/media\/cache\/event_feature_thumb\/media\/attachments\/2025\/03\/event_133772_original-1.png" }, "occurrence_count":1, "first_occurrence":21873545 } }