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Chunwei Liu

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Review Sep 2026

Guarded Commits: Transactional Human Approvals for LLM Workflows

LLM workflows often require human approval before an irreversible external action. Most systems keep that approval outside the workflow, as an interface click or an audit entry. The workflow therefore lacks a commit-time check that every risky path reached an approval gate. Its logs may not preserve the reviewed eviden...

Laurent Bindschaedler, Ferdinand Kossmann, Chun-Wei Liu et al. · 0 citations
Preprint Oct 2026

Prune First, Decide Fast: Scalable Semantic Query Processing with JEVDB

Semantic database systems extend SQL with foundation-model inference over unstructured data, but current engines rely heavily on autoregressive LLMs for discrete relational decisions, creating high latency and monetary cost. We present JEVDB, a scalable semantic database system that uses fast, typed decision models for...

Zheng-Le Wang, Han-Xu Yan, Fuheng Zhao et al. · 1 citation · ⚡1
#artificial intelligence Preprint Sep 2026

Fail Loudly: An Auditable Runtime for Agentic Data Analysis

RADAR is an auditable runtime that makes an agent's analytical choices inspectable and supports their revision through execution feedback and rejects the operation or provides diagnostic feedback, allowing the agent to revise its choices before errors propagate.

Han-Xu Yan, Lang-Xuan Deng, Zheng-Le Wang et al. · 0 citations
Aug 2026

iPDB: SQL with ML and LLM Predicates (Towards a Database Engine for AI)

iPDB is demonstrated, a system that supports in-database LLM inference using an extended declarative SQL syntax and new optimizations that result in efficient query processing of LLM-enabled SQL queries that outperform state-of-the-art systems.

Udesh Kumarasinghe, Tyler Liu, Ahmed R. Mahmood et al. · 0 citations

TransForm: Dynamic Format Selection for MCP Tool Outputs in Agentic Data Systems

TransForm is presented, a control/data-plane split in which MCP returns a small envelope plus a machine-readable descriptor, and large payloads are delivered over stream-able HTTP as JSON, Parquet, or Arrow IPC (blob or chunk stream).

Shashank Mukkera, Chun-Wei Liu · 0 citations

TabClean: Scalable Tabular Data Cleaning via Reusable LLM-Synthesized Programs

TabClean is presented, a cost-efficient and training-free tabular data cleaning system in which LLM agents synthesize reusable code for error detection and correction, making LLM usage a largely one-time rather than recurring cost.

Yibo Wang, Riteng Zhang, Bharat Bhargava et al. · 0 citations

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