Extracting and Querying a Comprehensive Web Database

Summary: Omnivore builds a comprehensive web-scale entity-relationship DB by running multiple domain-independent extractors (tables, text, relations) in parallel over a crawl and merging heterogeneous outputs to overcome model-specific blind spots. Provides SQL-like and search interfaces, supports user corrections, and automatically selects output model/schema to render results without prior metadata. (summarized by gpt-5-mini on Feb 09 2026)

Paper ID: 105
Venue: CIDR
Year: 2009
Pagerank: 6.6193836e-05
Overall Rank: 3,931 | 72.66%
DOI: -

Incoming Non-self Citations Over Time

Authors

1. Michael J. Cafarella

Incoming Citations (Sorted by Pagerank)

Showing 4 of 4 citing papers.

Rank	Citing Paper	Year	Venue	Pagerank
5,652	From Information to Knowledge: Harvesting Entities and Relationships from Web Sources	2010	PODS	5.3903671e-05
9,359	IQ: The Case for Iterative Querying for Knowledge	2011	CIDR	4.3509599e-05
12,044	Knowledge Harvesting in the Big-Data Era	2013	SIGMOD	4.1945683e-05
12,244	DoCQS: A Prototype System for Supporting Data-oriented Content Query	2010	SIGMOD	4.1945683e-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
62	Freebase: A Collaboratively Created Graph Database For Structuring Human Knowledge	2008	SIGMOD	0.0006429466
107	WebTables: Exploring the Power of Tables on the Web	2008	VLDB	0.00048377684
188	Applying Model Management to Classical Meta Data Problems	2003	CIDR	0.00035968389
229	Reference Reconciliation in Complex Information Spaces	2005	SIGMOD	0.00032242633
1,395	Structured Querying of Web Text: A Technical Challenge	2007	CIDR	0.00012207039
1,722	Building Structured Web Community Portals: A Top-Down, Compositional, and Incremental Approach	2007	VLDB	0.00010757784
1,980	Snowball: A Prototype System for Extracting Relations from Large Text Collections	2001	SIGMOD	9.8785341e-05

Semantically Similar Papers

Overall Rank	Paper	Year	Venue	Pagerank
518	Data Integration for the Relational Web	2009	VLDB	0.00021158934
107	WebTables: Exploring the Power of Tables on the Web	2008	VLDB	0.00048377684
2,617	Extraction and Integration of Partially Overlapping Web Sources	2013	VLDB	8.4462621e-05
6,133	DIADEM: Thousands of Websites to a Single Database	2014	VLDB	5.1954702e-05
11,844	Potential and Pitfalls of Domain-Specific Information Extraction at Web Scale	2016	SIGMOD	4.1945683e-05
3,724	Toward Large Scale Integration: Building a MetaQuerier over Databases on the Web	2005	CIDR	6.8173288e-05
2,319	Expressive and Flexible Access to Web-Extracted Data: A Keyword-based Structured Query Language	2010	SIGMOD	9.0387108e-05
12,258	ObjectRunner: Lightweight, Targeted Extraction and Querying of Structured Web Data	2010	VLDB	4.1945683e-05
5,774	A Hierarchical Approach to Model Web Query Interfaces for Web Source Integration	2009	VLDB	5.3313642e-05
1,395	Structured Querying of Web Text: A Technical Challenge	2007	CIDR	0.00012207039