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Multi-Objective Agentic Rewrites for Unstructured Data Processing

Summary: MOAR optimizes LLM-powered DocETL pipelines via 30+ cost/accuracy rewrite directives and global, multi-armed-bandit search over interacting rewrites. Across six workloads, it delivers 27% higher accuracy than ABACUS, or comparable accuracy at 55% of the cost. (summarized by gpt-5.6-luna on Aug 28 2026)

Paper ID
hc258e4bdad270047
Venue
VLDB
Year
2026
Pagerank
5.7164252e-05
Overall Rank
6,615 | 55.66%
DOI
10.14778/3836663.3836673
PDF
Download (CC BY-NC-ND 4.0)

Incoming Non-self Citations Over Time

Authors

BibTeX Citation

@article{wei_vldb26,
        title = {{Multi-Objective Agentic Rewrites for Unstructured Data Processing}},
        author = {Wei, Lindsey Linxi and Shankar, Shreya and Zeighami, Sepanta and Chung, Yeounoh and Ozcan, Fatma and Parameswaran, Aditya G.},
        journal = {PVLDB},
        series = {{VLDB} '26},
        volume = {19},
        number = {11},
        pages = {3062--3075},
        doi = {10.14778/3836663.3836673},
        url = {https://doi.org/10.14778/3836663.3836673},
        year = {2026}
}

Incoming Citations (Sorted by Pagerank)

Showing 3 of 3 citing papers.

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Outgoing Citations (Sorted by Pagerank)

Showing 22 of 22 cited papers.

Citations counted here include only citations to other VLDB/SIGMOD/CIDR/PODS papers in this database.

Rank Cited Paper Year Venue Pagerank
1 Access Path Selection in a Relational Database Management System 1979 SIGMOD 0.0023948467
125 Predicate Migration: Optimizing Queries with Expensive Predicates 1993 SIGMOD 0.00030398363
259 An Overview of Query Optimization in Relational Systems 1998 PODS 0.00022881075
494 Language Models Enable Simple Systems for Generating Structured Views of Heterogeneous Data Lakes 2024 VLDB 0.00017350554
630 DocETL: Agentic Query Rewriting and Evaluation for Complex Document Processing 2025 VLDB 0.00015402076
697 Palimpzest: Optimizing AI-Powered Analytics with Declarative Query Processing 2025 CIDR 0.00014665686
2,225 ThalamusDB: Approximate Query Processing on Multi-Modal Data 2024 SIGMOD 8.7996555e-05
2,256 The Design of an LLM-powered Unstructured Analytics System 2025 CIDR 8.7418985e-05
2,611 Semantic Operators and Their Optimization: Enabling LLM-Based Data Processing with Accuracy Guarantees in LOTUS 2025 VLDB 8.2027761e-05
2,924 Abacus: A Cost-Based Optimizer for Semantic Operator Systems 2026 VLDB 7.8407467e-05
3,914 AOP: Automated and Interactive LLM Pipeline Orchestration for Answering Complex Queries 2025 CIDR 6.9084826e-05
4,583 QUEST: Query Optimization in Unstructured Document Analysis 2025 VLDB 6.5079225e-05
4,690 spade: Synthesizing Data Quality Assertions for Large Language Model Pipelines 2024 VLDB 6.4506346e-05
5,064 Beyond Quacking: Deep Integration of Language Models and RAG into DuckDB 2025 VLDB 6.2791311e-05
5,908 Unify: A System For Unstructured Data Analytics 2025 VLDB 5.9343313e-05
6,874 SpareLLM: Automatically Selecting Task-Specific Minimum-Cost Large Language Models under Equivalence Constraint 2025 SIGMOD 5.6434298e-05
6,938 PalimpChat: Declarative and Interactive AI analytics 2025 SIGMOD 5.6242429e-05
7,882 Semantic Integrity Constraints: Declarative Guardrails for AI-Augmented Data Processing Systems 2025 VLDB 5.4181983e-05
8,198 DocDB: A Database for Unstructured Document Analysis 2025 VLDB 5.3632824e-05
8,368 LEAP: LLM-powered End-to-end Automatic Library for Processing Social Science Queries on Unstructured Data 2025 VLDB 5.3292904e-05
8,543 Cut Costs, Not Accuracy: LLM-Powered Data Processing with Guarantees 2026 SIGMOD 5.3039559e-05
10,231 Task Cascades for Efficient Unstructured Data Processing 2026 SIGMOD 5.0432098e-05
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