From Information to Knowledge: Harvesting Entities and Relationships from Web Sources

Summary: Tutorial surveying methods to automatically harvest entities, classes, relations and temporal contexts from semi-structured and natural-language Web sources (e.g., Wikipedia, DBpedia, YAGO) into high-precision, high-recall knowledge bases. Discusses extraction/integration pipelines, maintenance, evaluation, and open research challenges. (summarized by gpt-5-mini on Feb 09 2026)

Paper ID: he0be59b6aea3fcf0
Venue: PODS
Year: 2010
Pagerank: 5.8724947e-05
Overall Rank: 6,091 | 59.18%
DOI: 10.1145/1807085.1807097

Incoming Non-self Citations Over Time

Authors

1. Gerhard Weikum (Max Planck Institute)
2. Martin Theobald (Max Planck Institute)

BibTeX Citation

@inproceedings{weikum_pods10,
        address = {New York, NY, USA},
        series = {{PODS} '10},
        title = {{From Information to Knowledge: Harvesting Entities and Relationships from Web Sources}},
        url = {https://dl.acm.org/doi/10.1145/1807085.1807097},
        doi = {10.1145/1807085.1807097},
        booktitle = {Proceedings of the {ACM} {SIGMOD} Symposium on {Principles} of {Database} {Systems}},
        publisher = {Association for Computing Machinery},
        author = {Weikum, Gerhard and Theobald, Martin},
        year = {2010}
}

Incoming Citations (Sorted by Pagerank)

Showing 3 of 3 citing papers.

Rank	Citing Paper	Year	Venue	Pagerank
569	Incremental Knowledge Base Construction Using DeepDive	2015	VLDB	0.00016212139
7,027	An Efficient Publish/Subscribe Index for E-Commerce Databases	2014	VLDB	5.6014394e-05
12,582	Knowledge Harvesting in the Big-Data Era	2013	SIGMOD	4.9605343e-05

Outgoing Citations (Sorted by Pagerank)

Showing 24 of 24 cited papers.

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

Rank	Cited Paper	Year	Venue	Pagerank
88	WebTables: Exploring the Power of Tables on the Web	2008	VLDB	0.00035500667
264	Record Linkage: Similarity Measures and Algorithms	2006	SIGMOD	0.0002276412
330	Declarative Information Extraction Using Datalog with Embedded Extraction Predicates	2007	VLDB	0.00020870379
484	Data Integration for the Relational Web	2009	VLDB	0.00017535511
519	RoadRunner: Towards Automatic Data Extraction from Large Web Sites	2001	VLDB	0.00016911163
600	Extracting Structured Data from Web Pages	2003	SIGMOD	0.00015700403
718	Data Integration with Uncertainty	2007	VLDB	0.00014507333
959	RDF-3X: a RISC-style Engine for RDF	2008	VLDB	0.00012825889
998	To Search or to Crawl? Towards a Query Optimizer for Text-Centric Tasks	2006	SIGMOD	0.00012590871
1,120	Principles of Dataspace Systems	2006	PODS	0.00011920747
1,155	The Lixto Data Extraction Project - Back and Forth between Theory and Practice	2004	PODS	0.00011759744
1,336	Harvesting Relational Tables from Lists on the Web	2009	VLDB	0.00010969394
1,709	EntityRank: Searching Entities Directly and Holistically	2007	VLDB	9.797723e-05
1,801	Building Structured Web Community Portals: A Top-Down, Compositional, and Incremental Approach	2007	VLDB	9.5997383e-05
2,313	Leveraging Data and Structure in Ontology Integration	2007	SIGMOD	8.6414245e-05
2,471	DBLife: A Community Information Management Platform for the Database Research Community	2007	CIDR	8.4007363e-05
2,479	A Relational Approach to Incrementally Extracting and Querying Structure in Unstructured Data	2007	VLDB	8.3884752e-05
2,624	Visual Web Information Extraction with Lixto	2001	VLDB	8.1951041e-05
2,718	Snowball: A Prototype System for Extracting Relations from Large Text Collections	2001	SIGMOD	8.0790736e-05
4,083	Uncertainty Management in Rule-Based Information Extraction Systems	2009	SIGMOD	6.8002077e-05
4,573	Extracting and Querying a Comprehensive Web Database	2009	CIDR	6.5145852e-05
5,424	Mining Document Collections to Facilitate Accurate Approximate Entity Matching	2009	VLDB	6.1229914e-05
5,545	A First Tutorial on Dataspaces	2008	VLDB	6.0723258e-05
10,055	Optimizing Complex Extraction Programs over Evolving Text Data	2009	SIGMOD	5.0779842e-05

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2	8,994	Effective Entity Augmentation By Querying External Data Sources	2023	VLDB
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10	12,582	Knowledge Harvesting in the Big-Data Era	2013	SIGMOD