DBScholar

Back to papers

Task Cascades for Efficient Unstructured Data Processing

Summary: Task cascades generalize model cascades for LLM-based document processing by varying not only the model, but also the queried span and even the operation, exploiting simpler correlated sub-tasks and partial evidence. An iterative optimizer plus statistical accuracy guarantees yields 36% lower cost than standard cascades at 90% target accuracy. (summarized by gpt-5.4-mini on Apr 11 2026)

Paper ID
h28d777b45af3f14d
Venue
SIGMOD
Year
2026
Pagerank
5.0432098e-05
Overall Rank
10,231 | 31.43%
DOI
10.1145/3786702
PDF
Download (CC BY 4.0)

Incoming Non-self Citations Over Time

Authors

BibTeX Citation

@inproceedings{shankar_sigmod26,
        title = {{Task Cascades for Efficient Unstructured Data Processing}},
        author = {Shankar, Shreya and Zeighami, Sepanta and Parameswaran, Aditya G.},
        series = {{SIGMOD} '26},
        booktitle = {Proceedings of the {ACM} {SIGMOD} International Conference on Management of Data},
        publisher = {Association for Computing Machinery},
        doi = {10.1145/3786702},
        url = {https://dl.acm.org/doi/10.1145/3786702},
        year = {2026}
}

Incoming Citations (Sorted by Pagerank)

Showing 2 of 2 citing papers.

Rank Citing Paper Year Venue Pagerank
6,615 Multi-Objective Agentic Rewrites for Unstructured Data Processing 2026 VLDB 5.7164252e-05
10,418 Evergreen: Efficient Claim Verification for Semantic Aggregates 2027 VLDB 4.9605343e-05
Previous Page 1 / 1 Next

Outgoing Citations (Sorted by Pagerank)

Showing 29 of 29 cited papers.

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

Rank Cited Paper Year Venue Pagerank
125 Predicate Migration: Optimizing Queries with Expensive Predicates 1993 SIGMOD 0.00030398363
273 NoScope: Optimizing Neural Network Queries over Video at Scale 2017 VLDB 0.00022518449
278 Accelerating Machine Learning Inference with Probabilistic Predicates 2018 SIGMOD 0.00022277737
374 Approximate Query Processing: Taming the TeraBytes! A Tutorial 2001 VLDB 0.00019698889
494 Language Models Enable Simple Systems for Generating Structured Views of Heterogeneous Data Lakes 2024 VLDB 0.00017350554
518 Random Sampling for Histogram Construction: How much is enough? 1998 SIGMOD 0.00016918797
541 BlazeIt: Optimizing Declarative Aggregation and Limit Queries for Neural Network-Based Video Analytics 2020 VLDB 0.00016627384
605 CAESURA: Language Models as Multi-Modal Query Planners 2024 CIDR 0.00015630219
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
1,065 Approximate Query Processing: No Silver Bullet 2017 SIGMOD 0.00012181098
1,956 LLM-R^2: A Large Language Model Enhanced Rule-based Rewrite System for Boosting Query Efficiency 2025 VLDB 9.2927535e-05
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
2,777 Approximate Selection with Guarantees using Proxies 2020 VLDB 8.0101016e-05
2,924 Abacus: A Cost-Based Optimizer for Semantic Operator Systems 2026 VLDB 7.8407467e-05
3,629 TASTI: Semantic Indexes for Machine Learning-based Queries over Unstructured Data 2022 SIGMOD 7.1286458e-05
3,661 Pneuma: Leveraging LLMs for Tabular Data Representation and Retrieval in an End-to-End System 2025 SIGMOD 7.1033233e-05
3,747 Accelerating Approximate Aggregation Queries with Expensive Predicates 2021 VLDB 7.0351475e-05
3,889 FiGO: Fine-Grained Query Optimization in Video Analytics 2022 SIGMOD 6.9269184e-05
3,914 AOP: Automated and Interactive LLM Pipeline Orchestration for Answering Complex Queries 2025 CIDR 6.9084826e-05
4,495 Filtering with Approximate Predicates 1998 VLDB 6.5601814e-05
5,234 ELEET: Efficient Learned Query Execution over Text and Tables 2024 VLDB 6.204849e-05
6,763 VectraFlow: Integrating Vectors into Stream Processing 2025 CIDR 5.6701896e-05
6,874 SpareLLM: Automatically Selecting Task-Specific Minimum-Cost Large Language Models under Equivalence Constraint 2025 SIGMOD 5.6434298e-05
7,416 Accelerating Aggregation Queries on Unstructured Streams of Data 2023 VLDB 5.5159866e-05
8,320 ThriftLLM: On Cost-Effective Selection of Large Language Models for Classification Queries 2025 VLDB 5.3404439e-05
8,639 A Learned Query Rewrite System 2023 VLDB 5.2825942e-05
Previous Page 1 / 1 Next

Semantically Similar Papers