CDAS: A Crowdsourcing Data Analytics System

Summary: CDAS is a crowdsourcing analytics framework that integrates human and machine tasks through a quality-sensitive query model. It estimates worker-driven result accuracy, adaptively verifies answers online, and reduces cost while meeting accuracy targets in Twitter sentiment and image-tagging workloads. (summarized by gpt-5.6-luna on Jul 24 2026)

Paper ID: heee3da37a68b1309
Venue: VLDB
Year: 2012
Pagerank: 0.0001128316
Overall Rank: 1,264 | 91.51%
DOI: 10.14778/2336664.2336672

Incoming Non-self Citations Over Time

Authors

1. Xuan Liu (National University of Singapore)
2. Meiyu Lu (National University of Singapore)
3. Beng Chin Ooi (National University of Singapore)
4. Yanyan Shen (National University of Singapore)
5. Sai Wu (Zhejiang University)
6. Meihui Zhang (National University of Singapore)

BibTeX Citation

@article{liu_vldb12,
        title = {{CDAS: A Crowdsourcing Data Analytics System}},
        author = {Liu, Xuan and Lu, Meiyu and Ooi, Beng Chin and Shen, Yanyan and Wu, Sai and Zhang, Meihui},
        journal = {PVLDB},
        series = {{VLDB} '12},
        volume = {5},
        number = {10},
        pages = {1040--1051},
        doi = {10.14778/2336664.2336672},
        url = {https://doi.org/10.14778/2336664.2336672},
        year = {2012}
}

Incoming Citations (Sorted by Pagerank)

Showing 26 of 26 citing papers.

Rank	Citing Paper	Year	Venue	Pagerank
433	Corleone: Hands-Off Crowdsourcing for Entity Matching	2014	SIGMOD	0.00018332741
871	Leveraging Transitive Relations for Crowdsourced Joins	2013	SIGMOD	0.00013343705
3,171	Truth Inference in Crowdsourcing: Is the Problem Solved?	2017	VLDB	7.5691557e-05
3,197	iCrowd: An Adaptive Crowdsourcing Framework	2015	SIGMOD	7.5455503e-05
3,307	Cleaning Crowdsourced Labels Using Oracles for Statistical Classification	2019	VLDB	7.4414303e-05
3,372	Finish Them!: Pricing Algorithms for Human Computation	2014	VLDB	7.3693102e-05
3,839	QASCA: A Quality-Aware Task Assignment System for Crowdsourcing Applications	2015	SIGMOD	6.9921604e-05
4,051	Crowd-Based Deduplication: An Adaptive Approach	2015	SIGMOD	6.8285415e-05
4,623	Cost-Effective Crowdsourced Entity Resolution: A Partial-Order Approach	2016	SIGMOD	6.4978811e-05
5,250	An Online Cost Sensitive Decision-Making Method in Crowdsourcing Systems	2013	SIGMOD	6.2097153e-05
6,233	Fine-grained Concept Linking using Neural Networks in Healthcare	2018	SIGMOD	5.8420918e-05
6,925	Interactive Graph Search	2019	SIGMOD	5.6423723e-05
7,052	Cost-Effective Data Annotation using Game-Based Crowdsourcing	2019	VLDB	5.6127577e-05
7,089	Answering Planning Queries with the Crowd	2013	VLDB	5.6018191e-05
7,228	OASSIS: Query Driven Crowd Mining	2014	SIGMOD	5.5805857e-05
7,500	Crowdsourced Data Management: Overview and Challenges	2017	SIGMOD	5.5083793e-05
8,518	Minimizing Efforts in Validating Crowd Answers	2015	SIGMOD	5.3243701e-05
8,523	PACE: Learning Effective Task Decomposition for Human-in-the-loop Healthcare Delivery	2021	SIGMOD	5.3231606e-05
8,955	Understanding Workers, Developing Effective Tasks, and Enhancing Marketplace Dynamics: A Study of a Large Crowdsourcing Marketplace	2017	VLDB	5.2510657e-05
9,191	Interactive Graph Search for Multiple Targets on DAGs	2025	VLDB	5.2110714e-05
9,583	CDB: Optimizing Queries with Crowd-Based Selections and Joins	2017	SIGMOD	5.1571823e-05
10,037	CrowdDQS: Dynamic Question Selection in Crowdsourcing Systems	2017	SIGMOD	5.0925155e-05
10,220	tDP: An Optimal-Latency Budget Allocation Strategy for Crowdsourced MAXIMUM Operations	2015	SIGMOD	5.0580396e-05
10,850	Noisy Interactive Graph Search: An Uncertainty-Based Approach with Online Modeling of Latent Expertise and Difficulty	2026	VLDB	4.9793485e-05
12,235	A Demonstration of PERC: Probabilistic Entity Resolution With Crowd Errors	2018	VLDB	4.9793485e-05
12,314	DOCS: Domain-Aware Crowdsourcing System	2017	VLDB	4.9793485e-05

Outgoing Citations (Sorted by Pagerank)

Showing 7 of 7 cited papers.

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

Rank	Cited Paper	Year	Venue	Pagerank
92	CrowdDB: Answering Queries with Crowdsourcing	2011	SIGMOD	0.00034672523
257	Crowdsourced Databases: Query Processing with People	2011	CIDR	0.00022962347
259	Answering Queries using Humans, Algorithms and Databases	2011	CIDR	0.00022923243
787	Human-Assisted Graph Search: It’s Okay to Ask Questions	2011	VLDB	0.00013988274
877	Integrating Conflicting Data: The Role of Source Dependence	2009	VLDB	0.00013306717
2,192	Demonstration of Qurk: A Query Processor for Human Operators	2011	SIGMOD	8.8821872e-05
3,079	Online Data Fusion	2011	VLDB	7.6698103e-05

Semantically Similar Papers

#	Overall Rank	Paper	Year	Venue
1	933	Question Selection for Crowd Entity Resolution	2013	VLDB
2	5,466	Crowdsourcing Applications and Platforms: A Data Management Perspective	2011	VLDB
3	8,664	CrowdGame: A Game-Based Crowdsourcing System for Cost-Effective Data Labeling	2019	SIGMOD
4	92	CrowdDB: Answering Queries with Crowdsourcing	2011	SIGMOD
5	3,197	iCrowd: An Adaptive Crowdsourcing Framework	2015	SIGMOD
6	5,614	CrowdQ: Crowdsourced Query Understanding	2013	CIDR
7	2,642	Scaling Up Crowd-Sourcing to Very Large Datasets: A Case for Active Learning	2015	VLDB
8	3,839	QASCA: A Quality-Aware Task Assignment System for Crowdsourcing Applications	2015	SIGMOD
9	5,250	An Online Cost Sensitive Decision-Making Method in Crowdsourcing Systems	2013	SIGMOD
10	7,500	Crowdsourced Data Management: Overview and Challenges	2017	SIGMOD