activity
20222026
most citedLearning to Optimize LSM-trees: Towards A Reinforcement Learning based Key-Value Store for Dynamic Workloads

4 citations · 7 across the 5 of their papers we have counts for

collaborators

6 papers

cs.LG2026

Where the Model Changes Its Mind: Hindsight-Divergence Localization for Efficient Reinforcement Learning with Verifiable Rewards

Fanchao Chen, Hengyu Fu, Shivaram Venkataraman +1

Group-relative methods for reinforcement learning with verifiable rewards (RLVR) learn from differences in rollout outcomes. Independently sampling complete trajectories is costly…

cs.OS2025

From Good to Great: Improving Memory Tiering Performance Through Parameter Tuning

Konstantinos Kanellis, Sujay Yadalam, Fanchao Chen +2

Memory tiering systems achieve memory scaling by adding multiple tiers of memory wherein different tiers have different access latencies and bandwidth. For maximum performance, fre…

cs.DB2023★ 4 cited

Learning to Optimize LSM-trees: Towards A Reinforcement Learning based Key-Value Store for Dynamic Workloads

Dingheng Mo, Fanchao Chen, Siqiang Luo +1

LSM-trees are widely adopted as the storage backend of key-value stores. However, optimizing the system performance under dynamic workloads has not been sufficiently studied or eva…

cs.DB2023★ 1 cited

Efficient and Compact Spreadsheet Formula Graphs

Dixin Tang, Fanchao Chen, Christopher De Leon +4

Spreadsheets are one of the most popular data analysis tools, wherein users can express computation as formulae alongside data. The ensuing dependencies are tracked as formula grap…

cs.DB2023

Transactional Panorama: A Conceptual Framework for User Perception in Analytical Visual Interfaces

Dixin Tang, Alan Fekete, Indranil Gupta +1

Many tools empower analysts and data scientists to consume analysis results in a visual interface, such as a dashboard. When the underlying data changes, these results need to be u…

cs.CL2022★ 2 cited

Knowledge is Power: Understanding Causality Makes Legal judgment Prediction Models More Generalizable and Robust

Haotian Chen, Lingwei Zhang, Yiran Liu +2

Legal Judgment Prediction (LJP), aiming to predict a judgment based on fact descriptions according to rule of law, serves as legal assistance to mitigate the great work burden of l…