AJAX: An Extensible Data Cleaning Tool

Summary: AJAX is an extensible data-cleaning tool that models programs as a directed graph of transformations (mapping, similarity-based matching, clustering, merging) via a declarative SQL-like language. It offers interactive execution and debugging, demonstrated on telecom consolidation and bibliographic normalization. (summarized by gpt-5-nano on Feb 09 2026)

Paper ID: 3302
Venue: SIGMOD
Year: 2000
Pagerank: 0.00014369237
Overall Rank: 751 | 94.85%
DOI: 10.1145/342009.336568

Incoming Non-self Citations Over Time

Authors

1. Helena Galhardas (INRIA; Instituto Superior Tecnico)
2. Daniela Florescu (INRIA)
3. Dennis Shasha (Courant Institute of Mathematical Sciences, New York University)
4. Eric Simon (INRIA)

BibTeX Citation

@inproceedings{galhardas_sigmod00,
        title = {{AJAX: An Extensible Data Cleaning Tool}},
        author = {Galhardas, Helena and Florescu, Daniela and Shasha, Dennis and Simon, Eric},
        series = {{SIGMOD} '00},
        booktitle = {Proceedings of the {ACM} {SIGMOD} International Conference on Management of Data},
        publisher = {Association for Computing Machinery},
        doi = {10.1145/342009.336568},
        url = {https://dl.acm.org/doi/10.1145/342009.336568},
        year = {2000}
}

Incoming Citations (Sorted by Pagerank)

Showing 13 of 13 citing papers.

Rank	Citing Paper	Year	Venue	Pagerank
94	Potter's Wheel: An Interactive Data Cleaning System	2001	VLDB	0.00034616103
185	A Cost-Based Model and Effective Heuristic for Repairing Constraints by Value Modification	2005	SIGMOD	0.00026231189
432	Mining Database Structure; Or, How to Build a Data Quality Browser	2002	SIGMOD	0.00018572055
533	Improving Data Quality: Consistency and Accuracy	2007	VLDB	0.0001705859
714	Guided Data Repair	2011	VLDB	0.00014662041
1,866	Predictive Interaction for Data Transformation	2015	CIDR	9.5914583e-05
2,759	Data X-Ray: A Diagnostic Tool for Data Errors	2015	SIGMOD	8.1577506e-05
3,568	MOMA - A Mapping-based Object Matching System	2007	CIDR	7.3021209e-05
3,611	NADEEF/ER: Generic and Interactive Entity Resolution	2014	SIGMOD	7.2580469e-05
4,059	GDR: A System for Guided Data Repair	2010	SIGMOD	6.9330647e-05
4,959	QFix: Diagnosing Errors through Query Histories	2017	SIGMOD	6.4283324e-05
5,391	MDedup: Duplicate Detection with Matching Dependencies	2020	VLDB	6.2343031e-05
12,817	Systematic Development of Data Mining-Based Data Quality Tools	2003	VLDB	5.093636e-05

Outgoing Citations (Sorted by Pagerank)

Showing 0 of 0 cited papers.

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

Rank	Cited Paper	Year	Venue	Pagerank

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8	7,179	CleanM: An Optimizable Query Language for Unified Scale-Out Data Cleaning	2017	VLDB
9	11,877	IHCS: An Integrated Hybrid Cleaning System	2019	VLDB
10	201	Declarative Data Cleaning: Language, Model, and Algorithms	2001	VLDB