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CrowdDB: Answering Queries with Crowdsourcing

Summary: CrowdDB extends SQL-based query processing by outsourcing missing or fuzzy results to crowdsourcing. It treats crowd input as a first-class data source under a non-closed-world model and introduces crowd-aware operators, with early MTurk experiments. (summarized by gpt-5-nano on Feb 09 2026)

Paper ID
4371
Venue
SIGMOD
Year
2011
Pagerank
0.00051013264
Overall Rank
94 | 99.35%
DOI
-

Incoming Non-self Citations Over Time

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Incoming Citations (Sorted by Pagerank)

Showing 24 of 74 citing papers.

Rank Citing Paper Year Venue Pagerank
7,575 Human-in-the-loop Outlier Detection 2020 SIGMOD 4.7068909e-05
7,668 Human-in-the-loop Data Integration 2017 VLDB 4.6834075e-05
7,780 A Natural Language Interface for Querying General and Individual Knowledge 2015 VLDB 4.6533677e-05
8,517 Understanding Workers, Developing Effective Tasks, and Enhancing Marketplace Dynamics: A Study of a Large Crowdsourcing Marketplace 2017 VLDB 4.4943871e-05
8,671 Algorithmic Complexity Attacks on Dynamic Learned Indexes 2024 VLDB 4.4714076e-05
8,694 Managing General and Individual Knowledge in Crowd Mining Applications 2015 CIDR 4.4661379e-05
8,695 CrowdMiner: Mining association rules from the crowd 2013 VLDB 4.4661379e-05
9,005 Anthropocentric Data Systems 2011 VLDB 4.4101874e-05
9,043 Query-Guided Resolution in Uncertain Databases 2023 SIGMOD 4.4039656e-05
9,056 A Data Quality Metric (DQM): How to Estimate the Number of Undetected Errors in Data Sets 2017 VLDB 4.4039656e-05
9,492 Lingua Manga : A Generic Large Language Model Centric System for Data Curation 2023 VLDB 4.3341665e-05
9,729 Semantic Integrity Constraints: Declarative Guardrails for AI-Augmented Data Processing Systems 2025 VLDB 4.2942813e-05
10,395 User-Centric Property Graph Repairs 2025 SIGMOD 4.1945683e-05
10,452 ScaleLLM: A Technique for Scalable LLM-augmented Data Systems 2025 SIGMOD 4.1945683e-05
11,707 A Rating-Ranking Method for Crowdsourced Top-k Computation 2018 SIGMOD 4.1945683e-05
11,770 Staging User Feedback toward Rapid Conflict Resolution in Data Fusion 2017 SIGMOD 4.1945683e-05
11,788 CDB: Optimizing Queries with Crowd-Based Selections and Joins 2017 SIGMOD 4.1945683e-05
11,810 A Confidence-Aware Top-k Query Processing Toolkit on Crowdsourcing 2017 VLDB 4.1945683e-05
11,816 DOCS: Domain-Aware Crowdsourcing System 2017 VLDB 4.1945683e-05
11,892 Looking at Everything in Context 2015 CIDR 4.1945683e-05
11,902 The Importance of Being Expert: Efficient Max-Finding in Crowdsourcing 2015 SIGMOD 4.1945683e-05
12,009 TransactiveDB: Tapping into Collective Human Memories 2014 VLDB 4.1945683e-05
12,113 Mob Data Sourcing 2012 SIGMOD 4.1945683e-05
12,146 DrillBeyond: Enabling Business Analysts to Explore the Web of Open Data 2012 VLDB 4.1945683e-05
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Outgoing Citations (Sorted by Pagerank)

Showing 8 of 8 cited papers.

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

Rank Cited Paper Year Venue Pagerank
119 Answering Queries using Humans, Algorithms and Databases 2011 CIDR 0.0004564788
151 Optimizing Queries across Diverse Data Sources 1997 VLDB 0.00041016476
249 Crowdsourced Databases: Query Processing with People 2011 CIDR 0.00030740523
470 On Saying "Enough Already!" in SQL 1997 SIGMOD 0.00022393068
697 Human-Assisted Graph Search: It’s Okay to Ask Questions 2011 VLDB 0.00018043655
703 Query Execution Techniques for Caching Expensive Methods 1996 SIGMOD 0.00017916705
4,116 PIQL: A Performance Insightful Query Language 2010 SIGMOD 6.4381114e-05
5,056 Crowds, Clouds, and Algorithms: Exploring the Human Side of "Big Data" Applications 2010 SIGMOD 5.73044e-05
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Overall Rank Paper Year Venue Pagerank
1,164 CrowdScreen: Algorithms for Filtering Data with Humans 2012 SIGMOD 0.00013564823
2,123 Demonstration of Qurk: A Query Processor for Human Operators 2011 SIGMOD 9.4945521e-05
5,450 Crowdsourcing Applications and Platforms: A Data Management Perspective 2011 VLDB 5.5003491e-05
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7,572 Pushing the Boundaries of Crowd-enabled Databases with Query-driven Schema Expansion 2012 VLDB 4.7075553e-05
11,788 CDB: Optimizing Queries with Crowd-Based Selections and Joins 2017 SIGMOD 4.1945683e-05
5,279 CDB: A Crowd-Powered Database System 2018 VLDB 5.5902418e-05
249 Crowdsourced Databases: Query Processing with People 2011 CIDR 0.00030740523
3,935 CrowdQ: Crowdsourced Query Understanding 2013 CIDR 6.6163464e-05
1,885 CrowdDB: Query Processing with the VLDB Crowd 2011 VLDB 0.0001021098