Duo Lu (陆铎)

I am a third-year PhD student at Brown University advised by Prof. Uğur Çetintemel

I have a great research time with Prof. Tianzheng Wang to explore next-generation hardware Persistent Memory and Prof. Martin Ester on few-shot learning. I received my B.S. in Computing Science from Simon Fraser University in 2022.

Email  /  CV  /  Google Scholar  /  Github

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Research

I am broadly interested in core database systems, synchronization methods, and machine learning systems. I am currently focused on efficiently implementing, chaining, and optimizing various LLM operators within a streaming processing system, with an emphasis on high-dimensional embedding/vector operators and indexes. My previous work was to build and evaluate database indexes on persistent memory.

Publications
An In-Depth Study of Filter-Agnostic Vector Search on a PostgreSQL Database System
Duo Lu, Helena Caminal, Manos Chatzakis, Yannis Papakonstantinou, Yannis Chronis, Vaibhav Jain, Fatma Ozcan
International Conference on Management of Data (SIGMOD), 2026. (To appear)

Making Prompts First-Class Citizens for Adaptive LLM Pipelines
Uğur Çetintemel, Shu Chen, Alexander W. Lee, Deepti Raghavan, Duo Lu, Andrew Crotty
The Conference on Innovative Data Systems Research (CIDR), 2026.

VectraFlow: Integrating Vectors into Stream Processing
Duo Lu, Siming Feng, Jonathan Zhou, Franco Solleza, Malte Schwarzkopf, Uğur Çetintemel
The Conference on Innovative Data Systems Research (CIDR), 2025.

Evaluating Persistent Memory Range Indexes: Part Two
Yuliang He, Duo Lu, Kaisong Huang, Tianzheng Wang
International Conference on Very Large Data Bases (Proceedings of VLDB), 2022.
Extended Version / Slides / Poster / Code

Experience
May 2025 ~ Dec 2025 Student Researcher
Sunnyvale, CA, United States Google, Systems Research Group (SRG)
Hosts: Helena Caminal, Fatma Özcan
Develop and evaluate filtered vector search indexes.
May 2022 ~ Aug 2023 Embedded Software Developer
Vancouver, BC, Canada Fortinet, FortiOS Routing Team
Manager: Henry Xing
Maintained and improved routing protocols such as OSPF and BGP in FortiOS.

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