{"689112":{"#nid":"689112","#data":{"type":"event","title":"Ph.D. Dissertation Defense - Haichuan (Ken) Xu","body":[{"value":"\u003Cp\u003E\u003Cstrong\u003ETitle\u003C\/strong\u003E\u003Cem\u003E:\u0026nbsp; Extracting Hidden, Protected, and Deleted User Interaction Contexts from Applications and AI Systems\u003C\/em\u003E\u003C\/p\u003E\u003Cp\u003E\u003Cstrong\u003ECommittee:\u003C\/strong\u003E\u003C\/p\u003E\u003Cp\u003EDr.\u0026nbsp;Brendan Saltaformaggio, ECE, Chair, Advisor\u003C\/p\u003E\u003Cp\u003EDr.\u0026nbsp;Saman Zonouz, ECE\u003C\/p\u003E\u003Cp\u003EDr.\u0026nbsp;Michael Specter, CoC\u003C\/p\u003E\u003Cp\u003EDr.\u0026nbsp;Frank Li\u003C\/p\u003E\u003Cp\u003EDr.\u0026nbsp;Ozgur Ozmen, ASU\u003C\/p\u003E","summary":"","format":"limited_html"}],"field_subtitle":"","field_summary":[{"value":"\u003Cp\u003EIn this dissertation, I make hidden, protected, and deleted interaction context measurable and actionable by extracting it from real software stacks. In DVa, I uncover victim apps and attribute victim-specific a11y abuse vectors by combining victim modeling with abuse-vector-guided symbolic analysis on real malware. In SOMBRA, I identify where app-side a11y protections fail to transfer to mobile websites by modeling and comparing the a11y information exposed by native apps and by browser-rendered counterparts across four different browsers. In ORISA, I recover and rehost deleted conversation context from local LLM apps by extracting and realigning batch tokens and KV cache state so investigators can interrogate a live session with recovered context.\u003C\/p\u003E","format":"limited_html"}],"field_summary_sentence":[{"value":"Extracting Hidden, Protected, and Deleted User Interaction Contexts from Applications and AI Systems "}],"uid":"28475","created_gmt":"2026-03-20 20:25:53","changed_gmt":"2026-03-20 20:26:56","author":"Daniela Staiculescu","boilerplate_text":"","field_publication":"","field_article_url":"","field_event_time":{"event_time_start":"2026-04-03T12:00:00-04:00","event_time_end":"2026-04-03T14:00:00-04:00","event_time_end_last":"2026-04-03T14:00:00-04:00","gmt_time_start":"2026-04-03 16:00:00","gmt_time_end":"2026-04-03 18:00:00","gmt_time_end_last":"2026-04-03 18:00:00","rrule":null,"timezone":"America\/New_York"},"location":"Room C0903, CODA","extras":[],"groups":[{"id":"434381","name":"ECE Ph.D. Dissertation Defenses"}],"categories":[],"keywords":[{"id":"100811","name":"Phd Defense"},{"id":"1808","name":"graduate students"}],"core_research_areas":[],"news_room_topics":[],"event_categories":[{"id":"1788","name":"Other\/Miscellaneous"}],"invited_audience":[{"id":"78771","name":"Public"}],"affiliations":[],"classification":[],"areas_of_expertise":[],"news_and_recent_appearances":[],"phone":[],"contact":[],"email":[],"slides":[],"orientation":[],"userdata":""}}}