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: 5.886265e-05
Overall Rank: 6,104 | 58.97%
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
579	Incremental Knowledge Base Construction Using DeepDive	2015	VLDB	0.00016086569
7,007	An Efficient Publish/Subscribe Index for E-Commerce Databases	2014	VLDB	5.6226844e-05
12,533	Knowledge Harvesting in the Big-Data Era	2013	SIGMOD	4.9793485e-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
89	WebTables: Exploring the Power of Tables on the Web	2008	VLDB	0.00035129658
262	Record Linkage: Similarity Measures and Algorithms	2006	SIGMOD	0.00022821392
328	Declarative Information Extraction Using Datalog with Embedded Extraction Predicates	2007	VLDB	0.00020928928
484	Data Integration for the Relational Web	2009	VLDB	0.00017548541
515	RoadRunner: Towards Automatic Data Extraction from Large Web Sites	2001	VLDB	0.00016970049
599	Extracting Structured Data from Web Pages	2003	SIGMOD	0.0001575536
715	Data Integration with Uncertainty	2007	VLDB	0.00014559092
954	RDF-3X: a RISC-style Engine for RDF	2008	VLDB	0.00012867202
997	To Search or to Crawl? Towards a Query Optimizer for Text-Centric Tasks	2006	SIGMOD	0.00012633809
1,114	Principles of Dataspace Systems	2006	PODS	0.00011964697
1,154	The Lixto Data Extraction Project - Back and Forth between Theory and Practice	2004	PODS	0.00011793227
1,337	Harvesting Relational Tables from Lists on the Web	2009	VLDB	0.00010987014
1,711	EntityRank: Searching Entities Directly and Holistically	2007	VLDB	9.8182129e-05
1,794	Building Structured Web Community Portals: A Top-Down, Compositional, and Incremental Approach	2007	VLDB	9.6220467e-05
2,300	Leveraging Data and Structure in Ontology Integration	2007	SIGMOD	8.6724454e-05
2,462	DBLife: A Community Information Management Platform for the Database Research Community	2007	CIDR	8.4317833e-05
2,477	A Relational Approach to Incrementally Extracting and Querying Structure in Unstructured Data	2007	VLDB	8.4079432e-05
2,615	Visual Web Information Extraction with Lixto	2001	VLDB	8.2253533e-05
2,737	Snowball: A Prototype System for Extracting Relations from Large Text Collections	2001	SIGMOD	8.0734152e-05
4,057	Uncertainty Management in Rule-Based Information Extraction Systems	2009	SIGMOD	6.8257248e-05
4,554	Extracting and Querying a Comprehensive Web Database	2009	CIDR	6.5391226e-05
5,403	Mining Document Collections to Facilitate Accurate Approximate Entity Matching	2009	VLDB	6.1459021e-05
5,523	A First Tutorial on Dataspaces	2008	VLDB	6.0951795e-05
10,014	Optimizing Complex Extraction Programs over Evolving Text Data	2009	SIGMOD	5.0970738e-05

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2	8,964	Effective Entity Augmentation By Querying External Data Sources	2023	VLDB
3	3,245	InfoGather+: Semantic Matching and Annotation of Numeric and Time-Varying Attributes in Web Tables	2013	SIGMOD
4	12,398	Knowledge Curation and Knowledge Fusion: Challenges, Models, and Applications	2015	SIGMOD
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10	12,533	Knowledge Harvesting in the Big-Data Era	2013	SIGMOD