Liu Liu

Electrical, Computer, and Systems Engineering
Assistant Professor

About

Liu Liu is an Assistant Professor in the Department of Electrical, Computer, and Systems Engineering and the Department of Computer Science at Rensselaer Polytechnic Institute (RPI). He holds a Ph.D. in Computer Science and an M.S. in Electrical and Computer Engineering from the University of California, Santa Barbara. He directs the Efficient, Parallel, and Intelligent Computing (EPIC) Lab at RPI, focusing the research on Elastic AI Computing systems and architecture design. He is a recipient of NSF CAREER Award, Samsung Global Research Outreach Award, and Peter J Frenkel Fellowship from the Institute of Energy Efficiency at UCSB.

Education & Training

Ph.D. in Computer Science, University of California, Santa Barbara, 2022
M.S. in Electrical & Computer Engineering, University of California, Santa Barbara, 2015
B.E. in Optoelectronics, University of Electronic Science and Technology of China, 2013

Other affiliations: Computer Science

Research

Primary Research Focus
Computer Architecture, Machine Learning Systems, AI Hardware
Research Groups

Efficient, Parallel, and Intelligent Computing (EPIC) Lab

Teaching

Current Courses

ECSE 4770 Computer Hardware Design - Fall 2022, Fall 2023, Fall 2024, Fall 2025

ECSE 4780 Advanced Computer Hardware Design - Spring 2024, Spring 2025

ECSE 2660 Computer Architecture, Networks, and Operating Systems - Summer 2025

Recognition

Awards & Honors

NSF CAREER Award, 2025

Samsung Global Research Outreach (GRO) Award, 2024

Peter J Frenkel Fellowship, UCSB, 2020

Publications
Google Scholar

The following is a selection of recent publications in Scopus. Liu Liu has 30 indexed publications in the subjects of Computer Science, Computer Science, Computer Science.

ZipCXL: CXL-based Main Memory Compression at Low Performance Penalty
Asad Ul Haq, Yunhua Fang, Rui Xie, Liu Liu, Linsen Ma, Tong Zhang
Memsys 2025 Proceedings of the International Symposium on Memory Systems
, 2026
, pp.15-27
.
TRACE: Unlocking Effective CXL Bandwidth via Lossless Compression and Precision Scaling
Rui Xie, Asad Ul Haq, Yunhua Fang, Linsen Ma, Zirak Burzin Engineer, Liu Liu, Tong Zhang
IEEE Transactions on Computers
, 75
, 2026
, pp.1349-1362
.
SparseST: Exploiting Data Sparsity in Spatiotemporal Modeling and Prediction
Junfeng Wu, Hadjer Benmeziane, Kaoutar El Maghraoui, Liu Liu, Yinan Wang
IEEE Transactions on Automation Science and Engineering
, 2026
.
BitWeaver: Read-Time Truncation in Memory
Garrett Gagnon, Srikanth Malla, Yangwook Kang, Liu Liu
Proceedings of the International Conference on Supercomputing
, Part of 213821
, 2025
, pp.13-25
.
NORA: Noise-Optimized Rescaling of LLMs on Analog Compute-in-Memory Accelerators
Yayue Hou, Hsinyu Tsai, Kaoutar El Maghraoui, Tayfun Gokmen, Geoffrey W. Burr, Liu Liu
Proceedings Design Automation and Test in Europe Date
, 2025
.
Breaking the HBM Bit Cost Barrier: Domain-Specific ECC for AI Inference Infrastructure
Rui Xie, Asad Ul Haq, Yunhua Fang, Linsen Ma, Sanchari Sen, Swagath Venkataramani, Liu Liu, Tong Zhang
IEEE Computer Architecture Letters
, 24
, 2025
, pp.313-316
.
Accelerating LLM Inference via Dynamic KV Cache Placement in Heterogeneous Memory System
Yunhua Fang, Rui Xie, Asad Ul Haq, Linsen Ma, Kaoutar El Maghraoui, Naigang Wang, Meng Wang, Liu Liu, Tong Zhang
IEEE Computer Architecture Letters
, 24
, 2025
, pp.337-340
.
ECSSD: Hardware/Data Layout Co-Designed In-Storage-Computing Architecture for Extreme Classification
Siqi Li, Jilan Lin, Fengbin Tu, Zheng Wang, Liu Liu, Yangwook Kang, Yufei Ding, Yuan Xie
Proceedings - International Symposium on Computer Architecture
, 2023
, pp.814-827
.
Dynamic N:M Fine-Grained Structured Sparse Attention Mechanism
Zhaodong Chen, Zheng Qu, Yuying Quan, Liu Liu, Yufei Ding, Yuan Xie
Proceedings of the ACM SIGPLAN Symposium on Principles and Practice of Parallel Programming, PPOPP
, 2023
, pp.369-379
.
CheckSORT: Refined Synthetic Data Combination and Optimized SORT for Automatic Retail Checkout
Ziqiang Shi, Zhongling Liu, Liu Liu, Rujie Liu, Takuma Yamamoto, Xiaoyu Mi, Daisuke Uchida
IEEE Computer Society Conference on Computer Vision and Pattern Recognition Workshops
, 2023-June
, 2023
, pp.5391-5398
.

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