BEGIN:VCALENDAR VERSION:2.0 PRODID:-//wp-events-plugin.com//7.2.3.1//EN TZID:America/Los_Angeles X-WR-TIMEZONE:America/Los_Angeles BEGIN:VEVENT UID:234@escience.washington.edu DTSTART;TZID=America/Los_Angeles:20241015T163000 DTEND;TZID=America/Los_Angeles:20241015T172000 DTSTAMP:20241018T191959Z URL:https://escience.washington.edu/events/uw-data-science-seminar-dongfan g-zhao/ SUMMARY:UW Data Science Seminar: Dongfang Zhao DESCRIPTION:\n\nPlease join us for a UW Data Science Seminar on Tuesday\, O ctober 15th from 4:30 to 5:20 p.m. PT. The seminar will feature Dongfang Z hao\, an Assistant Professor of Computer Science at the University of Wash ington with affiliations at the UW Tacoma School of Engineering &\; Te chnology\, the Paul G. Allen School of Computer Science &\; Engineerin g\, and the eScience Institute.\n\nThe seminar will be held in the Physics /Astronomy Auditorium (PAA)\, Room A118 - campus map.\n\n\n \;\n"Enha ncing Performance in Database Encryption and Recent Developments in Vector Databases"\nAbstract: The confidentiality of outsourced data\, particular ly in domains like financial services and healthcare\, remains a critical concern for applications deployed in public cloud environments. Traditiona l cryptographic methods\, such as AES\, offer data protection but severely limit database functionalities\, reducing them to mere storage solutions without the ability to execute queries on encrypted data. Homomorphic Encr yption (HE) emerges as a promising solution\, enabling computations direct ly on ciphertexts. However\, the high computational overhead of HE\, espec ially for data-intensive tasks\, poses a significant performance challenge . In this talk\, I will discuss cutting-edge optimizations aimed at minimi zing this performance burden in outsourced databases. I will focus on a ra dix-based parallel caching technique designed to accelerate encryption pro cesses while maintaining the security guarantees of existing HE schemes. T his method optimizes performance by parallelizing the caching of selected radix ciphertexts. If time allows\, I will also cover recent advances in v ector databases\, particularly their growing role in retrieval-augmented g eneration (RAG) systems and large-language models (LLMs).\nBio: Dongfang Z hao is a tenure-track assistant professor of computer science at the Unive rsity of Washington (UW)\, with affiliations at the UW Tacoma School of E ngineering &\; Technology\, the Paul G. Allen School of Computer Scien ce &\; Engineering\, and the eScience Institute. His research spans ac ross databases\, cryptography\, high-performance computing\, and artificia l intelligence. Before joining UW\, he was a faculty member at UC Davis  and worked for multiple government and industry labs such as Pacific North west National Laboratory and IBM Almaden Research Center. Prior to moving to the U.S.\, he studied electrical engineering\, computer science\, and m athematical statistics at KU Leuven\, Belgium.\n\n\nThe UW Data Science Se minar is an annual lecture series at the University of Washington that ho sts scholars working across applied areas of data science\, such as the sc iences\, engineering\, humanities and arts along with methodological areas in data science\, such as computer science\, applied math and statistics. Our presenters come from all domain fields and include occasional externa l speakers from regional partners\, governmental agencies and industry.\n& nbsp\;\n\nThe 2024-2025 seminars will be held in person\, and are free and open to the public. LOCATION:Physics/Astronomy Auditorium\, room A118\, Seattle\, WA\, X-APPLE-STRUCTURED-LOCATION;VALUE=URI;X-ADDRESS=Seattle\, WA\, ;X-APPLE-RAD IUS=100;X-TITLE=Physics/Astronomy Auditorium\, room A118:geo:0,0 END:VEVENT BEGIN:VTIMEZONE TZID:America/Los_Angeles X-LIC-LOCATION:America/Los_Angeles BEGIN:DAYLIGHT DTSTART:20240310T030000 TZOFFSETFROM:-0800 TZOFFSETTO:-0700 TZNAME:PDT END:DAYLIGHT END:VTIMEZONE END:VCALENDAR