ALEX: Automatic Link Exploration in Linked Data

Summary: ALEX starts from candidate links and uses user feedback on query results to improve link quality. It discovers new links near approved ones with Monte-Carlo reinforcement learning, preserving precision. (summarized by gpt-5-nano on Feb 09 2026)

Paper ID: 5107
Venue: SIGMOD
Year: 2015
Pagerank: 5.4403598e-05
Overall Rank: 8,372 | 42.57%
DOI: 10.1145/2723372.2749428

Incoming Non-self Citations Over Time

Authors

1. Ahmed El-Roby (University of Waterloo)
2. Ashraf Aboulnaga (Qatar Computing Research Institute)

BibTeX Citation

@inproceedings{elroby_sigmod15,
        title = {{ALEX: Automatic Link Exploration in Linked Data}},
        author = {El-Roby, Ahmed and Aboulnaga, Ashraf},
        series = {{SIGMOD} '15},
        booktitle = {Proceedings of the {ACM} {SIGMOD} International Conference on Management of Data},
        publisher = {Association for Computing Machinery},
        doi = {10.1145/2723372.2749428},
        url = {https://dl.acm.org/doi/10.1145/2723372.2749428},
        year = {2015}
}

Incoming Citations (Sorted by Pagerank)

Showing 1 of 1 citing papers.

Rank	Citing Paper	Year	Venue	Pagerank
4,056	A Benchmarking Study of Embedding-based Entity Alignment for Knowledge Graphs	2020	VLDB	6.9344762e-05

Outgoing Citations (Sorted by Pagerank)

Showing 6 of 6 cited papers.

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

Rank	Cited Paper	Year	Venue	Pagerank
65	Freebase: A Collaboratively Created Graph Database For Structuring Human Knowledge	2008	SIGMOD	0.00038697603
866	Pay-as-you-go User Feedback for Dataspace Systems	2008	SIGMOD	0.00013519288
933	Question Selection for Crowd Entity Resolution	2013	VLDB	0.00013111293
1,158	Schema and Ontology Matching with COMA++	2005	SIGMOD	0.00011899424
2,086	PARIS: Probabilistic Alignment of Relations, Instances, and Schema	2012	VLDB	9.1930537e-05
4,910	Actively Soliciting Feedback for Query Answers in Keyword Search-Based Data Integration	2013	VLDB	6.4484207e-05

Semantically Similar Papers

#	Overall Rank	Paper	Year	Venue
1	13,520	IMPROVE-QA: An Interactive Mechanism for RDF Question/Answering Systems	2018	SIGMOD
2	4,910	Actively Soliciting Feedback for Query Answers in Keyword Search-Based Data Integration	2013	VLDB
3	13,624	Natural Language Question Answering over RDF Data	2013	SIGMOD
4	11,905	Efficient Exploration of Linked Data	2018	SIGMOD
5	9,149	Semantic SPARQL Similarity Search Over RDF Knowledge Graphs	2016	VLDB
6	5,168	How to Build Templates for RDF Question/Answering —An Uncertain Graph Similarity Join Approach	2015	SIGMOD
7	2,677	Explore-by-Example: An Automatic Query Steering Framework for Interactive Data Exploration	2014	SIGMOD
8	4,736	REX: Explaining Relationships between Entity Pairs	2012	VLDB
9	3,981	Natural Language Question Answering over RDF — A Graph Data Driven Approach	2014	SIGMOD
10	9,339	Efficient Exploration of Interesting Aggregates in RDF Graphs	2021	SIGMOD