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RoadRunner: Towards Automatic Data Extraction from Large Web Sites

Summary: RoadRunner enables automatic data extraction from large web sites by generating wrappers via HTML page similarity/difference analysis. Real-world data-intensive site experiments demonstrate feasibility and scalability of the wrapper generation approach. (summarized by gpt-5-nano on Feb 09 2026)

Paper ID
8926
Venue
VLDB
Year
2001
Pagerank
0.00017314037
Overall Rank
503 | 96.56%
DOI
-

Incoming Non-self Citations Over Time

Authors

BibTeX Citation

@article{crescenzi_vldb01,
        title = {{RoadRunner: Towards Automatic Data Extraction from Large Web Sites}},
        author = {Crescenzi, Valter and Mecca, Giansalvatore and Merialdo, Paolo},
        journal = {PVLDB},
        series = {{VLDB} '01},
        year = {2001}
}

Incoming Citations (Sorted by Pagerank)

Showing 31 of 31 citing papers.

Rank Citing Paper Year Venue Pagerank
588 Extracting Structured Data from Web Pages 2003 SIGMOD 0.00016092668
628 On the Provenance of Non-Answers to Queries over Extracted Data 2008 VLDB 0.00015630285
1,316 Harvesting Relational Tables from Lists on the Web 2009 VLDB 0.00011181216
1,873 A Web of Concepts 2009 PODS 9.5751398e-05
2,096 An Analysis of Structured Data on the Web 2012 VLDB 9.1746663e-05
2,372 Instance-based Schema Matching for Web Databases by Domain-specific Query Probing 2004 VLDB 8.6786716e-05
2,554 Understanding Web Query Interfaces: Best-Effort Parsing with Hidden Syntax 2004 SIGMOD 8.4252755e-05
3,340 Automatic Wrappers for Large Scale Web Extraction 2011 VLDB 7.5040045e-05
3,505 Context-Aware Wrapping: Synchronized Data Extraction 2007 VLDB 7.3582812e-05
3,523 Using the Structure of Web Sites for Automatic Segmentation of Tables 2004 SIGMOD 7.3452966e-05
3,690 Toward Large Scale Integration: Building a MetaQuerier over Databases on the Web 2005 CIDR 7.2007927e-05
3,894 Navigating the Data Lake with DATAMARAN: Automatically Extracting Structure from Log Datasets 2018 SIGMOD 7.0417782e-05
3,942 On the Complexity of Deriving Schema Mappings from Database Instances 2008 PODS 7.0063604e-05
3,943 Exploiting Content Redundancy for Web Information Extraction 2010 VLDB 7.0063237e-05
3,944 Robust Web Extraction: An Approach Based on a Probabilistic Tree-Edit Model 2009 SIGMOD 7.0058157e-05
5,235 Object-level Vertical Search 2007 CIDR 6.3047329e-05
5,585 Documentum ECI Self-Repairing Wrappers: Performance Analysis 2006 SIGMOD 6.1599116e-05
5,915 WADaR: Joint Wrapper and Data Repair 2015 VLDB 6.0437843e-05
6,011 From Information to Knowledge: Harvesting Entities and Relationships from Web Sources 2010 PODS 6.0105397e-05
6,320 CERES: Distantly Supervised Relation Extraction from the Semi-Structured Web 2018 VLDB 5.9150411e-05
6,644 Optimal Schemes for Robust Web Extraction 2011 VLDB 5.8150539e-05
6,711 RoadRunner: Automatic Data Extraction from Data-Intensive Web Sites 2002 SIGMOD 5.7963597e-05
6,809 Web Data Extraction using Hybrid Program Synthesis: A Combination of Top-down and Bottom-up Inference 2020 SIGMOD 5.7663737e-05
7,811 The Smallest Extraction Problem 2021 VLDB 5.5393291e-05
7,969 DEXTER: Large-Scale Discovery and Extraction of Product Specifications on the Web 2015 VLDB 5.5165897e-05
8,677 Visual Segmentation for Information Extraction from Heterogeneous Visually Rich Documents 2019 SIGMOD 5.3867222e-05
8,882 Measuring the Structural Similarity of Semistructured Documents Using Entropy 2007 VLDB 5.3516704e-05
12,453 ObjectRunner: Lightweight, Targeted Extraction and Querying of Structured Web Data 2010 VLDB 5.093636e-05
12,475 Building Ranked Mashups of Unstructured Sources with Uncertain Information 2010 VLDB 5.093636e-05
12,718 Automatic Extraction of Dynamic Record Sections From Search Engine Result Pages 2006 VLDB 5.093636e-05
12,783 An Automatic Data Grabber for Large Web Sites 2004 VLDB 5.093636e-05
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Outgoing Citations (Sorted by Pagerank)

Showing 3 of 3 cited papers.

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

Rank Cited Paper Year Venue Pagerank
812 NoDoSE - A Tool for Semi-Automatically Extracting Structured and Semistructured Data from Text Documents. 1998 SIGMOD 0.00013851743
2,708 Cut and Paste 1997 PODS 8.2272626e-05
2,727 To Weave the Web 1997 VLDB 8.200085e-05
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Semantically Similar Papers

# Overall Rank Paper Year Venue
1 2,329 Record-Boundary Discovery in Web Documents 1999 SIGMOD
2 588 Extracting Structured Data from Web Pages 2003 SIGMOD
3 3,944 Robust Web Extraction: An Approach Based on a Probabilistic Tree-Edit Model 2009 SIGMOD
4 8,558 An XML-based Wrapper Generator for Web Information Extraction 1999 SIGMOD
5 12,718 Automatic Extraction of Dynamic Record Sections From Search Engine Result Pages 2006 VLDB
6 6,644 Optimal Schemes for Robust Web Extraction 2011 VLDB
7 3,340 Automatic Wrappers for Large Scale Web Extraction 2011 VLDB
8 12,453 ObjectRunner: Lightweight, Targeted Extraction and Querying of Structured Web Data 2010 VLDB
9 12,783 An Automatic Data Grabber for Large Web Sites 2004 VLDB
10 6,711 RoadRunner: Automatic Data Extraction from Data-Intensive Web Sites 2002 SIGMOD